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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 paper investigated the growth of Pinus tabulaeformis and Pinus sylvestris var.mongolica in the area of Yijinhuoluoqi, the effects of the two on soil nutrients, the moisture content and biomass of the plants and their distribution in the various components of the organism, The results showed that the growth of Pinus sylvestris var. Mongolica in this area was obviously better than that of Pinus tabulaeformis. The two kinds of tree species planted in this area had the trend of decline of soil fertility and promoted the coniferous and broad-leaved mixed forest. The transpiration rate In conclusion, the drought resistance of Pinus tabulaeformis is stronger than that of Pinus sylvestris var. Mongolica, but both of them are weakly transpiration tree species. And the ecological and economic benefits of Pinus sylvestris var. Mongolica are higher than those of Pinus tabulaeformis, Pinus sylvestris.