Spatio-Temporal Patterns of the Land Carrying Capacity of Tibet Based on Grain Demand and Calorie Requirement
文献类型：期刊论文
| 作者 | Zhang, Chao1,2,3; Yang, Yanzhao1,2,4; Xiao, Chiwei1,2; You, Zhen1,2; Song, Xinzhe1,2 |
| 刊名 | LAND
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 11期号:3页码:20 |
| 关键词 | land carrying capacity load on land resources food supply-demand balance spatio-temporal patterns Tibet |
| DOI | 10.3390/land11030380 |
| 通讯作者 | Yang, Yanzhao(yangyz@igsnrr.ac.cn) |
| 英文摘要 | Tibet constitutes a major part of the Qinghai-Tibet Plateau (QTP) and is a typical ethnic minority (e.g., Tibetan) and ecologically fragile area in the world. Land resources are one of the most important foundations of food production, and Tibet's increasingly multi-type food demands are putting new pressure on land resources. However, there is still debate on how many people can be supported with the food production in Tibet. Investigating the land carrying capacity (LCC) in Tibet is very important for maintaining food security and formulating sustainable land management and utilization. Based on an analysis of the unique characteristics of the local farming, pastoral production, and dietary consumption, the spatio-temporal patterns of theLCC in Tibet in 2000-2019 were quantitatively assessed against the grain demands and calorie requirements at three different standards of living (i.e., basic prosperity, comprehensive moderate prosperity, and affluence). The dietary consumption was characterized by the high consumption of grains and meat products, and the low consumption of fruits and vegetables. The LCC in Tibet has continued to increase. The LCC in approximately 60% of the counties increased, with the high-LCC counties concentrated mainly in the Yarlung Zangbo River-Nyangqu River-Lhasa River area, and municipal districts and pastoral counties generally experiencing a low LCC. The load on land resources (LoL) in Tibet exhibited the characteristic of overall balance with local overloads and increasing tensions. More than 50% of the counties experienced population overload, mainly in municipal districts and pastoral counties. Food surplus was mainly found in farming counties, while the food production in pastoral counties was generally unable to meet the calorie demand. Considering the important role of land use in maintaining regional food security and ecological security, the conversion of grassland to cultivated land, the occupation of cultivated land, and the phenomenon of cultivated land was used to non grain should be avoided. Trans-regional transport of food should be strengthened to meet the calorie needs in population overload areas in the future. Our study provides a perspective for evaluating the pressure of land resources. The result can provide a reference for realizing the balance of grain and calorie supply-demand and lay a foundation for formulating sustainable land use policies in the QPT. |
| WOS关键词 | FOOD-CONSUMPTION PATTERNS ; NUTRITION TRANSITION ; RESOURCE ; CHINA ; MODEL |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1006] ; National Natural Science Foundation of China[42130508] ; Chinese Academy of Sciences[ZDRW-XH-2021-3] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000775063500001 |
| 出版者 | MDPI |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/173243]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Yanzhao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 4.Minist Nat Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chao,Yang, Yanzhao,Xiao, Chiwei,et al. Spatio-Temporal Patterns of the Land Carrying Capacity of Tibet Based on Grain Demand and Calorie Requirement[J]. LAND,2022,11(3):20. |
| APA | Zhang, Chao,Yang, Yanzhao,Xiao, Chiwei,You, Zhen,&Song, Xinzhe.(2022).Spatio-Temporal Patterns of the Land Carrying Capacity of Tibet Based on Grain Demand and Calorie Requirement.LAND,11(3),20. |
| MLA | Zhang, Chao,et al."Spatio-Temporal Patterns of the Land Carrying Capacity of Tibet Based on Grain Demand and Calorie Requirement".LAND 11.3(2022):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
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