伊金霍洛旗樟子松和油松引种试验对比研究

Comparative study on the introduction of Pinus sylvestris var.mongolica and Pinus tabulaeformis in Ejin Horo Banner, Inner Mongolia

该文调查了伊金霍洛旗地区的油松和樟子松生长状况、二者对土壤养分的影响、植株的含水率和生物量以及其在生物体各构件中的分配 ,并测定分析了植物体的蒸腾速率 .结果表明 :该地区的樟子松的生长状况要明显好于油松 ;该地区种植这两种树种有出现地力衰退的趋势 ,提倡营造针阔叶混交林 ;从蒸腾速率来看 ,油松的抗旱性要比樟子松强 ,但二者都是弱蒸腾树种 ,且樟子松所具有的生态和经济效益较油松的高 ,在该区沙地应更提倡营造樟子松 .

This study is based on the investigation and analysis of the growth state,soil nutrient and soil moisture content,plant moisture content,biomass and their distribution in different organs,and the transpiration rate of Pinus tabulaeformis and Pinus sylvestris var. mongolica in Ejin Horo Banner, Inner Mongolia.The results show that Pinus sylvestris var. mongolica in this area grow better than Pinus tabulaeformis ;the planting of the two species up till now has not cause land capability decline however has some trend,planting broad leaved mixed forest could avoid this tendency; Pinus sylvestris var. mongolica will be more suitable plant which can be widely planted in this sandy area for its higher ecological and economic benefits.