Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes

doi:10.1007/s11629-019-5431-x

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.7

	Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes
	Emmer, Adam; Juricova, Anna; Veettil, Bijeesh Kozhikkodan
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:7 页码:1485-1499
关键词	Cordillera Blanca Tropical glaciers Deglaciation Geoenvironmental change Lichenometry Rhizocarpon geographicum Schmidt hammer Andes
ISSN号	1672-6316
DOI	10.1007/s11629-019-5431-x
文献子类	Article
英文摘要	The most heavily glacierized tropical range in the world - the Peruvian Cordillera Blanca - has been losing ice since the end of the Little Ice Age (LIA). In this study, the decline of the Churup glacier (9 degrees 28 ' 18 '' S; 77 degrees 25 ' 02 '' W) and associated processes were documented employing multi-proxy approach including the analysis of remotely sensed images (1948-2016), the Schmidt hammer rock test and lichenometric dating. It is shown that Churup glacier has lost the vast majority of its estimated LIA extent (1.05 +/- 0.1 km(2); 45.0x10(6) - 57.4x10(6) m(3)). The rate of glacier retreat is documented to vary in space (SE, SW and NW-facing slopes) and time, with the peak between 1986 and 1995. With an area of 0.045 km(2) in 2016, it is expected that the complete deglaciation of the Churup valley is inevitable in the near future. Recently (post-LIA) exposed bedrock surfaces have shown higher R-values (54.2-66.4, AVG 63.3, STDEV 2.9) compared to pre-LIA exposed surfaces (46.1-59.3, AVG 50.1, STDEV 4.9), confirming the links to the duration of rock weathering. The Lichenometric dating is applied to recently exposed areas and elevations above 4800 m a.s.l., revealing only limited reliability and agreement with the age of deglaciation estimated from remotely-sensed images in such an environment.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000474574600001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46527]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.7
推荐引用方式 GB/T 7714	Emmer, Adam,Juricova, Anna,Veettil, Bijeesh Kozhikkodan. Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(7):1485-1499.
APA	Emmer, Adam,Juricova, Anna,&Veettil, Bijeesh Kozhikkodan.(2019).Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes.JOURNAL OF MOUNTAIN SCIENCE,16(7),1485-1499.
MLA	Emmer, Adam,et al."Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes".JOURNAL OF MOUNTAIN SCIENCE 16.7(2019):1485-1499.