point source of pollution 中文意思是什麼

point source of pollution 解釋
污染點源
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  • of : OF ＝Old French 古法語。
  • pollution : n. 1. 污染（作用）。2. 腐敗，墮落。
  1. Point source pollution and non - point source pollution are always the two important problems of the water environmental quality. point source pollution mainly includes industrial sullage and city ' s life sullage, which are drained from the certain outfall

    點源污染和面源污染一直是水環境質量的兩大問題，點源污染主要包括工業污水和城市生活污水，通常在排污口集中排放。
  2. The outcomes show that the two methods can separate the basin pollution load from different sides, the two separation results are close to each other and can be provided as references for drafting pollution prevention policies and ; the proportion of the two pollution loads in the basin is more or less the same, point source is slightly heavier in a dry year and the proportion of non - point source pollution is greater in a wet year

    結果表明，兩種方法可以從不同的側面分別對流域污染負荷進行分割，且兩者分割結果相近，可以為流域污染防治政策的制定提供參考；流域內兩類污染負荷所佔比重大體相當，枯水年點源污染比重略高，而豐水年非點源污染比重較大。
  3. Agricultural non - point source pollution has become a majority of water contamination

    農業面源污染因其對水體污染的普遍性而日益受到重視。
  4. The water pollution can be divided into two major categories of point source and area - source pollution according to the different way of discharge

    摘要根據排放方式的不同，水體污染可以分為點源污染和非點源污染兩大類。
  5. Load calculation of non - point source pollution in baiguishan reservoir

    白龜山水庫非點源污染負荷計算
  6. Analysis of the non - point source pollution on the upper reaches of the danjiang river

    丹江上游非點源污染分析
  7. The industry, residential point source along the river and phosphorus mine non - point source are of great water pollution load

    確定庫灣周邊的工業、生活污染點源，磷礦面源是構成水污染的主要負荷。
  8. An estimation and evaluation of non - point source pollution in the yellow river basin

    黃河流域非點源污染負荷估算與分析
  9. Building non - point source pollution spatial database of the three - gorge reservoir area can not only know about the background, status and rule of non - point source pollution and assessing non - point source critical area and calculating pollution load but also provide the scientific dependent for bringing forward quantity control goal and establishing control stratagem of non - point source pollution of the three - gorge reservoir area

    建立三峽庫區農業面源污染空間數據庫不僅可以查清三峽庫區農業面源污染的背景狀況、現狀、規律和三峽水庫水體污染現狀及其容量，進行危險性評價，確定三峽庫區水體的污染負荷，而且可以為提出三峽庫區面源污染物總量控制目標並制定三峽庫區農業面污染控制戰略提供科學依據。
  10. Based on investigating numerous references in literature both at home and abroad, collection of statistical data and field survey, this paper conducts a primary study on pollution control of agricultural non - point source by means of riparian buffer in shanghai for the first time

    本研究選取了上海松江泗涇鎮古樓村為示範區，從2002年4月到2003年12月，在上海首次進行了農業面源污染控制的濱岸緩沖體系的初步研究。
  11. In the present paper, a complete attribute and spatial database on anpsp is designed and created in three different levels of scale, hang - jia - hu plain ( 1 : 250000 ), pinghu city ( 1 : 50000 ), and field experiment ( 1 : 2000 ). based on the gis technique, especially webgis technique ( arcims, arcsde ), an agricultural non - point source pollution information system ( anpspis ) has been established in order to serve the management, planning and decision - making of anpsp in hang - jia - hu water - net plain

    本文以太湖流域杭嘉湖地區的1 250000 （杭嘉湖平原） 、 1 50000 （平湖市） 、 1 2000 （樣板區）三種不同比例尺的系統研究為例，建立了一整套農業面源污染的屬性和空間數據庫，通過利用gis及其相關技術，特別是webgis技術（ arcims 、 arcsde ）的應用，建立了一個基於webgis的農業面源污染信息系統（ anpspis ） 。
  12. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  13. Hang - jia - hu water - net plain is the primary grain production base of zhejiang province. with a high population and intensive land utilization, agricultural non - point source pollution is extremely serious in this region. animal wastes, household cleaning products, farmland runoff and leakage mainly contribute to the anpsp

    杭嘉湖水網平原地區是浙江省主要的商品糧基地，土地利用強度大，人口稠密，農業面源污染嚴重，其中畜禽糞尿、生活污染、農田徑流和滲漏是該地區三大主要的農業面源污染源。
  14. With the rapid urbanization, while point source pollution is of control, urban non - point source pollution turns into a serious threat to urban watershed

    摘要隨著城市化迅速發展，點污染源基本得到控制，非點污染源對城市水體構成嚴重的威脅。
  15. Little is known about how to control anpsp due to lack of the related theory and practical experience. especially there is no satisfactory measure to reduce the runoff and leaching of n and p from agriculture into rivers and lakes. it ' s very significant in both theory and realism to reduce agricultural non - point source pollution and protect our ecological environment for realizing the harmonious development of resource, environment and agriculture in china

    農業面源污染是困擾我國社會、經濟持續發展的一個嚴重的環境問題，主要是由於農業面源污染具有量大面廣、分散的特點，並受自然條件突發性、偶然性和隨機性的制約，現階段我們對農業面源污染情況的了解程度遠遠不如點源污染，還缺乏整治的相關理論基礎和實踐經驗，減少污染物尤其是氮、磷營養的排放具有相當大的難度，因此控制農業面源污染、保護和優化生態環境對實現我國資源、環境和農業協調發展有重要的理論和現實意義。
  16. Changing tendency and control measures of regional agricultural non - point source pollution

    人為控制因素的作用更顯著;而且隨機性因素引起的空間變異主要表現在
  17. Pollution and control of agricultural non - point source on water environment

    農業面源對水環境污染及防治對策
  18. Relationship and simulation information system of land use cover change and non - point source pollution in yangtze river basin

    南京某地農業土壤中有機污染分佈狀況研究
  19. Water is always the main factor not only during the course of soil eroding but also during the process of non - point source pollution moving. so hydrological process of watershed is the central problem in the study of soil erosion and non - point source pollution with watershed in scale

    無論在流域侵蝕產沙過程中，還是在非點源污染運移過程中，水都是主要因素，所以在以流域為尺度進行土壤侵蝕研究和非點源污染研究時，流域的水文過程是研究的主要問題。
  20. Based on an urban forest conservation in jiufeng which is located at wuhan and with an ecotourism function, remote sensing and field survey was used to establish environment database for the surface water environment planning since the non - point pollution is dominant in the conservation and the prediction of pollution source intensity was difficult in quantification and precision

    摘要武漢九峰城市森林保護區是以九峰山和馬鞍山森林公園為基礎，整合周邊山體、植被等自然資源，建成的具有生態旅遊功能的城市森林保護區。
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