【摘要】 影响森林健康的因素有很多,其中土壤肥力是最主要的因素之一。土壤肥力对森林生产力具有决定性的影响,持久地维持和提高土壤肥力是森林生态系统稳定和林业可持续发展的重要因素。对东至县梅城林场、金寺山林场马尾松林土壤肥力与生长状况进行了测定比较,结果表明:土壤容重与树木胸径、冠幅、新梢粗度及针叶长度生长呈负相关,差异均达到极显著水平(p值=0.0001);土壤含石量与树木胸径、冠幅和新梢粗度生长呈负相关,差异显著(p值=0.0001),但与针叶生长关系不显著(p值=0.0957);土壤含水量与各项生长指标呈正相关,并都达到了显著水平(p值=0.0001)。该研究结果揭示了为提高马尾松林分生产力,在立地质量较差的林地上,应考虑土壤肥力的测定和选择。更多还原

【Abstract】 Forest health is affected by many factors, soil fertility being one of the most important factors. Soil fertility has deciding effect on teh growth of forestry and permantly maintaining and improving soil fertility is an imprtant factor for teh stability of forestry ecology system and sustainable development of forestry. This papercompares pine forest soil fertility and growth of Dongzhi County Meicheng Forestry Farms and Jinshanshi Forestry Farm. The results showed that soil bulk density was negatively correlated with and diameter of trees, Crown, shoot diameter and length of needles growth, the difference reaching a significant level(p=0.0001); Volume of soil was negatively correlated significantly(p=0.0001) with stone diameter trees, the Crown and shoot growth of crude, coniferous growth being not significant(p=0.0957). The soil moisture growth indicators were positively correlated, and have reached a significant level(p = 0.0001). In order to improve the growth of masson pine in the barren soil, we must pay attention to determination and choice of the soil fertility of forests.更多还原