长白山北坡暗针叶林倒木贮量和分解的研究

应用生态学报 ›› 2002, Vol. ›› Issue (9): 1069-1071.

长白山北坡暗针叶林倒木贮量和分解的研究

杨丽韫, 代力民, 张扬建

中国科学院沈阳应用生态研究所, 沈阳 110016

收稿日期:2000-11-06 修回日期:2001-07-02 出版日期:2002-09-15
通讯作者: 杨丽韫,女,1974年出生,博士生,主要从事森林生态学研究,发表论文3篇.E-mail:wendy6393@sina.com
基金资助:
中国科学院重大项目(KZ951-A1-301)和中国科学院特别支持资助项目(KZ957-04).

Storage and decomposition of fallen wood in dark coniferous forest on the North Slope of Changbai Mountain

YANG Liyun, DAI Limin, ZHANG Yangjian

Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016

Received:2000-11-06 Revised:2001-07-02 Online:2002-09-15

摘要/Abstract

摘要： 对长白山北坡海拔1260m和1620m暗针叶林中倒木蓄积、生物量和倒木的分解进行了比较研究,结果表明,暗针叶林中倒木的蓄积为180.87m³·hm^-2,占林分蓄积的21.83%.低海拔的倒木蓄积和生物量均比高海拔的低,海拔1260m的倒木蓄积为52.57m³·hm^-2,生物量为26.21t·hm^-2;海拔1620m的倒木蓄积为193.85m³·hm^-2,生物量为53.33t·hm^-2.用单项指数衰减模型对倒木的分解进行模拟可知,倒木的分解常数随树种和海拔高度的不同而不同.冷杉倒木的分解常数比云杉倒木大;倒木在低海拔的分解常数比在高海拔的大,表明云杉倒木完全分解需要较长的时间.

关键词: 长白山, 暗针叶林, 倒木贮量, 倒木分解

Abstract: The storage, biomass, and decomposition of fallen woods in dark coniferous forest on the north slope of Changbai Mountain at elevations of 1260 m and 1620 m were studied. The results showed that the volume of fallen woods was 180.87 m³穐m^-2, occupying21.83% of the stand volume. The volume and biomass of fallen woods at elevation of 1260 m were higher than those at 1620 m. The volume of fallen woods was 52.57 m³穐m^-2 at 1260 m, and was 193.85 m³ 穐m^-2 at 1620 m, and their biomass was 6.21 t穐m^-2 at 1260 m, and was 53.33 t穐m^-2 at 1620 m. Monomial exponential attenuation model could be used to simulate the decomposition process of fallen woods. The results indicated that the decomposition constants of fallen woods were different among diffe-rent tree species and different elevations. The decomposition constant of fallen woods of Abies was higher than that of Picea, and was higher at 1260 m than at 1620 m. The results also showed that the decomposition of Picea lasted longer.

中图分类号:

S718.5

杨丽韫, 代力民, 张扬建. 长白山北坡暗针叶林倒木贮量和分解的研究[J]. 应用生态学报, 2002, (9): 1069-1071.

YANG Liyun, DAI Limin, ZHANG Yangjian . Storage and decomposition of fallen wood in dark coniferous forest on the North Slope of Changbai Mountain[J]. Chinese Journal of Applied Ecology, 2002, (9): 1069-1071.

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