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RS36720 – The Agri-Environment |
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JOHN WARREN, GRAHAM HARRIS AND PETER DENNIS |
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Programme Semester I 2011/2012 Monday 9.00 - 10.50 in W19 and Fridays 10.00 - 12.00 in W19 Practicals some Friday afternoons |
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Week |
Date |
Time |
Subject |
Staff |
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0 |
30/9/11 |
10.00 -12.00 |
Module Introduction |
JW |
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1 |
3/10/11 7/10/11 |
9.00 - 10.50 10.00 -12.00 |
Setting the context Environmental impacts I |
JW JW |
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2 |
10/10/11 14/10/11 |
9.00 - 10.50 10.00 -12.00 |
Environmental impacts II Biological and chemical control |
JW JW |
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3 |
17/10/11 21/10/11 21/10/11 |
9.00 - 10.50 10.00 -12.00 pm |
CAP and agri-environment schemes Conservation audits Agri-environment visit * |
JW JW JW/GPH |
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4 |
24/10/11 28/10/11 |
9.00 - 10.50 10.00 -12.00 |
Management plans & Economics of agri-environment schemes Habitat management - pasture ecology |
JW PD |
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5 |
31/10/11 4/11/11 4/11/11 |
9.00 - 10.50 am pm |
Habitat restoration - wetlands and water bodies Assignment visit I and hand-out * Assignment visit II and hand-out * |
GPH JW/GPH JW/GPH |
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6 |
7/11/11 11/11/11 |
9.00 - 10.50 10.00 -12.00 |
On farm habitat creation & Farming with Tir Gofal Connectivity and wildlife corridors |
GPH GPH |
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7 |
14/11/11 18/11/11 18/11/11 |
9.00 - 10.50 10.00 -12.00 pm |
Crop genetic resource conservation and utilization Biodiversity in UK agro-ecosystems Waste management visit and Workshop |
JW PD JW/GPH |
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8 |
21/11/11 25/11/11 |
9.00 - 10.50 10.00 -12.00 |
Nutrient flows and farm waste management Soil ecology - impacts on the soil |
GPH GPH |
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9 |
28/10/11 1/12/11 2/12/11 |
9.00 - 10.50 9.00 10.00 -12.00 |
Agriculture and farm
birds
Assignment hand-in Energy use |
PD
GH |
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10 |
5/12/11 9/12/11 |
9.00 - 10.50 10.00 -12.00 |
Scale and landscape ecology Environmental Impact modelling |
JW JW |
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11 |
12/12/11 |
9.00 - 10.50 |
Module review and exam briefing |
ALL |
RS Modules
The activities marked * are essential components of the coursework assessment for this module. Failure to attend is likely to result in you being unable to carry out some or all of the coursework and in the award of a mark of zero for that component. You may also have an ‘N’ indicator attached to that assessment (see your student handbook). If you have extenuating circumstances which may prevent you from attending you should discuss these with the coursework tutor/module coordinator prior to the date of the activity
Module Aims
This module is designed to develop the students’ ability to scientifically analyse the complex ecological interactions that occur between agricultural systems and their environment in the UK. The impact of intensive, extensive and organic agriculture on the environment in terms of: biodiversity, genetic diversity, habitat quality, habitat fragmentation, pollution and sustainable resource use are examined. A review of historical development of European environmental policy and agri-environment schemes will set the context for understanding current on-farm conservation practice. The practical ability to produce a whole-farm conservation plan will be developed by critical review of existing plans and the integration of ecological science with practical agricultural knowledge.
Module Assessment
1. Whole farm conservation plan - 50%
Assignment Hand-out 4/11/11 Assignment Hand-in 9.00am 1/12/11
2. Three hour exam - 50%
Assignment brief - you will be provide with a whole farm conservation plan. You are expected to take the role of an Agri-environment Scheme Officer, you should produce a report on the plan which should include:
A summary statement - is the plan acceptable or not, briefly evidenced (20%)
Your report should consider:
The quality of the auditing (10%)
The appropriateness of the management prescriptions
(agriculturally, economically and ecologically) (40%)
The practicality of the timescales (10%)
What amendments you would suggest to improve the plan (20%)
LINK TO REAL AGRI-ENVIRONMENT SCHEME PLAN
Learning outcomes
On completion of this module, students should be able
to:
1.
