摘要
[目的]分析伊宁市铁厂沟地区多种植被的水土保持效果,为保护伊犁河谷的生态环境及减少水土流失导致的经济损失提供参考植被.[方法]通过实地统计法和烘干法,分析以苹果、杏树、榆树、怪柳、合欢树、黑枸杞、榛子、苜蓿、狗牙根、角果黎组合共16个小区的产流量与产沙量及平均侵蚀模数值.[结果]同等覆盖度下不同林木种类中以苹果小区的侵蚀模数最小;草类植被中以85％角果黎的侵蚀模数最小;85％角果黎的水体保持效果优于30％角果黎的水土保持效果.[结论]在同等覆盖度下最适宜伊宁市水土保持效果的植被是苹果.鉴于高密度角果黎的水土保持效果也较好,可采用苹果树与角果黎搭配栽种的方式来保持当地的水土.
Abstract
[Objective] To protect eco-environment in Ili River Valley and reduce economic losses caused by soil erosion,soil and water conservation effects of several types of vegetation in Tiechanggou area,Yining City were analyzed.[Method] By field statistical method and drying method,surface flow,sediment yield and average erosion modulus of 16 plots were analyzed by cultivating apple,apricot tree,elm,Tamarix chinensis,silk tree,black wolfberry,hazelnut,alfalfa,bermuda grass,Ceratocarpus arenarius.[Result] Under the same coverage,the modulus of soil erosion in apple plot was the least;the modulus of erosion by coverage of 85％ Ceratocarpus arenarius was the least;soil and water conservation effect of 85％ Ceratocarpus arenarius was better than 30％ Ceratocarpus arenarius.[Conclusion] Under the same coverage,the most suitable vegetation in Yining is the apple.In view of good conservation effect of high density Ceratocarpus arenariu,collocation planting way of apple tree and Ceratocarpus arenariu is the optimal mode for soil and water conservation in Yining City.
国家科技期刊平台
NSTL
维普
万方数据