surface watershed 中文意思是什麼

surface watershed 解釋
地面分水嶺
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  • watershed : 〈英國〉分水嶺；〈口語〉流域。
  1. Iv ) as a quantitative index of wateshed topography, topograph fractal demension can represent surface shape information of watershed topography in the round. reseach find that watershed model and actual watershed show good fractal character

    通過研究發現：流域模型和實際流域地形都具有很好的分形特性，地形分形維數與流域地貌的發育過程有關，代表著流域的發育程度。
  2. Large - scale changes of landscape structure cause the degradation of functions of storage and drainage in watershed wetland, which are reflected by loss of flood holding capacity, increase of surface runoff and decrease of confluence time etc

    景觀結構的巨大改變引起了流域濕地貯、排水功能的衰退，主要表現為滯洪、消能空間的喪失，徑流量的增加和匯水時間縮短等。
  3. Dem has abundant information about terrain, and we can extract the watershed basic characters, which include land surface characters, drainage network et al based on gis, and also can make certain the watershed boundary and set off sub watersheds from dem, which provide the flat roof for digital hydrological simulation

    數字高程模型（ dem ）存儲了豐富的地形信息，通過gis可以提取流域的基本特徵，包括下墊面特徵、水系、河網等，並可以依據河網等級確定流域的邊界，進行子流域的劃分。為數字水文模擬提供了平臺。
  4. To study the effects of preferential flow on infiltrated flow and surface runoff in the granite area of the three gorges, yangtze river, china, a soil profile that is not seriously disturbed by human activities was selected in the quxi watershed of the area as a field experimental site

    摘要為研究長江三峽花崗巖地區優先流對滲流和地表徑流的影響，以長江三峽地區曲溪小流域作為試驗用地，選擇適當的土壤剖面作為觀測剖面。
  5. Iii ) the result from simulating rainfall on watershed model indicats that changes of projective area, surface area and volume represented development of watershed physiognomy. volume of model body decreased and projective area and surface area increased with developing process of watershed model. when development of gully trending to stablization, projective area become stable and surface area changed fluctuantly

    （ 3 ）流域模型的模擬降雨實驗觀測結果分析表明：流域模型地貌的發育演化主要體現在其投影面積、表面積和相對體積的變化上；流域模型投影面積和表面積在整個試驗過程中一致增大，當溝道發育逐漸趨于穩定時，投影面積變化也趨于穩定，表面積則呈現出波動性變化。
  6. Because change of volume reflected eroding process of watershed and surface change reflected change of topography surface, this model described relationship between watershed topograph and erosion

    由於相對體積變化反映了流域遭受侵蝕的過程，而表面積變化體現的是地形表面的變化，因而此關系模型同時表述了流域地形與侵蝕之間的關系。
  7. Topography fractal dimension related with process of development of watershed physiognomy and represented degree of watershed development, v ) sediment yield intensity of watershed model reflected erosion characteristic of watershed model in different development phase. simulating experiment indicated that sediment yield intensity took on the trend that they changed from small to big then decreased gradually. the relationship of average sediment transport rate and sediment yield rate per mm rainfall with topography fractal demension is expressed by gaussian model and this model is similar with relationship between volume and surface area

    （ 5 ）流域模型產沙強度的變化反映了流域模型在不同發育階段的侵蝕特徵，模擬試驗研究結果表明：在整個流域模型地貌地貌的發育過程中，其產沙強度呈現由小到大，然後又逐漸減小的總體趨勢，流域模型單位降雨產沙率及平均輸沙率與地形分維數表現為gaussian模型關系，其關系形式與結論3中相對體積和表面積之間關系相似，進一步說明了以地形分維數表達地形變化的合理性。
  8. Application of surface erosion of sediment yield model to jialingjiang watershed

    侵蝕沉積模型在嘉陵江流域的應用
  9. Surface runoff was measured by an automatic gauge and a thin triangle weir vertically installed at the outlet of the watershed

    在小流域出口處設置90薄壁三角堰和水位計記錄了地表徑流過程，分析了優先流和滲流、地表徑流之間的關系。
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