Abstract
Daxing’anling Mountain, in the northeastern part of China, contains a large amount of soil organic carbon (SOC). Using data including topography, climate, and vegetation, the spatial distribution of SOC content was modeled using classical and geography-based statistics, as well as a geographically weighted kriging model. The study findings include: (1) SOC content generally ranges 40–70 g/kg, with high SOC content in the southwest and low SOC content in the southeast; (2) Results of principal component analysis suggested the normalized difference vegetation index is the best predictor of patterns in SOC; and (3) The geo-weighted regression Kriging model well reflects factors influencing spatial distribution of SOC content. This study provides important baseline information for environmental protection in the Daxing’anling Mountain area, as well as general information as to important factors that mediate this important reservoir of soil carbon.
Highlights
Daxing’anling Mountain, in the northeastern part of China, contains a large amount of soil organic carbon (SOC)
Studies have shown that half of the global SOC is in frozen s oil[5] and a large amount of soil is stored in permafrost regions
We studied factors influencing the spatial distribution of SOC and the main factors controlling it in the Daxing’anling Mountain range
Summary
Daxing’anling Mountain, in the northeastern part of China, contains a large amount of soil organic carbon (SOC). This study provides important baseline information for environmental protection in the Daxing’anling Mountain area, as well as general information as to important factors that mediate this important reservoir of soil carbon. Studies have shown that half of the global SOC is in frozen s oil[5] and a large amount of soil is stored in permafrost regions. Frozen soil is mainly permafrost at high latitudes It contains a key state-owned natural forests area and contains a large amount of soil organic carbon. The geographic coordinates are 121°12′–127°00′ E, 50°10′–53°33′ N14 and the total area is 8.35 million k m215,the east–west length is greater than the north–south expanse It is mainly composed of middle-lower mountains and tundra that are higher in the northeast and lower in the northwest.
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