Mutual influence between human activities and climate change in the Tibetan Plateau during recent years
文献类型：SCI/SSCI论文
| 作者 | Du M. Y. ; Kawashima S. ; Yonemura S. ; Zhang X. Z. ; Chen S. B. |
| 发表日期 | 2004 |
| 关键词 | biomass climate change feedback grassland livestock Tibetan Plateau general-circulation surface albedo temperature impact desertification precipitation |
| 英文摘要 | It is well known that there is a vast expanse of grassland on the Tibetan Plateau, China. It is suggested that a major climatic factor limiting production of the grassland ecosystem is the low thermo-conditions on the Tibetan Plateau. An increase in temperature may therefore increase the productivity of grasslands on the Plateau. Monthly mean temperature and monthly precipitation data for recent years on the Tibetan Plateau were analyzed. It is clear that the increase in air temperature on the Plateau is greater than that in the whole China and East Asia. On the other hand, statistics :,how that the production of livestock or meat in the Tibetan Plateau has increased by one to three times since 1978, which means that there should be an equivalent increase in the consumption of plant biomass from the grassland. How is the "increased biomass" related to human activities and climate changes? This paper tries to clarify the relationship between human activities and climate change and to propose a possible answer by laying emphasis on the importance of grassland protection and CO2 flux monitoring. It is suggested that there is a positive feedback in which degradation of grassland by overgrazing will increase potential evapotranspiration level thereby promoting the climate warming and the degradation process. This feedback should be considered seriously in the future. (C) 2004 Elsevier B.V. All rights reserved. |
| 出处 | Global and Planetary Change |
| 卷 | 41 |
| 期 | 3-4 |
| 页 | 241-249 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0921-8181 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24104]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Du M. Y.,Kawashima S.,Yonemura S.,et al. Mutual influence between human activities and climate change in the Tibetan Plateau during recent years. 2004. |
入库方式： OAI收割
来源：地理科学与资源研究所
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