摘要
通过对科尔沁沙地典型区域农牧交错带气候、土壤、植被以及天然草地类型的调查,在调查区内共布设52个样点,根据土壤的酸碱度、有机质和养分状况,运用SAS语言进行聚类分析,将这52个样点按照由边缘到中心的顺序分为3类:即外围沙丘带土壤类,中央过渡带土壤类和内部草甸带土壤类,结果表明,3类土壤的化学特性呈现出由边缘到中心递增的趋势,但土壤的养分含量总体水平不高。
The soil was devided into three types according to the value pH, organic matter and nutrition through the investigation of climate, soil, vegetation and natural grassland type in the area, and the conclusion was that the chemical characteristics has an increasing trend from the border to the center. But the total content of nutrition element is in a low level.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2005年第2期35-38,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
内蒙古"十五"重点科技攻关项目(20020706)
关键词
科尔沁沙地
土壤化学特性
聚类分析
Kerqin desert
soil chemical characteristics
clustering analysis
