[1]逯军峰,王辉*,曹靖,等.油松人工林凋落物对土壤理化性质的影响[J].西北林学院学报,2007,22(03):25-28.
　LU Junfeng,WANG Hui,CAO Jing,et al.Effect of Forest Litiers on Soil Physical and Chemical Properties in Pinus tabulaeformis Plantation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(03):25-28.
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油松人工林凋落物对土壤理化性质的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第22卷
期数:
2007年03期
页码:
25-28
栏目:
森林生物学
出版日期:
2007-06-30

文章信息/Info

Title:
Effect of Forest Litiers on Soil Physical and Chemical Properties in Pinus tabulaeformis Plantation
作者:
逯军峰1; 王辉1*; 曹靖2; 袁宏波1
1.甘肃农业大学 林学院，甘肃 兰州 730070; 2.兰州大学 干旱与草地农业生态教育部重点实验室,甘肃 兰州 730000
Author(s):
LU Junfeng1; WANG Hui1;  CAO Jing2; YUAN Hongbo1
1. College of Forestry, Gansu Agricultural University, Lanzhou, Gansu 730070,China;2.Key Laboratory of Arid and Grassland Agroecology,Lanzhou Uinversity,Lanzhou, Gansu 730000,China
关键词:
油松; 人工林; 凋落物; 土壤理化性质
Keywords:
Pinus tabulaeformis; plantation;  litter;  soil physical and chemical properties
分类号:
S714.2
文献标志码:
A
摘要:
对不同林龄油松人工林凋落物与土壤理化性质进行了测定分析。结果表明油松人工林年凋落量与现存量随林龄增加均表现出递增趋势，30 a生油松林的年凋落量和23 a生油松林现存量分别达到4.236 t·hm-2和18.788 t·hm-2；枯枝落叶层主要营养元素储存量随着林龄的增加而增加；N、P、K的积累量分别为114.72～201.32、5.63～11.12、12.48～23.11 kg·hm-2；凋落物分解率呈波动式递增趋势,且与阔叶树混交比例密切相关；油松人工林林地土壤有机质、N含量、P含量、田间持水量随林龄增加呈波动式递增，而容重则呈递减趋势；年凋落量、现存量、分解率与土壤有机质、N、P、K的含量、pH、田间持水量呈正相关，与土壤容重呈负相关。
Abstract:
Five stands of Pinus tabulaeformis plantation,a secondary forest in the Xiaolong Mountain of Gansu were investigated to study the impact of forest litter on soil physical and chemical properties.The results showed that annual litterfall and reserve of litter of P. tabulaeformis plantation fluctuatingly increased with ages,which had the maximal amount up to 4.236 t·hm-2 of 30 a P.tabulaeformis,18.788 t·hm-2 of 23 a P. tabulaeformis respectively.The content of main nutrients in forest floor increased with ages,the content of N ranged from 114.72 kg·hm-2 to 201.32 kg·hm-2,that of P from 5.63 kg·hm-2 to 11.12 kg·hm-2,that of K from 12.48 kg·hm-2 to 23.11 kg·hm-2. Litter decomposition rate increased with ages and correlated closely with broad leaf trees.The content of soil organic matter,soil total N, total P, field capacity was increased with ages,but bulk density was dicreased with ages. The soil factors of soil organic matter,total N, total P, total K,pH, field capacity showed positive correlation with annual litterfall,reserve of litter and decomposition rate,but contzary result could be found in soil bulk density.

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备注/Memo

备注/Memo:
收稿日期：20061011修回日期：20061101基金项目：国家973计划“西部典型区域森林植被对农业生态环境的调控机理”（2002CB111505）;甘肃省自然科学基金“甘肃不同森林树种与土壤的耦合关系与森林生态恢复研究”（3ZS051A25019）作者简介：逯军峰（1982），男，甘肃秦安人，硕士研究生，研究方向为水土保持与荒漠化防治。*通讯作者：王辉，博士，教授。Email:wangh@gsau.edu.cn
更新日期/Last Update: 2010-05-04