Mar Field Fen
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Mar Field Fen is a
Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of ...
, or SSSI, north of
Masham Masham ( ) is a market town and civil parish in the Harrogate district of North Yorkshire, England. It had a population of 1,205 at the 2011 census. Etymology In Wensleydale, on the western bank of the River Ure, the name derives from the An ...
,
North Yorkshire North Yorkshire is the largest ceremonial counties of England, ceremonial county (lieutenancy area) in England, covering an area of . Around 40% of the county is covered by National parks of the United Kingdom, national parks, including most of ...
, England, in a
rural area In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry typically are descri ...
known as Marfield. It is situated on land containing woodland carr,
fen A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetlands along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. T ...
,
spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...
-fed
marshy A marsh is a wetland that is dominated by Herbaceous plant, herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can ...
grassland and drier
calcareous grassland Calcareous grassland (or alkaline grassland) is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous grassland are typically short and hardy, and include grasses and herbs such as clover ...
, between the
River Ure The River Ure in North Yorkshire, England is approximately long from its source to the point where it becomes the River Ouse. It is the principal river of Wensleydale, which is the only major dale now named after a village rather than its ...
to the east and Marfield Wetland
nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or ...
to the west. As "one of the best examples of fen habitat in the
Vale of York The Vale of York is an area of flat land in the northeast of England. The vale is a major agricultural area and serves as the main north–south transport corridor for Northern England. The Vale of York is often supposed to stretch from the R ...
," it is a protected habitat for a variety of plants, including the
common butterwort ''Pinguicula vulgaris'', the common butterwort, is a perennial carnivorous plant in the bladderwort family, Lentibulariaceae. Description It grows to a height of 3–16 cm, and is topped with a purple, and occasionally white, flower that is ...
, a
carnivorous plant Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans Protozoa (singular: protozoan or protozoon; alternative plural: protozoans) are a group of single-celled eukaryot ...
. There is no public access to this site.


Site history

In the 19th century, the site was in
hunting Hunting is the human activity, human practice of seeking, pursuing, capturing, or killing wildlife or feral animals. The most common reasons for humans to hunt are to harvest food (i.e. meat) and useful animal products (fur/hide (skin), hide, ...
country, where the
Bedale Bedale ( ) is a market town and civil parish in the district of Hambleton, North Yorkshire, England. Historically part of the North Riding of Yorkshire, it is north of Leeds, south-west of Middlesbrough and south-west of the county town of ...
Hunt would run. The entrants for the annual Bedale Hunt
steeplechase Steeplechase may refer to: * Steeplechase (horse racing), a type of horse race in which participants are required to jump over obstacles * Steeplechase (athletics), an event in athletics that derives its name from the steeplechase in horse racing ...
would gather in a field called ''Marfield'', a drier place adjacent to the present SSSI site, before moving on to a field called ''Whitefield'' for the start of the race.


Site location and designation

Mar Field Fen is a biological
Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of ...
(SSSI), consisting of woodland carr,
fen A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetlands along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. T ...
and calcareous meadow whose flush and spring fed soils support certain specialised vegetation. The site lies north of
Masham Masham ( ) is a market town and civil parish in the Harrogate district of North Yorkshire, England. It had a population of 1,205 at the 2011 census. Etymology In Wensleydale, on the western bank of the River Ure, the name derives from the An ...
,
North Yorkshire North Yorkshire is the largest ceremonial counties of England, ceremonial county (lieutenancy area) in England, covering an area of . Around 40% of the county is covered by National parks of the United Kingdom, national parks, including most of ...
, on the west bank of the
River Ure The River Ure in North Yorkshire, England is approximately long from its source to the point where it becomes the River Ouse. It is the principal river of Wensleydale, which is the only major dale now named after a village rather than its ...
. There are public footpaths to the east and west of the site, but no public access, vehicle access or facilities. The site was notified on 2 October 1988, being of interest for being "one of the best examples of fen habitat in the
Vale of York The Vale of York is an area of flat land in the northeast of England. The vale is a major agricultural area and serves as the main north–south transport corridor for Northern England. The Vale of York is often supposed to stretch from the R ...
." Mar Field Fen SSSI is not to be confused with Marfield Wetlands nature reserve which contains lakes, and lies to the west of the SSSI. Unlike the SSSI, Marfield Wetlands has a car park,
bird hide A bird hide (blind or bird blind in North America) is a shelter, often camouflaged, that is used to observe wildlife, especially birds, at close quarters. Although hides or hunting blinds were once built chiefly as hunting aids, they are now commo ...
s and public facilities.


