山东寿光不同农业利用方式下土壤铅的累积特征

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 环境修复研究室

	山东寿光不同农业利用方式下土壤铅的累积特征
	李莲芳; 曾希柏; 白玲玉; 李树辉
刊名	农业环境科学学报
	2010
卷号	29 期号:10 页码:1960-1965
关键词	农业土壤铅设施菜地
ISSN号	1672-2043
其他题名	Characteristics of Lead Accumulation in Soils Under Different Agricultural Utilization Pattern in Shouguang of Shandong Province, China
英文摘要	采用田间实地调查,地统计学和ICP-MS等方法,研究了基于GIS分析的山东省寿光市农业土壤中铅的含量及其空间分布特征,并比较了农业利用方式的影响.结果表明,研究区域农田中铅的平均含量为(17.97±1.22)mg.kg-1,与1990年山东省土壤背景值比较,有8.59%的样本出现了累积趋势,而以国家土壤质量Ⅱ级标准(GB 15618--1995)为基础进行分析则尚未发现超标样本;研究区域内4种主要农业利用方式比较,小麦/玉米/棉花为主的传统种植模式下土壤的铅含量最高,达(19.83±5.34)mg.kg-1,其后依次为露天菜地,设施菜地和对照土壤;研究区域内土壤铅含量在空间分布上以东北部,西部和西南部较高,且有由东北和西南向中部逐渐降低的趋势.设施种植条件下,土壤铅含量有随设施年限增加而升高的趋势(P<0.05),年累积速率为0.40 mg.kg-1,导致这种结果的原因可能在一定程度上与含铅量较高的有机肥大量施用有关.总体来说,目前研究区域土壤中铅含量尚处于正常范围,但从长远看仍需要注意其累积问题; Through field survey, geostatistics and ICP-MS technology, the lead(Pb)content and its spatial distribution characteristics in agri-cultural soils in Shouguang City of Shandong Province were investigated. The effect of different land-use type on the soil lead content was an-alyzed as well. The results indicated that the average content of lead in Shouguang City was by(17.97±1.22)mg.kg-1. Compared to the soil background value of Shandong Province in 1990, the lead content of 8.59% samples of the total samples showed an accumulated trend, while it was not exceeded, compared to the National Soil Quality Level Ⅱ(GB 15618--1995). Among the four kinds of the land-use patterns, the lead content in the soils was the highest by wheat, maize and cotton fields under traditional farming pattern, which was with(19.83±5.34)mg.kg-1, whereas it was followed by field vegetable, greenhouse vegetable and forest soils, which was as control soils. The spatial distribution of lead contents made by using GIS technology showed that the relative high lead content was found in the Northeast, West and Southwest and a decreasing trend of the lead contents from the Northeast and Southwest to the central part. The lead content in the greenhouse vegetable soils increased significantly at P<0.05 level as the cultivation time prolonged, and yearly accumulation rate of lead was by 0.40 mg.kg-1.The rea-son for the lead accumulation in greenhouse vegetable field could be related to the application of the high lead content organic fertilizer. Gen-erally, the lead contents in the studied areas were in the commen range, but it was necessary to pay attention to the lead accumulation in agri-cultural soils in the long run
学科主题	环境质量评价与环境监测
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/17231]
专题	农业环境与可持续发展研究所_环境修复研究室
作者单位	中国农业科学院农业环境与可持续发展研究所, 农业部农业环境与气候变化重点开放实验室, 北京, 100081
推荐引用方式 GB/T 7714	李莲芳,曾希柏,白玲玉,等. 山东寿光不同农业利用方式下土壤铅的累积特征[J]. 农业环境科学学报,2010,29(10):1960-1965.
APA	李莲芳,曾希柏,白玲玉,&李树辉.(2010).山东寿光不同农业利用方式下土壤铅的累积特征.农业环境科学学报,29(10),1960-1965.
MLA	李莲芳,et al."山东寿光不同农业利用方式下土壤铅的累积特征".农业环境科学学报 29.10(2010):1960-1965.