生态型县域生态系统服务时空格局及其协同关系——以国家全域旅游示范区江西省武宁县为例  

Spatiotemporal Patterns of Ecosystem Services and Trade-off/Synergistic Relationships in Ecological Counties—Taking National Comprehensive Tourism Demonstration Zone at Wuning County,Jiangxi Province as an Example

作　　者：刘尧兰[1,2] 温智亮 郑博福[1,2] 黄云[1,2] 朱锦奇 刘忠 万炜[1,2] Liu Yaolan;Wen Zhiliang;Zheng Bofu;Huang Yun;Zhu Jinqi;Liu Zhong;Wan Wei(Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,School of Resources&Environment,Nanchang University,Nanchang,Jiangxi 330031,China;Jiangxi Institute of Ecological Civilization,Nanchang University,Nanchang,Jiangxi 330031,China;College of Land Science and Technology,China Agricultural University,Beijing 100193,China)

机构地区：[1]南昌大学资源与环境学院鄱阳湖环境与资源利用教育部重点实验室,江西南昌330031 [2]南昌大学江西生态文明研究院,江西南昌330031 [3]中国农业大学土地科学与技术学院,北京100193

出　　处：《水土保持通报》2024年第2期400-415,共16页Bulletin of Soil and Water Conservation

基　　金：江西省重点研发计划项目“生态型县域碳达峰碳中和评估模型搭建与应用,江西重要生态功能区生态产品价值实现的数字化技术集成与示范”(20223BBG74S01,20223BBG71013);国家自然科学基金青年项目(42301091)。

摘　　要：[目的]分析生态型县域生态系统服务的时空变化及协同关系,为促进国家生态文明建设,实现生态保护和社会经济协调发展提供理论参考。[方法]以江西省武宁县为例,结合野外实测数据,运用InVEST模型评估了该区2000—2020年水源涵养、土壤保持、碳储存和粮食供给4种典型生态系统服务,在此基础上探讨了生态系统服务间的协同关系及其时空变化特征。[结果]①2000—2020年,武宁县单位栅格年平均水源涵养量从173.14 mm提升至283.92 mm,单位栅格年平均粮食供给量从3.52 kJ提升至5.34 kJ,两者均呈现增长趋势;土壤保持功能呈先减少,后增长,再减少的波动趋势;20 a间土壤保持功能下降了15.71%,而碳储存功能呈现微弱增长的趋势。②武宁县南部和北部的林地是水源涵养、土壤保持和碳储存的高值区;水域、建设用地及未利用地分布区域是水源涵养、土壤保持和碳储存的低值区;4种生态系统服务中,林地和耕地是生态系统服务功能发展的关键用地。③武宁县水源涵养、土壤保持和碳储存3者之间是协同关系,与粮食供给是权衡关系;“高—高”和“低—低”集聚的协同关系主要分布在高海拔的林地及水域,“高—低”和“低—高”集聚的权衡关系主要分布在耕地。[结论]2000—2020年武宁县生态系统服务功能整体呈上升趋势,未来应重点关注生态调节服务功能向资源价值的转化。[Objective]The spatiotemporal changes and trade-off/synergistic relationships of ecosystem services in an ecological county were analyzed in order to provide a theoretical reference for promoting the construction of national ecological civilization and to realize the coordinated development of ecological protection and social economy.[Methods]This study was conducted at Wuning County of Jiangxi Province.Field-measured data were used with the InVEST model to evaluate four typical ecosystem services from 2000 to 2020:water conservation,soil conservation,carbon storage,and food supply.On this basis,the trade-off and synergistic relationships of ecosystem services and their spatiotemporal changes were determined.[Results]①From 2000 to 2020,the average annual water conservation per grid unit at Wuning County increased from 173.14 mm to 283.92 mm,and the average annual food supply per grid unit increased from 3.52 kJ to 5.34 kJ.The soil conservation function showed a fluctuating trend of decreasing,then increasing,and then decreasing.Over the past 20 years,the soil conservation function decreased by 15.71%,while the carbon storage function showed a weak growth trend.②The forest land at Southern and Northern Wuning County was a high value area of water conservation,soil conservation,and carbon storage.The water areas,construction land,and unused land were the low value areas for water conservation,soil conservation,and carbon storage.Forest land,and farmland were the key land use types for the development of ecosystem service functions.③Water conservation,soil conservation,and carbon storage in Wuning County were synergistically related,but the relationships between food supply and the other three ecosystem services were trade-off relationships.The synergies of“high-high”and“low-low”agglomeration were mainly located in high-altitude forest land and water areas,while the trade-off relationships of“high-low”and“low-high”agglomeration were mainly located in farmland.[Conclusion]During 2000—2020,the

关 键 词：生态系统服务 权衡与协同 InVEST模型 生态型县域 江西省武宁县 

分 类 号：X171.1[环境科学与工程—环境科学]