首页|GEP核算视角下高寒地区天峻县土壤保持功能现状研究

GEP核算视角下高寒地区天峻县土壤保持功能现状研究

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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。28×105 t/a,土壤保持总价值为 20。48×105 元。其中,土壤保持肥力价值 11。77×104 元;减少泥沙淤积价值 189。94×104 元;减少土地废弃的经济价值 30。63×103 元。
Research on the Current Status of Soil Conservation Function in Tianjun County,High Cold Region from the Perspective of GEP Accounting
Soil conservation function is one of the important regulatory service function for ecosystems.Quantitative e-valuation 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 e-rosion 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 Tian-jun County from large to small is:forest land,grassland,water and water facility land,construction land,wetland,and oth-er land;(3)The total amount of soil conservation in Tianjun County in 2023 is 3.28×105 t/a,and the total value of soil conservation is 20.48×105 yuan.Among them,the value of soil fertility preservation is 11.77×104 yuan;Reduce the value of sediment accumulation by 189.94×104 yuan;The economic value of reducing land abandonment is 30.63×103 yuan.

GEPRUSLE modelSoil conservation servicesSoil conservation value

蒋梦梦、杨海镇

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青海民族大学 政治与公共管理学院,青海 西宁 810007

青海省土地资源勘测与规划重点实验室,青海 西宁 810007

青藏高原生态环境研究所,青海 西宁 810007

GEP RUSLE模型 土壤保持服务 土壤保持价值

2025

黑龙江生态工程职业学院学报

黑龙江生态工程职业学院学报

影响因子:0.274
ISSN:
年,卷(期):2025.38(1)