| 不同间伐强度对杉木人工林碳储量及其分配的影响 |
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| 引用本文： | 黄雪蔓,尤业明,蓝嘉川,刘世荣,贾宏炎,朱宏光,温远光.不同间伐强度对杉木人工林碳储量及其分配的影响[J].生态学报,2016,36(1):156-163. |
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| 作者姓名： | 黄雪蔓 尤业明 蓝嘉川 刘世荣 贾宏炎 朱宏光 温远光 |
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| 作者单位： | 广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 南宁 530004;广西大学林学院, 广西高校林业科学与工程重点实验室, 南宁 530004,广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 南宁 530004;广西大学林学院, 广西高校林业科学与工程重点实验室, 南宁 530004,广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 南宁 530004;广西大学林学院, 广西高校林业科学与工程重点实验室, 南宁 530004,中国林业科学研究院森林生态环境与保护研究所, 国家林业局森林生态环境重点实验室, 北京 100091,中国林业科学研究院热带林业实验中心, 凭祥 532600,广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 南宁 530004;广西大学林学院, 广西高校林业科学与工程重点实验室, 南宁 530004,广西大学林学院, 亚热带农业生物资源保护与利用国家重点实验室, 南宁 530004;广西大学林学院, 广西高校林业科学与工程重点实验室, 南宁 530004 |
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| 基金项目： | 国家科技支撑计划(2012BAD22B01);国家自然科学基金(31460121);广西重大专项计划(1222005) |
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| 摘 要： | 间伐改变了林分环境,影响林木生长及碳储量,准确评估不同间伐强度对杉木人工林生物量及碳储量的影响对碳汇林业的发展具有重要意义。2013年,以中国林业科学研究院热带林业实验中心1992年造林并于2005年实施3种不同间伐强度(74%:H、50%:M和34%:L)的杉木人工林为研究对象,样地内每木检尺,实测样木生物量,并结合杉木群落各组分含碳率的实测值,对杉木人工林的生物量和碳储量进行估算,结果表明:H(74%)显著增加了林木的胸径(P0.01),分别比M(50%)、L(34%)和CK(0%)增加了13.65%、20.74%和18.37%。3种间伐强度之间树高差异均不显著,而CK的树高均大于3种间伐强度的树高,分别比H、M和L增加了6.64%、15.73%和16.70%。与对照相比,H显著增加了林木的单株生物量(P0.01)。对照林地乔木层的碳储量均显著高于其他3种间伐强度的乔木层碳储量(P0.05),而乔木层各器官碳储量大小顺序为:树干树枝树根树皮树叶;3种间伐强度和对照处理杉木人工林之间的生态系统碳储量差异性不显著(P0.05),其中乔木层和土壤层为主要碳库,两者所占总的碳储量超过生态系统总的碳储量的97.62%。
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| 关 键 词： | 杉木人工林 间伐强度 生物量 碳储量 分配 |
| 收稿时间： | 2014/11/24 0:00:00 |
| 修稿时间： | 2015/4/29 0:00:00 |
The effect of carbon storage and its allocation in Cunninghamia lanceolata plantations with different thinning intensities |
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| HUANG Xueman,YOU Yeming,LAN Jiachuan,LIU Shirong,JIA Hongyan,ZHU Hongguang and WEN Yuanguang.The effect of carbon storage and its allocation in Cunninghamia lanceolata plantations with different thinning intensities[J].Acta Ecologica Sinica,2016,36(1):156-163. |
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| Authors: | HUANG Xueman YOU Yeming LAN Jiachuan LIU Shirong JIA Hongyan ZHU Hongguang and WEN Yuanguang |
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| Institution: | State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, College of Forestry, Guangxi University, Nanning 530004, China,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, College of Forestry, Guangxi University, Nanning 530004, China,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, College of Forestry, Guangxi University, Nanning 530004, China,State Forestry Administration, Key Laboratory of Forest Ecology and Environment, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China,Experiment Center of Tropical Forestry, Chinese Academy of Forestry, Pingxiang 532600, China,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, College of Forestry, Guangxi University, Nanning 530004, China and State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;Guangxi Colleges and Universities Key Laboratory of Forestry Science and Engineering, College of Forestry, Guangxi University, Nanning 530004, China |
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| Abstract: | The stand environment, tree growth, and carbon storage of plantations could be affected by thinning. Thus, to assess the dynamics of the forest ecosystem carbon pool, it is important to determine the changes of carbon storage in plantations after thinning.In 2013, the biomass, and carbon storage and allocation of Cunninghamia lanceolata plantations with different thinning intensities (i.e., H: 74%, M: 50%, and L: 34%) were studied using a biomass survey at the Experiment Center of Tropical Forestry of the Chinese Academy of Forestry. The results showed that the diameter at breast height (DBH) of H was significantly higher (P < 0.01) than M, L, and CK (0%), which increased by 13.65%, 20.74%, and 18.37%, respectively. There was no difference in the height of trees between the three thinning intensities; however, the height of trees in CK (0%) plots was higher than those in plots of the three thinning intensities, which increased by 6.64%, 15.73%, and 16.70%, for H, M, and L, respectively. The individual biomass with H was significantly higher (P < 0.01) than that for M, L, and CK. The carbon storage of the arbor layer in CK was significantly higher (P < 0.05) than that in the three thinning intensities, and the carbon storage in different organs was in the order: stem > branch > root > bark > leaf. There was no difference between the carbon storage of C. lanceolata plantation ecosystems with the three thinning intensities and CK plots. The arbor and soil layers were the main carbon pools, accounting for more than 97.62%. |
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| Keywords: | Cunninghamia lanceolata thinning intensity biomass carbon storage allocation |
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