| Effects of land remediation on soil carbon fixation |
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| DOI：10.7606/j.issn.1000-7601.2018.02.36 |
| Key Words: land remediation total organic carbon total carbon carbon fixation |
| Author Name | Affiliation | | CAO Ting-ting | Shaanxi Provinclal Land Engineering Construction Group, Xi'an, Shaanxi 710075, China
Institute of Land Engineering & Technology, Shaanxi Provincial Land Engineering Construction Group, Co. Ltd., Xi'an, Shaanxi 710075, China
Key Laboratory of Degraded and Unused Land Consolidation Engineering, Xi'an, Shaanxi 710075, China | | SUN Ying-ying | Shaanxi Provinclal Land Engineering Construction Group, Xi'an, Shaanxi 710075, China
Institute of Land Engineering & Technology, Shaanxi Provincial Land Engineering Construction Group, Co. Ltd., Xi'an, Shaanxi 710075, China
Key Laboratory of Degraded and Unused Land Consolidation Engineering, Xi'an, Shaanxi 710075, China | | HUA Dong-wen | Shaanxi Provinclal Land Engineering Construction Group, Xi'an, Shaanxi 710075, China
Institute of Land Engineering & Technology, Shaanxi Provincial Land Engineering Construction Group, Co. Ltd., Xi'an, Shaanxi 710075, China
Key Laboratory of Degraded and Unused Land Consolidation Engineering, Xi'an, Shaanxi 710075, China | | WANG Huan-yuan | Shaanxi Provinclal Land Engineering Construction Group, Xi'an, Shaanxi 710075, China
Institute of Land Engineering & Technology, Shaanxi Provincial Land Engineering Construction Group, Co. Ltd., Xi'an, Shaanxi 710075, China
Key Laboratory of Degraded and Unused Land Consolidation Engineering, Xi'an, Shaanxi 710075, China |
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| Abstract: |
| In order To explore the effect of land remediation engineering on soil carbon fixation and ecological environment, this paper analyzed the impacts on the eco-environment effects while improving the land use and patterns conditions. In This study, the effect and functions of three types of land remediation including saline soil, sandy land and loess abandoned house base on soil carbon fixation. The results showed that the total carbon content of the soil profile of these three types of land reconsolidation types was all improved. The changes of soil organic carbon content in sandy land and abandoned house base significantly affected the total carbon content of soil profile. The changes of inorganic carbon content in saline land significantly affected the total carbon content of soil profile. The three types of remediation made the carbon density of 0～100 cm soil profile improved in different degree. The change trend of total carbon content and total carbon density in saline soil and sandy land remediation was consistent. Because of the soil bulk density in waste house base, the soil carbon content in the soil profile was not consistent with the changes of the total carbon density. It can be concluded that land remediation is of great significance to increase the soil carbon storage capacity of farmland. It is helpful to study the effect of different types of land remediation on soil carbon fixation to evaluate the total stock of soil carbon pool accurately. |
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