[1]李红俊,高海力,周卫青,等.千岛湖生态公益林主要树种凋落物分解及碳素动态变化研究[J].浙江林业科技,2019,39(06):38-44.
 LI Hong-jun,GAO Hai-li,ZHOU Wei-qing,et al.Study on Decomposition of Litter and Carbon Dynamics of Major Tree Species in Ecological Forest of Qiandao Lake[J].Journal of Zhejiang Forestry Science and Technology,2019,39(06):38-44.
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千岛湖生态公益林主要树种凋落物分解及碳素动态变化研究()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
39
期数:
2019年06期
页码:
38-44
栏目:
出版日期:
2019-12-31

文章信息/Info

Title:
Study on Decomposition of Litter and Carbon Dynamics of Major Tree Species in Ecological Forest of Qiandao Lake
文章编号:
1001-3776(2019)06-0038-07
作者:
李红俊1高海力2周卫青1向新年1徐剑青1徐高福3
1.淳安县林业局,浙江淳安 311700;2.浙江省公益林和国有林场管理总站,浙江杭州 310020; 3.淳安县新安江生态开发集团有限公司,浙江淳安 311700
Author(s):
LI Hong-jun1GAO Hai-li2ZHOU Wei-qing1XIANG Xin-nian1XU Jian-qing1XU Gao-fu3
1. Chun’an Forestry Bureau of Zhejiang, Chun’an 311700, China; 2. Zhejiang Ecological Forest and State-Owned Forest Farm Administration, Hangzhou 310020, China; 3. Chun’an Xin’anjiang Ecological Development Company of Zhejiang, Chun’an 311700, China
关键词:
凋落物碳元素木荷青冈马尾松杉木千岛湖生态公益林
Keywords:
litter carbon Schima superba Cyclobalanopsis glauca Pinus massoniana Cunninghamia lanceolate Qiandao Lake ecological forest
分类号:
S718.55
文献标志码:
A
摘要:
采用分解袋法,对千岛湖生态公益林主要树种木荷 Schima superba,青冈 Cyclobalanopsis glauca,马尾松 Pinus massoniana和杉木 Cunninghamia lanceolata凋落物的分解速率和碳元素变化动态进行了研究。结果表明,凋落物的分解速率顺序为青冈﹥木荷﹥马尾松﹥杉木,凋落物 95%分解时间集中在 5.99 ~ 7.49 a。木荷和马尾松凋落物分解特性为先快后慢,青冈整体分解速率较快,且出现了 3个快速分解期,杉木凋落物在整个试验过程中分解速率变化不大。 4个树种凋落物的碳元素剩余率整体均呈下降趋势,但是木荷、青冈和马尾松的碳元素均存在释放停滞期,导致碳元素含量呈现“ W”型变化,而杉木碳元素含量没有明显的释放停滞期,碳元素含量阶梯式下降。表明木荷、青冈和马尾松的碳素分解可能为淋溶-富集-释放模式,杉木碳元素分解可能为淋溶-释放模式。
Abstract:
During March and April of 2016, litter from forest of Schima superba, Cyclobalanopsis glauca, Pinus massoniana and Cunninghamia lanceolata was collected in Qiandao Lake, Zhejiang province. It was air dried, put into litter bag with 10g each and placed in 3 sample plots with 20 m×20 m each to study litter decomposition and carbon change within 840 days. The results showed that litter decomposition rate was in the order of C glauca>S. superba>P. massoniana>C. lanceolata, and 95% of litter decomposed within 5.99-7.49 year. Decomposition rate of litter from S. superba and P. massoniana forest had characters of fast in the first and slow later, while that from C. glauca was relatively fast with three fast periods. The decomposition rate of litter from C. lanceolata forest had no evident change. The carbon content in litter of the four tree species decreased with decomposition duration, but that of S. superba, C. glauca and P. massoniana had lag phases during the whole process.

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备注/Memo

备注/Memo:
收稿日期:2019-04-21;修回日期:2019-09-07基金项目:浙江省重点科技创新团队项目(2011R50027)作者简介:李红俊,林业工程师,从事营林生产与公益林管理工作; E-mail:2413711077@qq.com。
更新日期/Last Update: 2019-12-30