长沙市4种人工林林下植被生物量及分布格局研究

林业资源管理 ›› 2010, Vol. 0 ›› Issue (3): 49-53.

长沙市4种人工林林下植被生物量及分布格局研究

陈彩虹

中南林业科技大学,长沙 410004

收稿日期:2009-11-29 修回日期:2010-03-22 发布日期:2020-12-14
作者简介:陈彩虹(1968-),女,湖南邵东人,副教授,博士,主要从事森林土壤和土地资源管理方面的研究。Email:shejiyun@126.com
基金资助:
湖南省科技计划项目(2006NK3104);长沙市科技计划项目(k0803222-21)

Study on the Biomass and Distribution Pattern of Undergrowth Vegetation in Four Types of Planted Forests in Changsha

CHEN Caihong

Central South University of Forestry and Technology, Changsha 410004, Hunan, China

Received:2009-11-29 Revised:2010-03-22 Published:2020-12-14

摘要/Abstract

摘要： 以长沙市城乡交错带4种人工林为研究对象,对各林分林下植被生物量的分布特征进行了分析。结果表明:4种林分林下活地被物生物量均表现为地上部分>地下部分;枯落物层生物量的变化趋势一致:已分解>半分解>未分解,且在不同林分中,枯落物的生物量占林下地被物生物量的比例均为最大,在50%～76%之间,除杉木人工林外,其余3种林分草本层所占比例最小;总生物量差异较为显著,湿地松林为28.75t/hm²,显著大于其它3种林分;活地被物生物量以湿地松林为最大,达8.46t/hm²;幼树层生物量的大小为湿地松林>枫香林>杉木林>樟树林;灌木层生物量的排列顺序为枫香林>湿地松林>樟树林>杉木林;草本层为杉木林>湿地松林>枫香林>樟树林;凋落物生物量的变化规律同草本层。

关键词: 城乡交错带, 林下植被, 生物量, 分布格局

Abstract: With four types of planted forests in urban-rural fringe area of Changsha as the research object, the distribution pattern of undergrowth vegetation biomass was analyzed. The results showed that the order of living-undervegetation biomass in the forests was above ground part>under ground part; litter biomass was decomposed>semi-decomposition>undecomposed, while the proportion of litter biomass in undercover biomass is largest in different forests, and the content is between 50%~76%.Except Cunninghamia lanceolata forest, the proportion of herb biomass is smallest in other three forests; the difference among total biomass was significant. Pinus elliottii forest biomass was 28.75t/hm², which was significantry bigger than the other three forests; biomass of living-undervegetation in Pinus elliottii forest was largest and reached 8.46t/hm²; biomass order of sapling was Pinus elliottii>Liquidambar formosana>Cunninghamia lanceolata>Cinnamomum camphora; biomass order of shrub was Liquidambar formosana>Pinus elliottii>Cinnamomum camphora>Cunninghamia lanceolata; biomass order of herb was Cunninghamia lanceolata>Pinus elliottii>Liquidambar formosana>Cinnamomum camphora; biomass order of litter was same with herb.

Key words: urban-rural fringe, undergrowth vegetation, biomass, distribution pattern

中图分类号:

S718

陈彩虹. 长沙市4种人工林林下植被生物量及分布格局研究[J]. 林业资源管理, 2010, 0(3): 49-53.

CHEN Caihong. Study on the Biomass and Distribution Pattern of Undergrowth Vegetation in Four Types of Planted Forests in Changsha[J]. FOREST RESOURCES WANAGEMENT, 2010, 0(3): 49-53.

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