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Titolo:
Land cover changes as a result of environmental restrictions on nitrate leaching in dairy farming
Autore:
Groeneveld, R; Bouwman, L; Kruitwagen, S; van Ierland, E;
Indirizzi:
Univ Wageningen & Res Ctr, Dept Econ & Management, Environm Econ Grp, NL-6700 EW Wageningen, Netherlands Univ Wageningen & Res Ctr Wageningen Netherlands NL-6700 EW Netherlands Natl Inst Publ Hlth & Environm, NL-3720 BA Bilthoven, Netherlands Natl Inst Publ Hlth & Environm Bilthoven Netherlands NL-3720 BA herlands
Titolo Testata:
ENVIRONMENTAL MODELING & ASSESSMENT
fascicolo: 2, volume: 6, anno: 2001,
pagine: 101 - 109
SICI:
1420-2026(2001)6:2<101:LCCAAR>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLLUTION; POLICIES;
Keywords:
spatial economics; land use and land cover; reduction costs; nitrate leaching; dairy farming; groundwater depth;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Groeneveld, R Univ Wageningen & Res Ctr, Dept Econ & Management, Environm Econ Grp, POB 8130, NL-6700 EW Wageningen, Netherlands Univ Wageningen & Res Ctr POB 8130 Wageningen Netherlands NL-6700 EW
Citazione:
R. Groeneveld et al., "Land cover changes as a result of environmental restrictions on nitrate leaching in dairy farming", ENV MOD ASS, 6(2), 2001, pp. 101-109

Abstract

Nitrate leaching forms an important environmental problem because it causes pollution of groundwater and surface water, and adds to already problematic eutrophication. This study analyses the impact of reductions in nitrate leaching on land cover decisions of dairy farms, of which the activities make an important contribution to nitrate teaching. As the level of nitrate leaching depends on groundwater depth as well as on the supply of nitrogen, spatial variation in groundwater levels will cause a spatial variation in land cover under restrictions on nitrate leaching. A non-linear partial optimisation model for the economic and ecological aspects of the problem were used to show how land cover and dairy farms' financial balances change whennitrate losses are reduced. The model is spatially explicit, and describesnitrate leakage and yields of maize and grass as a function of groundwaterdepth, including the effects of various grazing systems. The model analyses the decisions of a risk neutral agent who minimises costs under the following constraints: (i) production, feed requirements and mass balances for fodder (ii) constraints for nitrate leaching. Economic costs are attributed to increased costs of fodder and processing of manure when nitrate restrictions are tightened. An important result of the study is the variation in compliance costs and land cover for maize and grass production brought about by spatial variation in groundwater depth. While the effects are negligiblefor some shallow groundwater classes, it is extremely difficult in other classes - if not impossible - to obtain the EU standard of maximum admissible losses of 34 kg N ha(-1) at low costs. The study shows an important reduction in land cover by maize.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/04/20 alle ore 15:41:49