巴郎山川滇高山栎灌丛地上生物量及其对海拔梯度的响应

doi:10.11707/j.1001-7488.20060201

林业科学 ›› 2006, Vol. 42 ›› Issue (2): 1-7.doi: 10.11707/j.1001-7488.20060201

• 论文及研究报告 • 下一篇

巴郎山川滇高山栎灌丛地上生物量及其对海拔梯度的响应

刘兴良^1,2 刘世荣³ 宿以明² 蔡小虎² 马钦彦¹

1.北京林业大学资源与环境学院,北京100083；2.四川省林业科学研究院成都610081；3.中国林业科学研究院森林生态环境与保护研究所,北京100091

收稿日期:2004-05-31 修回日期:1900-01-01 出版日期:2006-02-25 发布日期:2006-02-25

Aboveground Biomass of Quercus aquifolioides Shrub Community and Its Responses to Altitudinal Gradients in Balangshan Mountain, Sichuan Province

Liu Xingliang^1,²,Liu Shirong³,Su Yiming²,Cai Xiaohu²,Ma Qinyan¹

1. Environment and Resources College of Beijing Forestry University Beijing 100083; 2. Sichuan Academy of Forestry Chengdu 610081; 3.Institute of Forest Ecology, Environment and Protection, CAF Beijing 100091

Received:2004-05-31 Revised:1900-01-01 Online:2006-02-25 Published:2006-02-25

摘要/Abstract

摘要：

采用标准地和样方收获法,对卧龙自然保护区5个海拔高度上18个样地的川滇高山栎灌丛生物量进行调查。结果表明:1)用地径(D)、树高(H)估测单株木各器官生物量的适合模型为指数模型和幂函数模型,指数模型最佳,相关系数0.941～0.998;而用D2H估测单株木各器官生物量的适合模型为直线和指数模型,直线模型最佳,相关系数0.982～0.996;2)川滇高山栎灌丛群落地上部分总生物量为25.22t·hm^-2,各层生物量排序为川滇高山栎灌木层>枯枝落叶层>伴生灌木>苔藓层>草本层,其生物量占总生物量的百分率分别为72.20%、23.71%、1.80%、1.66%和0.63%;3)川滇高山栎灌木种群平均总生物量为18.21t·hm^-2,各器官生物量大小为干>枝>叶>皮,分别占总生物量的43.28%、26.88%、19.82%和10.02%。海拔2720～2920m地带川滇高山栎灌木干、枝、叶、皮的生物量比例约为4∶3∶2∶1;海拔3020～3120m地带川滇高山栎灌木干、枝、叶、皮的生物量比例约为4∶2∶2∶1。4)随着海拔升高,川滇高山栎优势单株地径、高度及生物量呈减小趋势。海拔2720～2920m处,川滇高山栎灌木地上部分各器官生物量呈纺锤形分布,集中分布在株干高2.0～3.0m处,约占总量的60%～70%;在海拔3020～3120m处或低海拔的干旱生境,川滇高山栎种群地上部分器官生物量呈金字塔形分布,个体地上部分生物量分布随树干的升高而降低,集中分布在0～1.0m处,占总生物量的60%以上,0.0～2.0m处的生物量占总生物量的94%～99%。

关键词: 川滇高山栎, 地上生物量, 模型, 海拔梯度, 卧龙自然保护区

Abstract:

Using the methods of field plot investigation and sample tree plot harvesting, biomass in 18 plots of Quercus aquifolioides shrub communities, distributing along altitudes from 2 720 m to 3 120 m, studied at Balangshan Mountain in Wolong Nature Reserve. The results showed: 1) The preferred model, which estimate the organs' biomass of individual with diameter (D) or height (H), was an exponential model or a power function model, and the latter was the best with relative coefficients ranging from 0.941 to 0.998; the preferred model, which estimate the organs' biomass of individual with D²H, was a linear model or an exponential model, and the former was the best with relative coefficients ranging from 0.982 to 0.996; 2) The average total biomass of Q. aquifolioides shrub community was 25.22 t·hm^-2, the biomasses in different layers were Q. aquifolioides layer > ground litter > the associated shrubs layer > moss> herbage, and their biomasses accounted for 72.20%,23.71%,1.80%,1.66% and 0.63% of the total biomass respectively; 3) The total average biomass of Q. aquifolioides population was 18.21 t·hm^-2, the biomasses in different organs were stem > branch > leaf > bark, and their biomasses accounted for 43.28%,26.88%,19.82% and 10.02% of the total population biomass respectively. For the aboveground biomass of the populations distribute from 2 720 m to 2 920 m, stem∶branch∶leaf∶bark was 4∶3∶2∶1; and for the aboveground biomass of the populations distribute from 3 020 m to 3 120 m, stem∶branch∶leaf∶bole bark was 4∶2∶2∶1; 4) There was a decline trend in base diameter, height, and biomass of Q. aquifolioides with the increase of altitude. Aboveground biomass of individual was spindle distribution for the Q. aquifolioides from 2 720 m to 2 920 m, and it distributed mainly from 2.0 m to 3.0 m of the stem, accounted for 60%～70%; for the Q. aquifolioides from 3 020 m to 3 120 m or in drought habitats in lower altitude area, aboveground biomass of individual was pyramid distribution, it increased with the height of the tree, it distributed mainly from 0.0 m to 1.0 m of the stem, accounted for 62%～83%, and the biomass from 0 m to 2.0 m of the stem accounted for 94%～99%.

Key words: Quercus aquifolioides, aboveground biomass, model, altitudinal gradient, Wolong Natural Reserve

刘兴良;刘世荣宿以明蔡小虎马钦彦. 巴郎山川滇高山栎灌丛地上生物量及其对海拔梯度的响应[J]. 林业科学, 2006, 42(2): 1-7.

Liu Xingliang;Liu Shirong;Su Yiming;Cai Xiaohu;Ma Qinyan. Aboveground Biomass of Quercus aquifolioides Shrub Community and Its Responses to Altitudinal Gradients in Balangshan Mountain, Sichuan Province[J]. Scientia Silvae Sinicae, 2006, 42(2): 1-7.

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巴郎山川滇高山栎灌丛地上生物量及其对海拔梯度的响应

Aboveground Biomass of Quercus aquifolioides Shrub Community and Its Responses to Altitudinal Gradients in Balangshan Mountain, Sichuan Province

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