南京林业大学学报（自然科学版）2017，Vol.41Issue(2)：1-8,8.DOI:10.3969/j.issn.1000-2006.2017.02.001
从适地适树到适钙适树的理论与例证
From matching site with trees towards matching calcium with trees
摘要
Abstract
"Matching site with trees" is a fundamental principle in silviculture. It refers to finding the right tree species for a given site, or finding the right site for a given tree species for a maximum tree growth. This matching of tree species with site was conventionally achieved through correlation analyses between tree growth ( typically tree height) and empir?ically chosen site physicochemical variables ( including topographical, soil and climatic parameters) with subsequent site quality classification for high, medium, fare and poor tree?growth sites. Noticeably, physicochemical variables used for evaluating site quality vary with evaluators, locations and tree species, thus the approach for site quality evaluation is unreplicatable and unscientific. Here we propose using site calcium supply potentials as an unified site quality index. A site is suited for a tree species, or a tree species grows well in a site, when a tree's calcium demand for a maximum growth coincides with the site calcium supply potential. Based on this principle, we calculated the calcium supply poten?tials for Liaoning Province of China. Using leaf tissue calcium concentration we estimated the growth index of cross sec?tion area at DBH for Liaodong oak ( Quercus liaotungensis Koidz) . This index correlated notably well with the forestry in?ventory data in permanent plots spaced at 4 km×8 km across Liaoning Province. Our analyses demonstrated that calcium supply potential can reflect site quality for silvicultural practices, and the principal foci for"matching site with trees" is"matching calcium with trees".关键词
适地适树/适钙适树指数/土壤钙供应潜力/立地分类/辽东栎Key words
matching site with trees/index for matching calcium with trees/soil calcium supply potentials/site classifi⁃cation/Quercus liaotangensis Koidz分类
农业科技引用本文复制引用
周永斌,邹晓明..从适地适树到适钙适树的理论与例证[J].南京林业大学学报（自然科学版）,2017,41(2):1-8,8.基金项目
国家林业公益性行业科研专项项目(201304216) （201304216）
