前沿 | GeoInsider在线讲座第20期：全球不同类型植被生产力的最优空气温度

2020-05-14 20:33 作者:GeoInsider 0人读过 | 我要投稿

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GeoInsider Webinar

在线讲座系列第20期

题目：Air temperature optima of vegetation productivity across global biomes, Nature Ecology & Evolution paper

报告人：Dr. Mengtian Huang, Chinese Academy of Meteorological Sciences 黄萌田博士,中国气象科学研究院

时间：北京时间5月15日（周五）上午10:00

加州时间5月14日（周四）晚上7:00

悉尼时间5月15日（周五）中午12:00

参与方式：采用Zoom平台，复制下方链接进入平台参会。

链接：https://tamu.zoom.us/j/95246134015

Presentation Abstract

The global distribution of the optimum air temperature for ecosystem-level gross primary productivity is poorly understood, despite its importance for ecosystem carbon uptake under future warming. We provide empirical evidence for the existence of such an optimum, using measurements of in situ eddy covariance and satellite-derived proxies, and report its global distribution. The ecosystem-scale air temperature optima of vegetation productivity is consistently lower than the physiological optimum temperature of leaf-level photosynthetic capacity, which typically exceeds 30 °C. The global average this temperature optima is estimated to be 23 ± 6 °C, with warmer regions having higher values than colder regions. In tropical forests, in particular, the optimal temperature of vegetation productivity is close to growing-season air temperature and is projected to fall below it under all scenarios of future climate, suggesting a limited safe operating space for these ecosystems under future warming.

Linkage:

NEE文章链接：https://www.nature.com/articles/s41559-019-0838-x

GeoInsider简介

GeoInsider是一个最初由湾区的GeoScience同行自发形成的公益性交流平台，定位在顶级的产学研交叉，包括PNS级讲座、产业应用转化、留学Intern教职申请等交流，迄今已邀请发表过Science、Nature等高水平文章，以及来自Harvard、Berkeley等顶级机构的Webinar报告交流。

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