天然次生柞木林凋落物及营养元素变化规律的研究  

A STUDY ON THE CHANGE REGULARITY OF THE LITTERFALL AND NUTRIENT ELEMENT IN NATURAL SECONDARY OAK FORESTS

作　　者：周以良[1] 石福臣[1] 陈祥伟[1] 刘敏娟[1] 张志强 孙世民 

机构地区：[1]东北林业大学 [2]依兰县先锋林场

出　　处：《东北林业大学学报》1990年第S3期7-12,共6页Journal of Northeast Forestry University

基　　金：国家自然科学基金

摘　　要：本文对森林凋落物的概念进行了新的阐述,得出了北温带柞木林的年凋落总量为3.61t/ha·a,低于温带栎木林的年凋落物总量(3.90t/ha·a)而高于寒温带针叶林(0.20t/ha·a)。同时得出北温带柞木林年凋落营养元素总量为123.43kg/ha·a,并对凋落物组分的变化规律、凋落物营养元素的变化规律进行了深入探讨。A new concept of the litterfall was expounded in this paper and the authors considered that the total amoant of litterfall is 3.61t/ha·a in northern temperate oak forests, and it is lower than in temperate oak forests (3.9t/ha·a, and higher than in frigid zone conifer forests 0.2t/ha·a). Meanwhile the total amount of litterfall is 123.432kg/ha·a in nothern temperate oak forests, and further studied the change regularity of the component and nutrient elements of the litterfall.

关 键 词：柞木林 凋落物 营养元素 动态 

分 类 号：S7[农业科学—林学]