GEP核算视角下高寒地区天峻县土壤保持功能现状研究  

Research on the Current Status of Soil Conservation Function in Tianjun County,High Cold Region from the Perspective of GEP Accounting

作　　者：蒋梦梦 杨海镇 JIANG Meng-meng;YANG Hai-zhen(Qinghai University for Nationalities,Xining 810007,China;Key Laboratory of Land Resources Survey and Planning,Xining 810007,China;Institute of Ecological Environment on the Qinghai Tibet Plateau,Xining 810007,China)

机构地区：[1]青海民族大学政治与公共管理学院,青海西宁810007 [2]青海省土地资源勘测与规划重点实验室,青海西宁810007 [3]青藏高原生态环境研究所,青海西宁810007

出　　处：《黑龙江生态工程职业学院学报》2025年第1期1-5,共5页Journal of Heilongjiang Vocational Institute of Ecological Engineering

基　　金：青海省国际合作项目“高寒生态脆弱区自然生态空间用途管制研究:以天峻县为例”(2019-HZ-802);青海民族大学人文社会科学研究规划项目“高寒地区自然资源领域生态产品价值实现路径与优化研究:以天峻县为例”(24GH06);青海民族大学创新创业项目“GEP核算视角下高寒地区天峻县土壤保持功能现状研究”(39M2024003)。

摘　　要：土壤保持功能是生态系统重要的调节服务功能之一,定量评估天峻县土壤保持功能的空间分布特征,可以为该区域水土流失防治和生态产品价值核算等工作提供相应的智力支持。基于通用的水土流失方程(RUSLE模型),从物质量与价值量两个角度,对天峻县土壤保持功能进行评估和研究。结果表明:(1)天峻县土壤保持量空间分布具有明显的空间异质性,总体呈现出西北—东南高、中部低的空间分布格局;(2)天峻县不同土地利用类型的单位面积土壤保持量的排序从大到小依次为:林地、草地、水域及水域设施用地、建设用地、湿地、其他土地;(3)2023年天峻县土壤保持总量为3.28×10^(5)t/a,土壤保持总价值为20.48×10^(5)元。其中,土壤保持肥力价值11.77×10^(4)元;减少泥沙淤积价值189.94×10^(4)元;减少土地废弃的经济价值30.63×103元。Soil conservation function is one of the important regulatory service function for ecosystems.Quantitative evaluation of the spatial distribution characteristics of soil conservation function in Tianjun County can provide corresponding intellectual support for soil erosion prevention and ecological product value accounting in the region.Evaluate and study the soil conservation function of Tianjun County from the perspectives of material quality and value based on the universal soil erosion equation(RUSLE model).The results are as follows:(1)There is significant spatial heterogeneity in the spatial distribution of soil conservation in Tianjun County,showing an overall spatial distribution pattern of high in the northwest southeast and low in the central region;(2)The order of soil conservation per unit area for different land use types in Tianjun County from large to small is:forest land,grassland,water and water facility land,construction land,wetland,and other land;(3)The total amount of soil conservation in Tianjun County in 2023 is 3.28×10^(5)t/a,and the total value of soil conservation is 20.48×10^(5)yuan.Among them,the value of soil fertility preservation is 11.77×10^(4)yuan;Reduce the value of sediment accumulation by 189.94×10^(4)yuan;The economic value of reducing land abandonment is 30.63×103 yuan.

关 键 词：GEP RUSLE模型 土壤保持服务 土壤保持价值 

分 类 号：C939[经济管理—管理学]