annual discharge 中文意思是什麼
annual discharge
解釋
年徑流-
Long - term prediction of annual maximum peak discharge at yangtze three gorges based on artificial neural network
基於人工神經網路的長江三峽年最大洪峰流量長期預報 -
The new research progress in the effect of forest on rainfall, interception annual runoff, was summarized. the main issues show that the most function of forest vegetation aims at protecting water resources and water environment, adjusting water amount, controlling erosion, decreasing run - off silt, decreasing maximum flow as well as increasing discharge of river in dry season and purifying water quality
本文一方面通過介紹森林水文學的概念、研究進展和實際運用，分析了森林與水相互作用的特點，並從降水、截留、徑流等方面綜合研究森林植被在涵養水源、調節水量、減少徑流泥沙、降低洪峰、增加枯水期流量、改善水質等方面具有的重要功能。 -
The results indicated that with the change of water and sand condition and the altitude of tongguan and the development of the industry and agriculture in recent decades, the water environment of wei river had changed largely, which were shown as follow : annual runoff and seasonal flood decreased sharply ; water stream of large discharge decreased and the range of runoff decreased greatly ; sediment load per year decreased generally, sediment concentration of water increased, and the sand silting up was serious ; water channel swung and shrank, and water regime deteriorated ; frequencies of big floods decreased obviously, and hyper concentrated flood increased obviously ; water levels of the same runoff rose universally, and the frequencies of the floods increased and aggravated ; water pollution was very serious
結果表明，近期隨著水沙條件、潼關高程等的變化及工農業的發展，渭河的水環境發生了巨大變化，表現在年水量及汛期水量銳減；大流量級水流出現次數減少，水量減少幅度大；年輸沙量總體減少，河水含沙量增大，泥沙淤積嚴重；河道向擺動型發展，河道萎縮，河勢惡化；大洪水發生的次數顯著減少，高含沙小洪水明顯增多；同流量洪水位普遍抬高，洪災發生次數增加，洪災加重；水質污染極為嚴重。 -
Water resources for agriculture in yuanshi county is of scarcity and the annual sewage discharge reaches 3. 35 million m ^ 3, which is exceed the quality standard for irrigation water
摘要河北省元氏縣農業水資源嚴重不足，縣城污水年排放量335萬立方公尺，按《農田灌溉水質標準》屬超標水質。 -
To ensure environmental safety, we launched the fourth annual nationwide campaign to punish enterprises that illegally discharge pollutants
連續四年在全國開展整治違法排污企業保障群眾健康環保專項行動。 -
Normal annual discharge
正常年量
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