Long-term agroecosystem experiments: assessing agricultural sustainability and global change

Long-term agroecosystem experiments can be defined as large-scale field experiments more than 20 years old that study crop production, nutrient cycling, and environmental impacts of agriculture. They provide a resource for evaluating biological, biogeochemical, and environmental dimensions of agricu...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1998-10, Vol.282 (5390), p.893-896
Main Authors: Rasmussen, P.E. (USDA, ARS, Columbia Plateau Conservation Research Center, Pendleton, OR.), Goulding, K.W.T, Brown, J.R, Grace, P.R, Janzen, H.H, Korschens, M
Format: Article
Language:English
Subjects:
Agricultural Production
Agricultural soils
Agriculture
Agroecosystems
Agrology
Agronomy. Soil science and plant productions
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
CAMBIO CLIMATICO
CHANGEMENT CLIMATIQUE
Chemistry
CLIMATIC CHANGE
Crops
Crops (Plants)
Data Interpretation
Developed Nations
DURABILITE
Ecological sustainability
ECOSISTEMA
ECOSYSTEME
ECOSYSTEMS
Environmental aspects
ENVIRONMENTAL IMPACT
Experiments
FARMLAND
Field study
Fundamental and applied biological sciences. Psychology
General agroecology
General agroecology. Agricultural and farming systems. Agricultural development. Rural area planning. Landscaping
General agronomy. Plant production
Generalities. Agricultural and farming systems. Agricultural development
IMPACT SUR L'ENVIRONNEMENT
IMPACTO AMBIENTAL
International Organizations
Management Systems
Organic Chemistry
Organic farming
Review
Soil conservation
Soil pollution
Soil quality
Soil Science
SOSTENIBILIDAD
SUSTAINABILITY
Sustainable agriculture
Synecology
TERRE AGRICOLE
Terrestrial ecosystems
TIERRAS AGRICOLAS
Tillage
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Description
Summary:Long-term agroecosystem experiments can be defined as large-scale field experiments more than 20 years old that study crop production, nutrient cycling, and environmental impacts of agriculture. They provide a resource for evaluating biological, biogeochemical, and environmental dimensions of agricultural sustainability; for predicting future global changes; and for validating model competence and performance. A systematic assessment is needed to determine the merits of all known experiments and to identify any that may exist in tropical and subtropical environments. The establishment of an international network to coordinate data collection and link sites would facilitate more precise prediction of agroecosystem sustainability and future global change
ISSN:0036-8075
1095-9203
DOI:10.1126/science.282.5390.893