生物基可降解沙袋网格沙障治沙效应分析

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中图分类号：S775 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.04.008

Analysis of Sand Control Effect of Bio-based Degradable Sandbag Grid Sand Barrier

Ren Yuyan1 ，He Jinjun1，Wu Le1，Han Yiliang1，Liu Kun²，Wang Faming1，Lu Lina² （1.Ordos Forestry and Grassland Science Institute，Ordos O17ooo，China; 2.Ordos Forestry and Grassland Development Center，Ordos O17o1o，China）

AbstractInorder tounderstandthecomprehensive sand control benefitsof thenewsandcontrol materialbio-based de gradable fibersandbag sand barier，the underlying surface changes afterthe sand barrer was laid，the near-surface windproof effect，the vegetation restoration in the barier area and the layingcost were comprehensivelyanalyzed.The results showedas thefollowing four aspects.1）Thelayingofbio-based degradable fiber sandbag sand barriercould increase the roughness of the underlying surface. In the barrier areas with specifications of 1. 0m× 1. 0m，1. 5m× 1. 5m and 2 .0m×2.0m ，respectively，the surface roughness was negatively correlated with the size of the sand barrier，that was，with the increaseof thesizeof thesand barrer，thesurface roughness showedadownward trend.2）The layingof biobased degradable fibersandbag sandbarriercould efectivelyreducethenear-surface wind sped.Withtheincreaseof thesand barier specifications，the efectof reducing thesurface wind speed was weakened.The sandbarrier specifications with decreasing values from large to small were 1.0m×1.0m，1.5m×1.5m，2.0m×2.0m ，There was no significant difference between 1.0m×1.0m and 1.5m×1.5m ，while the difference between 2.0m×2.0m and 1. 0m× 1. 0m ， 1.5m×1.5m was significant.3） The laying of bio-based degradable fiber sandbag sand barier hada good role in promoting vegetation restoration.4）Thecostof bio-based degradablefibersandbag material was 2-3 times higher than thatof traditional Salix cheilophila，wheat straw，rice straw and other sand control materials，but the laying eficiency was 2-4 （20 times that of other materials，which could save labor costs by 40%-75% .Under the trend of decreasing material cost in the future andthe advantages oflight weight，nvironmental protectionand simple laying process，thenewsand controlma

terial hashighpromotionvalue.

Key wordsbio-based degradable fiber;sandbags;sand barrier;sand control effect;cost analysis

土地沙漠化是影响人类生存和发展的重大生态问题，荒漠化防治成为全球攻克的共同课题。（剩余4904字）