辽西地区水土流失生态风险评价  

Assessment of Soil Erosion Ecological Risk in Western Liaoning Region

作　　者：孟博文 郝可心 任城帅 陈云逸 Meng Bowen;Hao Kexin;Ren Chengshuai;Chen Yunyi(Liaoning Provincial Water Conservancy and Hydropower Survey and Design Research Institute Co.,Ltd.,Liaoning,Shenyang 10006,China)

机构地区：[1]辽宁省水利水电勘测设计研究院有限责任公司,辽宁沈阳110006

出　　处：《山西水土保持科技》2025年第1期22-27,共6页Soil and Water Conservation Science and Technology in Shanxi

摘　　要：水土流失生态风险评价能够为水土保持评价、水土流失治理等提供理论依据,降低生态风险。使用GIS等技术将风险评价、生态服务价值与水土流失有机结合,形成区域水土流失生态风险评价模型。利用水土流失危害力指数结合潜在生态损失指数形成的水土流失生态风险评价模型能够良好体现水土流失生态风险时空分布;2013—2023年辽西地区水土流失微度风险占比达到61.47%,近10年该区水土流失生态风险逐渐降低;朝阳市为辽西地区生态风险较高区域,但水土流失生态风险在近10年间得到很大程度的缓解,南部地区葫芦岛市水土流失生态风险有逐渐扩大的趋势。研究初步探究了水土流失生态风险评价方法及过程,成功构建了基于GIS的水土流失生态风险评价模型,为辽西地区的水土流失生态风险评价提供了科学依据。The evaluation of soil erosion ecological risk may provide a theoretical basis for the evaluation and management in soil and water conservation.The utilization of Geographic Information System(GIS)and other remote sensing techniques enables quantitative synthesis of risk evaluation,ecological service value,and soil erosion to establish a regional soil erosion ecological risk evaluation model.The model(combined the soil erosion hazard index in conjunction with the potential ecological loss index)has been demonstrated to effectively reflect the spatial and temporal distribution of soil erosion ecological risk,revealing that the proportion of slight risk of soil erosion reached 61.47%in 2013—2023 in the western Liaoning region,and the ecological risk of soil erosion has gradually decreased in this region over the past decade.Notably,Chaoyang City remained a higher ecological risk area in western Liaoning region,but it has been greatly alleviated in the past 10 years.While the ecological risk of soil erosion has gradually expanded for Huludao City in the southern Liaoning region.This study initiated an investigation into the methodology and process of evaluating soil erosion ecological risk,and established the soil erosion ecological risk evaluation model based on GIS.It provides scientific basis for the evaluation of soil erosion ecological risk in the western Liaoning region.

关 键 词：土壤侵蚀 生态服务价值 风险评价模型 辽西地区 

分 类 号：S157[农业科学—土壤学]