【摘要】 本研究采用定点调查的方法 ,连续 2年对隔离带桧柏生长状况进行的调查分类 ,与此同时还在不同长势地段进行的土壤剖面调查 ,土壤理化性状分析 ,以及病虫害调查等项工作 .结果表明 ,在绝大多数情况下 ,桧柏长势差的原因是由于不良的土壤物理性状造成的更多还原

【Abstract】 Plant and soil samples were collected and soil profiles were investigated at the fixed sites along the Highway of Beijing International Airport. Physical and chemical characters from soil were analysed. The results showed that growth of Sabina chinensis was closely related to the physical character.更多还原