气候变化领域集成服务门户(CCPortal): Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades

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DOI	10.1002/ppp.2127
	Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades
	Serban, Raul-David; Jin, Huijun; Serban, Mihaela; Luo, Dongliang
通讯作者	Jin, HJ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1045-6740
EISSN	1099-1530
起始页码	601
结束页码	617
卷号	32 期号:4
英文摘要	Identifying the changes in thermokarst lake dynamics has a significant contribution to landscape-scale hydrology, ecology, and assessment of carbon budgets in permafrost regions. Changes in the number and areal extent of thermokarst lakes and ponds were quantified in a representative permafrost area (150 km(2)) in the south-central Headwater Area of the Yellow River (HAYR). Water-body inventories were generated from Landsat satellite imageries using the supervised Maximum Likelihood Classification method for three periods: 1986, 2000, and 2015. From 1986 to 2015, the number of water bodies larger than 0.36 ha decreased by 40% (461-277), while the total surface area decreased by 25% (542-406 ha). The ponds category (smaller than 1 ha) recorded the most substantial change, as their number decreased by 44% and their water-surface area by 41%. Many lakes disintegrated, partially drained, and formed several remnant ponds, while the majority of the ponds did not drain completely, but shrank below 0.36 ha. These shrinking patterns are consistent with the warming climate in the HAYR, which suggests intense permafrost degradation. Future research will be focused on a better understanding of water-heat dynamics of thermokarst lakes and ponds in association with permafrost degradation at a landscape scale.
关键词	GROUNDWATER STORAGE CHANGES PERMAFROST DEGRADATION YELLOW-RIVER THERMAL REGIME HEADWATER AREA SURFACE-WATER BEILUHE BASIN DYNAMICS CLIMATE TEMPERATURE
英文关键词	maximum likelihood classification; northeastern Qinghai-Tibet plateau; permafrost; remote sensing; thermokarst lakes and ponds
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geology
WOS记录号	WOS:000693438500001
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254663
作者单位	[Serban, Raul-David; Jin, Huijun; Serban, Mihaela; Luo, Dongliang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China; [Serban, Raul-David; Serban, Mihaela] West Univ Timisoara, Appl Geomorphol & Interdisciplinary Res Ctr, Dept Geog, Timis, Romania; [Jin, Huijun] Northeast Forestry Univ, Minist Educ, Inst Cold Reg Sci & Engn, Sch Civil Engn, Harbin, Peoples R China; [Jin, Huijun] Northeast Forestry Univ, Minist Educ, Northeast China Observ, Harbin, Peoples R China; [Jin, Huijun] Northeast Forestry Univ, Minist Educ, Res Stn Permafrost Geol Environm, Harbin, Peoples R China
推荐引用方式 GB/T 7714	Serban, Raul-David,Jin, Huijun,Serban, Mihaela,et al. Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades[J]. 中国科学院西北生态环境资源研究院,2021,32(4).
APA	Serban, Raul-David,Jin, Huijun,Serban, Mihaela,&Luo, Dongliang.(2021).Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades.PERMAFROST AND PERIGLACIAL PROCESSES,32(4).
MLA	Serban, Raul-David,et al."Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades".PERMAFROST AND PERIGLACIAL PROCESSES 32.4(2021).