N and P fertilization reduced soil autotrophic and heterotrophic respiration in a young Cunninghamia lanceolata forest
文献类型：期刊论文
| 作者 | Wang, QK; Zhang, WD; Sun, T; Chen, LC; Pang, XY; Wang, YP; Xiao, FM; Wang, QK (reprint author), Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Huitong Expt Stn Forest Ecol, Shenyang 110164, Peoples R China. |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 232期号:2017页码:66-73 |
| 关键词 | Soil Co2 Efflux Root Trenching Fertilization Cunninghamia Lanceolata |
| DOI | 10.1016/j.agrformet.2016.08.007 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Understanding the response of heterotrophic (Rh) and autotrophic (Ra) components of soil respiration (Rs) to fertilization is important to evaluate the effects of management practices on soil carbon cycling in plantation forest ecosystems. Therefore, we investigated Ra and Rh using a trenching method in a young Cunninghamia lanceolate plantation, subjected to N and P fertilization in subtropical China. Soil CO2 efflux was measured from.December 2013 to November 2015. Mean annual Rs, Ra, and Rh rates decreased on average by 18.6%, 23.6%, and 17.1% after fertilization. The contribution of Rh to Rs ranged from 70.9% to 76.7%. This contribution was greater in P-fertilized plots, suggesting that fertilization changed the contribution of Rh and Ra to Rs. The reduced rate of Rh induced by fertilization contributed on average 66.9% to the decrease in Rs rate. This contribution for Rh was higher in NP-fertilized plots than in other plots Based on a bivariate model, 51.2%-69.3% and 53.6%-66.7% of the variations in Rs and Rh among different treatments were explained by soil temperature and moisture. However, temperature sensitivity of Rs and Rh were not affected by fertilization. Ra and Rh were positively related to fine root biomass. Rh was also positively related to soil organic C, dissolved organic C, and microbial biomass C, but negatively related to soil mineral N content. Our results highlight the importance of fertilization on soil CO2 efflux and its significance to the estimation of forest C sink potential. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 资助项目 | Chen, Long-Chi/D-9983-2017 |
| 语种 | 英语 |
| 资助机构 | This work was supported by the National Basic Research Program of China (Grant no. 2012CB416905), the Ministry of Science and Technology of the People's Republic of China (Grant no. 2016YFA0600801), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant no. XDB15010301), and the National Natural Science Foundation of China (Grant no. 31570466). We appreciate the assistance of Silong Wang, Qingpeng Yang, Xiuyong Zhang, Zhengqi Shen, Bing Fan and Shijian Deng during establishing experiment and the help of Tongxin He, Yanpeng Li, Ke Huang and Guangbiao Xu for soil CO |
| 源URL | [http://210.75.237.14/handle/351003/29160]  |
| 专题 | 成都生物研究所_生态研究 |
| 通讯作者 | Wang, QK (reprint author), Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Huitong Expt Stn Forest Ecol, Shenyang 110164, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, QK,Zhang, WD,Sun, T,et al. N and P fertilization reduced soil autotrophic and heterotrophic respiration in a young Cunninghamia lanceolata forest[J]. AGRICULTURAL AND FOREST METEOROLOGY,2017,232(2017):66-73. |
| APA | Wang, QK.,Zhang, WD.,Sun, T.,Chen, LC.,Pang, XY.,...&Wang, QK .(2017).N and P fertilization reduced soil autotrophic and heterotrophic respiration in a young Cunninghamia lanceolata forest.AGRICULTURAL AND FOREST METEOROLOGY,232(2017),66-73. |
| MLA | Wang, QK,et al."N and P fertilization reduced soil autotrophic and heterotrophic respiration in a young Cunninghamia lanceolata forest".AGRICULTURAL AND FOREST METEOROLOGY 232.2017(2017):66-73. |
入库方式： OAI收割
来源：成都生物研究所
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