安宁河流域主要种植模式生态经济效益分析

实地调查了安宁河中游的西昌市西乡乡一年两熟种植模式,并从中选择出水稻——小麦、水稻——洋葱、水稻——蚕豆、玉米——油菜、玉米——大蒜五种典型模式进行生态经济效益的综合分析。分析结果表明,水稻——洋葱的纯收入最高(19740.50元/hm~2),玉米——大蒜次之(9124.00元/hm~2),二者的生态经济效益较为理想,尤以水稻——洋葱最为突出,但它们的用工量却明显高于另三种种植模式。

An Ecological and Economic Benefit Analysis of the Major Growing Patterns in Anning River Basin

We surveyed on the spot the two-ripes-a-year growing patterns in Xixiang Village of Xichang on the middle reaches of Arming River, and selected five typical patterns, namely the paddy-onion, the paddy-horsebean, the maize-rape, and the maize-garlic to be analyzed comprehensively in terms of their economic and ecological benefit. As the result shows that the net income from paddy-onion pattern ranks the highest (19740.50yuan/bm2),and that from maize-garlic pattern ranks next. The economic and ecological benefits of beth types are comparatively desirable, and the paddy-onion type takes prominence particularly.Nonetheless, the amount of labor consumed in these two patterns is distinctively larger than that used in the other three patterns respectively.