The results indicate that the nitrate-N leakage loss under the root zone caused by fertilizer irrigation could creat the pollution of shallow groundwater in Tangshan agricultural area.
计算结果表明,唐山农业区灌溉施肥引起根区以下硝态氮渗漏损失可造成浅层地下水的污染。
The heron is only distributed in eastern coast of Xiamen which had less human activity and pollution, and its intertidal zone was rocky and sandy.
厦门的岩鹭仅分布于东部海岸,该区域人为干扰和污染少,潮间带底质以砂砾、岩石为主。
Water environmental capacity of Danshui River of Jinyangkou Protection Zone is calculated and based on this, the pollution control methods are put forward.
计算了津洋口防护区丹水河的水环境容量,并据此提出水环境污染治理方案。
The obtained results mean that air pollution in the nearshore zone is heavier than that over the sea area, and the same is the influence of human activity.
结果意味着空气污染近岸区重于海上区,人为活动的影响也较海上区的大。
According to air pollution monitoring data of Turpan city zone near 4 years, this paper analyses and appraises air pollution status and cause of city zone and its cause.
根据近4年吐鲁番城区的大气污染监测资料,对城区大气污染状况进行了分析和评价,对其成因进行了分析,并提出具体的防治对策。
For the pollution ions were existed on the specimens when they emerged from seawater, the dealloying corrosion of double phase brass exposed to mean tide zone was also accelerated.
由于这种污染元素的作用在试样露出水面时依然存在,致使潮差暴露也出现类似情况。
For the industrial pollution sources locating in the zone of municipal wastewater collecting system, effects of instant or accidental discharge of chemical compounds must be assessed.
位于城市污水处理厂污水收集系统区域内的工业污染源,必须考虑其突发性或间歇排放的化学物质对污水处理的影响。
So we should designate sanitary zone of water source, control soil and water loss and non - point source pollution to protect water source.
建议采取划定水源保护区、加大水土流失治理力度、控制面源污染等措施保护水源。
The pollution of the working environment in the production zone is reduced, the working environment is improved, and the production is increased.
减少生产区工作环境污染,改善工作环境,提高产量。
Zones in the 341 cities of the statistics (including county level municipality), 64 of them are located in SO2 Pollution Control Zone and 118 belong to Acid Rain Control Zone.
“两控区”二氧化硫污染情况统计的341个城市中(包括县级市),有64个城市属于二氧化硫污染控制区,118个城市属于酸雨控制区。
More efforts will be make to prevent and control the pollution in the aquifer of the groundwater supply zone in the western and northern suburban.
加强市区西郊和北郊山前地下水源侧向补给区源头的水污染防治。
This paper is inclined to bring about its own improved exponential smooth forecast model for the radioactive pollution forecast in the soil of crop-fields near a uranium mine exhaust outlet zone.
铀矿井尾气排风口周围土壤中放射性物质的累积性污染不容忽视,但目前处于监测和积累数据阶段。
The second zone is Changtu county, determined as the production area of pollution-free crop cultivation and animal husbandry of Tieling.
区是昌图县,定为铁岭市绿色种植业和绿色畜牧业的生产区。
The factors must be considered in optimization, these are topographic and meteorologic features, pollution sources distribution, and functional characteristics of each zone.
优化时必须考虑地形和气象特点、污染源的分布和片区的功能特征。再根据片区内主要污染物及源分布确定决策团子。
The factors must be considered in optimization, these are topographic and meteorologic features, pollution sources distribution, and functional characteristics of each zone.
优化时必须考虑地形和气象特点、污染源的分布和片区的功能特征。再根据片区内主要污染物及源分布确定决策团子。
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