干旱地区农业研究Issue(4)：224-230,7.
基于能值理论的北方农牧交错带种植业可持续性分析--以准格尔旗为例
Analysis on sustainability of farming system in farming-pastoral ecotone of northern China based on emergy theory--- A case study in Zhunger County
摘要
Abstract
The theory and methods of emergy were adopted to evaluate the impact and contribution of environmental resources to farming system in Zhunger County based on NPP ,so as to reveal the material basis ,operating efficiency and development direction of farming system .The study showed :(1) Environmental resources ,especially renewable re-sources were the main driving factors of farming system productivity in Zhunger County .Optimizing the emergy input structure and improving the utilization and transformation efficiency of environmental resources would be the strategic ori-entation to improve farming system productivity in Zhunger County .(2) The sustainable scale and yield of farming system in Zhunger County depended mainly on natural capital and ecosystem services that were provided by environmental re-sources .The best way to maintain the sustainable scale of farming system in Zhunger County would be promoting agro-forestry systems including woody fruits and woody grain and oil crops ,accelerating the pace of ecological construction , and thus enhancing the capacity of natural capital and ecological services supplied by environmental resources .(3) The key development direction of farming system in Zhunger County could be implementing the strategy of farming and stock-breeding promoting mutually ,improving the coupling degree and overall productivity of farming-stockbreeding system , particularly supporting the development of animal husbandry by farming ,and enhancing the additional emergy value of a-gricultural products .关键词
能值理论/种植业系统/可持续性/环境资源/准格尔旗Key words
emergy theory/farming system/sustainability/environmental resource/Zhunger County分类
农业科技引用本文复制引用
孙特生,李波..基于能值理论的北方农牧交错带种植业可持续性分析--以准格尔旗为例[J].干旱地区农业研究,2013,(4):224-230,7.基金项目
国家自然科学基金（40871135）；西北师范大学青年教师科研能力提升计划项目 （）
