Luncheon Seminar #150: Global Net Primary Productivity and Water Use Efficiency Induced by Climate Change and Increasing Atmospheric CO2 in the 20th and 21st Centuries

Abstract:

Global Terrestrial ecosystem has experienced a complex set of multiple changes in climate, atmospheric CO₂concentration, nitrogen deposition, tropical ozone, and land use and land cover change (LULCC) in the 20^thcentury, and has been projected to continue experiencing these changes through this century. Much concern has been raised regarding the impacts of climate change and increasing atmospheric CO₂on water resource and food security. However, it is short of investigation on the quantitative understanding and assessment of how Climate Change and Increasing Atmospheric CO2 Concentration have affected global Net primary Productivity (NPP), evapotranspiration (ET) and global Water Use Efficiency (WUE) in the terrestrial biosphere. By using the Dynamic Land Ecosystem Model (DLEM) driven by spatially-explicit information on climate, atmospheric CO₂concentration and other environmental changes, we assessed the spatial and temporal patterns of net primary productivity, evapotranspiration and water use efficiency across the global land surface in the past and future.

Bio：

潘淑芬教授, 美国奥本大学地理信息系统与遥感实验室主任。长期致力于自然资源和生态环境方面的研究， 应用空间大数据，卫星观测和生态模型，评估和预测自然-人类系统耦合下的全球环境及其变化。 先后主持和协调来自NASA，USDA，NOAA，DOE等不同机构的二十多项科研项目，从景观-流域-区域-全球等多尺度开展了全球变化背景下的各项研究，其研究区域跨越了亚洲，非洲及北美等许多地区，发表科研论文近100篇。潘教授目前正在主领奥本大学地理空间与环境信息学的新本科学位专业，致力发展数字地球及可持续发展方面的国际合作。