1) self thinning
自稀疏
1.
As an example, the equation was applied to simulate self thinning process of vegetation, in which some simple cylinder and cone interaction terms were used, and statistical results were very similar to -3/2 law.
作为示例 ,该文用Logistic方程描写个别植株的生长过程 ,并且在方程中加入了十分简单的柱型或锥型相互作用项 ,模拟了植被的自稀疏过程 ,并且统计出与 - 3 2定律十分符合的结果 。
2.
It is necessary to determine the ratio between variance of sampling error e of quadratic average diameter Dg and that of sampling error ε of the tree numbers N per unit area when measurement error models is applied to estimate the parameters of a model between Dg and N ,in a study on stand self thinning processes.
在林分自稀疏过程研究中，利用度量误差模型的形式估计林分断面积平均直径Ｄｇ与单位面积株数Ｎ关系模型的参数时，需要确定Ｄｇ和Ｎ的抽样误差ｅ、ε方差的比值。
2) natural thinning
自然稀疏
1.
In the intermediate cutting intensity experiment of the Cunninghamia lanceolata Plantation for 20 years,the change pattern of stand natural thinning through the different intermediate cutting intensities was studied,the relationship between tree number of the natural thinning and the stand intensity & site conditions was revealed,the mathematical equation Mk_1·k_2 of natural thinning lines of C.
在杉木人工林抚育间伐强度试验20年中,研究不同间伐强度林分自然稀疏的变化,揭示自然稀疏株数与林分密度和立地条件的关系,对杉木林密度管理图自然稀疏线数学方程M=k1·k2作出检验,提出不同间伐强度林分直径、树高和林冠结构等。
3) Self thinning
自然稀疏
1.
mongolica on sandy soil during their self thinning.
林分在自然稀疏过程中 ,与密度相关的死亡是由林木大小的增加引起的。
4) Self-thinning
自然稀疏
1.
The Self-thinning Law of Pinus taiwanensis Natural Forest in Wuyishan National Nature Reserve;
武夷山国家级自然保护区黄山松天然林自然稀疏规律研究
2.
Yoda s -3/2 power rule or law of self-thinning based on the isometric scaling growth of plant,as well as a-4/3 law of self-thinning based on the energy equivalence ecological theory and the allometric relationship between metabolic rate and body mass of individuals are reviewed.
由密度导致的植物种群的自然稀疏现象,是植物种群生态学研究的热点。
5) selfthinning rule
自然稀疏法则
6) species self thinning line
种的自然稀疏线
1.
The researches on self thinning pure stands for 40 years in the world were summarized and evaluated including self thinning rule, allometric model, mean individual weight density trajectory during the course of self thinning, species self thinning line and dynamic thinning line, the relationship between the slope of self thinning line and biomass, the relationship between the self thinning and co.
评述 4 0 a来世界上有关纯林自然稀疏的研究内容 ,包括了自然稀疏法则 ,异速生长模型、平均个体重与密度的时间轨线 ,种的自然稀疏线和自然稀疏动力线的关系 ,自然稀疏线的斜率与生物量的关系 ,自然稀疏与竞争密度效果的关系 ,自然稀疏的机
补充资料：自调自净自度
【自调自净自度】
（术语）同自调项。
（术语）同自调项。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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