【摘要】 对元谋干热河谷区4种旱坡地生态农业模式的水土保持效益进行了系统的研究。结果表明:与对照模式“罗望子+裸地”相比,建立的4种模式均体现了良好的水土保持效果,其中,“罗望子+木豆+柱花草”模式截持降雨,增加地表盖度,改善土壤物理性状,提高蓄水保水能力,防治水土流失效果最佳,其余3种模式均有明显的生态效益。根据需要,若重新对套入模式的主栽灌草层作物进行科学合理的搭配,重建后的优化复合生态农业模式,无论是生态效益,还是经济和社会效益都将得到充分的体现。更多还原

【Abstract】 The paper systematically studied the benefits of soil and water conservation on 4 different models of compound eco-agriculture on dry slope land.The results showed that their effects of soil and water conservation were better than the compare model which was Tamarindus indica +bare ground.Among them,the model,Tamarindus indica + pigeonpea + Stylosanthes gracilis,had the best effects on intercepting rain,increasing cover degree of the earth’s surface,improving soil physical characteristics,increasing the performance of impoundment and controlling water retention and soil erosion.Other 3 models had the obvious ecological benefits.If the plants which was some different shrub and grass are disposed reasonably again,the optional compound eco-agriculture models by rebuild will produce good ecological,economic and social benefit.更多还原