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Position: Home > Articles > Study on the Leaf Litter Decomposition Characteristics of 10 Urban Greening Tree Species Anhui Forestry Science and Technology 2021 (6) 29-32+38

10种城市绿化树种凋落叶分解特性研究

作  者:
邵健;左睿涛;冯佳鑫;王瑞;徐劲;汪盼盼;刘华
单  位:
安徽农业大学林学与园林学院;庐江县森林保护站
关键词:
凋落叶;绿化树种;失重量;分解速率;气象因子
摘  要:
凋落叶在森林生态系统中具有重要作用,其分解动态变化对于森林生态系统中的养分均衡和物质循环有着重大的作用。为了解城市绿化树种凋落叶在城市森林生态系统中的功能,并为合肥市城市植被物质循环和养分均衡研究提供基础数据,项目组选择合肥市10种常见的城市绿化基调树种,研究其凋落叶分解的动态变化过程。结果表明,(1)10种树种凋落叶的失重率随分解时间的增加呈同步变化的趋势;(2)不同树种的凋落叶分解速率随着分解时间的延长而出现不同的变化规律;(3)凋落叶腐解系数与凋落分解时间呈多元多项式函数关系和对数关系;(4)凋落叶的分解速率与平均温度、降水量具有极显著的正相关关系(p<0.01)。
译  名:
Study on the Leaf Litter Decomposition Characteristics of 10 Urban Greening Tree Species
作  者:
SHAO Jian;ZUO Ruitao;FENG Jiaxin;WANG Rui;XU Jin;WANG Panpan;LIU Hua;Forest Conservation Station of Lujiang County;College of Forestry and Landscape Architecture, Anhui Agricultural University;
关键词:
Leaf litter;;Greening tree species;;Weight loss;;Decomposition rate;;Meteorological factors
摘  要:
Leaf litter, whose decomposition dynamics has an important role in the nutrient balance and material circulation of a forest ecosystem, is an integral part of the system. In this paper, 10 common and basic urban greening tree species were selected by the project team to study the dynamic change of the leaf litter so that the functions of leaf litter in urban forest ecosystem could be understood and basic data could be provided to study the material circulation and nutrient balance of the urban vegetation in Hefei City. The results showed:1. the weight loss rates of leaf litter from the 10 tree species indicated a synchronous trend with the increase of decomposition time; 2. the decomposition rates of leaf litter from different tree species varied with the extension of decomposition time; 3. the decomposition coefficient of leaf litter showed a multinomial functional and logarithmic relationship with the decomposition time; 4. the decomposition rate of leaf litter had an extremely significant positive correlation with the mean temperature and precipitation(p<0.01).

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