白银市刘家窑沙区生态防护体系建设研究

A research on establishment of eco-farming shelterbelt system in Liujiayao desert area，Baiyin City

摘要: 在腾格里沙漠东南缘白银市刘家窑沙区实施防治荒漠化的生态防护体系建设，封沙育草，固定流沙，种草养畜，培肥地力，建设经济生态型防护林网使沙区土壤水稳性团粒结构增加17％左右，土壤粘粒物质增加23％～37％，土壤持水能力提高3％，土壤有机质增加25.4％左右。封育3年的天然植被盖度达50.27％，生态复合型枸杞经济林网节约水资源38％以上，经济效益显著。

Abstract: Based on closing and fixing moving sand，planting grass and breeding livestock，fertilizing soil，an eco-economic shelterbelt system has been established to combat desertifieation in Liujiayao desert area．The stable granule structure under hydrokiensis increases by 17％。as well as the clay granule 23％～37％．The holding water capacity enhances to 3％ and organic matter increases by 25．4％．The natural vegetation coverage has reached 50．27％ after closing for 3 years．The water resource saVes 38％ in complex eco-link of wolfberry．and a better economic effect has got．