Significant site content


Flora

On the
fen A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetlands along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. T ...
meadow A meadow ( ) is an open habitat, or field, vegetated by grasses, herbs, and other non-woody plants. Trees or shrubs may sparsely populate meadows, as long as these areas maintain an open character. Meadows may be naturally occurring or artifi ...
are many species of
herbaceous plant Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of t ...
s, including spotted orchid, common bistort, greater bird's foot trefoil,
common valerian Valerian (''Valeriana officinalis'', Caprifoliaceae) is a perennial plant, perennial flowering plant native to Europe and Asia. In the summer when the mature plant may have a height of , it bears sweetly scented pink or white flowers that attrac ...
, marsh hawksbeard,
wild angelica ''Angelica sylvestris'' or wild angelica is a species of flowering plant, native to Europe and central Asia. An annual or short-lived perennial growing to a maximum of , it has erect purplish stems and rounded umbels of minuscule white or pale p ...
,
ragged robin ''Silene flos-cuculi'' (syn. ''Lychnis flos-cuculi''), commonly called ragged-robin, is a perennial herbaceous plant in the family Caryophyllaceae. This species is native to Europe and Asia, where it is found along roads and in wet meadows and p ...
and meadowsweet. These grow beside or among the "locally uncommon" blunt-flowered rush and
greater tussock-sedge ''Carex paniculata'', the greater tussock-sedge, is a species of flowering plant in the sedge family, Cyperaceae. It grows high and can be found in most of Europe (including Britain), Northwest Asia and North America North America i ...
. Other fen plants here include common reed ''(
Phragmites australis ''Phragmites australis'', known as the common reed, is a species of plant. It is a broadly distributed wetland grass that can grow up to tall. Description ''Phragmites australis'' commonly forms extensive stands (known as reed beds), which may ...
)'', jointed rush, hairy sedge and
lesser pond sedge ''Carex acutiformis'', the lesser pond-sedge, is a species of sedge. Description It grows up to tall, with leaves up to long and wide. Ecology It is native to parts of northern and western Europe, where it grows in moist spots in a number of ...
. Within the site there is also a drier
calcareous grassland Calcareous grassland (or alkaline grassland) is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous grassland are typically short and hardy, and include grasses and herbs such as clover ...
with its own flora. Juncus subnodulosus - trubbtåg-4374 - Flickr - Ragnhild & Neil Crawford.jpg, Blunt-flowered rush Carex paniculata inflorescens (06).jpg,
Greater tussock-sedge ''Carex paniculata'', the greater tussock-sedge, is a species of flowering plant in the sedge family, Cyperaceae. It grows high and can be found in most of Europe (including Britain), Northwest Asia and North America North America i ...
Dactylorhiza maculata (14361037131).jpg, Spotted orchid Polygonum bistorta ENBLA02.JPG, Common bistort 20160517Valeriana officinalis3.jpg,
Common valerian Valerian (''Valeriana officinalis'', Caprifoliaceae) is a perennial plant, perennial flowering plant native to Europe and Asia. In the summer when the mature plant may have a height of , it bears sweetly scented pink or white flowers that attrac ...
Crepis paludosa ENBLA01.jpeg, Marsh hawksbeard
At the north end of the site there is "
flushed Flushing is to become markedly red in the face and often other areas of the skin, from various physiological conditions. Flushing is generally distinguished, despite a close physiological relation between them, from blushing, which is milder, gene ...
ground," or land with much
seepage Soil mechanics is a branch of soil physics and applied mechanics that describes the behavior of soils. It differs from fluid mechanics and solid mechanics in the sense that soils consist of a heterogeneous mixture of fluids (usually air and wat ...
from the
aquifer An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characterist ...
; some of its plants are "particularly scarce and localised." For example, there is the brown moss '' Drepanocladus revolvens'' and tussocks of
