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stem measurement
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     Measurement and calculation methods of stem image information.
     单株立木图像信息的提取与解算
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     Mobilization and Measurement of Allogeneic Peripheral Blood Stem Cells
     异基因外周血干细胞的动员与衡量
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     Measurement of P16-.
     10.绒癌继发于正常妊娠组p16、P15基因联合阴性率42.9%; 继发于葡萄胎组0%;
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     On scientific measurement
     谈施工中的科学测量
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     The stem and leaf of E.
     大戟茎叶对试鼠无毒杀作用。
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  stem measurement
Well ordered graphitic carbon layers on larger single crystal magnetite particles were found by EELS-STEM measurement.
      
EELS-STEM measurement reveals amorphous carbon rim of thickness 3-5?nm around some particles after activation and during FTS.
      


Based on the forest plot investigation and trees 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 trees 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...

Based on the forest plot investigation and trees 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 trees 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 trees 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.

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 ,并解决了森林生态系统模拟中关键参数确定的问题

 
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