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机构地区:[1]杭州师范大学理学院遥感与地球科学研究院,中国浙江杭州311121 [2]浙江省城市湿地与区域变化研究重点实验室,中国浙江杭州311121 [3]中国科学院地理科学与资源研究所,中国北京100101 [4]中国科学院研究生院,中国北京100049
出 处:《经济地理》2012年第4期136-142,共7页Economic Geography
基 金:国家重点基础研究发展计划(973计划)项目(2009CB421307);国家自然科学基金项目(41101039;40971282)
摘 要:通过能值和GIS方法的耦合分析,以伊犁地区为例,探讨了温带干旱区绿洲农业生态经济系统可持续性的时空演化特征与总体趋势,提出了相应的调控措施。研究结论如下:①1989—2008年,伊犁地区农业生态经济系统的能值总投入和总产出均呈持续增长趋势。②目前伊犁地区农业生态经济系统仍处于可持续发展的状态,但亦呈现出恶化的趋势。③研究区在农业系统发展水平方面,大致呈现出"东北—西南"梯度格局;在系统可持续发展方面,大致呈现出"南高北低"的空间格局。④在今后的农业发展进程中,伊犁地区应通过农业内部结构的优化、农业传统生产方式的变革等手段,促进农业系统的结构功能优化和可持续发展,防止生态环境的恶化。Through the coupling analysis of emergy method and GIS technique, this paper take the Yili prefecture as an example, has discussed the spatial-temporal characteristics and the overall tendency of oasis agricultural eco-economic system. Following conclusions were obtained:①during 1989-2008, the total emergy input and output of the oasis agricultural eco-economic system in Yili prefecture have a trend of sustainable development. ② According to the sustainability analysis with the emergy indices, the agricultural eco-economic systems in Yili prefecture are still at a sustainable status at present. However, the emergy-based sustainability index (13SI) has a trend of decreasing with fluctuations. ③In the study area, the development level of agricultural eco-economic system present a gradient pattern of "northeast- southwest"; the system sustainable development of agricultural eco-economic system present a spatial pattern of higher in the south and lower in the north; the system status present a spatial pattern of "one axis and two wings". ④ In order to realize the sustainable development of agricultural system and to prevent the deterioration of environment, the Yili prefecture should adopt the following measures in the future, such as optimizing the interior structures of agriculture, improving the supporting system of agricultural production and reforming the traditional mode of agricultural production.
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