| Autor: |
Xiao Dong, Jiang, Si Rui, Zheng, Mi Mi, Yang, Jia Ming, Wan, Yue, Huang, Ke, Yu, Xiao Gang, Tong |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Ying yong sheng tai xue bao = The journal of applied ecology. 30(8) |
| ISSN: |
1001-9332 |
| Popis: |
The study aimed to reveal the cumulative effects and stability characteristics of soil organic carbon (SOC) during forest development at the Mu Us sandy land, China. Using space for time substitution, surface soil samples were collected from semi-fixed sandy lands and restored arbor and shrub lands with the ages of 22, 32 and 53 years in the Yulin sand control region in Northern Shaanxi Province. The content of total organic carbon (TOC), oxidizable labile organic carbon, and resistant carbon and the characteristics of mineralized carbon emission and decomposition ratio were analyzed. The results showed that the increment of TOC for 22 to 53 years shrub and arbor lands from resistant carbon were 3.5-6.2 g·kg为揭示固沙林发育过程中土壤固碳效应与有机碳库稳定性特征,基于时空替代法,采集陕北毛乌素沙地治沙区从半固定沙地到林龄分别为22、32、53年乔木和灌木林地表层土壤,分析了土壤总有机碳、氧化活性碳和惰性有机碳含量,以及矿化碳排放、分解比例的变异特征.结果表明: 相比半固定沙地,22～53年灌木和乔木林土壤总有机碳增幅来自惰性碳,分别为3.5～6.2和3.2～7.7 g·kg |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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