武夷山自然保护区杉木天然林土壤肥力的研究

通过对武夷山自然保护区杉木天然林土壤肥力的研究及溪后杉木速生丰产林土壤肥力比较,结果表明:①杉阔天然林和杉木天然林土壤肥力均较高,天然林能培肥土壤,杉阔天然林的培肥地力的能力比杉木天然纯林好;②武夷山天然林土壤肥力远较溪后安曹下杉木丰产林为高,这与两者起源不同有关,人为干扰无疑加剧森林生态系统大量营养元素损失;③留阔植杉(栽杉保阔)及选择合适阔叶树作为杉木伴生树种营造针阔叶混交林,是杉木产区维持林地地力的良好对策之一。

Studies on the Soil Fertilities of Natural Stand of Chinese Fir in Wuyl Nature Reserve

This paper deals with research work for soil fertilities of natural stand of Chinese fir in Wuyi Nature Reserve in comparison with the soil fertilities of Fast-growing and High-yield plantation of Chinese fir. The results show that both natural mixed stand of Chinese fir and broad leaves tree and pure stand of Chinese fir have higher soil fertilities; that the natural stand can fertilize soil,with the natural mixed stand having a better fertilization ability than pure stand; and that soil fertilities of natural stand of Chinese fir in Wuyi is far better than that of Fast-growing and High-yield plantation of Chinese fir in Aihou Anchaoxia, which has something to do with their origins. And a large losses of nutrition element for forest ecological system is being aggrevated by man-disturb. Thus it is a good way to keep soil fertilities in the areas of Chinese fir by keeping broad leaves trees among Chinese fir and to select suitable broat leaves trees for planting mixed stands of Chinese fir and broad leaves trees.