混物填充沙袋沙障对流动沙丘植被恢复的影响  

Effect of Mixture-filling Sandbag Sand Barrier on Vegetation Restoration in Mobile Sand Dunes

作　　者：袁立敏[1] 张文军[1] 闫德仁[1] 张光 王熠清[1] 张智慧 

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]内蒙古清水河县林业局,内蒙古清水河011600 [3]兴安盟科右前旗人大常委会办公室,内蒙古兴安盟137400

出　　处：《内蒙古林业科技》2015年第1期6-9,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家林业局"948"引进项目(2012-4-72)资助

摘　　要：通过对传统沙袋沙障外包装及内部填充材料改进,形成一种新型的混物填充沙袋沙障,能够提高流动沙丘植被建植及快速恢复能力。为了解该新型沙袋沙障对流动沙丘植被恢复的影响,以普通沙袋沙障及未做任何处理的流动沙丘为对照,对混物填充沙袋沙障顶部、距离沙障不同位置及防护区内植物生长情况进行了对比研究。结果表明:混物沙袋沙障顶部植物种类数量高于普通沙袋沙障,且植物高度、数量、覆盖度及生物量分别是普通沙袋沙障的1.77倍、6.06倍、6.67倍和2.27倍;混物沙袋沙障迎风侧和背风侧均有人工播种植物及天然植物生长,且随着与混物沙袋沙障距离的增大,植物长势变差。混物沙袋沙障和普通沙袋沙障均能够显著提高流动沙丘的植物种类及植物长势(p<0.001),但是混物沙袋沙障提高程度较大,植物高度、密度、盖度及生物分别是普通沙袋沙障的1.39倍、2.09倍、1.57倍和1.50倍。Through improving the external packing and internal filling material of traditional sandbag sand barrier,a new type of mixture-filling sandbag sand barrier was produced,which could raise the ability of vegetation planting and fast restoration of mobile sand dunes. To understand effects of this new type sandbag sand barrier on vegetation restoration in mobile dunes,the common sandbag sand barrier and mobile sand dunes were taken as controls,the plants growth situation of the top of barrier,different distance location away from barrier,the area protected by barrier were comparative studied. The results show that the number of plant species on the top of mixture-filling sandbag sand barrier was more than the common ones,and plant height,number,coverage and biomass of this new sand barrier were 1. 77 times,6. 06 times,6. 06 times and 2. 27 times of common sandbag sand barriers. There were artificial plants in both windward and leeward side,and with the distance away from the mixture-filling sandbag barrier increases,the plants grow worse. The number of plant species and plant growth in mobile dunes were improved both by mixture-filling sandbag sand barrier and common sandbag sand barrier（ p〈 0. 001）,but mixture-filling sandbag sand barrier was better than common sandbag sand barrier,and plant height,number,coverage and biomass of this new sand barrier protection zone were 1. 39 times,2. 09 times,1. 57 times and 1. 50 times of common sandbag sand barriers.

关 键 词：流动沙丘 混物沙袋沙障 植被恢复 玉米秸秆 库布齐沙漠 

分 类 号：S775[农业科学—森林工程]