purple moor-grass ''Molinia caerulea'', known by the common name purple moor-grass, is a species of grass that is native to Europe, west Asia, and north Africa. It grows in locations from the lowlands up to in the Alps. Like most grasses, it grows best in acid so ...
. There are also tussocks of bog rush, and on these tussocks are
common butterwort ''Pinguicula vulgaris'', the common butterwort, is a perennial carnivorous plant in the bladderwort family, Lentibulariaceae. Description It grows to a height of 3–16 cm, and is topped with a purple, and occasionally white, flower that is ...
and flea sedge. The fen
spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...
-lines have their own special plants: broad-leaved cottongrass ''(
Eriophorum latifolium ''Eriophorum latifolium'', commonly known as broad-leaved bog-cotton and broad leaved cotton grass ...
)'' which is classed as "uncommon",
bogbean ''Menyanthes'' is a monotypic genus of flowering plants in the family Menyanthaceae containing the single species ''Menyanthes trifoliata''. The North American form is often referred to as ''M. trifoliata'' var. ''minor'' Michx. It is known ...
,
early marsh orchid ''Dactylorhiza incarnata'', the early marsh-orchid, is a perennial, temperate-climate species of orchid generally found growing in wet meadows, and generally on base-rich soils, up to about 2100m asl. The species occurs widely in Europe and Asia ...
, marsh valerian ''(
Valeriana dioica ''Valeriana dioica'', the marsh valerian, is a species of flowering plant in the genus ''Valeriana ''Valeriana'' is a genus of flowering plants in the family Caprifoliaceae, members of which may by commonly known as valerians. It contains many ...
)'',
glaucous sedge ''Carex flacca'', with common names blue sedge, gray carex, glaucous sedge, or carnation-grass, (syn. ''Carex glauca''), is a species of sedge native to parts of Europe and North Africa.
,
carnation sedge ''Carex panicea'', commonly known as carnation sedge, is a plant species in the sedge family, Cyperaceae. It is known as grass-like sedge and can be found in Northern and Western Europe, and also in north-eastern North America. The plant produces ...
and long-stalked yellow sedge ''(
Carex lepidocarpa ''Carex lepidocarpa'', called the long-stalked yellow-sedge, is a species of flowering plant in the genus ''Carex'', native to eastern Canada, Morocco, and most of Europe. It is a member of the '' Carex flava'' species complex In biology, a s ...
)''. Drepanocladus revolvens.jpeg, Brown moss '' Drepanocladus revolvens'' Molinia caerulea 1zz.jpg,
Purple moor-grass ''Molinia caerulea'', known by the common name purple moor-grass, is a species of grass that is native to Europe, west Asia, and north Africa. It grows in locations from the lowlands up to in the Alps. Like most grasses, it grows best in acid so ...
Schoenus nigricans kz2.jpg, Bog rush Pinguicula vulgaris (29068100938).jpg,
Common butterwort ''Pinguicula vulgaris'', the common butterwort, is a perennial carnivorous plant in the bladderwort family, Lentibulariaceae. Description It grows to a height of 3–16 cm, and is topped with a purple, and occasionally white, flower that is ...
Eriophorum latifolium1.jpg, Broad-leaved cottongrass ''(
Eriophorum latifolium ''Eriophorum latifolium'', commonly known as broad-leaved bog-cotton and broad leaved cotton grass ...
)'' Dactylorhiza incarnata in Jardin Botanique de l'Aubrac 01.jpg,
Early marsh orchid ''Dactylorhiza incarnata'', the early marsh-orchid, is a perennial, temperate-climate species of orchid generally found growing in wet meadows, and generally on base-rich soils, up to about 2100m asl. The species occurs widely in Europe and Asia ...
Where the fen meadow and woodland carr meet, there is giant bellflower,
marsh horsetail ''Equisetum palustre'', the marsh horsetail, is a plant species belonging to the division of horsetails (Equisetopsida). It is widespread in cooler regions of North America and Eurasia. Description ''Equisetum palustre'' is a perennial crypt ...
,
hemp agrimony ''Eupatorium cannabinum'', commonly known as hemp-agrimony, or holy rope, is a herbaceous plant in the family Asteraceae. It is a robust perennial native to many areas of Europe. The alkaloids may be present in the plant material as their N-oxide ...
