flood terrace 中文意思是什麼
flood terrace
解釋
洪泛平原階地-
Finally, each category of the classification system is that : 1 ) the extent of human activities as the first class : natural wetland landscape, half natural wetland landscape and artificial wetland landscape ; 2 ) geomorphology as the second class : flood land, depression, valley and terrace ; 3 ) marsh wetland vegetation as the third class, which amalgamated with the way of indistinct assemble classification
從而建立了一套完整的景觀生態制圖分類系統:第一級按人類活動影響程度劃分為:自然濕地景觀、半自然濕地景觀、人工濕地景觀;第二級按地貌劃分為:河漫灘、階地、湖濱、窪地、谷地;第三級對沼澤濕地植被25種類型進行模糊聚類歸並,得出不同比例尺的地圖制圖景觀類型。 -
The second terrace turned into a complex terrace because of the slackwater sediments caused by the yellow river ' s flood in late holocene
距今4000年左右的史前洪水階地上加積了一層平流沉積物,形成復合型階地,其下部為基座階地,上部為上疊階地。
分享友人