Large spatial variation and stagnation of cropland gross primary production increases the challenges of sustainable grain production and food security in China
文献类型：期刊论文
| 作者 | Liu, Fang1; Xiao, Xiangming1; Qin, Yuanwei1; Yan, Huimin2; Huang, Jikun3; Wu, Xiaocui1; Zhang, Yao4; Zou, Zhenhua5; Doughty, Russell B.6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-03-10 |
| 卷号 | 811页码:12 |
| 关键词 | Cropland productivity Sustainable agriculture Water resource storage Remote sensing |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.151408 |
| 通讯作者 | Xiao, Xiangming(xiangming.xiao@ou.edu) |
| 英文摘要 | Sustainable crop grain production and food security is a grand societal challenge. Substantial investments in China's agriculture have been made in the past decades, but our knowledge on cropland gross primary production in China remains limited. Here we analyzed gross primary production (GPP), solar-induced chlorophyll fluorescence (SIF), terrestrial water storage, crop grain production, and agricultural . investment and policy during 2000-2018. We found that based on croplands in 2000, approximately 52 x 10(6) ha (similar to 37%) had continuous increasing trends in GPP during 2000-2018, which were mainly located in northern China. GPP for 63% of croplands was stagnant, declined, or had no significant change. At the national scale, annual cropland GPP increased during 2000-2008 but became stagnant in 2009-2018, which was inconsistent with the interannual trend in the crop grain production data for 2009-2018. The spatial mismatch between crop production and water availability became worse. The major grain exporting provinces, mostly located in water-stressed regions, experienced increased water resource constraints, which posed a challenge for sustainable grain production. The stagnant cropland GPP and increasing water resource constraints highlight the urgent need for sustainable management for crop production and food security in China. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | INDUCED CHLOROPHYLL FLUORESCENCE ; WATER-RESOURCES ; YIELD ; PATTERNS ; LAND ; CONSISTENCY ; VEGETATION ; CLIMATE ; GRACE ; WHEAT |
| 资助项目 | Key Project of National Natural Science Foundation of China[42130505] ; National Institutes of Health[1R01AI101028-02A4] ; National Science Foundation[1911955] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000767249400016 |
| 出版者 | ELSEVIER |
| 资助机构 | Key Project of National Natural Science Foundation of China ; National Institutes of Health ; National Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/172769]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xiao, Xiangming |
| 作者单位 | 1.Univ Oklahoma, Ctr Earth Observat & Modeling, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Peking Univ, Sch Adv Agr Sci, China Ctr Agr Policy, Beijing 100087, Peoples R China 4.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA 94720 USA 5.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA 6.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA |
| 推荐引用方式 GB/T 7714 | Liu, Fang,Xiao, Xiangming,Qin, Yuanwei,et al. Large spatial variation and stagnation of cropland gross primary production increases the challenges of sustainable grain production and food security in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,811:12. |
| APA | Liu, Fang.,Xiao, Xiangming.,Qin, Yuanwei.,Yan, Huimin.,Huang, Jikun.,...&Doughty, Russell B..(2022).Large spatial variation and stagnation of cropland gross primary production increases the challenges of sustainable grain production and food security in China.SCIENCE OF THE TOTAL ENVIRONMENT,811,12. |
| MLA | Liu, Fang,et al."Large spatial variation and stagnation of cropland gross primary production increases the challenges of sustainable grain production and food security in China".SCIENCE OF THE TOTAL ENVIRONMENT 811(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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