Implications of mass elevation effect for the altitudinal patterns of global ecology

Implications of mass elevation effect for the altitudinal patterns of global ecology
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质量海拔效应对全球生态海拔模式的影响

DOI:
10.1007/s11442-016-1303-2
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发表时间:
2016-07
影响因子:
4.9
通讯作者:
Yao Yonghui
Yao Yonghui
中科院分区:
地球科学2区
文献类型:
--
作者:
Zhang Baiping;Yao Yonghui

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气候和植被的海拔梯度变化因质量海拔效应(MEE)而变得更加复杂,特别是在高而广阔的山区。然而,这种效应及其对山地海拔带的影响直到最近才得到充分研究。本文概述了过去 5 年开展的研究。 MEE 实际上是山体的加热效应,可以定义为山体内部和外部在给定海拔上的温差。可以用山内基准高程(MBE)、纬度和湿度大陆性三个因素进行数字化建模; MBE通常是MEE大小的主要因素,并且在很大程度上可以代表MEE。 MEE 导致山体内部的林线比山体外部的林线更高。它使青藏高原南部和安第斯山脉中部的山地森林在海拔4800~4900米处生长,雪线在6000米左右发育,世界上许多高山在海拔3500米以上有大片森林生长。当考虑 MEE 时,可以对全局林线的高度分布进行高精度建模,结果表明 MEE 对林线分布模式的贡献最大。如果没有MEE,森林最多只能发育到海拔3500米左右,世界生态格局就会简单得多。 MEE 的量化应通过更高分辨率的数据进一步提高,其全球影响有待进一步揭示。
The varied altitudinal gradient of climate and vegetation is further complicated by mass elevation effect (MEE), especially in high and extensive mountain regions. However, this effect and its implications for mountain altitudinal belts have not been well studied until recently. This paper provides an overview of the research carried out in the past 5 years. MEE is virtually the heating effect of mountain massifs and can be defined as the temperature difference on a given elevation between inside and outside of a mountain mass. It can be digitally modelled with three factors of intra-mountain base elevation (MBE), latitude and hygrometric continentality; MBE usually acts as the primary factor for the magnitude of MEE and, to a great extent, could represent MEE. MEE leads to higher treelines in the interior than in the outside of mountain masses. It makes montane forests to grow at 4800–4900 m and snowlines to develop at about 6000 m in the southern Tibetan Plateau and the central Andes, and large areas of forests to live above 3500 m in a lot of high mountains of the world. The altitudinal distribution of global treelines can be modelled with high precision when taking into account MEE and the result shows that MEE contributes the most to treeline distribution pattern. Without MEE, forests could only develop upmost to about 3500 m above sea level and the world ecological pattern would be much simpler. The quantification of MEE should be further improved with higher resolution data and its global implications are to be further revealed.
DOI: 10.1007/s11442-016-1303-2
发表时间: 2016-07
影响因子: 4.9
作者:
Zhang Baiping;Yao Yonghui
通讯作者: Yao Yonghui
DOI: 10.1007/978-1-4684-0468-5
发表时间: 1983-12
期刊: --
影响因子: --
作者:
Heinrich Walter
通讯作者: Heinrich Walter
DOI: --
发表时间: 2018-06
期刊: Arctic and alpine research
影响因子: --
作者:
C. Troll
通讯作者: C. Troll
DOI: 10.1111/j.1365-2435.2005.01040.x
发表时间: 2005-12-01
期刊: FUNCTIONAL ECOLOGY
影响因子: 5.2
作者:
Hoch, G;Körner, C
通讯作者: Körner, C
DOI: 10.2307/2259126
发表时间: 1979-07
期刊: Journal of Ecology
影响因子: 5.5
作者:
J. Monteith;J. Grace
通讯作者: J. Monteith;J. Grace