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中文摘要：
为了解长期施用猪场废水对农田土壤Mn的影响，采集和测定了河北省京安猪场区域农田清洁区和污灌8年猪场废水污灌区的耕层（0～20cm）共52个土壤样品的pH、养分和Mn的全量和有效态含量，对Mn的全量和有效态含量进行空间变异和分布特征分析。空间变异分析表明，Mn的全量和有效态含量变异函数理论模型均符合球状模型，全Mn和有效Mn高度空间自相关，除受成土母质等因素影响外，还受灌溉猪场废水、施肥等人为因素的影响，污灌猪场废水对研究区土壤Mn的富集效应很小，但灌溉猪场废水会降低土壤pH而增加Mn有效态含量。
英文摘要：
To investigate Mn in soils affected by long-term swine wastewater application, 52 soil samples in the plough horizon （0-20cm） of groundwater-irrigation farmland soils and sewage-irrigation farmland soils were collected and the total and bio-available content of Mn in soils were measured respectively. Sewage-irrigation farmland soils had been applied with swine waste water for 8 years from Jing＇an swine-farm. Spatial variability of Mn was studied using Geographic Information System （GIS） technique and the geostatistical analysis method. The aim was to explore the affecting and accumulating contribution factor of Mn due to swine waste water application. The results indicated that the experimental and model-fitted variograms of total concentration and bio-available concentration of Mn in soils fitted spherical model. The spatial variabilities of total Mn and bio-available Mn were greatly dominated by structural factors because of high self-correlation, and the main accumulation factor of Mn was fertilization. The swine waste water irrigation had no influence on the accumulation of Mn, and pH would decrease after swine waste water applied which will increase the bio-available content of Mn according to investigation of background correlation analysis.
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