紫色土坡地不同种植模式生态经济效益综合评价  

Comprehensive evaluation of eco-economic benefits of different cropping systems in slope-land purple soils

作　　者：徐创军[1] 杨立中[1] 唐家良[2] 杨红薇[1] 白平[1] 吴鹏飞[3] 

机构地区：[1]西南交通大学环境科学与工程学院,成都610031 [2]中国科学院成都山地灾害与环境研究所,成都610041 [3]西南民族大学生命科学与技术学院,成都610041

出　　处：《中国生态农业学报》2008年第1期196-199,共4页Chinese Journal of Eco-Agriculture

基　　金：中国科学院成都山地灾害与环境研究所青年种子基金(2006-2008);铁道部科技研究开发计划项目(2005Z003)资助

摘　　要：在小区试验基础上对紫色土丘陵区不同农业种植模式生长季植被覆盖度、土壤养分、水土流失及作物产量等进行了观测,并采用灰色关联度分析法对各模式生态经济效益进行了综合评价。评价结果表明,在评价指标不同权重比例下,紫苏+连翘间作模式、山药+辣椒间作模式生态经济综合效益均较高,玉米/红苕的传统种植模式综合效益最低。结果说明:该区域传统种植模式不利于生态环境保护,应调整种植结构,寻找符合当地生态经济持续发展的优化种植模式。因此,我国紫色土丘陵区坡地适宜发展和推广以牧草和中草药为间作植物的复合种植模式,此举可推动区域农村经济与环境协调发展。On the bases of observation of vegetation coverage and soil nutrient,integrated eco-economic benefits of soil loss,soil water and nutrient, and crop yield ,were evaluated under different cropping systems in the purple soil areas using the gray relation analysis method. The results show that Dioscorea opposita ＋ Capsicum frutescens and Perilla frutescens var. Crispa ＋ Forsythia suspensa cropping systems have higher scores under different weight index evaluations,while traditional cropping systems,Zea mays/ Ipomoea batatas has the lowest scores. It is concluded that the best strategy for sustainable and profitable agricultural cropping system in purple soil hills is through the combining grazing and medicinal herb cultivation. This can promote sustainable development of the economy and the environment of rural regions with purple soils.

关 键 词：紫色土丘陵区 种植模式 生态经济效益 灰色关联度 综合评价 

分 类 号：S343.3[农业科学—作物栽培与耕作技术] F323.22[农业科学—农艺学]