| 1. | Situation of nitrogen pollution in water bodies in suzhou region 苏州地区水体氮污染状况 |
| 2. | Analysis on nitrogen pollution of panjin section of liaohe river 辽河盘锦段氮污染源解析 |
| 3. | Research of recession flow on the loess slope and its nitrogen pollution 黄土坡面退水及其氮污染试验研究 |
| 4. | Studies on nitrogen pollution characterstics in hangzhou section of the qiantang river 钱塘江干流杭州段水体氮污染特征分析 |
| 5. | The soil nitrogen pollution research of applying nitrogenous fertilizer on summer - corn 有限供水对夏玉米根系生长及底墒利用影响的研究 |
| 6. | The comparison of phosphorus and nitrogen pollution status of the xiangxi bay before and after the impoundment of the three gorges reservoir 三峡水库蓄水前后香溪河氮磷污染状况研究 |
| 7. | Based on the analysis of multi - yea ' s water quality and volume in xingtai , this article obtains that the main influence factors on groundwater quality is the area pollution induced by rainfall infiltration , of which most serious pollution is nitrogen pollution 通过对邢台市多年水质水量资料的分析得出,对地下水水质的影响因素主要为通过降雨入渗补给而形成的面污染,在面污染中的氮污染对水质影响最严重。 |
| 8. | Abstract : the paper summarized the present situation of nitrate pollution in some area of our country where the surface water , underground water and vegetable crop were polluted by using nitrogen excessively , put forward some proposals and control countermeasures to prevent the nitrogen pollution in agriculture ecology environment such as draw up the " pollution prevention administrative stipulate for farm land fertilizer application " 文摘:概述了我国部分地区因过量施用化肥氮而导致对地面水、地下水及蔬菜造成硝酸盐污染的现状;提出了制定《农田施肥污染防治管理规定》等防止农业生态环境氮污染的对策意见。 |
| 9. | Based on the water monitoring of luomahu lake in 2005 and the monitoring data in recent few years , the nitrogen pollution characteristics were analyzed . the results showed that the nitrogen was the main pollution factor , including total nitrogen , ammonia nitrogen and nitrate nitrogen , which mainly came from the inlet river , precipitation , aquatic - breeding and point sources 2005年通过对骆马湖水质监测,并结合近几年的监测资料进行了分析,结果表明,氮是骆马湖水体的主要污染物,包括总氮、氨氮和硝酸盐氮,其主要特征是入湖河流、降水、围网养殖和点源带来的污染。 |