新疆草地生态系统土壤保持服务评估与风险管理

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中图分类号：S154.1 文献标识码：A 文章编号：1007-0435（2025）07-2333-12

doi：10.11733/j.issn.1007-0435.2025.07.027

引用格式：，等．新疆草地生态系统土壤保持服务评估与风险管理[J].草地学报，2025，33（7）：2333一 2344 TAWen-yan，LIUYa-li，ZHANGJing，etal.Soil Conservation Service AssessmentandRisk Managementof Grass landEcosystem in Xinjiang[J].Acta Agrestia Sinica，2O25，33（7） ：2333-2344

Soil Conservation Service Assessment and Risk Management of Grassland Ecosystem in Xinjiang

TA Wen-yan，LIU Ya-li， ZHANG Jing，LI Yao-ming，MAIMAITIYIMING Gu-linuer， JI Bao-ming* （School ofGrassand Science，Beijing Forestry University，Beijing lOoo83，China）

Abstract：Xinjiang isanimportant ecological barrer area and thecore region of the"BeltandRoad Initiative"in China.The soil conservation service of grassland is crucial for preventing soil erosion，water loss and desertification.Based on data of grassland types，precipitation，soil texture，etc.，the Revised Universal Soil Loss Equation（RUSLE）was used to evaluate the spatial and temporal distribution pattern of soil conservation of Xinjiang grassland from l980 to 2O2Oand to identify its hotspots.The influencing factors were analyzed by the Geodetector method，and the risk levels were analyzed by supply and demand risk system. Our results showed that：The soil conservation service of grassands showed an increasing trend from 198O to 2O2O，with alpine meadows， mountain meadows and temperate steppe having a stronger soil conservation capacity. The hot spots were mainly concentrated in northern Xinjiang，while the cold spots are in the Junggar Basin and southern Xinjiang.The spatial heterogeneity ofsoil conservation service is mainly afected by natural factors such as slope and precipitation. The risk level of soil conservation supply and demand in most areas was safe，and the vulnerable areas were mainly distributed in temperate desert grassands in southern and northern Xinjiang.Based on these results，the management measures to maintain and enhance the soil conservation service of grassland to reduce soil erosion and desertification and to build the ecological security barrier in the northwest were discussed.

Key words：Xinjiang grassand ecosystem service;Soil conservation service;Soil erosion;Supply and demand risk

新疆草地面积占全国草地面积的 14.58% ，约占全疆面积的 1/3 ，其资源丰富，类型多样，具有重要的生态功能和社会、经济、文化价值1，是我国西北地区的生态安全屏障，也是中亚荒漠带向我国东部地区蔓延的重要防御带。（剩余17201字）