生态科学2024，Vol.43Issue(2)：151-162,12.DOI:10.14108/j.cnki.1008-8873.2024.02.017
基于"三生用地"的四川丘陵区乡村生态系统服务价值及其供需格局评估
The value and supply-demand pattern of ecosystem services based on the production-living-ecological land classification system in typical hilly areas of Sichuan
摘要
Abstract
The quantitative assessment of Ecosystem Services Value(ESV)at the township scale has important reference value for rural Gross ecosystem product(GEP)and the optimization of the spatial layout of rural revitalization.Taking 215 typical towns in the hilly area of Sichuan,based on the classification system of Production-Living-Ecological Land(PLEL)Classification System and the value-equivalent factor method per unit area,this paper quantitatively evaluated the spatial distribution,trade-offs,synergies,and the characteristics of supply and demand pattern of ESV at the township scale.The results showed that:(1)There was obvious spatial heterogeneity and aggregation characteristics in the rural ESV spatial distribution in the study area.The ESV in the hilly areas of the south and southwest was higher than that in the north and central,and the ESV in the central area was the lowest.Meanwhile,ESV hotspots were mainly concentrated in the west and south.The cold spots were mainly distributed in the central and northeast.(2)In 2015,the ESV of the study area was 62705 yuan/hm2,with regulation services(75.69%),food production(9.07%)and habitat services(6.45%).The types of PLEL with a high contribution rate to ESV were:arbor woodland(41.25%),river wetland(22.95%),paddy field(15.08%),and dry land(12.13).(3)The introduction of chord diagrams in this paper clearly expressed the trade-off and synergy between ecosystem services,where supply services and the other three types of services all had a trade-off relationship,while regulation,culture,and habitat services are synergistic.(4)The imbalance between supply and demand of ecosystem services in the study area was obvious,and the supply and demand patterns were mainly L-H(39.98%)and H-L(35.92%),showing a trend of polarization.The H-H model had a reasonable structure and coordinated economic and ecological benefits.It was a representative template for sustainable development at the township scale.The results of this study can provide references for the decision-making of ecological environment protection in the Sichuan Basin and the upper reaches of the Yangtze River.关键词
生态系统服务价值/供需格局/三生用地/乡镇尺度/四川丘陵区Key words
ecosystem service value/supply and demand pattern/Production-Living-Ecological Land(PLEL)/township scale/Sichuan hilly area分类
管理科学引用本文复制引用
廖桂堂,林正雨,何鹏,高雪松,方从刚,邓欧平,王珊,邓良基..基于"三生用地"的四川丘陵区乡村生态系统服务价值及其供需格局评估[J].生态科学,2024,43(2):151-162,12.基金项目
国家重点研发计划资助项目(2020YFD1100601) （2020YFD1100601）
四川省杰出青年科技人才项目(2020JDJQ0073) （2020JDJQ0073）
成都信息工程大学引进人才科研启动项目(KYTZ202116) （KYTZ202116）
四川省农业科学院计划项目(1+9KJGG009) （1+9KJGG009）
