禿尾河 的英文怎麼說
中文拼音 [tūwěihé]
禿尾河
英文
tuwei he-
The impacts of soil and water conservation on river flow and soil - hydrology of jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments have been analyzed by the simulation and on - spot measuring methods according to data of during 1950 ' s to 1990 ' s. the selected catchments of the above four all are in the key area of soil and water conservation on the loess pleatu. the main results are as follows. the trend, reasons and critical year of annual river flow " change have been researched by rank correlation and maximum deviation division
本文以黃土高原水土保持重點區的佳蘆河、禿尾河、偏關河和湫水河等四條流域為代表，採用定量與定性、模型模擬與實測對比相結合的方法，系統分析了上世紀50 90年代時段內水土保持對河川徑流及土壤水文的影響，取得主要結果如下：採用秩相關和極差分割等定量評價方法，分析了四條支流徑流量變化趨勢、變化原因及發生明顯變化的臨界年份。The results showed that each river flow has a tendency to gradual decrease mainly by soil and water conservation in the above four catchments. the critical year of the river flow decrease was 1974, 1974, 1977 and 1974 for jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments, respectively. each river flow has been divided into prophase and anaphase period according to the critical year
結果表明：水土流失綜合治理是引起徑流量減少的主要原因之一；從上世紀七十年代以來，四條流域的年徑流量均出現逐年減少的趨勢；在研究時段內，佳蘆河、偏關河、禿尾河和湫水河徑流量發生趨勢性減少的臨界年份分別為1974年、 1974年、 1977年和1974年。One exception is tu - wei - he catchment where underground runoff is the primary part of river flow. its runoff season distribution is much uniformity. its runoff amount of july to august accounts is 24 % of the annual runoff amount
但以地下徑流補給為主的禿尾河，徑流量的季節分配相對均勻， 7 8月份徑流量占年徑流量的24 。The model can not only separate the effect of soil and water conservation measures on variation of river basin runoff amount
研究表明，在佳蘆和禿尾河流域，水土保持使流域徑流量平均減少10 % ~ 22 % 。分享友人