预告|GeoInsider第31期：中国植树造林与植被变绿的生物物理气候效应(1982-2011)

2020-07-29 22:12 作者:GeoInsider 0人读过 | 我要投稿

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GeoInsider Webinar

在线讲座系列第31期

题目：Biophysical climate effects of afforestation and vegetation greening in China from 1982 to 2011

报告人：Dr. Yue Li, Graduated from Peking University, now a Postdoc at University of California, Irvine

　　　　李跃博士，毕业于北京大学城市与环境学院，现为加州大学欧文分校博士后

时间：北京时间 7月31日（周五）上午10:00

　　　加州时间 7月30日（周四）晚上7:00

　　　悉尼时间 7月31日（周五）中午12:00

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Presentation Abstract

Large-area afforestation and reforestation projects have been performed in China since the 1980s. It has been reported as one of the main causes of regional carbon uptake. However, these increased forest areas, in combined with increased leaf area index—so called ‘vegetation greening’, are also expected to biophysically influence regional energy balance and hydrological cycle through reduced land surface albedo, increased evapotranspiration (ET) and surface roughness. In this talk, I will give an overview of my PhD work on applying both remote sensing data and an Earth system model to systematically assessing the biophysical role of 30-year vegetation dynamics of China under past climate change. Several key scientific questions have been addressed from the Earth system view, such as whether afforestation would cause regional hydrological drought when its feedback to rainfall is considered and to what extent the 30-year vegetation dynamics in China have mitigated climate warming both regionally and globally. In addition, I will also provide introduction to the past and current advances on theory and approach of quantifying the biophysical climate impacts of land use and land cover change.

Reference:

Li, Y., Piao, S., Chen, A., Ciais, P., & Li, L. Z. (2020). Local and teleconnected temperature effects of afforestation and vegetation greening in China. National Science Review, 7(5), 897-912. doi:10.1093/nsr/nwz132

Li, Y., Zeng, Z., Huang, L., Lian, X., & Piao, S. (2018). Comment on “Satellites reveal contrasting responses of regional climate to the widespread greening of Earth”. Science, 360(6394). doi:10.1126/science.aap7950

Li, Y., Piao, S., Li, L. Z., Chen, A., Wang, X., Ciais, P. et al. (2018). Divergent hydrological response to large-scale afforestation and vegetation greening in China. Science Advances, 4(5), eaar4182. doi:10.1126/sciadv.aar4182

Li, Y., Yang, H., Wang, T., MacBean, N., Bacour, C., Ciais, P. et al. (2017). Reducing the uncertainty of parameters controlling seasonal carbon and water fluxes in Chinese forests and its implication for simulated climate sensitivities. Global Biogeochemical Cycles, 31(8), 1344-1366. doi:10.1002/2017GB005714

Linkage：

National Science Review论文链接：https://academic.oup.com/nsr/article/7/5/897/5567451

Science Advances论文链接：https://advances.sciencemag.org/content/4/5/eaar4182?intcmp=trendmd-adv

Science评论链接：https://science.sciencemag.org/content/360/6394/eaap7950.abstract

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