,
yellow iris ''Iris pseudacorus'', the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet ''pseudacorus'' means "false acorus", ref ...
or flag,
marsh marigold ''Caltha palustris'', known as marsh-marigold and kingcup, is a small to medium size perennial herbaceous plant of the buttercup family, native to marshes, fens, ditches and wet woodland in temperate regions of the Northern Hemisphere. It flower ...
and meadowsweet. In drier places under the trees are:
wood anemone The phrase wood anemone is used in common names for several closely related species of flowering plants in genus ''Anemonoides'', including: * ''Anemonoides nemorosa ''Anemonoides nemorosa'' (syn. ''Anemone nemorosa''), the wood anemone, is an e ...
,
enchanter's nightshade The ''Circaea'', or enchanter's nightshades, are a genus of flowering plants in the evening primrose family Onagraceae. About two dozen taxa have been described, including eight species. Plants of the genus occur throughout the temperate and bor ...
and
dog's mercury ''Mercurialis perennis'', commonly known as dog's mercury, is a poisonous woodland plant found in much of Europe as well as in Algeria, Iran, Turkey, and the Caucasus, but almost absent from Ireland, Orkney and Shetland.guelder rose ''Viburnum opulus'', the guelder-rose or guelder rose () is a species of flowering plant in the family Adoxaceae (formerly Caprifoliaceae) native to Europe, northern Africa and central Asia. Description ''Viburnum opulus'' is a deciduous shru ...
and
grey willow Grey willow or gray willow may refer to: *''Salix atrocinerea'', a species of willow native to Europe commonly called grey willow *''Salix cinerea'', a species of willow native to Europe and western Asia, also occasionally called grey sallow *''Sal ...
or common sallow. The woodland carr itself has been partially planted with
pine A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accep ...
and poplar, but the remaining natural or original
canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), aboveground portion of grapes Religion and ceremonies * Baldachin or canopy of state, typically placed over an a ...
is
ash Ash or ashes are the solid remnants of fires. Specifically, ''ash'' refers to all non-aqueous, non- gaseous residues that remain after something burns. In analytical chemistry, to analyse the mineral and metal content of chemical samples, ash ...
and
alder Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few sp ...
. ValleyOfFlowers purpleflower.JPG, Giant bellflower 20150422Equisetum palustre1.jpg,
Marsh horsetail ''Equisetum palustre'', the marsh horsetail, is a plant species belonging to the division of horsetails (Equisetopsida). It is widespread in cooler regions of North America and Eurasia. Description ''Equisetum palustre'' is a perennial crypt ...
Atlas roslin pl Sadziec konopiasty 4086 6970.jpg,
Hemp agrimony ''Eupatorium cannabinum'', commonly known as hemp-agrimony, or holy rope, is a herbaceous plant in the family Asteraceae. It is a robust perennial native to many areas of Europe. The alkaloids may be present in the plant material as their N-oxide ...
20150531Iris pseudacorus.jpg,
Yellow iris ''Iris pseudacorus'', the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet ''pseudacorus'' means "false acorus", ref ...
or flag 20150627Circaea lutetiana2.jpg,
Enchanter's nightshade The ''Circaea'', or enchanter's nightshades, are a genus of flowering plants in the evening primrose family Onagraceae. About two dozen taxa have been described, including eight species. Plants of the genus occur throughout the temperate and bor ...
20140311Salix cinerea2.jpg,
Grey willow Grey willow or gray willow may refer to: *''Salix atrocinerea'', a species of willow native to Europe commonly called grey willow *''Salix cinerea'', a species of willow native to Europe and western Asia, also occasionally called grey sallow *''Sal ...
or common sallow
catkin A catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind-pollinated (anemophilous) but sometimes insect-pollinated (as in ''Salix''). They contain many, usually unisexual flowers, arranged cl ...
s


