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| 采伐剩余物管理方式对人工林土壤黑碳和黑氮的影响 | |
| 引用本文： | 姜丹,何宗明,尹云锋,范少辉,黄志群,万晓华.采伐剩余物管理方式对人工林土壤黑碳和黑氮的影响[J].亚热带资源与环境学报,2014(3):68-74. |
| 作者姓名： | 姜丹 何宗明 尹云锋 范少辉 黄志群 万晓华 |
| 作者单位： | 1. 湿润亚热带山地生态国家重点实验室培育基地，福州350007; 福建师范大学地理科学学院，福州350007 2. 福建农林大学林学院,福州,350002 3. 国际竹藤网络中心,北京,100102 |
| 基金项目： | 国家自然科学基金资助项目，教育部科学技术研究项目，国际林业研究中心(Center for International Forestry Research ， CIFOR)国际合作项目 |
| 摘 要： | 黑碳（Black carbon,BC）是土壤惰性碳库的重要组成部分,在土壤碳循环中发挥着关键作用,而黑氮（Black nitrogen,BN）同样对碳封存具有重要作用。本研究以15年生杉木人工林为对象,采用化学氧化法研究2种采伐剩余物管理方式（炼山和保留采伐剩余物）对杉木人工林表层土壤（0~10 cm）BC和BN含量及储量的影响。结果表明,5次采样年份,炼山和保留采伐剩余物的BC平均含量分别为2.99~3.70 g/kg和3.52~4.36 g/kg,储量分别为3.24 t/hm^2和3.87 t/hm^2;炼山和保留采伐剩余物的BN平均含量均为0.12 g/kg,储量分别为0.12 t/hm2和0.11 t/hm^2。方差分析表明,2种采伐剩余物管理方式下的土壤BC和BN含量以及储量年际差异均不显著（P〉0.05）。由此可见,采伐剩余物管理方式对杉木人工林土壤BC和BN的长期效应并不显著。 |
| 关 键 词： | 黑碳 黑氮 杉木人工林 采伐剩余物管理方式 |
Effects of Harvest Residue Management on Black Carbon and Black Nitrogen in Plantation Soil |
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| JIANG Dan,HE Zong-ming,YIN Yun-feng,FAN Shao-hui,HUANG Zhi-qun,WAN Xiao-hua.Effects of Harvest Residue Management on Black Carbon and Black Nitrogen in Plantation Soil[J].Journal of Subtropical Resources and Environment,2014(3):68-74. | |
| Authors: | JIANG Dan HE Zong-ming YIN Yun-feng FAN Shao-hui HUANG Zhi-qun WAN Xiao-hua |
| Institution: | JIANG Dan, HE Zong-ming, YIN Yun-feng, FAN Shao-hui, HUANG Zhi-qun, WAN Xiao-hua ( 1. Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China; 2. College of Geographical Science, Fujian Normal University, Fuzhou 350007, China; 3. Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 4. International Center for Bamboo and Rattan, Beijing 100102, China) |
| Abstract: | The objective of this study is to investigate the long-term effects of harvest residue management（burning residue and stem only harvest） on black carbon（BC） and black nitrogen（BN） in the topsoil（0 ~ 10 cm） of Chinese fir plantation.Soil samples were collected in 3,6,9,12 and 15 years after tree replanting and the chemical oxidation method was applied to quantify BC and BN in samples.The results showed that the BC contents ranged from 2.99 to 3.70 g / kg under burning residue treatment and 3.52 to 4.36 g / kg under stem only harvest treatment,and the BN contents of both burning residue and stem only harvest treatments were 0.12 g / kg.Soil BC stocks of burning residue treatmentand stem only harvest treatment were 3.24 t / hm^2 and 3.87 t / hm^2,and the BN stocks were 0.12 t/hm^2 and 0.11 t / hm^2,respectively.There were no significant differences in the contents and stocks of BC and BN at any sampling year for two treatments（P 〉0.05）.These observations suggested that the long-term effects of harvest residue management on the contents and stocks of BC and BN in Chinese fir plantation were not significant. |
| Keywords: | black carbon black nitrogen Chinese fir plantation harvest residue management |
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