RS36720 – The Agri-Environment

JOHN WARREN, GRAHAM HARRIS AND PETER DENNIS

Programme Semester I 2011/2012

Monday 9.00 - 10.50 in W19 and Fridays 10.00 - 12.00 in W19

Practicals some Friday afternoons

  Week

Date

Time

Subject

Staff

0

30/9/11

10.00 -12.00

Module Introduction

JW

1

3/10/11

7/10/11

9.00 - 10.50

10.00 -12.00

Setting the context

Environmental impacts I

JW

JW

2

10/10/11

14/10/11

9.00 - 10.50

10.00 -12.00

Environmental impacts II

Biological and chemical control

JW

JW

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

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

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

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

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

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

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

10

5/12/11

9/12/11

9.00 - 10.50

10.00 -12.00

Scale and landscape ecology

Environmental Impact modelling

JW

JW

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

 

Useful Web-pages:

www.soilassociation.org

NFU       

www.ccw.gov.uk                

www.defra.gov.uk      

www.foe.co.uk            

www.greenpeace.org.uk           

www.fwag.org.uk

www.ifoam.org

 

The Agri-Environment Sample Exam Questions

 In the exam you will be expected to answer three questions from six in three hours!

 

  1. Discuss the on farm sustainable use of genetic resources

  1. Why is scale important in understanding the environmental impacts of agriculture

  1. describe the principles of an agri-environment scheme plan and discuss the strengths and weakness of this approach

  1. Compare and contrast the environmental damage caused by biological and chemical control

  1. How has the history of agri-environment schemes effected their implementation / how they are regarded by the farming community

  1. 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. 

  1.  Analyse the impact of grassland management on grassland biodiversity.

  1. Discuss the strategies for farm waste management.

  1. Discuss the importance of habitat connectivity in agricultural landscapes.

 

A Few with Model Answer Outlines

 

  1. 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%

  

  1. 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%

 

  1. 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

Agri-environment scheme

Agricultural grant schemes, under which farmers receive payments for environmental enhancements 

Annual weed

Pest plant species with yearly (or less) life cycles

Arable land

Land cultivated on an annual basis to grow crops for human consumption

Artificial fertilisers

Chemical fertilisers derived from inorganic sources by industrial processing

Beetle bank  

Grass strip planted in or at the edge of an arable field to encourage beetles and other invertebrate generalist predators  

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  

CAP  

Common Agricultural Policy  

CCW  

Countryside Council for Wales, Government conservation agency for Wales  

Cereals  

Annual grass species cultivated for their seeds, e.g. wheat, oats barley etc.  

Common grazing

Area of usually unimproved hill ground over which several farmers have rights to graze

Conservation headland  

Outer strip of arable land cultivated in a way to encourage, uncompetitive weeds, non-pest invertebrates and birds  

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  

Corncrake  

Rare species of ground nesting birds, whose decline has been linked to silage making  

DEFRA  

Department of the Environment, Food and Rural Affairs (Government department)  

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  

EN

English Nature, Government conservation agency for England  

ESA  

Environmentally Sensitive Area, early agri-environment scheme, restricted to target areas. Now defunct in Wales and Scotland  

Field margin

The edge of a field, usually considered as the grass strip at the edge of an arable field  

Flood meadow  

Term frequently misused. A traditional form of encouraging spring grass growth for lambs, by flooding meadows in late winter  

Fodder  

Any plant material grown to be feed to livestock

FRCA

Farming and Rural Conservation Agency. Was the non-privatized rump of ADAS that dealt with conservation rather than production. 

Gorse (Whins in Scotland)

Shrubby yellow flowered legume species of the genus Ulex. May be invasive, may be of conservation value  

Grouse & grouse moor

Game bird of the uplands, moor managed by cyclical burning and grazing to encourage heather growth for grouse  

Habitat  

Place where an organism lives  

Heather & heather moor / moorland  

Dwarf shrubby species of the genus Calluna or Erica may be most abundant species in upland unimproved land  

Hedge & hedgero

Field boundary typically comprising of a row of thorny short trees such as hawthorn and blackthorn

Herbicide  

Chemical applied to control pest plant species  

Hill farming  

Upland agriculture typically associated with extensive grazing of sheep and beef. With the trend being for increased sheep and decreased cattle numbers  

Hill fence or hill dyke

The field boundary which separates hill ground from inbye land

Hill ground or outbye

Large expanse of rough grazing, which is open ranched

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 and or grazing management

Inbye

Lower enclosed ground (usually improved) surrounding the farm buildings. (Northern / Scottish term) opposite to hill ground or outbye

Insecticide

Chemical applied to control pest invertebrates

Land drain & drainage  

Pipe buried in agricultural land to improve the drainage  

Ley

Typically relatively short term improved grass or grass / clover pasture  

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  

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  

Manure & FYM  

Farm Yard Manure, solid waste products of stock, including faeces, urine and bedding, used as organic fertiliser  

Meadow  

Grass or grass / herb vegetation, usually cut for hay or silage in summer and grazed at other times

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

Mowing & topping  

Cutting grass field typically for winter feed or to remove rank stems or unwanted species  

Muirburn

Management of heather moorland by burning (mostly Scottish term)

Natural regeneration

Process of vegetation succession typically involving the invasion of scrub and trees  

Pasture

Grass or grass / herb vegetation, usually seasonally grazed  

Pollard  

Method of harvesting trees for young stems by cutting to head height on a rotational basis. Thus preventing stock from grazing the regrowth  

Rhos pasture

Welsh term for wet rushy area of ground

Rough grazing

Unimproved grassy vegetation, dominated by non-agricultural species, frequently found in the uplands  

SAC  

Special Area of Conservation. European designation of legally protected land because of its conservation value

Scrub  

Area of land covered with low growing trees and shrubs, such as gorse, hawthorn or juniper  

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

Set-aside  

Land taken out of arable production, receiving CAP funding to reduce production  

Silage

Method of storing fodder for winter feed, without drying  

Slurry  

Semi-solid animal waste products. Produced during housing stock  

SNH  

Scottish Natural Heritage, Government conservation agency for Scotland  

SSSI

Site of Special Scientific Interest, UK designation of legally protected land because of its conservation or geological value

Spray drift  

Unintentional drift of agrochemical into non-target area  

Stewardship scheme & Countryside stewardship scheme  

Agri-environment schemes in England and Scotland  

Stubble  

Residues of stems and spilt grain following harvesting an arable crop  

Supplementary feeding  

The feeding of extra fodder to stock while grazing fresh pasture  

Tir gofal  

Agri-environment schemes in Wales  

Weeds & weed killers  

Undesirable plant species and the method of their chemical control  

Wetlands  

Area of impeded drainage, often of conservation value. May also be important as flood defence  

Wildflowers  

Within an agricultural context, these typically include perennial species of unimproved grasslands and moorlands plus some annual species of arable fields

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

 

Organic agriculture  

Sustainable agriculture 

Biodynamic agriculture

Permaculture

Integrated Crop Management

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!