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林内雨的养分含量,愈来愈受到森林工作者的重视。它不仅与土壤的养分循环和平衡有直接关系,而且反映了森林生长的一般生态条件和生理特性。林内雨是降雨和树冠截留量之差。它的养分含量和树种、雨量及元素的淋溶特性有关,又随季节变异。中国南方高温多雨,土壤富铝化作用强烈,盐基流失严重。生物循环对森林生长特别重要,而树冠淋洗便是养分循环主要途径之一。为了估计林内雨的养分含量,特别选择了两种生长在热带红壤地区的森林为研究对象,比较它们树冠淋洗的特性、意义和季节变化。
Forest nutrient content of the rain, more and more attention by forest workers. It is not only directly related to soil nutrient cycling and balance, but also reflects the general ecological conditions and physiological characteristics of forest growth. Lin rain is the difference between rainfall and canopy interception. Its nutrient content and tree species, rainfall and element leaching characteristics, but also with the season of variation. South China is hot and rainy with strong soil aluminum enrichment and serious loss of salt basins. Biological cycling is particularly important for forest growth, and canopy leaching is one of the main ways of nutrient cycling. In order to estimate the nutrient content of rainy forest, two forests were selected to study the characteristics, significance and seasonal changes of canopy leaching.