石羊河流域人工固沙林树种选择及结构优化配置
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中图分类号：S727.23 文献标识码：Adoi：10.13601/j.issn.1005—5215.2025.06.005
Tree Species Selection and Structure Optimization Configuration of Artificial Sand-fixation Forest in Shiyang River Basin
Li Delu1 ，Liu Yonggang²，Zhao Qianyun1 ，Xu Li²，Gao Songtao1 （1.Gansu Key Laboratoryof Desertification Combating，Gansu Desert Control Research Institute，Lanzhou 730o7o，China; 2.Wuwei Shiyanghe Forestry General Farm，Wuwei ，China）
AbstractToscientificallyselectsuitabletreespeciesandtheiroptimal structuralconfigurations forartificialsand-fixation forests in the Shiyang River Basin，sand-fixation forests with diferent treespecies wereestablishedonmobilesand dunes in Minqin County after laying straw checkerboards.By measuring indicators suchas survival rate，seedling retention rate， height，crown width，andsoil moisturecontent，the growth statusof windbreak and sand-fixationforests with differenttree species configurations wasanalyzed.The results showed that the suitable tre species foraforestationon mobile sand dunes were Haloxylonammodendron，Atraphaxis bracteata ，Calligonum mongolicum，and Artemisia sphaerocephala.For interdune areas（abandoned farmlands），the suitable tree species included Tamarix chinensis，Nitraria tangutorum，Haloxylon ammodendron，Caragana korshinski ，and Lycium ruthenicum.The suitable mixed forest types for mobile sand dunes were Haloxylon ammodendron+Calligonum mongolicum and Haloxylon ammodendron + Atraphaxisbracteata.For interduneareas，the suitabletree speciesconfigurations included pure forestsof Caragana korshinskii，Haloxylonammodendron，and Nitraria tangutorum ，as well as the mixed forest of Haloxylon ammodendron + Caragana korshinskii . Sand-fixation forests with suitable tree species configurations hadhighaforestation survival rates and good seedling growth.They are suitable sand-fixation forest types for popularization and application in the desert areas of the lower reaches of the Shiyang River Basin and similar regions.
Key WordsShiyang River Basin;windbreak and sand-fixation forest;tree species selection;structural optimization
我国北方荒漠区介于 36∘44′-49∘57′N，73∘ 26′-123∘55′E ，覆盖面积约为243万 km2[1] 。（剩余6171字）
