| 麻栎林龄对土壤水稳性团聚体及其有机碳含量的影响 |
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| 引用本文： | 王 灿,胡海波,范 真,连经纬. 麻栎林龄对土壤水稳性团聚体及其有机碳含量的影响[J]. 土壤, 2019, 51(5): 979-985 |
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| 作者姓名： | 王 灿 胡海波 范 真 连经纬 |
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| 作者单位： | 南京林业大学南方现代林业协同创新中心，江苏省水土保持与生态修复实验室,南京林业大学南方现代林业协同创新中心，江苏省水土保持与生态修复实验室,南京林业大学南方现代林业协同创新中心，江苏省水土保持与生态修复实验室,南京林业大学南方现代林业协同创新中心，江苏省水土保持与生态修复实验室 |
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| 基金项目： | 国家林业局长江三角洲森林生态系统定位研究项目（2018-LYPT-DW-159）和江苏省高等学校林学优势学科建设项目（164010641）资助。 |
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| 摘 要： | 为了解林龄对土壤团聚体及其有机碳含量的影响,探求各级团聚体中碳含量与团聚体稳定性之间的关系,以17、26和65 a的麻栎人工林为对象,研究了林地0～40 cm土壤水稳性团聚体组成、团聚体水稳定性以及各级团聚体有机碳含量的变化规律和相互关系。结果表明:①林龄对土壤团聚体组成及其水稳定性影响显著,影响效果随林龄增加而增强,随土层加深而减弱;②林龄对土壤团聚体有机碳含量影响显著,影响程度随林龄增加而增强;③0.25 mm土壤团聚体有机碳含量与各级土壤有机碳含量密切相关,也是影响团聚体水稳定性的主要因素。
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| 关 键 词： | 土壤团聚体；有机碳；稳定性；麻栎 |
| 收稿时间： | 2017-12-16 |
| 修稿时间： | 2018-03-12 |
Effects of Quercus Acutissima Age on Composition and Organic Carbon Content of Soil Water-stable Aggregates |
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| WANG Can,HU Haibo,FAN Zhen and LIAN Jingwei. Effects of Quercus Acutissima Age on Composition and Organic Carbon Content of Soil Water-stable Aggregates[J]. Soils, 2019, 51(5): 979-985 |
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| Authors: | WANG Can HU Haibo FAN Zhen LIAN Jingwei |
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| Affiliation: | Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Laboratong of Soil ang Water Conservation and Ecological Restortion in Jiangsu Province,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Laboratong of Soil ang Water Conservation and Ecological Restortion in Jiangsu Province,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Laboratong of Soil ang Water Conservation and Ecological Restortion in Jiangsu Province and Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Laboratong of Soil ang Water Conservation and Ecological Restortion in Jiangsu Province |
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| Abstract: | In order to further understand the effects of Quercus acutissima age on soil aggregates and their organic carbon contents and explore the relationship between aggregate stabilities and carbon contents in aggregates of different sizes, artificial Quercus acutissima forests of 17, 26 and 65 a were selected to investigate water-stable aggregate composition, aggregate water stability, and changes and correlations of organic carbon contents in different size aggregates in 0-40 cm depth. The results showed that forest age had a significant effect on the composition and water stability of soil aggregates, and the effect increased with the increase of forest age but decreased with the increase of soil depth; Forest age also had a significant effect on organic carbon contents in soil aggregates, and the effect increased with the increase of forest age; Organic carbon content in <0.25 mm aggregates had an important effect on soil organic carbon contents in aggregates in different sizes, and is the main factor affecting water stability of soil aggregates. |
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| Keywords: | Soil aggregate Organic carbon Stability Quercus acutissima |
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