The Impact of Climate Change and Human Activity on Spatiotemporal Patterns of Multiple Cropping Index in South West China
文献类型：期刊论文
| 作者 | Zhang, Chuangjuan1; He, Hongming1,3,4; Mokhtar, Ali1,2,3 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 11期号:19页码:21 |
| 关键词 | climate change population growth grain production degree of land intensive use spatiotemporal pattern land use cover change |
| DOI | 10.3390/su11195308 |
| 通讯作者 | He, Hongming(hongming.mobile@gmail.com) |
| 英文摘要 | Agricultural lands are very sensitive to climate and human activity changes, which result in variations in regional agricultural resources and decreased production of total grain output and increased difficulty in producing grain yields. Multiple cropping is one of the simplest ways to increase grain production. The research aims is to analyze the spatial and temporal variations in the multiple cropping index and study the factors that influence the multiple cropping index. Based on the maximum multiple cropping index (MCI) and a "heat-precipitation" quantitative relation model, we analyzed the theoretical potential multiple cropping index (PMCI) and the spatiotemporal changes in the potential increase in the multiple cropping index (PIMCI). Our results are as follows: The MCI was significantly higher in the eastern region than in the western region and higher in the central region than in the northern and southern regions; in Yunnan Province, it showed a fluctuating downwards trend; further, it exhibited sudden declines from 2004 to 2006 and from 2012 to 2014 in Guizhou, while it exhibited an increasing trend in Sichuan Province. The PMCIs were the highest in the eastern and southern regions, especially in eastern Sichuan Province, and the PIMCI was significantly higher in Yunnan Province than in Guizhou and Sichuan. Climate change, human activities, and terrain had significant influences on the MCI changes in southwest China, especially the temperature change, which was the key factor affecting the MCI changes. The dominant land use types in southwest China were forest (46%), grass (28%), and farmland (23%) during 1980-2015. Therefore, the adjustment of the planting structure in different terrain areas according to the temperature changes has become the main strategy to promote the sustainable development of cultivated land resources in the region, further, the results would help implement the plan to increase grain production capacity in southwest China. |
| WOS关键词 | LAND-USE CHANGE ; GRAIN PRODUCTION ; POLICY ; INTENSIFICATION ; SUSTAINABILITY ; INTENSITY ; SYSTEMS ; AREA |
| 资助项目 | National Key Research and Development Program[2017YFC0505205] ; National Natural Science Foundation of China[41672180] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000493525500167 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/131641]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | He, Hongming |
| 作者单位 | 1.Northwest Agr & Forestry Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, Egypt 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.East China Normal Univ, Sch Geog Sci, Shanghai 210062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chuangjuan,He, Hongming,Mokhtar, Ali. The Impact of Climate Change and Human Activity on Spatiotemporal Patterns of Multiple Cropping Index in South West China[J]. SUSTAINABILITY,2019,11(19):21. |
| APA | Zhang, Chuangjuan,He, Hongming,&Mokhtar, Ali.(2019).The Impact of Climate Change and Human Activity on Spatiotemporal Patterns of Multiple Cropping Index in South West China.SUSTAINABILITY,11(19),21. |
| MLA | Zhang, Chuangjuan,et al."The Impact of Climate Change and Human Activity on Spatiotemporal Patterns of Multiple Cropping Index in South West China".SUSTAINABILITY 11.19(2019):21. |
入库方式： OAI收割
来源：地理科学与资源研究所
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