摘要
根据对贡嘎山和岷江上游山区森林样地的调查和解析木分析 ,作者对横断山亚高山森林区的优势树木的生长速率进行了分类 ,采用几种不同公式来表达树木胸径的生长动态 ,分析了不同树种的速生时期和生产率变化水平。还研究了基于不同函数形式下的林窗模型生长参数的解析求解方法 ,提出了计算森林建群树种的生长参数的新公式。这些结果对于推算林区生物量和木材生产率提供了理论依据 。
Based on the forest plot investigation and trees stem measurement for the eastern Tibet plateau of southwestern China, the growth rate for dominant trees in the forest area has been analyzed. Different types of formulas are used to fit the relationship of stem diameter DBH growing with trees age. These analyses show that there exist the rapid growth phase and high productivity for different tree species. The growth function of coniferous trees got from the field investigation can be used to the forest gap model that is applied to simulate the forest succession. A new method is proposed by the authors to estimate the trees growth parameter of forest gap model. This method can draw more information from the field investigation data and is more rational in parameter estimation of dominant trees in region of southwestern China. These growth function and succession parameters are fundamental for estimating the biomass and wood productivity of forest, and will largely improve the simulated results of forest succession by forest gap model.
出处
《山地学报》
CSCD
2002年第5期542-547,共6页
Mountain Research
基金
中国科学院知识创新工程重要方向性项目 (KZCX2 -SW -3 19)
国家自然科学基金重点项目 (3 993 0 13 0 )资助
