摘要
本文是广西森林生态定位研究工作的一部分,旨在研究、弄清不同森林凋落物的数量和质量、组成和动态及其与森林组成、树种特性、年龄结构、空间结构、生长状况及环境因子间的相互关系,为分析森林群落的生产力、研究森林群落的养分循环和制定营林措施提供理论依据。一、自然环境和样地概况研究工作在广西龙胜、岑溪、宜山三个森林生态定位站进行(表1)。
A long-term and stationary observation on litter production of 5 forest types which distribute widey and are representative in subtropical zone in China was made. The results show that the annual litter production of various stands was different, the evergreen broadleaved forest was maximum (7.99t/ha) and Cunning hamia lanceolata forest was minimum (4.25t/ha). As a given forest type, the litter fraction had a certain rate, the percentage of leaf fraction is more steady than others. In Quercus forest, leaf fraction was 76％ of annual total litterfall and C. lanceolata forest only was 51％. The litter production of forest varied with stands, the dynamic pattern of litterfall was determined by the genetic characteristics of species and the stand condition, the regression equations between litter production and climatic factors were derived.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1989年第6期542-548,共7页
Scientia Silvae Sinicae
关键词
亚热带
森林
凋落物
动态
气候因素
Subtropical forest
Litterfall
Dynamics
Climatic factors
Correlative analysis
