%0 Journal Article
%A CHENG  Xue-jun
%A FU  Chong-qing
%A XIAO  Xiao
%A ZHANG  Shuang-yin
%A XU  Jian
%A ZHENG  Hang
%A LIAO  Mao-xin
%T Drivers for Carbon Variation of River in Three Gorges Reservoir Area
%D 2024
%R 10.11988/ckyyb.20230911
%J Journal of Changjiang River Scientific Research Institute
%P 66-72
%V 41
%N 12
%X <p id="p00015">Understanding the impact of land use and landscape patterns on river carbon cycling is crucial for improving the watershed environment. This study utilized the landscape index method, redundancy analysis (RDA), and Pearson correlation analysis to analyze the effects of landscape factors on river carbon cycling in the Three Gorges Reservoir area. The findings reveal that: 1) Within a buffer zone scale of 1 500 m, the land use and landscape patterns have a substantial impact on the concentration of dissolved carbon in water and the fluxes of CO<sub>2</sub> and CH<sub>4</sub> at the water-air interface. 2) The dissolved carbon within the 1 500 m buffer zone is influenced by several key variables, including built-up land, and forest land. For CO<sub>2</sub> and CH<sub>4</sub> fluxes at the water-air interface, influential variables include built-up land, forest land, grassland, arable land, bare land, Shannon’s diversity index (SHDI), and patch richness density (PRD).</p>
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20230911