?■ 活動(dòng)簡介 ■

GeoInsider Webinar

在線講座系列第20期

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

報(bào)告人：Dr. Mengtian Huang, Chinese Academy of Meteorological Sciences 黃萌田博士,中國氣象科學(xué)研究院

時(shí)間：北京時(shí)間5月15日（周五）上午10:00

? ? ? ? ? ?加州時(shí)間5月14日（周四）晚上7:00

? ? ? ? ? ?悉尼時(shí)間5月15日（周五）中午12:00

參與方式：采用Zoom平臺(tái)，復(fù)制下方鏈接進(jìn)入平臺(tái)參會(huì)。

鏈接：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文章鏈接：https://www.nature.com/articles/s41559-019-0838-x

GeoInsider簡介

GeoInsider是一個(gè)最初由灣區(qū)的GeoScience同行自發(fā)形成的公益性交流平臺(tái)，定位在頂級(jí)的產(chǎn)學(xué)研交叉，包括PNS級(jí)講座、產(chǎn)業(yè)應(yīng)用轉(zhuǎn)化、留學(xué)Intern教職申請等交流，迄今已邀請發(fā)表過Science、Nature等高水平文章，以及來自Harvard、Berkeley等頂級(jí)機(jī)構(gòu)的Webinar報(bào)告交流。

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