地位指数

马尾松人工林地位指数BP模型研究

Site Index BP Model of Masson Pine Fortunei Plantation

马尾松人工林Sloboda多形地位指数模型的研究

Study on Sloboda Multi-Shape Site Index Model of Masson Pine

用Richards函数拟合柳杉林多形地位指数曲线

The Establishment of Polymorphic SI Curves of Chinese Cryptomeria by Using Richards Function

Richards函数拟合多形地位指数曲线模型的研究

A study on the establishment of polymorphic site index model by adopting Richards function

已有文献证明了在社会关系图（Sociogram）G中，如果A（G）是简单矩阵，则G的成员地位指数与其完全地位指数相等。

In Sociogram G. if A ( G ) be a simple matrix . it has been proven that the individual status index equals the complete status index .

应用McDill-Amateis方程建立杉木人工林地位指数曲线模型的研究

Research of Establishing China Fir Plantation Site Index Curve Model with McDill-Amateis Equation

试验选定Richard生长模型为杉木人工林生长的基本模型，并将地位指数引入该模型，建立了以地位指数和年龄为自变量的7参数多形型生长模型；

Richards function was selected as the basic growth model of Chinese fir plantation , and site index was introduced into chis model to establish a polymorphic growth model with 7 parameters , using the site index and tree age as the varibles .

BL1、SB和BL2处理地位指数分别比1代下降0.39、045和0.63。

Compared with the first rotation , site index of the second rotation treated with BL_1 , SB and BL_2 treatments decreased by 0.39, 0.45 and 0.63 , respectively .

精度检验表明：用Sloboda树高生长模型拟合的火炬松人工林多形地位指数曲线可以应用于林业生产实践。

As a result , the height growth curve of Pinus taeda plantation is available for forestry production .

本文采用Chapman-Richards函数拟合树高和年龄的关系，用三种不同方法编制杉木地位指数表。

By adopting Chapman-Richards function , this paper describes the height-age relationship and uses three different methods to compare site index table for Chinese fir .

马尾松林分生产力较低，仅为4.67m3／hm2·a，局部林分生产力较高，同时不同地位指数级的林分生产力差异明显，林分平均高与平均优势高密切相关。

Productivity of pine stand was low with 4.67 m3 / ha a , but some parts were higher . Meanwhile , productivity of stand with different site index classes had evident difference , Average height of stand had close relation with average dominant height .

本文以杉木为例，根据在南岭山地收集的建模和检验两套样本，以Richards函数为基本模型，对单形和多形地位指数模型进行了对比研究。

The practicability of the single and polymorphic site index models is researched by taking Chinese fir as an example , adapting Richards growth function as basic model and using the two sets of samples of fitting and testing which were collected in Mount Nanling .

本文以Richards函数为基本模型，讨论了不相交多形地位指数曲线的拟合。解决了标准年龄时树高与指数值不一致的问题；

Richards function was used as a basic model to study the non-intersection polymorphic site index curve , which solved the problem existed while the height of the tree was not uniform with the site index at standard age in plantations of Chinese fir and Masson pine .

5种处理的第2代杉木林地位指数与第1代相比，BL3和BL0处理分别上升0.56和0.27，其余3种处理则有下降。

The site index of the second rotation Chinese Fir plantations in the BL_3 and BL_0 treatments increased by 0.56 and 0.27 , respectively , compared with the first rotation , and decreased in the rest of the 3 treatments .

晋中东部山区油松人工林地位指数表的编制

Site Index Table of Chinese Pine Plantation in Jinzhong East Mountains

落叶松人工林地位指数级导向曲线模型的研究

Study On The Site Index Guiding Curve Model Of Larch Plantation

江苏省南方型黑杨地位指数表的编制

Establishment of Site Index Table for Black Poplar in Jiangsu Province

地位指数曲线预报有效性的计算机模拟检验

Computer simulation test on the effectiveness of sit index curve forecast

山东省临沂地区杨树人工林地位指数表的编制

Establishment of site-index table for Poplar in Linyi region , shangdong Province

社会关系图中完全地位指数公式补充证明

Addendum Proof of Formula of Complete Status Inden in Sociogram

马尾松造纸原料林地位指数曲线模型

The Curve Model of Site Index for Pinus massoniana Paper Pulp Forest

浙江省杉木实生林多形地位指数曲线模型

Polymorphic Site Index Model for Chinese Fir in Zhejiang Provine

用树干解析资料编制刺槐地位指数曲线

Site index curves for Robinia based on stem analysis data

地位指数表编制的程序设计

Programming for the preparation of the site - index table

中国主要用材树种标准化地位指数函数的研究

Study on the Standard Site Index Model for the Main Species in China

评定林地地位指数的实用公式

Practical formulas for evaluating site index of forest land

江西省马尾松数量化地位指数表的编制

The compilation of masson 's pine quantification site index table for Jiangxi Province

天目山西部杉木多形地位指数表的编制

Preparation of site-index table for Chinese fir in the West Tianmu Mountain Area

福建省火炬松人工林多形地位指数曲线的研究

The Study of Multiple form Site Index Curves of Loblolly Pine in Fujian

当代中国社会的声望分层&职业声望与社会经济地位指数测量

Prestige Stratification in the Contemporary China : Occupational prestige measures and socio-economic index