摘要
研究了海南岛热带地区弃荒农田次生植被恢复特点 ,结果表明在热带多雨地区弃荒农田的植被演替过程中 ,植物种数增加的速度较快 ,α多样性指数的增加是比较明显的 ;β多样性变化较强烈的阶段是在草本植物群落与灌丛的过渡区 ,这说明在弃荒农田的植被恢复过程中 ,草本植物群落与灌丛生态过渡区是植物种类增加较快和更替较快的区域。比较弃荒农田植被类型的植物成分百分比与典型原始林和次生林的现有植物成分的百分比 ,预计热带多雨地区弃荒农田 10 0～ 12
Plant species richness and diversity ( α-diversity) increased rapidly in succession from grassland to a successio nal woodland on abandoned agricultural fields in tropical Hainan. The β-di versity index of the different vegetation types showed the greatest change (β C and β R increased while C S and C N decreased) in the tran sition f rom grassland to shrub land. Plant species arose and were replaced quickly in th e transition zone. Analysis of the relationship between the components of the su ccessional stages and the secondary closed forest suggested that 100 to 120 year s will be required for succession from an initial grassland stage (abandoned fie lds ) to secondary forest.
出处
《植物生态学报》
CAS
CSCD
北大核心
2000年第4期477-482,共6页
Chinese Journal of Plant Ecology
基金
国家自然科学基金重点项目 !( 4 963 10 10 )
海南省自然科学基金项目!( 3 960 1)