Identify the potential environmental impacts resulting from various
agricultural practices
2.
Critically
review the evidence used to compare the environmental impacts of different
agricultural systems
3.
Recognise
the importance of scale (time and distance) in evaluating environmental
impacts
4.
Formulate
a model to assess the possible environmental impacts of a new agricultural
practice
5.
Develop
a farm waste management plan
6. Critically evaluate a whole farm conservation plan
Reading
list
Warren,J.M, Lawson, C. and Belcher, K. (2008) The Agri-Environment. Cambridge University Press.
(1995) Effects of organic farming on the landscape. Report to Countryside Commission. Entec, Warwick
(1992) Green fields - grey future. EC agricultural policy at the crossroads. Greenpeace, Amsterdam.
Andrews J and Rebane M. (1994) Farming and wildlife.. RSPB
Arden-Clarke C. (1998) The environmental effects of conventional and organic/biological farming systems. I. Impacts on the soil.. Research Report RR-16. Political Ecology Research Group; Oxford
Arden-Clarke C. (1998) The environmental effects of conventional and organic/biological farming systems. II. Impacts on the crop ecosystem, wildlife and its habitats. Research Report RR-17. Political Ecology Research Group; Oxford.
Boatman N (Ed). (1994) Field margins: integrating agriculture and conservation. BCPC
Chamberlin D.E. et al (2000) Changes in the abundance of farmland birds in relation to the timing of agricultural intensification in England and Wales. Journal of Applied Ecology, 37: 771-788
Crofts, A. and R. Jefferson (1999). The Lowland Grassland Management Handbook. 2nd edition. Peterborough, English Nature/ The Wildlife Trusts: pp. 508.
Debrinski D.M. and Holt R.D. (2000) A survey and overview of habitat fragmentation experiments. Conservation Biology, 14: 342-355.
Kleijn, D., Baquero, R.A., Clough, Y., Diaz, M., De Esteban, J., Fernandez, F., Gabriel, D., Herzog, F., Holzschuh, A., Johl, R., Knop, E., Kruess, A., Marshall, E.J.P., Steffan-Dewenter, I., Tscharntke, T., Verhulst, J., West, T.M., Yela, J.L. (2006) Mixed biodiversity benefits of agri-environment schemes in five European countries. Ecology Letters 9: 243-254.
Kleijn, D. & Sutherland, W.J. (2003) How effective are European agri-environment schemes in conserving and promoting biodiversity? Journal of Applied Ecology 40: 947–969.
Lampkin N H. (1990) Organic farming. Farming Press
Mannion A (2000) Global change and agriculture 1 & 2. University of Reading
Newman E I. (1993) Applied ecology. Blackwell Science
Overden G (1998) Agri-environment schemes and their contribution to the conservation of biodiversity in England. Journal of Applied Ecology, 35: 955-960
Park J R. (1988) Environmental management in agriculture: European perspectives. Belhaven
Pankhurst C et al. (1997) Biological indicators of soil health. CABI
Parker D M. (1995) Habitat creation - a critical guide. English
Nature
(1996) Sustainable use of soil. Royal Commission on Environmental
Pollution. HMSO
Shrubb, M. (2003). Birds, scythes and combines. A history of birds and agricultural change. Cambridge, Cambridge University Press.
Sutherland W and Hill D A (Eds). (1995) Managing habitats for conservation. CUP
Teddington P (2000) Dictionary of ecology and environment. Colins
Unwin R et al. (1995) The effect of organic farming systems on aspects of the environment. A review for MAFF. ADAS, London.
Winter M (2000) Practical delivery of farm conservation management in England. English Nature
In the exam you will be expected to answer three questions from six in three hours!
Discuss the on farm sustainable use of genetic resources
Why is scale important in understanding the environmental impacts of agriculture
describe the principles of an agri-environment scheme plan and discuss the strengths and weakness of this approach
Compare and contrast the environmental damage caused by biological and chemical control
How has the history of agri-environment schemes effected their implementation / how they are regarded by the farming community
Evaluate the effects of current agricultural practices on soils.
7. What are the potential impacts of agricultural practices on waterbodies and watercourses,
and how can these impacts be reduced?
8. Discuss nutrient cycling in different types of
agroecosystem in the U.K.
