Adaptation strategies of climate variability impacts on alpine grassland ecosystems in Tibetan Plateau

文献类型： 外文期刊

第一作者： Gao, Qing-zhu

作者： Gao, Qing-zhu;Li, Yue;Wan, Yun-fan;Gao, Qing-zhu;Li, Yue;Wan, Yun-fan;Xu, Hong-mei;Jiangcun, Wang-zha

作者机构：

关键词： Climate variability;Adaptation strategies;Water-saving irrigation;Alpine grassland;Northern Tibet

期刊名称：MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE （ 影响因子：3.583； 五年影响因子：3.693 ）

ISSN： 1381-2386

年卷期： 2014 年 19 卷 2 期

页码：

收录情况： SCI

摘要： Northern Tibet is the headstream region for the Yangtze, Salween River, Mekong River, and numerous other inflowing rivers and high mountain lakes. Sustaining the environmental conditions in the region is of vital importance for Tibet and the whole of China. The alpine grassland ecosystem in Northern Tibet is the most important ecosystem and extremely sensitive to climate change and human activity. In this study, we analyzed the characteristics of climate variability based on observed meteorological data and future climate scenarios, and reviewed the impact of climate variability and to explore adaptation strategies of alpine grassland in Northern Tibet. The result showed that the annual mean temperature has increased by 0.31 A degrees C center dot 10a(-1) while the annual total precipitation has increased by 14.6 mm center dot 10a(-1) with high inter-annual and inter-seasonal fluctuations in Northern Tibet from 1961 to 2008. The rising trends of temperature and precipitation would be continued and the aridity indices showed a decreasing trend in the future, which potentially predicts that the climate in Northern Tibet becomes warmer and dryer. The climate variability results the melting of glaciers, the expansion of inland high mountain lakes and the negative impacts on alpine grassland in recent years. In order to adapt to such possible future climate changes, the alpine grassland water-saving irrigation was recommended as key adaptation measure and also rational grazing management, alpine grassland fencing and artificial grass planting were selected as adaptation measures, to lower the negative impacts of climate variability on the alpine grassland ecosystem in Northern Tibet.

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