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[1]HU Bing-hui,LIAO Yun-cheng,WANG Ke-qin,et al.The Comparison and Evolvement of Agroecosystem Structure in Representative Counties of the Farming-Pastoral Ecotones in North China[J].Research of Soil and Water Conservation,2011,18(02):35-39,43.

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The Comparison and Evolvement of Agroecosystem Structure in Representative Counties of the Farming-Pastoral Ecotones in North China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 02 Page number: 35-39,43 Column: Public date: 2011-04-20

Title:: The Comparison and Evolvement of Agroecosystem Structure in Representative Counties of the Farming-Pastoral Ecotones in North China

Author(s):: HU Bing-hui¹, LIAO Yun-cheng², WANG Ke-qin¹, CHEN Qi-bo¹; 1. Department of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224, China;
2. College of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China

Keywords:: industry structure; agroecosystem; farming-pastoral ecotone of north China

CLC:: S181

DOI:: -

Abstract:: Based on the characteristic of farming-pastoral ecotones in north China, for exactly describing rationality and showing dynamic evolvement characteristic of agroecosystem industry structure, in near 31 year time scale, Yuyang district, farming-dominant zone, and Wushen, grazing-dominant zone, in farming-pastoral ecotones in north China, are served as contradistinctive study sites, system component priority, system configuration priority and system stability index are applied as study model, then the agroecosystem structures of this two places are analyzed and estimated synthetically. The results show that farming is the main industry in agroecosystem of farming-dominant zone and its component priority always declines, the component priorities of forestry are small in two places, grazing is an industry with powerful potential in farming-dominant zone and an industry with national economy mainstay, the component priorities of fishery is the smallest and it has no contribution to system, the agroecosystem structure is superior in farming-dominant zone, but the agroecosystem stability is more preminent. According to the study result, constructive attitudes towards farming, forestry, grazing and fishery development are brought forward in farming-dominant zone and grazing-dominant zone of farming-pastoral ecotones in north China, it is looking forward to providing academic gist and scientific reference for industry model optimization of agroecosystem and sustainable development of farming and grazing in local place and farming-pastoral ecotones in north China.

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