滯積層 的英文怎麼說
中文拼音 [zhìjīcéng]
滯積層
英文
lag deposits-
Forests as an adjuster for ecological balance in mountain areas play important roles in soil and water conservation, runoff and silt retardance etc. especially, forests are regarded as " forest reservoir " due to their great hydrological regulation functions through canopy, undergrowth, litterfall and soil layers
森林是山地生態平衡的重要調節器,特別是其水源涵養、理水保土、緩洪滯淤的功能對于山地面積大的福建省顯得極為重要。森林通過林冠層、林下植被層、枯枝落葉層以及土壤層發揮良好的涵養水源、保持水土、削峰滯洪等「森林水庫」的功能。The sediments of the incised valleys show an upward - fining succession, and can be grouped into four sedimentary fades : gravel lag - deposit of in - channel to partly over bank sediments of a meandering river, flood plain - estuary, estuary - shallow marine, and estuary sand bar, based on lithology, paleontology, and sedimentary textures and structures
根據巖石學、沉積結構和沉積構造特徵,本區下切河谷充填沉積物具有向上變細的沉積層序,可以劃分為4個沉積相類型:河床滯留沉積物到部分曲流河沉積體系的邊灘沉積、河漫灘河口灣沉積、河口灣淺海沉積和河口灣砂壩沉積。The alternative changes of paleoenvironment favored the formation and imbedding of brine, which is the source of salt - water intrusion ; and the paleochannel that formed during regressive of sea level is the path of salt - water intrusion
海進時期,大面積的濱海平原被淹沒,在近海平原窪地滯留的海水經過蒸發、濃縮變為鹵水,成為鹹水入侵的物源;海退後陸源碎屑在濱海地區沉積形成了巨厚的古河道砂層。The region and the earth surface across this road are mainly water above ground and run - off and the ground water is mostly made up of groundwater and perched water ; the river bed is more obvious ; the overbank is covered by medium sand and gravel ect
路線所經地帶地面主要為地表水和徑流,地下水主要以潛水和上層滯水為主,河床較明顯,河灘覆蓋中砂、礫石等。地勢低洼地帶地表常年積水,影響路基穩定。The simulation result shows that vadose zone can rigorously retard those nuclides with vigorous adsorbility, i. e. the bigger the nuclide decay coefficient is, the more the nuclide is retarded in vadose zone and the less the nuclide concentration in aquifer is, and that the distribution coefficient directive affects the form of the nuclide concentration curve in an aquifer
數值模擬結果表明:包氣帶對于吸附性較強的核素具有很大的阻滯作用,對于低分配系數的核素阻滯作用較弱;衰變系數對含水層中核素的遷移起到了重要作用,隨著衰變系數的增大,地下含水層中的核素體積濃度逐漸降低,並且分配系數的大小直接影響著核素在含水層中體積濃度分佈曲線的形狀。分享友人