阿克苏绿洲农业生态经济系统的能值动态分析研究
Analysis on Energy Dynamic State of Oasis Agriculture Eco-economic System in Aksu Region
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摘要: 目的对新疆阿克苏绿洲农业生态经济系统2002~2007年的能值投入产出、能值产出率、环境负载率与能值可持续发展指标等进行系统分析.方法应用能值理论分析方法.结果该绿洲农业生态经济系统能值总投入、能值总产出均呈逐年增加趋势,2007比2002年能值总投入增加了50.7;,并以不可更新工业辅助能为主;能值总产出增加160.13;,其中以种植业和林果业产出增长较快;种植业结构从以粮食为主转变为以经济作物为主;能值产出率维持在较低水平,历年来均为0.05;环境负载率逐年增大,2007年达到8.32,是全国平均水平的2.97倍,可持续发展能值指标总体呈下降趋势.结论该绿洲环境压力较大,应该保护和开发可更新环境资源,合理利用不可更新资源,使系统处于可持续发展态势.Abstract: ObjectiveThe aim of the study was to analyze the energy input,energy output,environmental load rate and index of sustainable development of the oasis agriculture eco-economic system in Aksu region.Methodby the use of energy theory method from 2002 to 2007.ResultThe result showed that the total energy input,total energy output wre increased year by year.The total energy input in 2007 was increased by 50.7;,compared with that in 2002.The total energy output was increased by 160.13;,in which the output of farm porduction and forestry and fruit growing was faster increased.The energy output of farm production was kept in lower level about 0.05;The environmental load rate was incresaed year by year,which reached 8.32 in 2007,which was 2.97 times as average level of the whole China.The energy index of sustainable development was decreased.ConclusionTherefore,the new environmental resources should be proteced and developed to keep the agricultural eco-economic system in the sustainable developing state.
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