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我们通过在浙江安吉县的土壤调查,用因子分析、聚类分析和回归分析方法对竹林土壤和竹子生长之间的关系作了研究。结果表明,竹林土壤可划分为高生产力与低生产力两种类型,两者以毛竹眉围30厘米为界限。有机质、土壤质地、通气性、盐基代换量及土层厚度是影响竹子生长的主要因子,其中,影响毛竹生长的最主要因子是氮。因此,在竹子生长期增施有机肥和氮素化肥是改造低产竹林的有效措施。
Through the soil survey in Anji County, Zhejiang Province, we used factor analysis, cluster analysis and regression analysis to study the relationship between bamboo soil and bamboo growth. The results showed that the bamboo forest soil can be divided into two types of high productivity and low productivity, both of which are within 30 cm of the bamboo hairbrush. Organic matter, soil texture, aeration, base substitution and soil thickness are the main factors that affect the growth of bamboo. Among them, the most important factor affecting the growth of bamboo is nitrogen. Therefore, the application of organic manure and nitrogen fertilizer in the bamboo growing period is an effective measure to transform low yield bamboo forest.