Glacier retreat, rock weathering and the growth of lichens in the Churup Valley, Peruvian Tropical Andes
文献类型：期刊论文
| 作者 | Emmer, Adam; Juricova, Anna; Veettil, Bijeesh Kozhikkodan |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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