文档介绍：(1):148〜151 Guizhou Agricultural Sciences ［文叢编号］1001-3601(2011)01-0042 0148-04 猪一沼一粮、菜（果）循环农业模式能值分析 李tress and sustainable development were evaluated to provide the scientific basis for popularization of the circular agricultural model・ The results showed that the natural resource utilization rate increased from 0 to 2. 02 percent compared with single pig raising, the nt*t energy output rate and sustainable development indexes were 18. 60 and 25. 12• 245. 0% and 249. 37% higher than those of single pig raising respectively• and the environmental loading rate was 0. 74. 22. 10% lower than that of single pig raising. The wpig-methane- grain・ vegetable (fruit)" circular chain can reduce environmental stress and improve the systemic sustainable development index effectively・ Key words: circular agriculture; energy analysis； sustainable development； Guizhou (1):148〜151 Guizhou Agricultural Sciences (1):148〜151 Guizhou Agricultural Sciences 生态循环农业以滅応化、 则，，何导物质 不断循环再生利用•是遵循门然生态系统的物质循 环和能垠流动规律，利用自然资源和环境容址•将资 源高效利用和废弃物循环再生、利用融为一体的一 种农业生产模式能值分析理论是以自然价值为 基础•将系统中各种生态流和经济流转换为能值•对 口然环境生产与人类经济活动进行统一评价•定就 分析其结构、功能勺生态经济效益2"。国内关于生 态农业能量分析的研究主要集中在沿海及部分发达 区域而近年来•随君我国东部地区畜禽养殖基 地向西部转移•贵州生猪养殖企业、规模化小区不断 涌现•生猪养殖业已成为贵州农村经济发展中的取 要产业。随着养殖业的不断发展•环境污染问题也 H益突出⑻。在贵州养殖业发展背景下，选择全省 具有代衣性的养殖场•运用能值理论系统地剖析贵 州猪-沼-粮、菜（果）循环农业模式的能值投入与 产出，