1) crown competition factor
树冠竞争指数
2) crown competition
树冠竞争
3) competition index
竞争指数
1.
Then,with a plot size of 100 m × 100 m,Hegyi s competition index model for individual trees was used to determine competition within dominant tree populations in an evergreen broad-leaved forest of National Nature Reserve of Mount Tianmu.
利用Hegyi简单竞争指数研究优势种群竞争的方法,分析了天目山国家级自然保护区内的常绿阔叶林优势种群在群落中的竞争状况。
2.
mongolica natural forest in Honghuaerji Nature Reserve of Inner Mongolia were analyzed by the Hegyi s single tree competition index.
运用Hegyi单木竞争指数分析了内蒙古红花尔基自然保护区天然樟子松(Pinus sylvestrisvar。
3.
Analyzed the intraspecific and interspecific relationship of Bruguiera gymnorrhiza and Rhizophora stylosa with commonly used niche calculation formula and Hegyi single-tree competition index mode, the results showed that they had extreme similar niche breadth and high value of the niche overlap index.
文章采用常用的生态位宽度、生态位重叠计测公式和Hegyi竞争指数模型,研究木榄和红海榄种内以及种间的相互关系。
4) crown cut-off height point
树冠光竞争高度
1.
A stratification method of forest vertical structure was built based on crown cut-off height point(CCHP) in stand.
采用以树冠光竞争高度为基础的林分垂直层数量化方法研究了云蒙山几种典型森林群落的垂直结构特征,并将不同群落的垂直层划分结果与树高系统聚类分析结果相比较,发现在森林群落垂直层划分过程中,树冠光竞争高度附近的树被误划的几率较高;截止系数a=0。
5) Hegyi competition index
Hegyi竞争指数
1.
In consideration stand competition mechanism and the utilization of the nutrition space of the crown,this article proposed a new method using Hegyi competition index(CI),Growth space index(GSI) and Growth space competition index(GSCI) to analyze and optimize the spatial structure.
主要从林分竞争机制和树冠营养空间利用情况等方面提出了利用Hegyi竞争指数、生长空间指数、生长空间竞争指数分析优化林分空间结构,进一步比较了不同择伐强度下林分空间结构变化的大小。
6) competitiveness index
竞争力指数
1.
In addition by taking 17 cities of Henan province for example,we rank the competitiveness index through dealing with original data.
本文采用层次分析法建立城市竞争力的评价系统,并以河南省的17个城市为例进行实证分析,通过对原始数据的整理,给出其竞争力指数的排名,同时也分析了影响河南省部分城市竞争力的原因。
补充资料：树冠
1.乔木树干以上连同集生枝叶的部分，其状如冠，故称。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条