水土保持通报2011，Vol.31Issue(5)：80-84,195,6.
沙袋沙障对沙丘植被特征的影响
Effects of Sandbag Barrier on Characteristics of Vegetation on Sand Dunes
摘要
Abstract
In order to obtain the difference of vegetation growth on sand dunes under the influences of paved sandbag barrier and straw barrier,vegetation species number,average vegetation density,height and vegetation coverage of sand dunes in Ulan Buh desert were investigated for three continuous years by quadrat investigation method on dunes protected by sandbag and straw barriers and bare dunes.The specifications,setting location and setting time of the barriers were studied at the same time.The study results show that the longer setting time of the sandbag and straw sand barrier led to better vegetation growth status.With the increase of the setting time,vegetation species number and average height of the two sand barriers remained similar,but their average vegetation density and coverage increased;the average vegetation density reached above 35%,and the vegetation coverage achieved 36.8% and 33.0%,respectively.The positive effects of sand barriers on vegetation increased with the sizes of the barriers： 3 m×3 m was best,followed by 2 m×2 m and 1 m×1 m.The setting locations of sand barriers also mattered regarding the vegetation growth： the best setting location was bottom lee slope,followed by windward slope,middle lee slope location,and top slope.The two types of sand barriers studied showed no difference of the effects on the vegetation growth according to the analysis of variance（p=0.14）,however,the two sand barriers were significantly better than the control（p0.005）.关键词
乌兰布和沙漠/沙袋沙障/麦草沙障/植被盖度Key words
Ulan Buh desert/sandbag sand barrier/straw sand barrier/vegetation coverage分类
农业科技引用本文复制引用
袁立敏,高永,李谦,党晓宏,王春颖,张延旭..沙袋沙障对沙丘植被特征的影响[J].水土保持通报,2011,31(5):80-84,195,6.基金项目
内蒙古创新基金项目“高大沙丘治理技术” （）
公益性行业科研专项“生境胁迫立地植被恢复与重建技术研究” （）
国家自然科学基金项目“沙柳沙障腐蚀过程及其抗蚀机理研究” （）
