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[1]何帆,王得祥,张宋智,等.小陇山林区主要森林群落凋落物及死木质残体储量[J].应用与环境生物学报,2011,17(01):46-50.[doi:10.3724/SP.J.1145.2011.00046]
 HE Fan,WANG Dexiang,ZHANG Songzhi,et al.Reserves of Litter and Woody Debris of Two Main Forests in the Xiaolong Mountains, Gansu, China[J].Chinese Journal of Applied & Environmental Biology,2011,17(01):46-50.[doi:10.3724/SP.J.1145.2011.00046]
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小陇山林区主要森林群落凋落物及死木质残体储量()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
17卷
期数:
2011年01期
页码:
46-50
栏目:
研究论文
出版日期:
2011-02-25

文章信息/Info

Title:
Reserves of Litter and Woody Debris of Two Main Forests in the Xiaolong Mountains, Gansu, China
作者:
何帆王得祥张宋智刘文桢沈亚洲胡有宁
(1西北农林科技大学林学院 杨凌 712100)
(2甘肃省小陇山林业科学研究所 天水 741022)
Author(s):
HE Fan WANG Dexiang ZHANG Songzhi LIU Wenzhen SHEN Yazhou & HU Youning
(1College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China)
(2Xiaolongshan Forestry Research Institute of Gansu, Tianshui 741022, Gansu, China)
关键词:
小陇山粗死木质残体细小木质残体凋落物锐齿栎油松
Keywords:
Xiaolong Mountains coarse woody debris fine woody debris litter Quercus aliena var. acuteserrata Pinus tabulaeformis
分类号:
S718.554
DOI:
10.3724/SP.J.1145.2011.00046
文献标志码:
A
摘要:
采用固定面积样方取样法研究了小陇山林区锐齿栎和油松天然林死木质残体及凋落物的总储量. 结果表明:小陇山林区锐齿栎天然林粗死木质残体(Coarse woody debris,简称CWD)和细小木质残体(Fine woody debris,简称FWD)储量分别为29 350.92 kg hm-2和2 298.41 kg hm-2,分别为油松天然林的3.8和1.3倍. 油松林CWD组成中枯立木占到85.65%,倒木只占14.35%,而锐齿栎天然林枯立木和倒木所占的比例基本为1. 从CWD的径级结构上来说,锐齿栎林内以大径级CWD为主(≥20 cm),占样地CWD总储量的60.81%,天然油松林以小径级(20 cm≥小径级≥10 cm)CWD为主,大、小径级分别占CWD储量的55.33%和44.67%. 油松林内凋落物储量为30 472.31 kg hm-2,是天然锐齿栎凋落物储量8 902.29 kg hm-2的3倍以上. 凋落物和死木质残体储量的不同是锐齿栎天然林和油松天然林种群结构、林分更新和群落内部竞争状况及凋落物分解状况差异所导致的结果. 表6 参29
Abstract:
The reserves of woody debris and litter from natural Quercus aliena var. acuteserrata forest and natural Pinus tabulaeformis forest in the Xiaolong Mountains were studied by fixed-area-quadrats sampling. The results indicated that coarse woody debris (CWD) and fine woody debris (FWD) from the Q. aliena var. acuteserrata forest were 29 350.92 kg hm-2 and 2 298.41 kg hm-2, respectively, which were 3.8 times and 1.3 times of those from the Pinus tabulaeformis forest. The dead standing trees and fallen dead wood were separately accounted for 85.65% and 14.35% of CWD from the P. tabulaeformis forest, however, the proportion of dead standing trees and fallen dead wood from the Q. aliena var. acuteserrata forest was 1. The big diameter grade of CWD larger than 20 cm was the main component in the Q. aliena var. acuteserrata forest, and accounted for 60.81% of the total reserves, while small diameter grade from 10 cm to 20 cm was mainly found in the P. tabulaeformis forest. The big diameter grade and small diameter grade of CWD accounted for 55.33% and 44.67% of total reserves, respectively. The litter of the P. tabulaeformis forest was 30 472.31 kg hm-2, which was 3 times more than that of the Quercus aliena var. acuteserrata forest. The discrepancy of the reserves of litter and woody debris reflected the diversity of population structure, stand regeneration, community internal competition and litter decomposition conditions of the two forests in the Xiaolong Mountains. Tab 6, Ref 29

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相似文献/References:

[1]杨方方,李跃林.鼎湖山粗死木质残体生物量特征[J].应用与环境生物学报,2011,17(05):750.[doi:10.3724/SP.J.1145.2011.00750]
 YANG Fangfang,LI Yuelin.Coarse Woody Debris Biomass in a Monsoon Evergreen Broad-leaved Forest in the Dinghushan Nature Reserve, China[J].Chinese Journal of Applied & Environmental Biology,2011,17(01):750.[doi:10.3724/SP.J.1145.2011.00750]

备注/Memo

备注/Memo:
国家林业局林业公益性行业科研专项(Nos. 200804022B,No. 200704005)和国家自然科学基金项目(No. 31070570)资助
更新日期/Last Update: 2011-02-28