摘要
采用小波分析的方法对黑龙江省大兴安岭兴安落叶松林的林窗分布进行分析，研究结果表明：兴安落叶松林样带内计算林窗分布百分率小波变换的最佳尺度为１０ｍ 。林窗分布的疏密变化尺度为２０ｍ 左右，在样地中２０×２０ｍ ２的小区域内具有较为稳定的分布特点。在样带中林窗分布呈斑块状，且斑块分布随样带的海拔的升高呈间断性分布。小波分析被证明是植被空间格局研究的简捷可靠的新方法。
The distributional rule of canopy gaps of Larix gmelinii forests in Daxinganling, Heilongjiang Province, was studied using wavelet analysis. The results obtained are as follows: The optimum scale of wavelet transformation for estimating the percent of gap distribution in transect of forests is 10 meters. That for variable density of gap distribution is about 20 meters. The gap distribution in small areas of 20×20m 2 in transects is relatively stable and tends to be fragmental and discontinuous with increase in altitude. It was approved that the wavelet analysis is an effective and credible method in the study on spatial pattern of vegetational distribution.
出处
《生态学报》
CAS
CSCD
北大核心
1999年第6期927-931,共5页
Acta Ecologica Sinica
基金
东北林业大学森林植物生态学开放研究实验室开放基金
