摘要
The controlling effects on Spartina alterniflora through planting various densities of Sonneratia apetala were studied conducted.The results showed that with the increasing forest density of S.apetala,S.alterniflora were more effectively controlled,especially in the planting density of 2 200 ind·hm-2.In the 2 200 ind·hm-2 forest,the light intensity was 50% of that on the non-forest meadow;the S.alterniflora coverage degree and density were less than 5%;the S.alterniflora height declined to 64%;and the above-ground biomass of S.alterniflora decreased to 9.1%,while the below-ground biomass to 27.2%.The net photosynthetic rate,stomatal conductance and transpiration rate of S.alterniflora leaves in the 2200 ind·hm-2 forest were only 26.8%,33.1% and 52.6% of those in the non-forest meadow,respectively.S.alterniflora almost subsided from the dense S.apetala forest.
The controlling effects on Spartina alterniflora through planting various densities of Sonneratia were studied conducted. The results showed that with the increasing forest density of S. apetala, apetala S. alterniflo were more effectively controlled, especially in the planting density of 2 200 ind · hm^-2. In the 2 200 ind · hm ^ -2 forest, the light intensity was 50% of that on the non-forest meadow; the S. alterniflora coverage degree and density were less than 5% ; the S. decreased to 9.1%, while and transpiration rate of S. alterniflora height declined to 64% ; and the above-ground biomass of S. alterniflora the below-ground biomass to 27.2%. The net photosynthetic rate, stomatal conductance alterniflora leaves in the 2200 ind · hm^-2 forest were only 26.8%, 33.1% and 52.6% of those in the non-forest meadow, respectively. S. alterniflora almost subsided from the dense S. apetala forest.
出处
《林业科学研究》
CSCD
北大核心
2009年第4期603-607,共5页
Forest Research
基金
国家"十一五"林业科技支撑计划专题(2006BAD03A1402)
广东省科技厅项目(2007B080701016
2004B50201002)
中国林科院热林所中央级公益性科研院所基本科研业务费专项资金(2008-03)
广东省林业科技创新专项资金项目(2008KJCX2-03)
关键词
无瓣海桑
互花米草
淇澳岛
生物入侵
生态控制
Sonneratia apetala
Spartina alterniflora
Qi'ao island
biological invasion
ecological control