1) tree height curve graph
树高曲线图
1.
A study on the drawing and application of tree height curve graph in the investigation and design of the fir and pine plantation cutting area;
杉松人工林伐区调查设计中树高曲线图的绘制与应用
2) height curve
树高曲线
1.
Six popular height curve equations were adopted to fit with height curve and the results were assessed.
运用Matlab软件,分别采用6个常用的树高曲线方程对树高曲线进行拟合,并对结果作了评价。
2.
As we all know,height curve play an important role in the forest management and forest yield regulation.
树高曲线在森林经营和收获调整中具有重要的作用。
3) curve equation of height
树高曲线方程
4) relative tree height curve
相对树高曲线
1.
The relative tree height curve models of main seven tree species groups in Guangdong Province, that is Pinus massoniana, Chinese fir, Pinus elliottii, Eucalyptus urophylla, Castanopsis fissa, Soft broadleves, Hard broadleves are established by using 254 sample plots in this paper.
在广东省范围内收集了254块样地资料,建立了广东省马尾松、杉木、湿地松、尾叶桉、藜蒴、软阔类、硬阔类等7个树种(组)的相对树高曲线模型。
2.
In this paper,one method to establish the stand form-height table for estimating the stand volume is presented,based on computing the stand form-height using the sampling data for establishing the relative tree height curve models and data of the CFI.
提出利用建立相对树高曲线模型的样地数据资料和森林资源连续清查的样地数据资料计算林分形高,编制林分形高表估测林分蓄积量的方法,通过林分形高模型自检和实践检验,表明编制现实林分形高表是非常必要的,且编表方法是可行的,认为在森林资源二类调查及连续清查中有推广使用价值。
3.
The relative tree height curve models of 6 tree species groups in Tibet, that is Fir, Spruce, Cypress, Pine, Oak and other broadleaves, are established by using 554 sample plots of CFI in 2001 in Tibet All models have high precision for volume estimation, and can be used in various kinds of forest inventories in Tibe
利用西藏自治区 2 0 0 1年森林资源连续清查的 5 5 4个有林地和疏林样地 ,建立了冷杉、云杉、柏木、松类、栎类、阔叶类等 6个树种组的相对树高曲线模型。
5) height-age curve
树高生长曲线
6) Theoretical height-diameter curve height
标准树高曲线
补充资料：气象树——青冈树(图）
 |
青冈树又名青冈栎，因它的叶子会随天气的变化而变化，所以称为“气象树”。
青冈树为亚热带树种，我国南方多见，它对气候条件反应敏感，是因为叶片中所含的叶绿素和花青素的比值变化形成的。在长期干旱之后，即将下雨之前，遇上强光闷热天，叶绿素合成受阻，使花青素在叶片中占优势，叶片逐渐变成红色。
有些地方的农民根据平时对青冈树的观察，得出了经验：当树叶变红时，这个地区在一两天内会下大雨，雨过天晴，树叶又呈深绿色。农民根据这个信息，预报气象，安排农活。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。