[1]丁山,宋思婧,庞春梅,等.天目山3种类型森林的叶凋落量及动态特征[J].浙江林业科技,2023,43(05):19-26.[doi:10.3969/j.issn.1001-3776.2023.05.003]
 DING Shan,SONG Sijing,PANG Chunmei,et al.Amount and Dynamics of Leaf Litter in Three Types of Forest in Tianmushan National Nature Reserve[J].Journal of Zhejiang Forestry Science and Technology,2023,43(05):19-26.[doi:10.3969/j.issn.1001-3776.2023.05.003]
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天目山3种类型森林的叶凋落量及动态特征()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
43
期数:
2023年05期
页码:
19-26
栏目:
出版日期:
2023-09-28

文章信息/Info

Title:
Amount and Dynamics of Leaf Litter in Three Types of Forest in Tianmushan National Nature Reserve
文章编号:
1001-3776(2023)05-0019-08
作者:
丁山1宋思婧1庞春梅2王通1郑枭1余树全1
1.浙江农林大学 林业与生物技术学院,浙江 杭州 311300;2.浙江天目山国家级自然保护区管理局,浙江 杭州 311311
Author(s):
DING Shan1SONG Sijing1PANG Chunmei2WANG Tong1ZHENG Xiao1YU Shuquan1
1.College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China;2.Tianmushan National Nature Reserve Administration of Zhejiang, Hangzhou 311311, China
关键词:
天目山森林类型叶凋落量凋落动态林分特征
Keywords:
Tianmushan National Nature Reserve forest type leaf litter litter dynamics stand property
分类号:
S718.55+4.2
DOI:
10.3969/j.issn.1001-3776.2023.05.003
文献标志码:
A
摘要:
为了解天目山森林的落叶规律,本文采用凋落物收集法,比较天目山常绿阔叶林、常绿落叶阔叶林和落叶阔叶林的年叶凋落量、叶凋落量动态和主要树种的落叶节律,分析其与森林林分特征的相关关系。结果表明:(1)天目山常绿阔叶林、常绿落叶阔叶林和落叶阔叶林的年叶凋落量分别为4219.49kg·hm-2、4591.58kg·hm-2和4262.13kg·hm-2;3种森林的叶凋落量月动态均表现为双峰型,且变化趋势相似,第一个凋落高峰均出现在10月,第二个峰值均在次年4月。(2)3种森林内主要树种落叶节律可分为单峰型、双峰型和不规则型,不同树种的落叶高峰期存在差异。(3)常绿阔叶林优势树种叶凋落量与树种总断面积极显著正相关(P<0.01);常绿落叶阔叶林优势树种叶凋落量与树种密度、树高、树冠面积极显著正相关(P<0.01);落叶阔叶林优势树种叶凋落量与树种总断面积极显著正相关(P<0.01)。以上研究结果可为天目山森林保护与管理提供参考,也为区域及全国尺度上的凋落量研究提供数据基础。
Abstract:
In January 2018, 3 sample plots with 100 m×100 m were established in evergreen broadleaved forest (EF), evergreen deciduous broadleaved forest (MF) and deciduous broadleaved forest (DF) in Zhejiang Tianmushan National Nature Reserve. Determinations were carried out on DBH, tree height, clear bole height, crowd diameter and species. In September 2018, 9 litter collectors were placed in each plots, and were gathered each two weeks till September 2019, with totally 24 times. The results showed that the annual leaf litter of EF, MF, DF was 4 219.49, 4 591.58 and 4 262.13 kg/ha, the monthly dynamics of leaf litter showed a bimodal pattern, and the trend of change was similar. The first peak of leaf litter occurred in October, and the second one in the next April. The defoliation rhythm of main tree species in the three types of forest could be divided into single peak type, double peak type and irregular type, with different peak periods. Leaf litter of dominant tree species in EF had extremely significant positive relation with the total basal area of tree species, that in MF had extremely positive relation with tree density, height and crown diameter, and that in DF had extremely significant positive relation with the total basal area of tree species.

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备注/Memo

备注/Memo:
收稿日期:2023-04-19;修回日期:2023-08-07作者简介:丁山,硕士研究生,从事森林生态学研究;E-mail: 1498152687@qq.com。通信作者:余树全,博士,教授,从事森林生态恢复和生态规划研究;E-mail: yushuq@zafu.edu.cn。且还对涵养水源和水土保持具有重要意义[1],其组成通过凋落物质量和动态影响物质循环效率、养分返还速率和凋落物分解。森林凋落量是单位时间单位面积上林地所有凋落物的总量,能间接反映森林生态系统的初级生产力水平[2-3]。随着全球气候的进一步变暖,气温上升增加了森林凋落物产量,从而增加了森林生态系统的生物量,进而影响到森林生态系统的初级生产力水平[4]。因此,了解森林的凋落物产量对于了解森林生态系统中的养分可用性和生产力非常重要[5]
更新日期/Last Update: 2023-09-30