摘要
一、引言植物各器官的凋落,是一种明显的衰老特征。凋落,是其生物学特性的物候反应,是一种适应性。因而,凋落是有周期性的,是可以用数学模型表达的。这种模型一经建立,对研究森林生态系统的物质循环与能量交换过程很有意义。对年内植物凋落量的测定,前人也作了详细的工作,对多年间林地有机质的动态变化也有深入研究。笔者在测定六盘山林区各林型植物凋落特性的基础上,对凋落动态的年内特性,进行了详细研究。
A mathematical model is developed in the paper based on measurement of litterfall in the forests. This model can describe the litterfall process including its amount and rate in a year. Its parameters are easy to be calculated and its accuracy is very satisfactory. It is somewhat similar to the logistic equation in form.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1989年第2期162-166,共5页
Scientia Silvae Sinicae
