云南农业大学学报2017，Vol.32Issue(2)：310-315,6.DOI:10.16211/j.issn.1004-390X(n).2017.02.017
鸡公山自然保护区4种森林植被凋落物量及动态
Amount and Seasonal Dynamics of Litterfall in Four Vegetation Types in Jigong Mountain Nature Reserve
摘要
Abstract
To explore the litterfall and seasonal dynamics of forest ecosystem in main vegetation types,by the method of litterfall trap,amount and composition of litterfall in four vegetation types in Jigong Mountain Nature Reserve were surveyed from April 2013 to March 2014.The results showed annual litterfall amount rank was deciduous broad-leaved forest (8.43 t/hm2) ＞ needle and broad-leaved mixed forest (8.15 t/hm2) ＞ Pinus massoniana forest (7.73 t/hm2) ＞ Cunninghamia lanceolata forest (7.19t/hm2).Leaf litter is the main litterfall which account for 50％-71％ of total production,then are branch litter,fruit litter and flower litter,respectively.The monthly dynamics of litterfall showed a double peaks,with the first appeared in July and the maximum in December;the monthly dynamics of plant components were obvious different,leaf fall peak appear in December that account for about 40％of annual leaf litter amount,branch litter mainly from July to October,flower litter mainly in April that account for 60％ of annual amount,fruit litter mainly in October;however;the Cunninghamia lanceolata forest reach the peak in February of second year.The litter amount and dynamics of different vegetation types reflect the biological characteristics and adaptability to drought stress of plant in some extent.关键词
鸡公山/凋落物/季节动态/暖温带-亚热带过渡区Key words
Jigong Mountain/litterfall/seasonal dynamics/temperate-subtropical ecotone分类
农业科技引用本文复制引用
张玉虎,周亚运,柳勇,冯万富,张学顺,单燕祥..鸡公山自然保护区4种森林植被凋落物量及动态[J].云南农业大学学报,2017,32(2):310-315,6.基金项目
国家重点基础研究发展计划项目(2011CB403201) （2011CB403201）
国家林业公益性行业科研专项(201204101) （201204101）
信阳市科技公关计划项目(140030) （140030）
