Extensive and drastically different alpine lake changes on Asia's high plateaus during the past four decades
Extensive and drastically different alpine lake changes on Asia's high plateaus during the past four decades
复制标题
过去四十年来，气候变化导致亚洲高原上高山湖泊发生广泛且截然不同的变化
DOI：
10.1002/2016gl072033
复制
发表时间：
2017-01-01
影响因子：
5.2
通讯作者：
Zhang, Hongbo
中科院分区：
文献类型：
--
作者：
Zhang, Guoqing;Yao, Tandong;Zhang, Hongbo
亚洲高原对气候变化很敏感，过去几十年来一直在经历快速变暖。在过去的四十年里，1970-2013年，由于降水和冰冻圈对青藏高原水平衡的贡献增加，我们在青藏高原发现了99个新湖泊和广泛的湖泊扩张。这与邻近的蒙古高原上的湖泊消失和湖泊面积急剧缩小形成鲜明对比：208个湖泊消失，75%的剩余湖泊已经缩小。我们发现了一个统计上显着的巧合时间湖泊面积的变化，在这两个高原，与1997/1998年期间发生的气候制度转变。1997/1998年的这种明显变化被认为是由气候变暖引起的大规模大气环流变化所驱动的。我们的研究结果表明，这两个相邻的高原一直在朝着相反的方向变化，以应对气候变化。这些发现揭示了区域气候和水循环的复杂作用，并为这些脆弱景观的生态和水资源规划提供了有用的信息。
Asia's high plateaus are sensitive to climate change and have been experiencing rapid warming over the past few decades. We found 99 new lakes and extensive lake expansion on the Tibetan Plateau during the last four decades, 1970-2013, due to increased precipitation and cryospheric contributions to its water balance. This contrasts with disappearing lakes and drastic shrinkage of lake areas on the adjacent Mongolian Plateau: 208 lakes disappeared, and 75% of the remaining lakes have shrunk. We detected a statistically significant coincidental timing of lake area changes in both plateaus, associated with the climate regime shift that occurred during 1997/1998. This distinct change in 1997/1998 is thought to be driven by large-scale atmospheric circulation changes in response to climate warming. Our findings reveal that these two adjacent plateaus have been changing in opposite directions in response to climate change. These findings shed light on the complex role of the regional climate and water cycles and provide useful information for ecological and water resource planning in these fragile landscapes.