林业科学Issue(4):47-54,8.DOI:10.11707/j.1001-7488.20140407
秦岭地区栓皮栎天然次生林地位指数表的编制
Establishment of a Site Index Table for Quercus variabilis Natural Secondary Stand in Qinling Mountains
摘要
Abstract
This paper aims to build a site index table through mathematical models established with the relationships of age and height of the dominant individuals,so as to evaluate the site quality of the whole Qinling region. Totally 104 sample plots in a Quercus variabilis natural secondary stand on southern and northern slope in Qinling Mountains were selected,and 498 pairs of height-age relations data of 75 analytic and average dominant individuals were collected. Statistical software of ForStat 2. 0 and SPSS 18. 0 were used. The height-age curve model,lgH = -0. 014 6 + 0. 743 8lgA,was selected out of 12 mathematical models,with the reference age of 35 years and exponential distance of 2 meters. Six site index curves (10 -20 m) of the Q. variabilis natural secondary stand were developed through the method of standard deviation adjustment. Eventually, the site index table for the Q. variabilis natural secondary stand was established. The table has high accuracy validated by the following four methods: correlation coefficient,X2 test,test of falling point and test of height growth increment. Thus,this method could be used on Q. variabilis natural secondary stand site evaluation in Qinling region.关键词
栓皮栎/天然次生林/地位指数表/立地质量评价Key words
Quercus variabilis/natural secondary stand/site index table/site quality evalucation分类
农业科技引用本文复制引用
张瑜,贾黎明,郑聪慧,张西..秦岭地区栓皮栎天然次生林地位指数表的编制[J].林业科学,2014,(4):47-54,8.基金项目
北京市教育委员会科学研究与科研基地建设项目( SYSBL2009) ( SYSBL2009)
国家林业局林业科技成果推广项目(2011-44) (2011-44)
林业公益性行业科研专项经费项目(201004021)。 (201004021)