Identifying eco-functional zones on the Chinese Loess Plateau using ecosystem service bundles  

作　　者：WU Fan LIANG Youjia LIU Lijun YIN Zhangcai HUANG Jiejun 

机构地区：[1]School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan,430070,China [2]College of Resources and Environment,Yangtze University,Wuhan,430100,China

出　　处：《Regional Sustainability》2023年第4期425-440,共16页区域可持续发展（英文）

基　　金：supported by the Science Foundation of Hubei Province(2021CFB295);the China Postdoctoral Science Foundation(2023M730363);the China Meteorological Administration Key Open Laboratory of Transforming Climate Resources to Economy(2023016);the National Natural Science Foundation of China(42171415)。

摘　　要：Optimizing the function of ecosystem services(ESs)is vital for implementing regional ecological management strategies.In this study,we used multi-source data and integrated modelling methods to assess the spatiotemporal variations in eight typical ESs on the Chinese Loess Plateau from 2000 to 2015,including grain production,raw material provision,water conservation,carbon storage service,soil conservation,oxygen production,recreation,and net primary productivity(NPP)services.Then,we divided the ecosystem service bundles(ESBs)according to relationships among the eight ESs,obtaining four types of eco-functional areas at the county(city or banner or district)level based on the spatial clustering of similarities in different ES types.We also identified and assessed the contributions of influencing factors to these eco-functional areas using principal component analysis(PCA)across spatiotemporal scales.We found that the spatiotemporal variations in different ESs were noticeable,with an overall increase in grain production and soil conservation services,no significant change in carbon storage service,and overall decreases in raw material provision,water conservation,oxygen production,recreation,and NPP services.From 2000 to 2015,the number of significant synergistic ES pairs decreased,while that of significant trade-off pairs increased.To the changes of ESBs in the eco-functional areas,the results indicated that the indirect loss of these ESs from forest and grassland due to urban expansion should be reduced in ecological development area(ESB 2)and multi ecological functional area(ESB 3).Meanwhile,crop planting structures and planting densities should be adjusted to reduce ES trade-offs associated with water conservation service in grain-producing area(ESB 4).Lastly,ESB-based ecofunctional zoning can be used to improve ecological restoration management strategies and optimize ecological compensation schemes in ecologically fragile area(ESB 1).

关 键 词：Ecosystem services Trade-offs SYNERGY Land use/land cover Climate change Principal component analysis(PCA) Chinese Loess Plateau 

分 类 号：X321[环境科学与工程—环境工程]