| 乌鲁木齐市蔬菜基地土壤有效态铅的空间变异特征(英文) |
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| 引用本文： | 郑江,王灵.乌鲁木齐市蔬菜基地土壤有效态铅的空间变异特征(英文)[J].农业科学与技术,2012(1):155-157,167. |
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| 作者姓名： | 郑江 王灵 |
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| 作者单位： | 乌鲁木齐市环境监测中心站;新疆农业大学草业与环境科学学院 |
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| 基金项目： | Supported by Scientific Research Project for Universitie in Xinjiang Uygur Autonomous Region(XJEDU2005I08);China-Italian Cooperation Projects for Environmental Protection~~ |
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| 摘 要： | 目的]研究乌鲁木齐市蔬菜基地土壤有效态铅的空间变异特征。方法]以乌鲁木齐市北郊蔬菜基地为典型区,对干旱区绿洲城市郊区土壤有效态铅含量的结构特征进行分析,得到该地区有效态铅的空间分布格局并揭示了引起这种分布格局的成因和污染来源。结果]乌鲁木齐市北郊蔬菜基地有效态铅属中等变异。半方差函数模型拟合表明有效态铅含量可以用指数函数拟合,且在一定范围内存在空间相关性。采用Kriging最优内插法得到了有效态铅含量的空间分布格局,表明土壤有效态铅含量与工业活动、污水灌溉和大气降尘密切相关。结论]该研究为该区域铅空间污染源的识别,污染风险评估和污染治理提供了科学依据,对于创造安全、清洁的生产环境和选择合理的蔬菜种植区具有重要意义。
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| 关 键 词： | 乌鲁木齐 土壤铅 有效态 空间变异 |
Spatial Variation Characteristics of Soil Available Plumbum (Pb) in Vegetable Bases in Urumqi City |
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| Jiang ZHENG,Ling WANG.Spatial Variation Characteristics of Soil Available Plumbum (Pb) in Vegetable Bases in Urumqi City[J].Agricultural Science ＆ Technology,2012(1):155-157,167. |
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| Authors: | Jiang ZHENG Ling WANG |
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| Institution: | 1. Urumqi Environmental Monitoring Center Station, Urumqi 830000, China; 2. Institute of Grass Industry and Environment Science, Xinjiang Agricultural University, Urumqi 830000, China |
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| Abstract: | Objective] The paper was to study the spatial variation characteristics of soil available plumbum(Pb) in vegetable bases of Urumqi City. Method] With the vegetable base in northern suburb of Urumqi city as a typical area, the structure feature of soil available Pb content in suburb of oasis city in the arid area was analyzed to get the spatial distribution pattern of available Pb, the origin and pollution source of this distribution pattern were also revealed. Result] The available Pb in vegetable base of northern suburb in Urumqi City belonged to moderate variation. Semivariance model fitting showed that available Pb content could be fit with exponential function, which had spatial correlation within a certain range. The spatial distribution pattern of available Pb content was obtained by using optimal Kriging interpolation, and indicated that soil available Pb content was closely related to industrial activities, sewage irrigation and atmospheric dust. Conclusion] The study provided the scientific basis for recognition, pollution risk assessment and pollution control of Pb pollution sources in the region, which have great significance on creating safe and clean production environment and selecting reasonable vegetable planting districts. |
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| Keywords: | Urumqi Soil Pb Available state Spatial variation |
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