摘要
为了给新形势下退耕还林工程的实施提供科学的理论依据,以贵州省安顺市普定县为研究区域,借助生态系统服务和交易的估价权衡模型(InVEST)测度了普定县1990年、2000年、2010年、2017年的土壤保持、产水量、碳储存和生境质量4项服务。结果表明:(1)产水量、碳储量、土壤保持和生境质量服务在3个时段生态系统服务变化指数(ESCI)的结果各不相同,如持平和倍增。增益及损失范围在空间分布上不相同,同种生态系统服务在不同的时间段上分布也不相同。(2)4种主导生态系统服务的分布格局也显示出显著的空间差别:土壤保持主导服务主要分布在山地林地地区;产水量主导服务主要分布在山地林地、建设用地及裸地;碳储量主导服务主要分布在林区;生境质量主导服务分布在水域、林地、草地和耕地。(3)普定县土壤保持与碳储存服务、土壤保持与生境质量服务、碳储存与生境质量都存在明显的协同关系;土壤保持与产水量存在较好的协同关系。(4)普定县4类及3类生态系统服务热点区主要分布在林地和草地地区,且随着退耕还林(草)政策的全面开展,4类及3类热点区面积逐年增加;0类和1类服务热点区主要分布在普定县的建设用地、裸地及耕地地区。
In order to provide scientific theoretical basis for the implementation of the project of returning farmland to forest under the new situation,Puding County of Anshun City,Guizhou Province was taken as the research area,four services such as soil conservation,water yield,carbon storage and habitat quality in 1990,2000,2010 and 2017 in Puding County were measured by using the value trade-off model of ecosystem services and transactions(InVEST).The results showed that:(1)the ecosystem service change indexes(ESCI)of water yield,carbon storage,soil conservation and habitat quality service in the three periods were different,some indexes remained stable,and the others doubled.The gain and loss ranges were not the same in terms of spatial distribution,and the same kinds of ecosystem services had not the same distributions in different time periods;(2)The distribution patterns of the four dominant ecosystem services also presented the significant spatial heterogeneity;the leading service of water yield mainly distributed in mountainous forestland,construction land and bare land;carbon storage services mainly distributed in forest areas;habitat quality leading services distributed in water body,forestland,grassland and cultivated land;(3)there were obvious synergistic relationships between soil conservation and carbon storage service,soil conservation and habitat quality service,carbon storage and habitat quality in Puding County;there was a good synergistic relationship between soil conservation and water yield;(4)multiple ecosystem service supply of type 4 and type 3 of hot spots in Puding County mainly distributed in the forest and grassland areas,and with the comprehensive development of the policy of returning farmland to forest(grass),type 4 and type 4 of hot spots area increased year by year;Type 0 and type 1 hot spots mainly distributed in the construction land and cultivated land areas of Puding County.
作者
高敏
王勇
高洁
王家录
毛泳
GAO Min;WANG Yong;GAO Jie;WANG Jialu;MAO Yong(College of Geographical Sciences,Southwest University,Chongqing 400715,China;Key Laboratory of Ecological Environment of Three Gorges Reservoir Area,Ministry of Education,Chongqing 400715,China;School of Resources and Environmental Engineering,Anshun University,Anshun,Guizhou 561000,China)
出处
《水土保持研究》
CSCD
北大核心
2020年第2期276-283,共8页
Research of Soil and Water Conservation
基金
重庆市发展和改革委员会学术委员会研究课题(4080491)
贵州省科技合作计划项目(黔科合LH字[2015]7702号,黔科合LH字[2017]7059号)
贵州省科技计划院士工作站项目(黔科合平台人才[2016]5602)
重庆市社会科学规划项目(2018PY60).
作者简介
第一作者:高敏(1993—),女,山西太原人,硕士研究生,研究方向为地表环境与应用地理。E-mail:294453719@qq.com;通信作者:王勇(1975—),男,山西吕梁人,副教授,博士,主要从事地表环境与应用地理研究。E-mail:wy-ong@swu.edu.cn
