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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sun, Junna Zhang, Zhenhua Shao, Hongbo Xu, Gang He, Fuhong |
| Description | Country affiliation: China Author Affiliation: Sun J ( School of Life Science, Ludong University, Yantai 264025, China.); He F ( Institute of Geography & Planning, Ludong University, Yantai 264025, China.); Zhang Z ( Institute of Geography & Planning, Ludong University, Yantai 264025, China. Electronic address: zhangzh71@163.com.); Shao H ( Institute of Agro-biotechnology, Jiangsu Academy of Agriculture Sciences, Nanjing 210014, China); Xu G ( Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.) |
| Abstract | This study assessed the effects of temperature and moisture on carbon mineralization (Cmin) in a saline soil system with biochar amendment. The dynamics of Cmin were monitored in a biochar-amended saline soil for 220days by incubation experiments under different conditions of temperature (15°C, 25°C and 35°C) and moisture (30%, 70% and 105% of the water-holding capacity). Results showed that as the incubation temperature rose, cumulative Cmin consistently increased in soil added with 0-4% biochar. The two-compartment model could well describe the dynamics of Cmin. The temperature rise increased the concentration of labile C in soil, but reduced the turnover time of labile and recalcitrant C pools and the value of temperature coefficient Q10. The response of Cmin to moisture was varying in soil amended with different levels of biochar. In the control treatment (soil alone), cumulative Cmin increased only when soil moisture was >105%. In the biochar treatments, however, 70% of water-holding capacity was optimal for Cmin, except for 2%-biochar treatment at 35°C. The findings highlight the necessity to consider the combined effects of soil moisture, temperature and the amount of biochar added for assessing Cmin in biochar-amended saline soils. |
| ISSN | 00489697 |
| Journal | Science of The Total Environment |
| Volume Number | 569-570 |
| e-ISSN | 18791026 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-11-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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