Assessment on the Plantation Stand Quality in the Forest Area of Zhongtiao Mountain
Based on the data obtained from 44 sampled plots within 12 forest farms in Zhongtiao Mountain during the national forest inventory.using set-pair analysis,the stand qualities were analyzed from the aspects of stand soil,stand structure,tree species diversity and stand productivity.The results showed that the relative similarity degree varied from 0.292 2 to 0.840 6.The higher stand quality included Pinus armandii + Acer rmono fixed plantation,Platycladus orientalis + Pistacia chinensis fixed plantation,Populus davidiana + Prunus sibirica fixed plantation,P.armandii + P.tabulae f ormis fixed plantation and P.bungeana+ P.tabulaeformis fixed plantation,and their values of relative similarity degree were 0.840 6,0.752 5,0.744 1,0.739 0 and 0.698 0,respectively;and that of the zonal forest type of P.tabulaeformis+ Quercus wutaishanica fixed plantation was in the medium level,and those of P.orientalis pure plantation and Robinia pseudoacacia pure plantation were the worst.From the view of construction tree species,the quality order from high to low were P.armandii ＞ P.bungeana ＞ P.davidiana ＞ P.tabulaef ormis ＞P.orientalis＞R.pseudoacacia.The set-pair analysis objectively assessed stand quality of main afforestation tree species,and some cultivation and management advices were proposed according to the various assessment grades.
国家科技期刊平台
NSTL
万方数据
维普
