上海农业学报
上海農業學報
상해농업학보
Acta Agriculturae Shanghai
2015年
5期
47-50
,共4页
AB-DTPA法%经典方法%CaCl2-DTPA法%上海典型土壤%有效态含量
AB-DTPA法%經典方法%CaCl2-DTPA法%上海典型土壤%有效態含量
AB-DTPA법%경전방법%CaCl2-DTPA법%상해전형토양%유효태함량
AB-DTPA method%Classical method%CaCl2-DTPA method%Typical soils of Shanghai%Avail-able content
采用 AB-DTPA 浸提剂联合电感耦合等离子体发射光谱法测定了上海地区48个典型土壤样品中8种元素的有效态含量，并与经典的土壤测定方法进行比较。结果显示：AB-DTPA 法能提取出土壤中大部分有效磷和速效钾，提取率分别为93．0％和98．4％，与经典测定方法达到了极显著相关，相关系数分别为0．917和0.981；无论是土壤营养元素还是污染重金属，AB-DTPA 法测定的有效态含量均高于 CaCl2-DTPA 法；其中AB-DTPA法测定的 Fe、Mn、Cu、Zn、Cd 等5种元素的有效态含量与 CaCl2-DTPA 法均达到极显著相关；AB-DTPA法提取的有效 Pb 与 CaCl2-DTPA 法测定结果也达到了显著相关，但相关系数只有0．325。总体而言，AB-DTPA法适用于上海典型土壤中多种元素的有效态含量分析，但除 P、K 外，其他元素的评价指标应相应提高。
採用 AB-DTPA 浸提劑聯閤電感耦閤等離子體髮射光譜法測定瞭上海地區48箇典型土壤樣品中8種元素的有效態含量，併與經典的土壤測定方法進行比較。結果顯示：AB-DTPA 法能提取齣土壤中大部分有效燐和速效鉀，提取率分彆為93．0％和98．4％，與經典測定方法達到瞭極顯著相關，相關繫數分彆為0．917和0.981；無論是土壤營養元素還是汙染重金屬，AB-DTPA 法測定的有效態含量均高于 CaCl2-DTPA 法；其中AB-DTPA法測定的 Fe、Mn、Cu、Zn、Cd 等5種元素的有效態含量與 CaCl2-DTPA 法均達到極顯著相關；AB-DTPA法提取的有效 Pb 與 CaCl2-DTPA 法測定結果也達到瞭顯著相關，但相關繫數隻有0．325。總體而言，AB-DTPA法適用于上海典型土壤中多種元素的有效態含量分析，但除 P、K 外，其他元素的評價指標應相應提高。
채용 AB-DTPA 침제제연합전감우합등리자체발사광보법측정료상해지구48개전형토양양품중8충원소적유효태함량，병여경전적토양측정방법진행비교。결과현시：AB-DTPA 법능제취출토양중대부분유효린화속효갑，제취솔분별위93．0％화98．4％，여경전측정방법체도료겁현저상관，상관계수분별위0．917화0.981；무론시토양영양원소환시오염중금속，AB-DTPA 법측정적유효태함량균고우 CaCl2-DTPA 법；기중AB-DTPA법측정적 Fe、Mn、Cu、Zn、Cd 등5충원소적유효태함량여 CaCl2-DTPA 법균체도겁현저상관；AB-DTPA법제취적유효 Pb 여 CaCl2-DTPA 법측정결과야체도료현저상관，단상관계수지유0．325。총체이언，AB-DTPA법괄용우상해전형토양중다충원소적유효태함량분석，단제 P、K 외，기타원소적평개지표응상응제고。
The available content of 8 elements in 48 typical soil samples in Shanghai area were determined by AB-DTPA-ICP-OES,and the analysis results were compared with the classical soil testing method.The results showed that the AB-DTPA method could extract most amounts of the available phosphorus and potassium in soils with the rate of 93.0% and 98.4% respectively.The extraction rates of AB-DTPA were very significantly corre-lated with the classical method and the correlation coefficient were 0.917 and 0.981 respectively.The available contents of soil nutrient elements and heavy metals determined by AB-DTPA were higher than that of CaCl2-DTPA.The available contents of Fe,Mn,Cu,Zn and Cd determined by AB-DTPA were very significant correlated with that by CaCl2-DTPA.The available content of Pb determined by AB-DTPA was also significant correlated with that by CaCl2-DTPA,but the correlation coefficient was only 0.325.In general,the AB-DTPA method was applied to the analysis of the effective content of various elements in the typical soil of Shanghai,but the evalua-ting indexes for the soil elements should be improved accordingly except phosphorus and potassium.
