CO2 flux of soil respiration in natural recovering karst abandoned farmland in Southwest China
CO2 flux of soil respiration in natural recovering karst abandoned farmland in Southwest China
复制标题
西南地区喀斯特废弃农田自然恢复土壤呼吸CO2通量
DOI：
10.1007/s11631-019-00389-z
复制
发表时间：
2020-01
期刊：
影响因子：
1.6
通讯作者：
Shijie Wang
中科院分区：
文献类型：
--
作者：
Yanwei Wang;Weijun Luo;Guangneng Zeng;Hanling Yang;Meifang Wang;Yina Lyu;Anyun Cheng;Lin Zhang;Xianli Cai;Jia Chen;Shijie Wang
为估算喀斯特地区土壤固碳潜力，对贵州普定沙湾自然恢复喀斯特弃耕地土壤呼吸进行了两年多的连续自动监测。结果表明，在相似条件下，岩溶区土壤呼吸CO2通量（2.63 ± 1.89 μmol m−2 s−1）高于非岩溶区，但由于碎石覆盖度较大（~ 50%），区域值（1.32 μmol m−2 s−1）较低。同时，研究区土壤呼吸（Q10）的温度敏感性显著高于相似条件下的非岩溶区。土壤呼吸具有明显的时间变化性，表现为土壤呼吸与土壤温度呈显著的指数关系，而与土壤水分的关系非常复杂。特别是土壤呼吸具有明显的空间变异性，可能受不同的扩散或水岩反应过程的影响。
To estimate carbon sequestration potential in the karst area, soil respiration in a natural recovering karst abandoned farmland in Shawan, Puding, Guizhou, southwest China was continuously and automatically monitored for more than two years. The results show that the CO2 flux of soil respiration (2.63 ± 1.89 μmol m−2 s−1) is higher in the karst area than in non-karst areas under similar conditions but that regional value (1.32 μmol m−2 s−1) is lower because of larger rock fragment coverage (~ 50 %). At the same time, the temperature sensitivity of soil respiration (Q10) in this study area is significantly higher than that of non-karst areas under similar conditions. Soil respiration has an obvious temporal variation, which is reflected in a significant exponential relationship between soil respiration and soil temperature, but the relationship between soil respiration and soil moisture is very complex. Especially, soil respiration has an obvious spatial variation, which is likely affected by different diffusion or water–rock reaction processes.
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DOI：
10.11867/j.issn.1001-8166.2005.07.0778
发表时间：
2005-07
期刊：
Advance in Earth Sciences
影响因子：
--
作者：
Zhang Dong-qiu;Shi Peili;Zhang Xianzhou
通讯作者：
Zhang Dong-qiu;Shi Peili;Zhang Xianzhou
DOI：
--
发表时间：
2013
期刊：
Journal of Nanjing Forestry University
影响因子：
--
作者：
Zhu Jun
通讯作者：
Zhu Jun
影响因子：
6.2
作者：
Peng, Tao;Wang, Shi-jie
通讯作者：
Wang, Shi-jie
影响因子：
3.1
作者：
Jiang Zhongcheng;Y. Dao-xian
通讯作者：
Jiang Zhongcheng;Y. Dao-xian
影响因子：
1.8
作者：
Zhenming Zhang;Yunchao Zhou;Shijie Wang;Xianfei Huang
通讯作者：
Zhenming Zhang;Yunchao Zhou;Shijie Wang;Xianfei Huang