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Basic principles of agroecology and sustainable agriculture


, : Basic principles of agroecology and sustainable agriculture. Journal of Agricultural & Environmental Ethics 6(1): 1-19

In the final analysis, sustainable agriculture must derive from applied ecology, especially the principle of the regulation of the abundance and distribution of species (and, secondarily, their activities) in space and time. Interspecific competition in natural ecosystems has its counterparts in agriculture, designed to divert greater amounts of energy, nutrients, and water into crops. Whereas natural ecosystems select for a diversity of species in communities, recent agriculture has minimized diversity in favour of vulnerable monocultures. Such systems show intrinsically less stability and resilience to perturbations. Some kinds of crop rotation resemble ecological succession in that one crop prepares the land for successive crop production. Such rotations enhance soil organic processes such as decomposition and material cycling, build a nutrient capital to sustain later crop growth, and reduce the intensity of pest buildup. Species in natural communities occur at discrete points along the r-K continuum of reproductive maturity. Clearing forested land for agriculture, rotational burning practices, and replacing perennial grassland communities by cereal monocultures moves the agricultural community towards the r extreme. Plant breeders select for varieties which yield at an earlier age and lower plant biomass, effectively moving a variety towards the r type. Features of more natural landscapes, such as hedgerows, may act as physical and biological adjuncts to agricultural production. They should exist as networks in agricultural lands to be most effective. Soil is of major importance in agroecosystems, and maintaining, deliberately, its vitality and resilience to agricultural perturbations is the very basis of sustainable land use.

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Accession: 002308422

DOI: 10.1007/bf01965612

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Other references

Abstracts., 1992: Les techniques de controle des passes a poissons. Bulletin Francais de la Peche et de la Pisciculture. 3e et 4e trimestre; 326-327: 151-164

Amyot G.; Raynaud P., 1969: Clinical consideration of fetal distress. Union Medicale du Canada 98(10): 1692-1696

Pilote, L.; Bourassa, M., G.; Bacon, C.; Bost, J.; Detre, K.; Mark, D., B.; Pitt, B.; Reeder, G.; Rogers, W., J.; Ryan, T.; Schwartz, L.; Smith, H.; Whitlow, P.; Wiens, R.; Hlatky, M., A., 1995: Better functional status in American than Canadian patients with heart disease: An effect of medical care?. Objectives. This study compared functional status in Americans and Canadians with and without prior symptoms of heart disease to separate the effects of medical care from nonmedical factors. Background. Coronary angiography and revascularization a...

Scheuch, K.; Pietruschka, W.D.; Gruber, G.; Landgraf, R.; Langer, H.; Sandring, L.; Peters, H.J.; Köhler, H.; Häcker, R., 1985: Somatic changes in acute psychiatric stress. Zeitschrift für Arztliche Fortbildung 79(23): 1007-1010

Reeck, U.H.; Egerer, G.; Theilmann, L.; Conradt, C.; Seitz, H.K.; Otto, G., 1995: Liver transplantation for alcoholic cirrhosis A 8-year follow up study. Hepatology 22(4 PART 2): 479A

Sato Y.; Miyazawa T.; Washino M.; Tsukamoto S.; Karasawa S.; Sudo T., 1979: An experiment on drinking using a breath alcohol meter. A breath alcohol meter which has a thermocatalytic sensor was used to measure the amount of alcohol consumed by a human. The sensor is electrically pressurized so that the alcohol concentration can be detected as a change in the electric current....

RamachandraRao, S.P.; Matthias, M.A.; Kokoy-Mondrogon, C.; Aghania, E.; Park, C.; Kong, C.; Ishaya, M.; Madrigal, A.; Horng, J.; Khoshaba, R.; Bounkhoun, A.; Basilico, F.; D.P.lma, A.; Agresta, A.Maria.; Awdishu, L.; Naviaux, R.K.; Vinetz, J.M.; Mauri, P., 2015: Correction: Proteomic analysis of urine exosomes reveals renal tubule response to leptospiral colonization in experimentally infected rats. Plos Neglected Tropical Diseases 9(4): E0003718-E0003718

Ruxton, B. P., 1988: Towards a weathering model of Mount Lamington ash, Papua New Guinea. The Mount Lamington ash halo was studied at six sites both close to and distant from the volcano. Negligible alumina occurs in the seepage waters from the ash and so is assumed constant during weathering. In andesitic ashes, weathering to allophan...

Zhang, J.S.; Kaltenbach, J.A.; Wang, J.; Bronchti, G., 2003: Changes in [14C]-2-deoxyglucose uptake in the auditory pathway of hamsters previously exposed to intense sound. The current study evaluated changes in [14C]-2-deoxyglucose (2-DG) uptake along the auditory pathways of hamsters that were exposed unilaterally to intense sound. The measurement of the acoustically evoked auditory brainstem responses indicated th...

Serdyukovskaya G.N., 1982: Childhood hygiene as the most important link in preventive medicine. Standards in the projection of future types of school and preschool institutions (new methods of heating, illumination, ventilation systems, building materials and other factors) in urban and rural populations of different climatic regions were di...