摘要
应用能值分析法,以景电灌区沙漠绿洲边缘的一个典型村落——大咀子村为研究对象,对其能值产投结构和指标进行了计算。该村落净能值产出率为3.10,能值投入率为17.38,环境承载力为0.82,能值可持续性指数为3.77,自系统能值反馈率0.39。将研究区的能值指标与江苏省、海南省、甘肃省进行了对比分析,结果表明,系统经引黄提灌后取得了良好的经济效益与生态效益,增强了该区可持续发展的潜力。该区以高投能,种养结合为特点,属干旱区的典型生产模式。针对该区目前存在的一些问题提出了相关对策建议。
The theory of energy analysis was applied to select a typical representative village--Dazuizi Village located in the desert oasis borderland as a research object. The composition of energy inputted and output- ted, energy indices were calculated. Net energy yield ratio was 3.1; energy investment ratio, 17.38; envi- ronmental loading ratio, 0.82; energy sustainable index, 3.77; and self-system feedback ratio, 0.39. Com- pared with Jiangsu, Hannan, and Gansu Province, results showed that the system which is irrigated from the Yellow River achieved favorable ecological and economic benefits and strengthened the potentiality of sus- tainable development. Production feature was a lot of energy inputted and the combination between planting and livestock breeding. The production mode was typical in arid area, but some problems were still existed. Accordingly, countermeasures and suggestions were presented.
出处
《水土保持通报》
CSCD
北大核心
2009年第4期196-199,共4页
Bulletin of Soil and Water Conservation
基金
中国/全球环境基金甘肃项目"干旱生态系统土地退化防治--干旱区绿洲综合生态系统管理耦合技术研究"
关键词
人工绿洲生态经济系统
能值分析
景电灌区
manmade oasis eco-economic system
energy evaluation
Jingtai electrical irrigation region
