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生态学杂志 ›› 2010, Vol. 29 ›› Issue (08): 1477-1481.

• 研究报告 •    下一篇

长白山原始阔叶红松林径级结构模拟

谢小魁1,2,3,苏东凯1,2,4,刘正纲1,2,于大炮1,周 莉1,代力民1**   

  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湖南农业大学,长沙 |410128;4中国吉林森林工业集团有限责任公司,长春 130021
  • 出版日期:2010-08-06 发布日期:2010-08-06

Modeling diameter distribution of primary broadleaf-Korean pine mixed forest in Changbai Mountains.

XIE Xiao-kui1,2,3, SU Dong-kai1,2,4, LIU Zheng-gang1,2, YU Da-pao1, ZHOU Li1, DAI Li-min1   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China|2Graduate University of Chinese Academy of Sciences, Beijing 100049, China|3Hunan Agricultural University, Changsha 410128, China|4Jilin Forest Industry Group Limited Liability Company, Changchun 130021, China
  • Online:2010-08-06 Published:2010-08-06

摘要: 以原始阔叶红松林为研究对象,设置了2块1 hm2样地,利用Weibull分布函数、负指数函数和q值理论对其林分径级结构进行模拟。结果表明:2块样地林分的径级分布均呈倒“J”形,森林更新良好;Weibull分布函数和负指数函数都取得了较好的模拟效果,但Weibull分布函数更好地预测了大径阶株数,因此,Weibull分布函数比负指数函数更适合原始阔叶红松林径级结构的模拟;2块样地的q值偏小(分别为1.74和1.45),说明径级结构曲线较平缓,大径材数量多。q值法则对于阔叶红松林径阶株数密度的表达效果较好,可以被用于描述阔叶红松林的胸径分布。

关键词: CH4氧化, 深度特征

Abstract: Two 1-ha plots were set up in an old-growth broadleaf-Korean pine mixed forest in Changbai Mountains, Northeast China, and the Weibull function, negative exponential function, and constant ratio q were used to model the diameter distribution. In the two plots, the diameter distribution of the trees all exhibited inverse J-shape, which meant that understory regeneration was relatively good. Both Weibull and negative exponential functions were suitable for modeling the diameter distribution in primary broadleaf-Korean pine mixed forest, but Weibull function could better predict the number of big trees, compared with negative exponential function. The diameter q values of the two plots were small, being 1.74 and 1.45, respectively, which meant that the slope of diameter distribution was quite mild and there were many big trees in the plots. The constant ratio q was better for expressing the diameter-density of broadleaf-Korean pine mixed forest, being possible to be used to describe the diameter distribution of broadleaf-Korean pine mixed forest.

Key words: Methane oxidation, Vertical profile