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Decreasing Cropping Intensity Dominated the Negative Trend of Cropland Productivity in Southern China in 2000-2015

文献类型：期刊论文

作者Niu, Zhongen1,2; Yan, Huimin1,2; Liu, Fang1
刊名SUSTAINABILITY
出版日期2020-12-01
卷号12期号:23页码:14
关键词cropland productivity gross primary productivity cropping intensity vegetation photosynthesis model China
DOI10.3390/su122310070
通讯作者Yan, Huimin(yanhm@igsnrr.ac.cn)
英文摘要As the country with the highest food consumption in the world, China's food security has been drawing global attention. The inter-annual variability of agricultural productivity and its predominant driving factors play important roles in food security and sustainable agricultural development. Here, we used gross primary productivity (GPP), which was simulated using the vegetation photosynthesis model (VPM), to quantify the spatial-temporal heterogeneity of cropland productivity from 2000 to 2015. The results showed that the cropland GPP significantly increased in northern China and markedly decreased in southern China. Socioeconomic and climatic factors jointly promoted a rise in GPP in the Northeast region, Inner Mongolia and Great Wall region, Huang-Huai-Hai region, and Loess Plateau region, with contribution rates of 93.6%, 67.9%, 73.8%, and 78.1%, respectively. The negative GPP trend in southern China was mainly attributed to the decreasing cropping intensity, with direct contributions of 54.1%, 53.9%, and 48.7% for the Yangtze River region, Southwest region, and South China region, respectively. Despite the decline in cropping intensity, the policies of Cang-liang-yu-di and Cang-liang-yu-ji can help in ensuring food security in China.
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040301] ; Establishment of National Ecological Environmental Accounting System[2110105]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000597636800001
出版者MDPI
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Establishment of National Ecological Environmental Accounting System
源URL[http://ir.igsnrr.ac.cn/handle/311030/137230]  
专题中国科学院地理科学与资源研究所
通讯作者Yan, Huimin
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Niu, Zhongen,Yan, Huimin,Liu, Fang. Decreasing Cropping Intensity Dominated the Negative Trend of Cropland Productivity in Southern China in 2000-2015[J]. SUSTAINABILITY,2020,12(23):14.
APA Niu, Zhongen,Yan, Huimin,&Liu, Fang.(2020).Decreasing Cropping Intensity Dominated the Negative Trend of Cropland Productivity in Southern China in 2000-2015.SUSTAINABILITY,12(23),14.
MLA Niu, Zhongen,et al."Decreasing Cropping Intensity Dominated the Negative Trend of Cropland Productivity in Southern China in 2000-2015".SUSTAINABILITY 12.23(2020):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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