Growth Differential Analysis on Single and Mixed Communities of Phragmites australis and Suaeda salsa in the Yellow River Delta
The growth status of single and mixed communities of Phragmites australis and Suaeda salsa was surveyed under natural conditions to study the growth differences,dynamics and strategies in single and mixed communities.The results showed that growth trend of P.australis in mixed community was similar to that in single community in the biomass and population density.The biomass of P.australis in mixed community was higher than that in single community before September,while the density was lower.The growth trend of P.australis in mixed community was different from that in single community in stem diameter and total leaf area.The stem diameter presented increasing trend,while the total leaf area was fluctuating type.The growth trend of S.salsa in mixed community was the same with that in single community in height,relative growth rate,total leaf area and biomass.The total leaf area of S.salsa in mixed community was lower than that in single community,but the biomass was higher after June.The density and productivity of S.salsa in single community were unimodal type and higher than those in mixed community.The growth differences between P.australis and S.salsa illustrated that they showed different growth strategies in single and mixed communities and their relationship would change with the improvement of habitat.
Phragmites australisSuaeda salsaSingle communityMixed communityGrowth dynamicGrowth strategyThe Yellow River Delta
国家科技期刊平台
NSTL
万方数据
维普
