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黑龙江省帽儿山林区6种主要林分类型凋落物研究
引用本文:张东来,毛子军,朱胜英,周彪.黑龙江省帽儿山林区6种主要林分类型凋落物研究[J].植物研究,2008,28(1):104-108.
作者姓名:张东来  毛子军  朱胜英  周彪
作者单位:1. 东北林业大学森林植物生态学教育部重点实验室,哈尔滨,150040;黑龙江省林业科学研究所,哈尔滨,150081
2. 东北林业大学森林植物生态学教育部重点实验室,哈尔滨,150040
摘    要:对帽儿山林区水曲柳、落叶松等六种主要林分的年凋落量、凋落物组成及分解动态进行了观测。结果表明:(1) 六种林分的年凋落量分别为水曲柳(5.57 t·hm-2)、蒙古栎(4. t·hm-2)、山杨(4.27 t·hm-2)、落叶松(4.08 t·hm-2)、红松(5.62 t·hm-2)、樟子松(5.56 t·hm-2);(2) 六种林分其叶的年凋落量占年总凋落量的比例明显大于其它组分,是其凋落物中的主要组成部分;(3) 经过近1a时间的分解,测得六种林分凋落叶分解速率依次为:水曲柳>樟子松>落叶松>山杨>蒙古栎>红松;经模拟研究表明,水曲柳凋落叶95%分解需3.5 a;蒙古栎需8.0 a;山杨需6.7 a;落叶松需6.6 a;红松需8.8 a;樟子松需4.4 a。

关 键 词:黑龙江  帽儿山  森林生态系统  林分类型  凋落物
文章编号:1673-5102(2008)01-0104-05
修稿时间:2007年4月24日

Litter Falls of 6 Major Forest Stands in Maoershan Mountain of Heilongjiang Province
ZHANG Dong-Lai,MAO Zi-Jun,ZHU Sheng-Ying,ZHOU Biao.Litter Falls of 6 Major Forest Stands in Maoershan Mountain of Heilongjiang Province[J].Bulletin of Botanical Research,2008,28(1):104-108.
Authors:ZHANG Dong-Lai  MAO Zi-Jun  ZHU Sheng-Ying  ZHOU Biao
Institution:1.Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 1500402.Heilongjiang Forest Research Institute, Harbin 150081
Abstract:The annual litterfall production, composition and decomposition of the litterfall of six typical stands in Maoershan, Heilongjiang Province were studied in this paper. The results are as follows: (1)the annual litter production is in the sequence of Pinus koraiensis (5.62 t·hm-2), Fraxinus mandshurica(5.57 t·hm-2), Pinus sylvestris(5.56 t·hm-2), Quercus mongolica(4.31 t·hm-2), Populus davidiana(4.27 t·hm-2),Larix gmelinii(4.08 t·hm-2); (2) the fall of leaves of six forests occupies a higher percentage in the annual total litterfall than that of other components; (3)decomposition rates of leaf litter in the six forests obvious: Fraxinus mandshurica > Pinus sylvestris > Larix gmelinii > Populus davidiana > Quercus mongolica > Pinus koraiensis.The simulated time spans needed for 95% weight loss of litter in Fraxinus mandshurica, Quercus mongolica, Populus davidiana, Larix gmelinii, Pinus koraiensis, Pinus sylvestris stand were 3.5, 8.0, 6.7, 6.6, 8.8 and 4.4 years, respectively.
Keywords:Heilongjiang Provice  Maoershan  forest ecosysytem  forest stands  litter fall
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