【作者】 冯金飞； 赵健； 张卫建； 卞新民；

【Author】 Feng Jinfei~1,Zhao Jian~1,Zhang Weijian~(1,2),Bian Xinmin~(*1) (2.Institute of Applied Ecology,Nanjing Agricultural University,Nanjing 210095,China;2. Institute of Crop Science,Chinese Academy of Agricultural Sciences,Beijing,10081,China)

【机构】 南京农业大学应用生态研究所； 中国农业科学院作物科学研究所；

【摘要】 本文以沪宁高速公路为例,对沪宁高速沿线三个典型路段两侧土壤和大米中Pb含量的空间分布特征进行了分析。结果表明,受风向的影响,三个路段路南土壤Pb含量大于路北土壤Pb含量,而路南大米Pb含量低于路北大米Pb含量;不同路段两侧土壤和大米Pb含量随着与公路距离的增加先增加再逐渐降低,土壤和大米的污染范围随着车流量的增加而扩大。除了考察沿线土壤重金属含量之外,高速公路沿线农产品产地环境评价还应综合考虑风向、车流量等因素。更多还原

【Abstract】 The spatial distribution difference of the concentrations of lead in the soil and rice at three sampling transects alongside the Shanghai-Nanjing Expressway was analyzed.Results indicated that the concentrations of lead in the soils at south side of the road were higher than north,but the concentrations of lead in the rice were opposite due to the impact of wind.Lead concentrations in the soil and rice increased to a peak firstly along with the distance of the road and then gradually showed downtrend.The contaminated area alongside the road was extended with the increasing of traffic density.Besides the heavy metal contents in the soil,the environmental quality assessment of agricultural producing area should also consider wind direction,traffic density and other factors.更多还原