Challenges and Solutions for Sustainable Land Use in Ruoergai-the Highest Altitude Peatland in Qinhai-Tibetan Plateau, China
Challenges and Solutions for Sustainable Land Use in Ruoergai-the Highest Altitude Peatland in Qinhai-Tibetan Plateau, China
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DOI：
10.1016/j.egypro.2011.03.180
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Zhang Xiaohong;Liu Hong-yu;Xing Zisheng
中科院分区：
文献类型：
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作者：
Zhang Xiaohong;Liu Hong-yu;Xing Zisheng
若尔盖泥炭地在调节广阔的高地牧场和下游地区-黄河流域的水文、维持生物多样性和为西藏牧民提供生存空间方面发挥着重要作用。通过多种渠道筹集资金，采取了实质性措施，制止或扭转了退化。然而，与过度放牧和其他不当资源利用有关的退化问题仍未解决。通过对1977年和2007年的卫星图像进行分析，并结合泥炭取样的实地调查，评估了该地区主要的退化情况，为该地区的可持续土地管理寻求进一步的解决方案。结果表明，由于过度放牧和人为改变排水系统，77%的泥炭地退化。大约1,568公顷退化泥炭地已通过筑坝方法成功恢复。生态系统的功能，如其对气候变化的复原力和对当地和下游社区的适应能力，可以通过筑坝方法以很少的费用恢复。
The Ruoergai peatlands play an important role in regulating the hydrology of vast upland rangelands and downstream regions - the Yellow River watershed, maintaining the biodiversity and providing living space for Tibetan pastoralists. With various channels of funds, substantial measures were taken to stop or reverse the degradations. However, the degradations associated with over-grazing and other improper resources utilization remain unsolved. The satellite images in 1977 and 2007 were analyzed with the aid of field survey through peat coring to assess the dominant degradations and seek further solutions for the sustainable land management in this area. Results show that 77% of peatlands were degraded by overgrazing and artificial drainage change for more cultivation land. Approximately, 1,568ha of the degraded peatlands have been successfully restored by damming approach. The ecosystem functions such as their resilience to climate change and adaptive capacity to the local and downstream communities may be restored through damming approach with very little expense.