单 位：
上海市园林科学研究所;上海市园林科学规划研究院;东北林业大学
关键词：
AB-DTPA法;CaCl2-DTPA法;土壤;元素;有效态含量
摘 要：
采用AB-DTPA浸提剂和电感耦合等离子体发射光谱法分析测定了上海土壤样品中8种元素的有效态含量,并与CaCl2-DTPA法比较,结果显示:AB-DTPA法分析土壤Cu、Zn、Mg、Ni、S、Cr、Mo和As 8种元素的有效态含量均高于CaCl2-DTPA法;其中AB-DTPA法测定Cu、Zn、Mg、Ni、S、Cr、Mo 7种元素的有效态含量与CaCl2-DTPA法均达到极显著相关;而AB-DTPA,CaCl2-DTPA两方法测定土壤有效态的As几乎不相关。结果表明:AB-DTPA法对这8种元素有效态的浸提率高于CaCl2-DTPA法,而两者的分析结果大多相关性好,由此可见,AB-DTPA法更适用于土壤此8元素有效态含量的分析测定。表8,参16。
译 名：
Analysing the Available Content of Eight Elements in Soil from Shanghai by AB-DTPA and CaCl_2-DTPA Method
作 者：
SUN Ming-di;FANG Hai-lan;HAO Guan-jun;ZHOU Jian-qiang;CUI Xiao-yang;School of Forestry,Northeast Forestry University;Shanghai Landscape Gardening Research Institute;
关键词：
AB-DTPA method;;CaCl2-DTPA method;;soil;;elements;;available contents
摘 要：
Soil samples from Shanghai region were selected to determine the available content of eight elements by combining the ammonium bicarbonate-DTPA extraction and the inductively coupled plasma atomic emission spectrometry. The analysis results were also compared with the method of CaCl2-DTPA. The results showed that the available content of Cu,Zn,Mg,Ni,S,Cr,Mo,As by the method of AB-DTPA was greater than that of the method of CaCl2-DTPA. The available contents of the seven elements including Cu,Zn,Mg,Ni,S,Cr,Mo determined by the method of AB-DTPA got an extremely significant correlation with that by CaCl2-DTPA method. But the available content of as determined by the AB-DTPA method got nearly no significant correlation with that of the CaCl2-DTPA method. The results showed that the extraction rates of the available content of the eight elements by the AB-DTPA method were higher than the CaCl2-DTPA method,and most of the two methods analysis had a significant correlation. So the AB-DTPA method could get a better result to determine the available contents of the eight elements in soils than the CaCl2-DTPA method.