Maintenance

In the woodland carr, minimum interference with natural growth and die-back is recommended, because fallen trees and regrowth will encourage the natural development of diverse
habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...
s, such as
glade Glade may refer to: Computing *Glade Interface Designer, a GUI designer for GTK+ and GNOME Geography *Glade (geography), open area in woodland, synonym for "clearing" **Glade skiing, skiing amongst trees ;Places in the United States *Glade, Kansa ...
s, areas of young trees, and a mixture of light and shade, and shelter or exposure to wind. It may sometimes be necessary to cut back scrub if the woodland encroaches onto
meadow A meadow ( ) is an open habitat, or field, vegetated by grasses, herbs, and other non-woody plants. Trees or shrubs may sparsely populate meadows, as long as these areas maintain an open character. Meadows may be naturally occurring or artifi ...
, or to
coppice Coppicing is a traditional method of woodland management which exploits the capacity of many species of trees to put out new shoots from their stump or roots if cut down. In a coppiced wood, which is called a copse, young tree stems are repeated ...
trees to open up the area to light or to prevent trees from falling. Public access should be restricted to protect breeding wildlife or for the sake of
public safety Public security or public safety is the prevention of and protection from events that could endanger the safety and security of the public from significant danger, injury, or property damage. It is often conducted by a state government to ensure ...
. The flush and spring fen area should be protected from potential risk of commercial
water abstraction Water extraction (or water withdrawal) is the process of taking water from any source, either temporarily or permanently, for flood control or to obtain water for, for example, irrigation. The extracted water could also be used as drinking wate ...
which would deplete the
aquifer An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characterist ...
, and from agricultural
fertiliser A fertilizer (American English) or fertiliser (British English; see spelling differences) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from ...
or
landfill A landfill site, also known as a tip, dump, rubbish dump, garbage dump, or dumping ground, is a site for the disposal of waste materials. Landfill is the oldest and most common form of waste disposal, although the systematic burial of the waste ...
pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...
. All of these would disrupt the chemical balance in the aquifer and consequently in the soil, and that in turn would encourage rank grasses, and cause depletion of specialised fen plants. The quality of fen
biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') l ...
should be monitored for signs of change. Light autumn
grazing In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to roam around and consume wild vegetations in order to convert the otherwise indigestible (by human gut) cellulose within grass and other ...
and trampling by cattle is beneficial, so long as the land is not enriched by
cattle dung Cow dung, also known as cow pats, cow pies or cow manure, is the waste product (faeces) of bovine animal species. These species include domestic cattle ("cows"), bison ("buffalo"), yak, and water buffalo. Cow dung is the undigested resid ...
or feed. Moderate trampling may break down
leaf litter Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. This detritus or dead organic material and its constituent ...
and create scattered areas of bare soil which would encourage
bryophyte The Bryophyta s.l. are a proposed taxonomic division containing three groups of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses. Bryophyta s.s. consists of the mosses only. They are characteristically limited in ...
s and some
invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...
s. Drains should not interfere with
flush Flush may refer to: Places * Flush, Kansas, a community in the United States Architecture, construction and manufacturing * Flush cut, a type of cut made with a French flush-cut saw or diagonal pliers * Flush deck, in naval architecture * Flu ...
es and
spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...
s, nor should they cause any drying-out of land. At this particular site there is necessary incoming water from an adjacent
quarry A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to reduce their envi ...
, and that should not be withheld, diverted or obstructed. The calcareous meadow area requires more maintenance than the wood and fen. To prevent build-up of rank grasses, dead vegetation and scrub, light annual grazing and trampling by cattle is recommended. The aim is to "keep a relatively open sward without causing excessive poaching" and a varied habitat, including perhaps a controlled amount of scrub. Pesticides,
herbicide Herbicides (, ), also commonly known as weedkillers, are substances used to control undesired plants, also known as weeds.EPA. February 201Pesticides Industry. Sales and Usage 2006 and 2007: Market Estimates. Summary in press releasMain page fo ...
s and fertiliser are strongly discouraged.
Rabbit Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae (which also contains the hares) of the order Lagomorpha (which also contains the pikas). ''Oryctolagus cuniculus'' includes the European rabbit speci ...
damage Damage is any change in a thing, often a physical object, that degrades it away from its initial state. It can broadly be defined as "changes introduced into a system that adversely affect its current or future performance".Farrar, C.R., Sohn, H., ...
is a problem on this site, and should be controlled where possible.


