兰州市区七叶树土壤养分状况研究  

Primary study on the soil nutrients of Aesculus chinensis in Lanzhou

作　　者：张建旗 程晓月 赵峰 许宏刚 ZHANG Jian-qi, CHENG Xiao-yue, ZHAO Feng, XU(Lanzhou Institute of Landscape Gardening ,Lanzhou 730070, Hong-gang Gans)

机构地区：[1]兰州市园林科学研究所,甘肃兰州730070

出　　处：《草原与草坪》2018年第1期90-96,共7页Grassland and Turf

基　　金：兰州市科技局科技攻关项目(2015-3-40)资助

摘　　要：对兰州市城关区、七里河区、安宁区和西固区的七叶树的立地土壤在春、夏和秋季采用野外调查与室内试验分析相结合的方法,调查研究了其生长环境中的土壤养分状况。通过对相关指标的测定以及对各项指标的综合分析,结果表明:(1)土壤养分状况表现为:春季>夏季>秋季,pH表现为,秋季>夏季>春季;(2)4个区域的土壤养分状况不尽相同,从高到低顺序依次为:城关区>七里河区>安宁区>西固区。除速效K外,有机质、水解N、有效P的含量整体较低,pH整体较高,土壤质量较差。The soil samples of the street tree （Aesculus chinensis） in four main areas of Lanzhou City were collected in spring, summer and autumn to investigate the soil quality. The results showed ; 1） The order of soil nutrient status in three seasons from high to low was as follows, spring〉 summer〉 autumn,the change of pH was as follows： autumn〉 summer〉 spring;2） The order of the soil nutrient status of four areas from high to low was as follows. Chengguan 〉 Qilihe〉 Anning 〉 Xigu. Except available K,the contents of organic matter, available N and available P were low,the pH was higher and the soil quality was poor.

关 键 词：兰州市区 七叶树 土壤养分 

分 类 号：S158[农业科学—土壤学]