非點源 的英文怎麼說
中文拼音 [fēidiǎnyuán]
非點源
英文
non-point source-
By the analysis on the status of severe increase of the contribution and harm from terrene non - point sources pollution in the merine environment of china, the need to research and develop the monitoring tracking technology of pollutans source was emphasized
摘要通過對我國近岸海域陸源性非點源污染污染貢獻率及其危害性劇增現狀的分析，強調了在我國開展污染源示蹤檢測技術研發的必要性。It is clarified that the traditionary environment monitoring technology is not satisfied, and the research and development for the microbial sources tracking technology is imperative for the situation in china
從而闡明，傳統的環境監測指標和方法已不能滿足發展的需要，集監測、溯源和示蹤為一體，適應於我國國情的近岸海域非點源污染源監測技術的研發勢在必行。After summarizing the experience of research and application about microbial sources tracking in anther countries, the project to research and development the monitoring tracking technology of the microbial source in shore of china was introduced
在總結了國外治理非點源污染的經驗微生物源示蹤技術研究和應用現狀的基礎上，介紹了我國近岸海域微生物源示蹤檢測技術研發的設計思想。Tp ( total phosphorus ) has accumulated in the whole layers of sediments from surface to 100cm. 2. the variation of non - point source pollutants after input to wetalnds with rain runoff and fields drainage the concentrations of cod, tn and nh / - n are decreased after input to wetalnds with rain runoff and fields drainage
降雨徑流和農田排水中非點源污染物進入溝渠濕地后的變化特徵降雨徑流和農田排水中的cod 、 tn 、 nh _ 4 ~ + - n進入濕地后，濃度均顯著降低，證明濕地對非點源污染物有很好的截留和凈化效果。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。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。Advances in non - point source pollution prediction model
非點源污染預測模型研究進展Non - point source modeling system of the miyun reservoir watershed
密雲水庫流域非點源模型系統A study on the non - point source pollution model
非點源污染模型研究Load calculation of non - point source pollution in baiguishan reservoir
白龜山水庫非點源污染負荷計算Watershed non - point source pollution control decision support system
流域非點源污染控制決策支持系統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2. the results showed that the contents of cach - extractable soil p, and soil test phosphorus ( olsen, bray, mehlich - 3 ) and algae - available p contents ( naoh - extractable soil p ) in the soils correlated significantly with the contents of ortho - p, particulate p and bioavailable p in runoff, respectively, which were feasible to be used as primary indices to evaluate of agriculture p impacting on surface water quality. the results also showed that the relationships between the phosphorus sorption of soil index ( psi ), and the degree of soil saturation with phosphorus ( dpss ) and the contents of ortho - p, particulate p and bioavailable p in runoff reached significant level, respectively
黃壤旱地土壤易解吸磷（ cacl _ 2 - p ） 、土壤有效磷（ olsen - p 、 bray - p 、 mehlich - 3 - p ）或藻類可以利用的土壤磷（ naoh - p ）與地表徑流中顆粒態磷、生物有效性磷和磷酸根態磷之間均存在顯著的相關性，在一定的程度上可用cacl _ 2 - p 、 olsen - p作為指示黃壤旱地地表徑流中磷潛在流失的預警指標，來判斷旱地存在磷素非點源污染的可能性。Because this runoff emanates from a wide area rather than a single source, it is classified as nonpoint source pollution
又因為暴雨逕流來自廣大的地區，非單一來源，所以歸類為非點源污染。For this reason, our objective is the research of the mechanism of runoff generation and characteristics of moisture changing process of slope farming purple soil, accordding to the theory of hydrology and the intergrated - means of compined the hydrology with the peodology, because it is the basis of the studies : soil erosion and protection, farming - land water balance, non - point pollute, etc., and the direction gist of runoff arrange implement, solving water hazard and management of irrigation and fertilizer
綜觀國內外有關研究，我們認識到對紫色土土壤產流和水分變化特徵的認識，是認識該區土壤侵蝕與保護、農田水量平衡、非點源污染等的機理和規律的基礎，也是解決該區水患問題、實施徑流調節而提高旱地的雨水利用程度，以及水肥管理等的基本科學依據。因此，以水文學原理為基礎，採取水文學與土壤學、地理學、水土保持學等相結合的途徑，研究紫色土坡耕地的降雨產流機制與產流後土壤水分的變化特徵，是具有新的科學價值和現實意義的。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 。The situation of agricultural non - point pollution source and the controlling strategy
農業非點源污染狀況與防治綜述Study on agricultural movement of chaohu lake basin and nonpoint source pollution
巢湖流域農業活動與非點源污染的初步研究Distribution of organic pollutants in agricultural soil in nanjing city
覆蓋變化對長江流域非點源污染的影響及其信息系統建設分享友人