摘要
光皮桦林是常绿阔叶林或山地常绿落叶阔叶混交林遭受砍伐后,在保护较好的情况下自然恢复起来的一种演替系列群落,属亚热带落叶阔叶林的一种类型。本文通过群落分类研究,划分出3个群丛纲和11个群丛。从这些群丛的外貌、结构和种类成分的变化,可确定其演替的趋向和所处阶段,是合理经营管理它的科学依据。
Betula luminifera forest is a seral stage of evergreen broadleaf forest and mountainous mixed evergreen and deciduous broadleaf forest seres, mainly occurs in yellow soil mountain of north Guangxi at elevation of 700~1 300 m, and stretching right to the yellow brown soil mountain of laoshan in Tienlin county at elevation of 1 400~2 000 m toward southwest 3 Association classes and 11 Associations are described as follows: 1 Young growth of Betula luminifera with single tree layer 11 Betula luminifera-Dicranopteris dichotoma Association; 12 Betula luminifera-Melastoma polyanthum-Dicranopteris dichotoma Association; 13 Betula luminifera-Gaultheria yunna- nensis-Dicranopteris dichotoma Association; 2 Middle ageforest of Betula luminifera with two tree layers 21 Betula luminifera-Diospyros lotus-Eurya nitida-Dicranopteris dichotoma + Wood-wardia japonica Association; 22 Betula luminifera-Clethra kaipoensis-Blastus cochichinensis-Woodwardia japonica Association; 23 Betula luminifera + Alniphyllum fortunei-Hydrangea paniculata-Woodwardia japonica + Miscanthus floridulus Association; 24 Betula luminifera-Itea chinensis-Maesa japo- nica-Woodwardia japonica Association; 25 Betula luminifera-Rhus chinensis-Viburnum cylin- dricum-Miscanthus floridulus Association; 3 Mature forest of Betula luminifera with three tree layers;31 Betula luminifera + Carpinusfargesii- Rhododendron cavaleriei + Eurya impressinervis-Maesa japonica-Woodwardia japonica Association; 32 Betula luminifera-Eurya impressinervis -Blastus dunnianus-Woodwardia japonica Association; 33 Betula luminifera + Schima argentea-Clethra kaipoensis + Distylium myricoides -Blastus cochinchinensis-Woodwardia japonica Association Its successional trend toward recovering evergreen broadleaf forest can be fully proved through information analysis of community physiognomy, structure and species composition change between 11 Associations
出处
《广西植物》
CAS
CSCD
北大核心
1998年第2期123-128,共6页
Guihaia
关键词
亚热带
落叶阔叶林
光皮桦林
群落分类
演替
Subtropical deciduous broadleaf forest
evergreen broadleaf forest
montainous mixed evergreen and deciduous broadleaf forest
Betula luminifera forest
community classification