首页 | 本学科首页   官方微博 | 高级检索  
   检索      

红松针叶的凋落及其分解速率研究
引用本文:代力民,徐振邦,张扬建,陈华.红松针叶的凋落及其分解速率研究[J].生态学报,2001,21(8):1296-1300.
作者姓名:代力民  徐振邦  张扬建  陈华
作者单位:中国科学院沈阳应用生态研究所
基金项目:973项目(G199904307-1)及中国科学院知识创新项目(KZCX2-406-13)资助
摘    要:在长白山森林生态系统研究中,对红松(pinus koraiensis)针叶凋落情况及其分解过程进行研究,表明,红松针叶一般可存活3-4a,调查中存活的为6a。红松叶的寿命与光照密度相关,在针中密集及透光不足的地方针叶寿命较短。红松针叶凋落后,在林地上分解较快,一般4a后其干重保持率为16.6%。模拟实验证明,红松针叶的分解率与海拔和植被类型密切相关。在海拔低的红松阔叶林下,因气温高,分解较快;在海拔较高的云冷杉红松林和岳桦林中分解速度变慢,在高山苔原带分解最慢。

关 键 词:红松  针叶  凋落  分解率
文章编号:1000-0933(2001)08-1296-05
收稿时间:1999/11/23 0:00:00
修稿时间:2000/7/15 0:00:00

Study on decomposition rate and fall of Pinus koraiensis needle
DAI Limin,XU Zhenbang,ZHANG Yangjian and CHEN Hua.Study on decomposition rate and fall of Pinus koraiensis needle[J].Acta Ecologica Sinica,2001,21(8):1296-1300.
Authors:DAI Limin  XU Zhenbang  ZHANG Yangjian and CHEN Hua
Institution:Institution of Applied Ecology; Chinese Academy of Sciences; Shenyang 110015
Abstract:The study on fall and decomposition of Pinus korainsis needle is deficient in Changbai Mountain forest ecosystem. This article fills the need through investigations and experiments. The results show that Pinus korainsis needle usually lives for 3~4 years, and the longest is 6 years. The longevity has close relation with light. Needle decomposes faster in shady place where light is lack. After the needle falls, its decomposition becomes faster. Dry weight remains 16.6% after four year decomposition which concerns with altitude and vegetation type. The simulation experiment shows that the decomposition is fast in Pinus koraiensis broad leaved forest because of high temperature and low altitude, and it is slow in dark coniferous forest and Betula ermanii forest and slowest at Alpine tundra belt.
Keywords:Pinus koraiensis  needle  fall  decomposition rate
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《生态学报》浏览原始摘要信息
点击此处可从《生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号