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A review of research on watershed water-carbon balance evolution
in a changing environment

1，2 3 3
DUAN Kai ，SUN Ge ，LIU Ning
（1. School of Civil Engineering，Sun Yat-Sen University，Guangzhou 510275，China；
2. Southern Marine Science and Engineering Guangdong Laboratory（Zhuhai），Zhuhai 519082，China；
3. Eastern Forest Environmental Threat Assessment Center，USDA Forest Service，Research Triangle Park，NC 27709，USA）

Abstract：Watershed water balance and carbon balance are intrinsically connected through the processes of
photosynthesis and evapotranspiration . Studying the coupling of water and water cycles and its response to
the changing environment is vital for understanding the watershed-level eco-hydrology processes in the back⁃
ground of global change. The findings can provide useful information and tools for evaluating ecosystem ser⁃
vices， managing water and land resources， and making adaptation plans at various scales. This paper syn⁃
thesizes current literature to illustrate the developments， challenges， and prospects for research on water⁃
shed water-carbon response to the changing environment. We specifically focus on reviewing four aspects of
the topic， including：（1） monitoring of key water-carbon cycle components；（2） coupling mechanism and
modeling of water-carbon balance；（3） disturbance of changing environment on water-carbon balance， and
（4） attribution analysis of variations in water-carbon balance.
Keywords： water-carbon coupling； watershed water-carbon balance； changing environment； research prog⁃
ress
（责任编辑：杨 虹）

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