Patterns and influencing factors of spatio-temporal variability of soil organic carbon in karst catchment | |
Zhenming Zhang; Yunchao Zhou; Shijie Wang; Xianfei Huang | |
2019 | |
Source Publication | International Journal of Global Warming
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Volume | 17Issue:1Pages:89-107 |
Abstract | The patterns of spatio-temporal variability of the soil organic carbon (SOC) stored in karst catchment were investigated, to provide a scientific basis for estimating SOC storage in karst regions and selecting technical measures for soil carbon sequestration. In this paper, field sampling, laboratory measurement, geostatistics, and geographic information system (GIS) were combined, to investigate the patterns and influencing factors of SOC’s spatio-temporal variability in Houzhai catchment from 1980 to 2015. The results showed that according to the soil samples of the entire catchment, the SOC content averaged 21.98 g/kg in 1980 and 25.07 g/kg in 2015, with an increase of 3.09 g.kg–1 (14.58%). Over the three and a half decades, SOC in this region showed weakened spatial structure, reduced correlation, and broken spatial distribution. Moreover, SOC in both periods presented a pattern of high values in the east and low values in the west, high in the periphery and low in the centre, and high in the south and low in the north. However, some local values were highly variable in embedded or block distribution. The key factors that could affect spatio-temporal variability of SOC in Houzhai catchment included the soil types, land utilisation, and major environmental factors. |
Keyword | Soil Organic Carbon Soc Temporal And Spatial Distribution Influencing Factors Small Watershed Karst |
Indexed By | SCI |
Language | 英语 |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/10941 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 1.Institute for Forest Resources and Environment of Guizhou, Guizhou University, Guiyang, 550025, China 2.Guizhou Institute of Biology, Guiyang, 550001, China 3.College of Forestry, Guizhou University, Guiyang, 550001, China 4.Puding Karst Ecosystem Research Station of Guizhou Province, Anshun, 561000, China 5.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang, 550002, China 6.Guizhou Provincial Key Laboratory for Environment, Guizhou Normal University, Guiyang, 550001, China |
Recommended Citation GB/T 7714 | Zhenming Zhang;Yunchao Zhou;Shijie Wang;Xianfei Huang. Patterns and influencing factors of spatio-temporal variability of soil organic carbon in karst catchment[J]. International Journal of Global Warming,2019,17(1):89-107. |
APA | Zhenming Zhang;Yunchao Zhou;Shijie Wang;Xianfei Huang.(2019).Patterns and influencing factors of spatio-temporal variability of soil organic carbon in karst catchment.International Journal of Global Warming,17(1),89-107. |
MLA | Zhenming Zhang;Yunchao Zhou;Shijie Wang;Xianfei Huang."Patterns and influencing factors of spatio-temporal variability of soil organic carbon in karst catchment".International Journal of Global Warming 17.1(2019):89-107. |
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