DOI: 10.1016/j.resconrec.2020.104724
论文题名: Dynamic response of agricultural productivity to landscape structure changes and its policy implications of Chinese farmland conservation
作者: Penghui J. ; Manchun L. ; Liang C.
刊名: Resources, Conservation and Recycling
ISSN: 9213449
出版年: 2020
卷: 156 语种: 英语
英文关键词: Farmland protection
; Landscape evolution
; Landscape structural classification model
; Potential productivity
Scopus关键词: Conservation
; Ecosystems
; Productivity
; Public policy
; Agricultural activities
; Agricultural productivity
; Farmland protections
; Landscape evolutions
; Potential productivity
; Structural classification
; Sustainable agricultural
; Sustainable agriculture
; Farms
; agricultural land
; agricultural production
; alternative agriculture
; dynamic response
; landscape change
; landscape evolution
; agricultural land
; article
; China
; grain yield
; human
; landscape
; productivity
; China
英文摘要: Farmland landscape systems are crucial to sustainable agriculture, but they can readily be disturbed by non-agricultural activities. However, the conclusion that agricultural landscape system would affect farmland productivity remains uncertain and lacks quantitative evidence. To construct a healthy farmland ecosystem to avoid farmland fragmentation and support a sustainable agricultural production, we built a structural classification model for the farmland landscape system to analyse spatiotemporal evolutionary trends in China's farmland landscape system at the pixel level. Then, long-term grain yield monitored by stations and potential productivity of farmland calculated using a global agro-ecological zone (GAEZ) model were applied to explore the relationship between agriculture production and farmland landscape system variations. The results showed that China's farmland landscape tends to be fragmented. Model analyses showed that the fragmentation of farmland will cause an average 55.33 % cumulative decline in potential farmland productivity and that fragmentation of core farmland landscape will cause a 0.85 % decline in potential productivity. Based on these findings, we offer a farmland protection strategy based on the spatial optimum allocation of natural and human landscapes. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158271
Appears in Collections: 气候变化与战略
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作者单位: School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science, Nanjing University, Nanjing, Jiangsu 210023, China; Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources
Recommended Citation:
Penghui J.,Manchun L.,Liang C.. Dynamic response of agricultural productivity to landscape structure changes and its policy implications of Chinese farmland conservation[J]. Resources, Conservation and Recycling,2020-01-01,156