Analyse the impact of grassland management on grassland biodiversity.
Discuss the strategies for farm waste management.
Discuss the importance of habitat connectivity in agricultural landscapes.
A Few with Model Answer Outlines
Discuss the pros and cons of agri-environment scheme audits being defined in terms of land-use rather than ecologically
Provide examples of audits classifications being based in land-use terms eg species rich grasslands versus rough grazing 10%
Discuss the logic of different payments for potentially identical habitats 20%
Outline the concept of payments being made for reductions in income and the history of such payments 30%
Discuss the easy of policing land-use definitions compared to ecological ones 30%
Conclusion summarise the above arguments 10%
Discuss the advantages and disadvantages of using models to assess the environmental impacts of a particular agricultural activity
Outline the problems of scale, confounding and time scales in assessing environmental impacts 20%
Describe the process of producing an ecological model 10%
Discuss the advantages of models in terms of lengths of simulations, ability to define management treatments over any landscape 30%
Discuss problems with model verification, sensitivity analysis and robustness testing 30%
Conclusion summarise the above arguments 10%
Outline the different methods that could be used to determine which agri-environment scheme plans should receive funding and discuss their relative merits
Outline the various methods of assigning points to conservation plans based on priority habitats, areas of land entered, proportion of habitats entered, or hybrid systems 20%
Discuss the advantages of each of the different approaches
Eg those favouring small farms
those favouring large farms 20%
those favouring mixed farms 20%
Other approaches 20%
Conclusion covering problems of priority inflation, complexity and transparency 20%
The Agri-Environment - Glossary of Terms
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Agri-environment scheme |
Agricultural grant schemes, under which farmers receive payments for environmental enhancements |
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Annual weed |
Pest plant species with yearly (or less) life cycles |
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Arable land |
Land cultivated on an annual basis to grow crops for human consumption |
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Artificial fertilisers |
Chemical fertilisers derived from inorganic sources by industrial processing |
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Beetle bank |
Grass strip planted in or at the edge of an arable field to
encourage beetles and other invertebrate generalist predators |
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Bracken |
Invasive native species of fern, often problematic on hill
ground, may be toxic to stock and carcinogenic. Its spread had been
associated with a decline in hill cattle |
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CAP |
Common Agricultural Policy |
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CCW |
Countryside Council for Wales, Government conservation
agency for Wales |
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Cereals |
Annual grass species cultivated for their seeds, e.g.
wheat, oats barley etc. |
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Common grazing |
Area of usually unimproved hill ground over which several farmers have rights to graze |
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Conservation headland |
Outer strip of arable land cultivated in a way to
encourage, uncompetitive weeds, non-pest invertebrates and birds |
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Coppice & Coppicing |
Method of harvesting trees for young stems by cutting to
ground level on a rotational basis. Associated with elevated light levels
and thus increased botanical diversity |
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Corncrake |
Rare species of ground nesting birds, whose decline has
been linked to silage making |
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DEFRA |
Department of the Environment, Food and Rural Affairs |
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Dry stone wall & dry stone dyke
& dry stain dyke |
Field boundary constructed of stones without mortar.
Several regional variants of structure and name. Considered important
habitat for many species and of cultural / landscape importance |
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EN |
English Nature, Government conservation agency for England |
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ESA |
Environmentally Sensitive Area, early agri-environment
scheme, restricted to target areas. Now defunct in Wales and Scotland |
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Field margin |
The edge of a field, usually considered as the grass strip
at the edge of an arable field |
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Flood meadow |
Term frequently misused. A traditional form of encouraging
spring grass growth for lambs, by flooding meadows in late winter |
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Fodder |
Any plant material grown to be feed to livestock |
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FRCA |
Farming and Rural Conservation Agency. Was the non-privatized rump of ADAS that dealt with conservation rather than production. |
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Gorse |
Shrubby yellow flowered legume species of the genus Ulex.
