对广东省罗定市泗纶镇沙罗竹人工林生长与地形因子和土壤理化性质之间的关系进行了分析研究.结果表明,地形部位、坡型、坡向、土壤质地、立竹密度等对沙罗竹平均胸径有显著影响;沙罗竹平均胸径与土壤水分、有机质、全氮、速效氮、速效磷、有效硅质量分数呈显著正相关关系.回归分析结果表明,土壤有机质、速效氮、速效磷、有效镁质量分数及其组合是影响沙罗竹生长的主要养分因子.研究结果对沙罗竹林地选择和制定营林管理措施具有科学指导意义.%The relation of the growth of Schizostachyum funghomii McClure plantation to topographical factors and soil physico-chemical properties was analyzed and discussed in this paper. Results showed that the topographical position, slope types,slope aspects, soil texture, living bamboo density, etc., had significant effects on the average diameter at breast height ofS. funghomii;and the diameter was significantly and positively related to the contents of soil water, organic matter, total nitrogen, rapidly available nitrogen, rapidly available phosphorus, and available silicon. The regression analysis revealed that the contents of soil organic matter,rapidly available nitrogen, rapidly available phosphorus, available magnesium and their combination were the main nutrient factors that influenced the growth of S. funghomii. The research results have the significance for the selecting of S. funghomii stand and the making of silvicultural measures.
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