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The tradeoffs between food supply and demand from the perspective of ecosystem service flows: A case study in the Pearl River Delta, China

文献类型：期刊论文

作者Liu, Wei3,4; Zhan, Jinyan3; Zhao, Fen5; Zhang, Fan1,2; Teng, Yanmin3; Wang, Chao3; Chu, Xi3; Kumi, Michael Asiedu3
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2022
卷号301页码:10
关键词Provisioning ecosystem service Supply-demand ratio Ecosystem service flow Road networks Scenario analysis Pearl river delta
ISSN号0301-4797
DOI10.1016/j.jenvman.2021.113814
通讯作者Zhan, Jinyan(zhanjy@bnu.edu.cn)
英文摘要Ecosystem service flows are a research topic of significant interest, and exploring this topic may mitigate the shortcomings related to the spatial mismatches between supply and demand in the current ecosystem services studies. The Pearl River Delta (PRD) experiences a serious spatial mismatch in ecosystem services in particular the food supply, between the supply areas (hilly areas) and demand areas (central areas). Therefore, this study focused on the PRD as a case study to analyze change trends of food supply-demand ratio (FSDR) at city level, and depict the spatial flow path within and between cities from the perspective of ecosystem service flow with different threshold distance, using an enhanced two-step floating catchment area accessibility method. The results showed that the food demand significantly exceeded the supply, the budget was 3.58 million tons and FSDR was 0.49 in 2015. There were large discrepancies in the FSDR at the city level before and after when considering the ecosystem service flows. The FSDR of cities in the central areas increased 0.1%-30%, due to the ecosystem service flow from the low hilly areas. As delivery distances increased, the size of food flow decreased within cities and increased among cities. This led to a significant decline in the population living in severe undersupplied areas (FSDR 0.1) and oversupplied areas (FSDR 1), and an increase in undersupplied areas (0.1
WOS关键词SPATIAL ACCESSIBILITY ; WATER SECURITY ; CAPACITY ; MODEL ; FRAMEWORK ; REGION ; AREA ; CARE
资助项目State Key Program of National Natural Science Foundation of China[71533004] ; National Key Research and Development Program of China[2016YFC0502802] ; National Natural Science Foundation of China[41771546] ; National Natural Science Foundation of China[7210040251]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000704952800006
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构State Key Program of National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/167015]  
专题中国科学院地理科学与资源研究所
通讯作者Zhan, Jinyan
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China
3.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
4.Shandong Normal Univ, Coll Geog & Environm, Jinan 250358, Peoples R China
5.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Wei,Zhan, Jinyan,Zhao, Fen,et al. The tradeoffs between food supply and demand from the perspective of ecosystem service flows: A case study in the Pearl River Delta, China[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,301:10.
APA Liu, Wei.,Zhan, Jinyan.,Zhao, Fen.,Zhang, Fan.,Teng, Yanmin.,...&Kumi, Michael Asiedu.(2022).The tradeoffs between food supply and demand from the perspective of ecosystem service flows: A case study in the Pearl River Delta, China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,301,10.
MLA Liu, Wei,et al."The tradeoffs between food supply and demand from the perspective of ecosystem service flows: A case study in the Pearl River Delta, China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 301(2022):10.

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来源：地理科学与资源研究所

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