May be invasive, may be of conservation value |
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Grouse & grouse moor |
Game bird of the uplands, moor managed by cyclical burning
and grazing to encourage heather growth for grouse |
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Habitat |
Place where an organism lives |
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Heather & heather moor / moorland |
Dwarf shrubby species of the genus Calluna or Erica
may be most abundant species in upland unimproved land |
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Hedge & hedgero |
Field boundary typically comprising of a row of thorny short trees such as hawthorn and blackthorn |
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Herbicide |
Chemical applied to control pest plant species |
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Hill farming |
Upland agriculture typically associated with extensive
grazing of sheep and beef. With the trend being for increased sheep and
decreased cattle numbers |
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Hill fence or hill dyke |
The field boundary which separates hill ground from inbye land |
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Hill ground or outbye |
Large expanse of rough grazing, which is open ranched |
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Improved grassland |
Grassland whose composition has been altered to favour more
productive & palatable species of grass and legumes. This may occur by
reseeded, and or applications of fertiliser and lime |
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Inbye |
Lower enclosed ground (usually improved) surrounding the farm buildings. (Northern / Scottish term) opposite to hill ground or outbye |
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Insecticide |
Chemical applied to control pest invertebrates |
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Land drain & drainage |
Pipe buried in agricultural land to improve the drainage |
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Ley |
Typically relatively short term improved grass or grass /
clover pasture |
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Lowland heath |
Heather
dominated vegetation in the lowlands associated with nutrient poor soils.
May be dry in the east, wet in the west or coastal |
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Machair |
Species rich, low input, grass / arable agricultural system
associated with the sand rich soils of the coastal strip of the western
isles of Scotland |
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Manure & FYM |
Farm Yard Manure, solid waste products of stock, including
faeces, urine and bedding, used as organic fertiliser |
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Meadow |
Grass or grass / herb vegetation, usually cut for hay or silage in summer and grazed at other times |
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Monoculture |
The cultivation of a single species of crop within a field. Does not mean growing the same crop year after year, although this may occur |
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Mowing & topping |
Cutting grass field typically for winter feed or to remove
rank stems or unwanted species |
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Muirburn |
Management of heather moorland by burning (mostly Scottish term) |
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Natural regeneration |
Process of vegetation succession typically involving the
invasion of scrub and trees |
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Pasture |
Grass or grass / herb vegetation, usually seasonally grazed |
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Pollard |
Method of harvesting trees for young stems by cutting to
head height on a rotational basis. Thus preventing stock from grazing the
regrowth |
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Rhos pasture |
Welsh term for wet rushy area of ground |
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Rough grazing |
Unimproved grassy vegetation, dominated by non-agricultural
species, frequently found in the uplands |
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SAC |
Special Area of Conservation. European designation of legally protected land because of its conservation value |
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Scrub |
Area of land covered with low growing trees and shrubs,
such as gorse, hawthorn or juniper |
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Semi-improved grassland |
Grassland that has received some application of fertiliser
or lime, but whose composition is more diverse than just ryegrass and
clover. May also be derived from a reverting improved pasture |
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Set-aside |
Land taken out of arable production, receiving CAP funding
to reduce production |
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Silage |
Method of storing fodder for winter feed, without drying |
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Slurry |
Semi-solid animal waste products. Produced during housing
stock |
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SNH |
Scottish Natural Heritage, Government conservation agency
for Scotland |
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SSSI |
Site of Special Scientific Interest, UK designation of legally protected land because of its conservation or geological value |
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Spray drift |
Unintentional drift of agrochemical into non-target area |
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Stewardship scheme & Countryside
stewardship scheme |
Agri-environment schemes in England and Scotland |
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Stubble |
Residues of stems and spilt grain following harvesting an
arable crop |
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Supplementary feeding |
The feeding of extra fodder to stock while grazing fresh
pasture |
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Tir gofal |
Agri-environment schemes in Wales |
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Weeds & weed killers |
Undesirable plant species and the method of their chemical
control |
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Wetlands |
Area of impeded drainage, often of conservation value. May
also be important as flood defence |
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Wildflowers |
Within an agricultural context, these typically include perennial species of unimproved grasslands and moorlands plus some annual species of arable fields |
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Wildlife corridor |
Linear feature crossing agricultural land such as stream or hedge which is said to encourage the movement of wildlife across open fields |
A few tricky ones
Conventional agriculture plus others
Intensive agriculture
What does DEFRA consider intensive agriculture is?
No definition is given within the regulations and therefore Defra will seek to implement this within the rules of good husbandry and welfare codes of practice. Stocking rates based on livestock units per hectare over the season will be used. Advice should be sought from Defra for particular examples.
So thats clear then!