Development and risk assessment

The site was assessed by
Natural England Natural England is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. It is responsible for ensuring that England's natural environment, including its land, flora and fauna, ...
in May and August 2012. The "
broadleaved A broad-leaved, broad-leaf, or broadleaf tree is any tree within the diverse botanical group of angiosperms that has flat leaves and produces seeds inside of fruits. It is one of two general types of trees, the other being a conifer, a tree with n ...
, mixed and
yew Yew is a common name given to various species of trees. It is most prominently given to any of various coniferous trees and shrubs in the genus ''Taxus'': * European yew or common yew (''Taxus baccata'') * Pacific yew or western yew (''Taxus br ...
woodland (
lowland Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland. Definitions Upland and lowland are portions of ...
)" area was judged to be in favourable condition, having "good ground
flora Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. E ...
and
regeneration Regeneration may refer to: Science and technology * Regeneration (biology), the ability to recreate lost or damaged cells, tissues, organs and limbs * Regeneration (ecology), the ability of ecosystems to regenerate biomass, using photosynthesis ...
." The lowland
fen A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetlands along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. T ...
,
marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...
and
swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...
area was judged "unfavourable and recovering," although no details were given. Regarding future mining of limestone between 2025 and 2030, Gebdykes Quarry applied for a extension of the quarry across agricultural land. The potential effect on Mar Field Fen SSSI was considered in relation to that. North Yorkshire County Council confirmed that Mar Field Fen SSSI would be considered in any future local request for planning permission that might affect the site. North Yorkshire County Council's Minerals and Waste Joint Plan 2016–2030 took Mar Field Fen SSSI into consideration regarding possible effects of all potential local requirements for agricultural and commercial exploitation of land in the area.
Yorkshire Water Yorkshire Water is a water supply and treatment utility company servicing West Yorkshire, South Yorkshire, the East Riding of Yorkshire, part of North Lincolnshire, most of North Yorkshire and part of Derbyshire, in England. The company has its ...
's
drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D.  Jiang, A.  Khan, W.  Pokam Mba, D.  Rosenfeld, J. Tierney, an ...
plan for 2019 considered the potential permanent effect of
water extraction Water extraction (or water withdrawal) is the process of taking water from any source, either temporarily or permanently, for flood control or to obtain water for, for example, irrigation. The extracted water could also be used as drinking wate ...
on Mar Field Fen SSSI in the case of future drought and found it to be moderate and adverse.


See also

Other SSSIs in the
Ripon Ripon () is a cathedral city in the Borough of Harrogate, North Yorkshire, England. The city is located at the confluence of two tributaries of the River Ure, the Laver and Skell. Historically part of the West Riding of Yorkshire, the city ...
and
Harrogate Harrogate ( ) is a spa town and the administrative centre of the Borough of Harrogate in North Yorkshire, England. Historic counties of England, Historically in the West Riding of Yorkshire, the town is a tourist destination and its visitor at ...
region are: Bishop Monkton Ings,
Brimham Rocks Brimham Rocks, once known as Brimham Crags, is a 183.9-hectare (454-acre) biological Site of Special Scientific Interest (SSSI) and Geological Conservation Review (GCR) site, 8 miles (13 km) north-west of Harrogate, North Yorkshire, Engla ...
, Cow Myers,
Farnham Mires Farnham Mires is a Site of Special Scientific Interest, or SSSI, to the east of the village of Farnham, North Yorkshire, England. It consists of a spring-fed marshy fen or mire with reeds and sedge, and drier calcareous grassland containing a d ...
,
Hack Fall Wood Hack Fall Wood, otherwise known as Hackfall, is a Site of Special Scientific Interest, or SSSI, of , lying north-east of the village of Grewelthorpe, North Yorkshire, England. During the 18th century it was landscaped in the picturesque style ...
, Hay-a-Park,
Quarry Moor Quarry Moor is a Site of Special Scientific Interest, or SSSI, at the south edge of Ripon, North Yorkshire, England, and adjacent to the A61 road. It contains an outcrop of Magnesian Limestone, exposed by former quarrying. 255 million years ago ...
, and Ripon Parks.


Notes


References


External links

* * {{Commons category-inline, Marfield Wetlands nature reserve Sites of Special Scientific Interest in North Yorkshire Sites of Special Scientific Interest notified in 1988