山东农业科学
山東農業科學
산동농업과학
SHANGDONG AGRICULTURAL SCIENCES
2015年
4期
83-87
,共5页
土地利用类型%铜%污染%风险控制
土地利用類型%銅%汙染%風險控製
토지이용류형%동%오염%풍험공제
Land use type%Cu%Pollution%Risk control
对陕西省宁陕县旬阳坝镇的菜地、阶地耕地、坡耕地、荒地、林地5种不同土地利用类型的437个土壤样点进行调查分析，探讨土壤铜的累积状况，了解不同土地利用类型下土壤铜含量的差异。结果表明，研究区土壤铜的平均值为24．29 mg／kg，显著高于全国土壤铜浓度背景值（22．60 mg／kg），但未超过铜元素的累积临界值（37．45 mg／kg）。与全国铜浓度背景值相比，5种不同土地利用类型土壤铜出现不同程度的累积，铜平均含量由高到低顺序为：菜地＞阶地耕地＞坡耕地＞荒地＞林地。
對陝西省寧陝縣旬暘壩鎮的菜地、階地耕地、坡耕地、荒地、林地5種不同土地利用類型的437箇土壤樣點進行調查分析，探討土壤銅的纍積狀況，瞭解不同土地利用類型下土壤銅含量的差異。結果錶明，研究區土壤銅的平均值為24．29 mg／kg，顯著高于全國土壤銅濃度揹景值（22．60 mg／kg），但未超過銅元素的纍積臨界值（37．45 mg／kg）。與全國銅濃度揹景值相比，5種不同土地利用類型土壤銅齣現不同程度的纍積，銅平均含量由高到低順序為：菜地＞階地耕地＞坡耕地＞荒地＞林地。
대합서성저협현순양패진적채지、계지경지、파경지、황지、임지5충불동토지이용류형적437개토양양점진행조사분석，탐토토양동적루적상황，료해불동토지이용류형하토양동함량적차이。결과표명，연구구토양동적평균치위24．29 mg／kg，현저고우전국토양동농도배경치（22．60 mg／kg），단미초과동원소적루적림계치（37．45 mg／kg）。여전국동농도배경치상비，5충불동토지이용류형토양동출현불동정도적루적，동평균함량유고도저순서위：채지＞계지경지＞파경지＞황지＞임지。
To analyze soil copper accumulation under different land use types, the investigation was con-ducted in Xunyangba Town of Ningshan District, Shaanxi Province, and 437 soil samples were collected from five kinds of land use types including vegetable land, terrace farmland, slope farmland, wasteland and forest-land.The results showed that the mean of Cu concentration was 24.29 mg/kg in the research area, which was significantly higher than the national background concentration (22.6 mg/kg), but not over the critical con-tent of Cu accumulation (37.45 mg/kg) .Compared to the national background concentration, the Cu accu-mulations were different in different land use types.The average Cu concentration was the highest in vegetable land, and was higher than that in terrace farmland, slope farmland,wasteland and forestland in order.
