伏牛山地区栓皮栎天然次生林地位指数表的编制  

Establishment of Site Index Table for Quercus variabilis Natural Secondary Forest in Funiushan Mountainous Area

作　　者：祝维 张西 贾黎明[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《东北林业大学学报》2017年第12期32-37,共6页Journal of Northeast Forestry University

基　　金：北京林业大学青年教师科学研究中长期项目(2015ZCQLX02);北京市教育委员会科学研究与科研基地建设项目(SYSBL2009)

摘　　要：编制了伏牛山地区栓皮栎天然次生林地位指数表,以期为当地栓皮栎天然次生林后期的森林经营和天然林保护工作奠定基础。从伏牛山南北坡88株平均优势木解析木数据获得了619对树高—年龄数据对,用SPSS软件对优势木平均树高与年龄的关系进行拟合,从而获得导向曲线方程。根据各龄阶树高变动系数(CH)及标准差(SH)的变化幅度确定基准年龄,根据基准年龄时的优势木树高绝对变动幅度(ΔH)与指数级数量(n)的比值确定指数级距,采用标准差调整法导出地位指数曲线。从9个常用的数学模型中选定对数曲线式模型作为导向曲线;确定基准年龄为45 a,指数级距为1 m;以15指数级树高为基准导出了9~18 m共10条地位指数曲线,最终通过上限排外法编制了伏牛山地区栓皮栎天然次生林的地位指数表。经χ2检验和落点检验后证明所编地位指数表精度较高,能够客观地评价伏牛山地区栓皮栎天然次生林的立地质量。In order to lay the foundation for the later forest management and natural forest protection program,we established the site index table for Quercus variabilis natural secondary forest in the Funiu Mountain area. In this study,619 height-age data from 88 analytic and average dominant individuals which grow in the southern and northern slopes of the Funiu Mountain were used to construct oriented curve with the software of SPSS. The datum age was ensured according to the varied range of variation coefficient and standard deviation of tree height in various ages. The exponential distance was ensured according to the ratio of absolute the varied range of dominant tree height at the datum age to the number of exponential. The site index curves were developed by using the method of standard deviation adjustment. Logarithmic curve model was selected as oriented curve from nine mathematical models. The datum age was 45 a,and the exponential distance was 1 m. Ten site index curves( 9-18 m) were developed on the base of the tree height in the fifteenth site index. Eventually,the site index table for Q. variabilis natural secondary forest in the Funiu Mountain area was established. The table was demonstrated to be of high accuracy tested by the χ~2 test and falling point test. This site index table is accurate in evaluating the site quality of Q. variabilis natural secondary forest in the Funiu Mountain area.

关 键 词：伏牛山地区 栓皮栎 天然次生林 地位指数表 立地质量评价 

分 类 号：S757.1[农业科学—森林经理学]