Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations
文献类型：期刊论文
| 作者 | Chen, XL; Chen, HYH; Chen, X; Wang, J; Chen, B; Wang, D; Guan, QW; Guan, QW (reprint author), Nanjing Forestry Univ, Coll Biol & Environm, Dept Ecol, Nanjing 210037, Jiangsu, Peoples R China. |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 107页码:162-169 |
| 关键词 | Microbial Biomass Carbon Easily Oxidizable Carbon B-glucosidase Invertase Thinning |
| DOI | 10.1016/j.apsoi1.2016.05.016 |
| 产权排序 | 7 |
| 文献子类 | Article |
| 英文摘要 | Thinning is a silvicultural tool that is used to facilitate the growth of timber plantations worldwide. Plantations are important CO2 sinks, but the mechanism by which thinning affects the quantity and stability of soil organic carbon (SOC) is poorly understood. In this study, we examined the effects of different thinning intensities (low-intensity thinning treatment with 30% of the trees removed; high intensity thinning treatment with 70% of the trees removed; control treatment without tree removal) on the quantity and stability of SOC in Chinese fir (Cunninghamia lanceolate [Lamb.] Hook) plantations in southeastern China. The amounts of SOC, microbial biomass carbon (MBC), easily oxidizable carbon (EOC), cold-water-soluble organic carbon (CWSOC) and hot-water-extractable organic carbon (HWEOC) and the carbon-cycle -related enzyme activities (p-glucosidase, invertase and cellulose) were quantified. We found that thinning significantly decreased the amount of SOC compared with the control treatment, but the effect differed by sampling date. The MBC and EOC were significantly higher in the high-intensity thinning treatment than in the control and low-intensity thinning treatments, whereas the invertase and P-glucosidase activities were significantly higher in the control treatment. However, the amounts of CWSOC, HWEOC and cellulose activity did not differ among the treatments, which indicates that the MBC, EOC and the activities of invertase and p-glucosidase were better indicators of changes in SOC to thinning. In addition, the MBC, EOC, CWSOC and the p-glucosidase and cellulase activities peaked in the warmer months. Our results indicate that thinning treatments in Chinese fir plantations decreased the SOC quantity and enzyme activities and that high-intensity thinning may lead to an increase of labile SOC. (C) 2016 Elsevier B.V. All. rights reserved. |
| 学科主题 | Agriculture |
| 资助项目 | Chen, Han/0000-0001-9477-5541 |
| 项目编号 | Chen, Han/A-1359-2008 |
| 语种 | 英语 |
| 资助机构 | National Basic Research Program of China [2012CB416904] ; National Basic Research Program of China [2012CB416904] ; National Basic Research Program of China [2012CB416904] ; National Basic Research Program of China [2012CB416904] |
| 源URL | [http://210.75.237.14/handle/351003/28097]  |
| 专题 | 成都生物研究所_生态研究 |
| 通讯作者 | Guan, QW (reprint author), Nanjing Forestry Univ, Coll Biol & Environm, Dept Ecol, Nanjing 210037, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Chen, XL,Chen, HYH,Chen, X,et al. Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations[J]. APPLIED SOIL ECOLOGY,2016,107:162-169. |
| APA | Chen, XL.,Chen, HYH.,Chen, X.,Wang, J.,Chen, B.,...&Guan, QW .(2016).Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations.APPLIED SOIL ECOLOGY,107,162-169. |
| MLA | Chen, XL,et al."Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations".APPLIED SOIL ECOLOGY 107(2016):162-169. |
入库方式： OAI收割
来源：成都生物研究所
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