【摘要】 通过对邢台市氮污染源调查,指出在吸附作用、硝化作用和反硝化作用下,农村长期过量施用的化肥中的氮通过包气带、地表水和灌溉水渗入土壤,造成水环境中氮污染,破坏了土壤结构,影响人类健康,而降水的数量和分布、灌溉水量、土壤的物理性质以及氮肥的品种和数量是影响氮在土壤中运移的决定因素。最后提出了建立生态农业体系、合理施用化肥、建立有机无机相结合的作物养分体系等治理氮污染的有效措施。更多还原

【Abstract】 Based on an investigation and analysis of nitrogen pollution sources in Xingtai City, it is pointed out that the nitrogen in long-term and over used chemical fertilizers enters into soil through aeration zone, surface water, and irrigation water due to absorption, nitrification, and denitrification, resulting in the nitrogen pollution in water environment, destroying the soil structure, and impacting the health of human beings. Meanwhile, the precipitation and its distribution, the volume of irrigation water, the physical characteristics of soil, and the variety and quantity of nitrides are the main factors influencing the transfer of nitrogen in soil. Finally, some effective measures are proposed for nitrogen pollution remediation, including the establishment of agricultural ecological system, reasonable utilization of chemical fertilizers, and development of an organic and inorganic matters combined crop nutrient system.更多还原