基于清洁发展机制的县南沟流域商品型生态农业系统优化  

Optimization of Ecological Agricultural System with Commodity Based on Clean Development Mechanism

作　　者：顾文[1,2] 王继军[1,3] 张雯佳 

机构地区：[1]中国科学院水利部水土保持研究所,陕西杨凌712100 [2]烟台市水利建筑勘察设计院,山东烟台264000 [3]西北农林科技大学,陕西杨凌712100

出　　处：《水土保持通报》2014年第6期146-152,161,共8页Bulletin of Soil and Water Conservation

基　　金：中国清洁发展机制基金项目"黄土高原退耕区农户低碳生产模式与政策研究"(2012027);科技部"十二五"国家科技支撑计划项目(2011BAD31B05)

摘　　要：针对县南沟流域因资源利用率低导致的农业产业与农业资源系统运行相悖,商品型生态农业系统链网结构不完整等问题,在清洁发展机制（CDM）理念下,根据可能发展路径,设置了商品型生态农业发展的3个阶段5种情景并进行了系统优化。结果表明,商品型生态农业系统优化后,经济效益得到了不同程度提高,土地利用结构发生了重要变化。阶段Ⅰ（情景A）、阶段Ⅱ（情景B1,B2）、阶段Ⅲ（情景C1,C2）的经济效益比现实状况分别提高了34.4%,53.0%~55.2%,72.8%~73.7%;基于CDM下的农业经济系统与农业生态系统优化耦合阶段的农林牧土地利用结构为1∶12.6∶4.4,林地比重较阶段Ⅰ、阶段Ⅱ提高了;商品型生态农业系统发展过程表现出＂现状发展态势→农业生态经济系统链网构建阶段→农业经济系统与农业生态系统优化耦合阶段＂的发展趋势。The agricultural resources of Xiannangou watershed were not used efficiently, the system of agri- cultural practices grow inconsistently with agricultural resources, and the chain network structure of ecologi- cal agricultural system with commodity（EASC） was incomplete. In order to solve these problems, Three phases and five scenarios of the possible development path of ecological agriculture with commodity（EAC） was set on the principle of clean development mechanism（CDM）, and further efforts were made to optimize the EASC. The results showed that the economic benefits of each phase had been improved and the land use structure had also been significantly changed after the optimized of EASC. The economic benefits of phase I to Ⅲ had been improved by 34.4%, 53.0~55.2%, and 72.8~73.7%, respectively comparing with the ac- tual state. On the principle of CDM, the coupling of agricultural economic system and agricultural ecosys- tem, a better land use structure（agriculture ： forestry ： animal husbandry = 1 ： 12.6 ： 4.4） was produced, implying that the proportion of forestry increased compared to phase Ⅰ and phase Ⅱ. The development pro- gress of EASC with the development trend of the actual state→the modified chain network construction of EASC→the optimization of agricultural economic system and agricultural ecosystem coupling has its histori- cal inevitability.

关 键 词：商品型生态农业 线性规划 清洁发展机制 情景设置 县南沟流域 

分 类 号：F327[经济管理—产业经济]