生物量与其影响因素之间关系的研究

对近些年来有关生物量与其影响因素的研究作了综合介绍，根据影响机制可把这些因素分为两大类，即外源的环境变量和内源的基因型和表现型变量，前主要包括水分和矿质养分等，后包括形态变量、生理变量和生化变量，但哪种因素能成为限制生物量的因素则依具体情况而定，如养分是农作物的限制因素之一，而对苔藓植物却汉有很大影响，因而了解这些研究能为产量预报及实现农林牧的优化管理提供理论依据和技术参数。

The Studies on the Relation between the Biomass and the Factors Influncing It

Recent years, there are many studies on the biomass and the factors influencing it.Based on the influential mechanism of each factor,we divide them into two categories:exogenous-environmental-variables and endogenous-genotypic and phenotypic-variables.The former includes water,mineral nutrition ,etc.The second category can be divided further into morphological,physiological and biochemical factors. But which factor will be the restrain one depends on the fact.For example,the mineral elements are important to the agricultural plants,while moss is not so sensible to them.Therefore these studies will provide the theoretical base and technical reference to foreshow the products and realize the better administration in agriculture,animal husbandry and forestry.