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应用生态学报 ›› 2009, Vol. 20 ›› Issue (08): 1805-1810.

• 研究报告 • 上一篇    下一篇

大兴安岭呼中林区火烧迹地粗木质残体特征

王文娟1,2;常禹1;刘志华1,2;陈宏伟1,2;荆国志3;张红新3;张长蒙3   

  1. 1中国科学院沈阳应用生态研究所| 沈阳 110016;2中国科学院研究生院| 北京 100049;3大兴安岭呼中林业局| 黑龙江呼中 165036
  • 收稿日期:2008-11-05 出版日期:2009-08-20 发布日期:2009-08-20

Characteristics of coarse woody debris |in Huzhong area of Great Xing’an Mountains.

WANG Wen-juan1,2;CHANG Yu1;LIU Zhi-hua1,2;Chen Hong-wei1,2;JING Guo-zhi3;ZHANG Hong-xin3;ZHANG Chang-meng3   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;2Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3Huzhong Forestry Bureau of the Great Xing’an Mountains, Huzhong 165036, Heilongjiang, China
  • Received:2008-11-05 Online:2009-08-20 Published:2009-08-20

摘要: 对大兴安岭呼中林区不同年份火烧迹地的粗木质残体特征进行了研究.结果表明:呼中林区火烧迹地粗木质残体贮量在24.87~180.98 m3·hm-2,其中倒木和枯立木分别为6.03~93.91 m3·hm-2和15.29~138.37 m3·hm-2,且不同年份火烧迹地之间差异显著;倒木、枯立木所占比例分别为24.26%~86.00%和14.01%~75.4%,且不同年份火烧迹地之间差异显著;倒木和枯立木的优势径级分别为2.50~20 cm和1.50~15 m, 优势长度分别为2.50~15 cm和5~20 m;随着火烧迹地的恢复,粗木质残体贮量的动态变化不明显.粗木质残体特征与火前林分条件和火烧强度密切相关.

关键词: 粗木质残体, 贮量, 火烧迹地, 大兴安岭, 湖泊, 缓冲区, 尺度效应, 景观组成和配置, 水质

Abstract: An investigation was made on the coarse woody debris (CWD) in burned f
orestlands in Huzhong area of Great Xing’an Mountains. The loading capacity of
CWD in the burned forestlands was 249〖KG-*2〗-〖KG-*7〗1810 m3·hm-2
, among which, snag and log occupied 243%〖KG-*2〗-〖KG-*7〗859% and 14.
0%〖KG-*2〗-〖KG-*7〗757%, being 60〖KG-*2〗-〖KG-*7〗939 m3·hm-2
 and 153〖KG-*2〗-〖KG-*7〗1384 m3·hm-2, respectively. Significan
t differences were observed among burned forestlands and among years. The predom
inant DBH class of snag and log was 25〖KG-*2〗-〖KG-*7〗20 c
m and 15〖KG-*2〗-〖KG-*7〗15 m, and the height of most snags and logs was
25〖KG-*2〗-〖KG-*7〗15 m and 5〖KG-*2〗-〖KG-*7〗20 cm, respectively. The loa
ding capacity of CWD had no obvious change with the recovery of forest vegetatio
n. The characteristics of CWD had a close relationship with pre-fire forest sta
nd conditions and burn intensity.

Key words: coarse woody debris (CWD),  , loading capacity, burned forestland, Great Xing’an Mountains, scale effect., lake, water quality, buffer zone, landscape composition and configuration