Heavy thinning reduces soil organic carbon: Evidence from a 9-year thinning experiment in a pine plantation
文献类型：期刊论文
| 作者 | Yang, Lu3; Wang, Jinsong1; Geng, Yan3; Niu, Shuli1; Tian, Dashuan1; Yan, Tao4; Liu, Weiguo2; Pan, Junxiao1; Zhao, Xiuhai3; Zhang, Chunyu3 |
| 刊名 | CATENA
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 211页码:9 |
| 关键词 | Thinning Soil organic carbon Physical fraction Chemical composition Soil nutrients |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2021.106013 |
| 通讯作者 | Zhang, Chunyu(chunyu_zhang@bjfu.edu.cn) |
| 英文摘要 | Forest thinning is a common forest management practice and has complex effects on soil organic carbon (SOC). However, the mechanisms underlying SOC and its components (physical fractions and chemical compositions) in response to forest thinning remain poorly understood. Four thinning treatments including control (CK with no thinning), light thinning (20% of basal area removed, LT), moderate thinning (40% of basal area removed, MT), and heavy thinning (60% of basal area removed, HT) were applied in a pine plantation. After nine years of thinning, SOC physical fractions and chemical compositions, soil heterotrophic respiration, plant biomass, soil properties, soil microbial biomass, and soil enzyme activity were measured. The results showed that HT significantly reduced SOC by an average of 39.15% relative to CK, which was likely due to the decreases in litter production, soil nutrients, and fine root biomass. Compared with CK, HT significantly reduced particulate organic carbon (POC), which was correlated with the decreases in soil nutrients and microbial biomass nitrogen. Moreover, MT and HT significantly reduced the percentage of alkyl-C and alkyl-C: O alkyl-C, whereas only HT increased the percentage of labile functional group of O alkyl-C. The changes in SOC chemical compositions were related to plant biomass and the decomposition of soil labile organic matter. Collectively, combining SOC fractions, plant biomass, and microbial decomposition could provide a comprehensive understanding of SOC dynamics in response to thinning in managed forests. We recommend that less than 60% thinning intensity would be reasonable in view of increasing forest productivity and maintaining soil organic carbon. |
| WOS关键词 | LOESS PLATEAU ; FOREST ; MATTER ; RESPIRATION ; RESPONSES ; DYNAMICS ; HARVEST ; COMPONENTS ; VEGETATION ; INTENSITY |
| 资助项目 | Program of National Natural Science of China[31971650] ; Key Project of National Key Research and Development Plan[2017YFC0504005] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000790443800001 |
| 出版者 | ELSEVIER |
| 资助机构 | Program of National Natural Science of China ; Key Project of National Key Research and Development Plan |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/175829]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Chunyu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Northwest Agr & Forestry Univ, Coll Forestry, Ctr Ecol Forecasting & Global Change, Yangling 712100, Shaanxi, Peoples R China 3.Beijing Forestry Univ, Res Ctr Forest Management Engn, State Forestry & Grassland Adm, Beijing 100083, Peoples R China 4.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Key Lab Grassland & Agroecosyst, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Lu,Wang, Jinsong,Geng, Yan,et al. Heavy thinning reduces soil organic carbon: Evidence from a 9-year thinning experiment in a pine plantation[J]. CATENA,2022,211:9. |
| APA | Yang, Lu.,Wang, Jinsong.,Geng, Yan.,Niu, Shuli.,Tian, Dashuan.,...&Zhang, Chunyu.(2022).Heavy thinning reduces soil organic carbon: Evidence from a 9-year thinning experiment in a pine plantation.CATENA,211,9. |
| MLA | Yang, Lu,et al."Heavy thinning reduces soil organic carbon: Evidence from a 9-year thinning experiment in a pine plantation".CATENA 211(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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