2) Stem flow
树干径流
1.
Nitrate nitrogen content of stem flow of evergreen broad-leaved forest in Tiantong is determined by phenol disulfonic acid method in August 2007.
通过测定天童常绿阔叶林2007年8月份降雨和树干径流中硝态氮含量,分析8月份全部降水过程树干径流中硝态氮的变化规律及其与其它生态因子之间的相互关系。
2.
The water quality of canopy throughfall is better than that of stem flow.
为探讨桉树人工林冠层对降雨水质的影响过程与特征,采用林内雨收集系统收集水样,研究了6种不同林分人工林对冠层穿透水和树干径流水浊度、色度、pH值、化学需氧量(COD)等的影响。
3) path bc-tree
路径bc树
4) seam tree
路径树
1.
Automatically trim triangulated surfaces by optimizing seam tree;
基于切割路径树优化的三角化网格曲面自动切割
5) stemflow
树干径流
1.
The water quality of rainfall, throughfall, stemflow and runoff in the headsteam of Ashi River was studied.
对阿什河源头地表水来源过程中各环节(包括大气降水、穿透水、树干径流和地表径流)的水化学性质进行分析比较。
2.
The water quality in rainfall,throughfall,stemflow and litterthrough in the Pinus sylvestris var.
m ongolica)生态系统的大气降水、穿透水、树干径流和枯透水中的pH值、溶解氧、浊度、电导率、氧化还原电位、钾、钠、钙、镁、铜、锌、锰、铁等水质指标进行了观测,结果表明:大气降水经过林冠层后,水化学特征发生了明显变化,pH逐层降低,经过枯枝落叶层后,水质的酸化得到了缓解,说明樟子松人工林的枯枝落叶层对水质酸化有很好的缓冲作用。
3.
In order to know the influence of Larix gmelinii Plantations at eastern mountainous region in Heilongjiang province on the water quality,the water quality indexes in precipitation,throughfall,stemflow and runoff has been studied through the apparatus of water quality monitor and the method of atom absorb.
为了解黑龙江省东部山地落叶松人工林生态系统对水质的影响,试验用多参数水质监测仪和原子吸收法对大气降水、穿透水、树干径流和地表径流中的pH值、溶解氧、浊度、电导率、氧化还原电位、K、Na、Ca、Mg、Cu、Zn、Mn和Fe等水质指标进行测定。
6) stem diameter
树干直径
1.
The growth pattern in stem diameter of nine sample trees of Larix principis-rupprechtii was measured by dendrometer and the response of which to the meteorological factors was researched from May to November in 2005 in the north of Liupan Mountain, Ningxia.
结果表明:树干直径的日最大值出现在6:00—9:00,最小值则在16:00—20:00;直径生长的季节变化表现为前期快后期慢,8月下旬以后基本停止生长;林分内优势度大的林木生长较快;树干直径生长过程随时间的变化符合幂函数曲线,方程的确定系数为0。
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