湖北农业科学
湖北農業科學
호북농업과학
2014年
12期
2776-2779,2780
,共5页
赵彦博%阎文志%闫红伟
趙彥博%閻文誌%閆紅偉
조언박%염문지%염홍위
土壤污染%绿化植物%净化能力%预测%滨海公路
土壤汙染%綠化植物%淨化能力%預測%濱海公路
토양오염%녹화식물%정화능력%예측%빈해공로
soil pollution%greening plants%purification ability%prediction%coastal highway
对辽宁滨海公路路域土壤污染进行了调查，确定了土壤污染的空间范围，并利用数学模型计算了绿化植物净化土壤的平均能力。结果表明，在距公路40 m的垂直距离范围以内，重金属含量相对较高；重金属含量峰值出现在路基处，在距公路20 m或30 m处出现次高峰；各重金属主要积累在0~20 cm土壤；Cd是制约公路全线绿化的关键元素，建议选择对Cd富集系数较大的植物进行全线绿化；除Cd以外，Pb、Cu、Zn可在一年内被一般绿化乔木的根系吸收。
對遼寧濱海公路路域土壤汙染進行瞭調查，確定瞭土壤汙染的空間範圍，併利用數學模型計算瞭綠化植物淨化土壤的平均能力。結果錶明，在距公路40 m的垂直距離範圍以內，重金屬含量相對較高；重金屬含量峰值齣現在路基處，在距公路20 m或30 m處齣現次高峰；各重金屬主要積纍在0~20 cm土壤；Cd是製約公路全線綠化的關鍵元素，建議選擇對Cd富集繫數較大的植物進行全線綠化；除Cd以外，Pb、Cu、Zn可在一年內被一般綠化喬木的根繫吸收。
대료녕빈해공로로역토양오염진행료조사，학정료토양오염적공간범위，병이용수학모형계산료녹화식물정화토양적평균능력。결과표명，재거공로40 m적수직거리범위이내，중금속함량상대교고；중금속함량봉치출현재로기처，재거공로20 m혹30 m처출현차고봉；각중금속주요적루재0~20 cm토양；Cd시제약공로전선녹화적관건원소，건의선택대Cd부집계수교대적식물진행전선녹화；제Cd이외，Pb、Cu、Zn가재일년내피일반녹화교목적근계흡수。
Soil pollution was investigated and the spatial scope of it was determined in the roadside of coastal highway in Liaoning province. The average ability of purification of greening plants was calculated by mathematical model. Results showed that contents of heavy metals was high within the scope of 40 m vertical distance from highway and 20~30 m distance was in its common peaks. The main accumulation of heavy metals was in the surface soil of 0~20 cm depth. Cd was the key elements of restricting the whole highway greening. The choice of plants larger for Cd enrichment coefficient was recommended for the whole greening. In addition to Cd, Pb Cu Zn could be absorbed by general greening tree roots in one year. The critical value of these heavy metals could be absorbed by trees.
