气候变化领域集成服务门户(CCPortal): Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains, Northeast China

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DOI	10.1016/j.accre.2021.06.007
	Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains, Northeast China
	He R.-X.; Jin H.-J.; Luo D.-L.; Li X.-Y.; Zhou C.-F.; Jia N.; Jin X.-Y.; Li X.-Y.; Che T.; Yang X.; Wang L.-Z.; Li W.-H.; Wei C.-L.; Chang X.-L.; Yu S.-P.
发表日期	2021
ISSN	1674-9278
卷号	12 期号:5
英文摘要	The Nanwenghe Wetlands Reserve in the Yile'huli Mountains is a representative region of the Xing'an permafrost. The response of permafrost to climate change remains unclear due to limited field investigations. Thus, longer-term responses of the ground thermal state to climate change since 2011 have been monitored at four sites with varied surface characteristics: Carex tato wetland (P1) and shrub-C. tato wetland (P2) with a multi-year average temperatures at the depth of zero annual amplitude (TZAA) of −0.52 and −1.19 °C, respectively; Betula platyphylla-Larix gmelinii (Rupr.) Kuzen mixed forest (P3) with TZAA of 0.17 °C, and; the forest of L. gmelinii (Rupr.) Kuzen (P4) with TZAA of 1.65 °C. Continuous observations demonstrate that the ecosystem-protected Xing'an permafrost experienced a cooling under a warming climate. The temperature at the top of permafrost (TTOP) rose (1.8 °C per decade) but the TZAA declined (−0.14 °C per decade), while the active layer thickness (ALT) thinned from 0.9 m in 2012 to 0.8 m in 2014 at P1. Both the TTOP and TZAA increased (0.89 and 0.06 °C per decade, respectively), but the ALT thinned from 1.4 m in 2012 to 0.7 m in 2016 at P2. Vertically detached permafrost at P3 disappeared in summer 2012, with warming rates of +0.42 and + 0.17 °C per decade for TTOP and TZAA, respectively. However, up to date, the ground thermal state has remained stable at P4. We conclude that the thermal offset is crucial for the preservation and persistence of the Xing'an permafrost at the southern fringe. © 2021 The Authors
英文关键词	Active layer thickness; Climate change; Ground thermal state; Local environmental factors; Nanwenghe wetland reserve; Permafrost; Thermal offset
语种	英语
来源期刊	Advances in Climate Change Research
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/251239
作者单位	State Key Laboratory of Frozen Soils Engineering and Da Xing'anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 73000, China; Institute of Cold Regions Science and Engineering, School of Civil Engineering, Northeast-China Observatory and Research-Station of Permafrost Geo-Environment (Ministry of Education), and Northeast Forestry University, Harbin, 150040, China; School of Geography and Tourism, Harbin University, Harbin, 150086, China; Harbin Center for Natural Resources Survey, Geological Survey of China, Harbin, 150086, China; School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, China; China Forest Ecological Research Network (CFERN) Station at the Headwater Area of Nenjiang River, Daxing'anling Institute of Agriculture and Forestry, Daxing'anling Forestry Group, Jagdaqi, 165100, China; National-Local Joint Engineering Laboratory of Geo-Spatial Informa...
推荐引用方式 GB/T 7714	He R.-X.,Jin H.-J.,Luo D.-L.,等. Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains, Northeast China[J]. 中国科学院西北生态环境资源研究院,2021,12(5).
APA	He R.-X..,Jin H.-J..,Luo D.-L..,Li X.-Y..,Zhou C.-F..,...&Yu S.-P..(2021).Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains, Northeast China.Advances in Climate Change Research,12(5).
MLA	He R.-X.,et al."Permafrost changes in the Nanwenghe Wetlands Reserve on the southern slope of the Da Xing'anling‒Yile'huli mountains, Northeast China".Advances in Climate Change Research 12.5(2021).