Glacial and postglacial pollen records from the Ecuadorian Andes and Amazon

被引：102

作者：

Colinvaux, PA

Bush, MB

SteinitzKannan, M

Miller, MC

机构：

[1] FLORIDA INST TECHNOL, DEPT BIOL SCI, MELBOURNE, FL 32901 USA

[2] NO KENTUCKY UNIV, DEPT BIOL, HIGHLAND HTS, KY 41076 USA

[3] UNIV CINCINNATI, DEPT BIOL, CINCINNATI, OH 45221 USA

来源：

QUATERNARY RESEARCH | 1997年 / 48卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1006/qres.1997.1908

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

A long pollen record is derived from sediments of a lake dammed behind a low moraine of the last glaciation at 3 degrees S latitude in the Ecuadorian Andes and is compared with a glacial age pollen record from the Amazon rainforest immediately below, Lake Surucucho (Llaviucu) lies at 3180 m on the Amazonian flank of the Andes and above the glacial age pollen record from San Juan Bosco at 970 m, The Surucucho pollen record is interpreted as showing treeless vegetation in glacial times, advance of treeline in late-glacial time, and Holocene development of modern Andean forests. Combining the Surucucho and San Juan Bosco records shows that Andean vegetation was affected by glacial cooling at all elevations, Vegetation did not move up and down slope as belts, Rather, plant associations were reformed as temperature-sensitive species found different centers of distribution with changing temperature. (C) 1997 University of Washington.

引用

页码：69 / 78

页数：10

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