不同覆盖度沙棘对林下草本植被的修复效果研究  

Study on the Recovery Effects of Different Coverage Hippophae rhamnoides Linn.on Undergrowth Vegetation

作　　者：段亚萍[1] 王洁[1] 郭建英[2] 王利兵[3] 

机构地区：[1]交通运输部科学研究院,北京100029 [2]水利部牧区水利科学研究所,内蒙古呼和浩特010020 [3]中国林业科学研究院林业研究所,北京100091

出　　处：《安徽农业科学》2012年第12期7213-7215,共3页Journal of Anhui Agricultural Sciences

基　　金："十一五"国家科技支撑计划项目(2006BD47B06)

摘　　要：[目的]探讨不同覆盖度沙棘对林下草本植被的修复效果。[方法]经过对林下植被的盖度、生物量、物种多样性的分析研究内蒙古自治区鄂尔多斯地区不同覆盖度沙棘人工林对林下植被的影响。[结果]沙棘林覆盖度达10%以后,林下草本植被多样性指数变化平稳;当沙棘林地覆盖度为20%～25%时,林下植被盖度与生物量达最大值。[结论]研究区沙棘林的覆盖度应该以15%～25%为宜。[Objective] The study aimed to discuss the recovery effects of different coverage Hippophae rhamnoides Linn.on undergrowth vegetation.[Method] By analyzing understory vegetation cover,biomass and species diversity,the effects of different coverage H.rhamnoides Linn.in Erdos Area of Inner Mongolia on undergrowth vegetation were studied.[Result] The variation of undergrowth vegetation diversity index is stable when the coverage of H.rhamnoides Linn.reaches 10%;the undergrowth vegetation cover and biomass were up to the maximum when the coverage of H.rhamnoides Linn.reaches 20%-25%.[Conclusion] The coverage degree of H.rhamnoides Linn.in study area should be 15%-25%.

关 键 词：沙棘 物种多样性 林下植被 

分 类 号：S424[农业科学—植物保护]