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The stability of Qinghai-Tibet Plateau ecosystem to climate change
Physics and Chemistry of the Earth, Parts A/B/C ( IF 3.0 ) Pub Date : 2020-01-03 , DOI: 10.1016/j.pce.2019.102827
Shuren Wang , Lanlan Guo , Bin He , Yanli lyu , Tiewei Li

Climate change and simultaneous increases in extreme events have significant impacts on the structure and function of the global ecosystem. The response of the ecosystem on the Qinghai–Tibet Plateau (QTP) to climate change has drawn increasing attention for its prominent elevation. In this study, resistance and resilience were selected as two stability indicators of ecosystems to analyze the response of the QTP ecosystem to climate change over the past 34 years. We explored the main climate drivers that affect vegetation change, and predicted the stability of the ecosystem in the future. The results showed that the coniferous and Hylaea coniferous and hylaea forests of the QTP had high resilience, whereas the steppe and meadow had poor resilience. Shrubs and coniferous and hylaea coniferous and hylaea forests were with less resistance to climate change, whereas steppe and meadow showed more resistance to climate change. Temperature (TEMP) was the driving factor that affected the stability of steppe and meadow; however, precipitation (PRE) had a greater impact on stability of coniferous and hylaea forests and shrubs. Based on the CMIP5 results, TEMP and PRE on the QTP will significantly increase (p < 0.01) in the next 85 years, and 50.48% of the QTP will become more suitable for vegetation growth, mainly distributing in the southern meadow, part of the Hylaea, and areas bordering the southeastern coniferous and hylaea forests and shrubs. However, the ecosystem degradation might occurr in the central and eastern meadow regions.



中文翻译:

青藏高原生态系统对气候变化的稳定性

气候变化和极端事件的同时增加对全球生态系统的结构和功能产生重大影响。青藏高原的生态系统对气候变化的响应因其突出的海拔高度而引起了越来越多的关注。在这项研究中,选择抵抗力和恢复力作为生态系统的两个稳定性指标,以分析QTP生态系统在过去34年中对气候变化的响应。我们探索了影响植被变化的主要气候驱动因素,并预测了未来生态系统的稳定性。结果表明,QTP针叶林和绣球林的回弹性强,而草原和草甸的回弹性差。灌木,针叶林和绣球林针叶林和绣球林对气候变化的抵抗力较小,而草原和草甸对气候变化的抵抗力更大。温度(TEMP)是影响草原和草地稳定性的驱动因素。然而,降水(PRE)对针叶林和绣球林以及灌木林的稳定性影响更大。根据CMIP5的结果,在接下来的85年里,QTP上的TEMP和PRE将显着增加(p <0.01),并且QTP的50.48%将更适合于植被生长,主要分布在南部草地上,部分是绣球花,以及与东南针叶和绣球花森林和灌木接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。草原和草地对气候变化的抵抗力更大。温度(TEMP)是影响草原和草地稳定性的驱动因素。然而,降水(PRE)对针叶林和绣球林以及灌木林的稳定性影响更大。根据CMIP5的结果,在接下来的85年里,QTP上的TEMP和PRE将显着增加(p <0.01),并且QTP的50.48%将更适合于植被生长,主要分布在南部草地上,部分是Hylaea,以及与东南针叶和Hylaea森林和灌木接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。草原和草地对气候变化的抵抗力更大。温度(TEMP)是影响草原和草地稳定性的驱动因素。然而,降水(PRE)对针叶林和绣球林以及灌木林的稳定性影响更大。根据CMIP5的结果,在接下来的85年里,QTP上的TEMP和PRE将显着增加(p <0.01),并且QTP的50.48%将更适合于植被生长,主要分布在南部草地上,部分是Hylaea,以及与东南针叶和Hylaea森林和灌木接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。降水(PRE)对针叶林和绣球林和灌木的稳定性影响更大。根据CMIP5的结果,在接下来的85年里,QTP上的TEMP和PRE将显着增加(p <0.01),并且QTP的50.48%将更适合于植被生长,主要分布在南部草地上,部分是Hylaea,以及与东南针叶和Hylaea森林和灌木接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。降水(PRE)对针叶林和绣球林和灌木的稳定性影响更大。根据CMIP5的结果,在接下来的85年里,QTP上的TEMP和PRE将显着增加(p <0.01),并且QTP的50.48%将更适合于植被生长,主要分布在南部草地上,部分是绣球花,以及与东南针叶和绣球花森林和灌木接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。和东南针叶林和绣球林和灌木丛接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。和东南针叶林和绣球林和灌木丛接壤的地区。但是,生态系统退化可能发生在中部和东部的草地地区。

更新日期:2020-04-12
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