Dr Xie's current research focuses on surface-water/groundwater interactions and soil-vegetation-atmosphere transfer processes and their impacts on carbon transport and evasion. For sustainable water resources utilisation, it is critical to accurately quantify exchange rates between groundwater and surface water and groundwater recharge rates. This demands proper understanding of flow processes at the surface-water/groundwater interface and within soil-vegetation-atmosphere continuum. Water flow also transports solutes apart from distributing water resources. This process plays a significant role in the carbon cycle. Under the pressing changes in the climate and global population, we must understand how fast terrestrial carbon is delivered to the atmosphere through water bodies as well as the land surface. This will provide robust scientific support on mitigating environmental changes. Dr Xie's research can be described with the following diagram. Solid arrows and rectangles indicate processes that Dr Xie is dedicated to working on.

Ongoing Research Projects
NSFC grant (No.41807185): Investigation of river-aquifer interactions during rain seasons in headwater catchments, 250,000 Yuan, 2019-2021
NSFC grant (No.41972246): Impacts of groundwater flow on dissolved inorganic carbon transport in non-karstic headwater catchments, 650,000 Yuan, 2020-2023
National Key R&D Program of China grant (No.2019YFC1804803): Methods for groundwater contamination risk analysis and safety assessment, 1,440,000 Yuan, 2020-2022
Jiangsu Distinguished Professor Fund: Groundwater/surface-water interactions in Lower Yangtze River Watershed, 2,000,000 Yuan, 2020-2022
NJU Start-up Fund: River-aquifer interaction and its effect on ecohydrological processes, 1,000,000 Yuan, 2018-2021