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现在正盛行一种做法,就是能保持河流的自然景观,充满自然情趣。主要是探讨并实行以石、木材、树木代替混凝土。所谓近似自然景观不单是材料问题。1 景观要素对自然度的影响世界各国为保持河流的自然景观,在河道整治工程中,多以石料、木材、树木等材料代替混凝土工程。但所谓近似自然,不单纯是材料问题,有人将河幅窄或河岸的草木与河幅之比在某种程度以上定义为自然度或称近自然。本文将河宽(b_c)、河岸树高(h_t)、护岸高(h_b)称之
A practice now prevailing is to maintain the natural landscape of the river and full of natural taste. Mainly to explore and implement with stone, wood, trees instead of concrete. The so-called approximate natural landscape is not only a matter of material. 1 landscape elements of the impact on the degree of natural world In order to maintain the natural landscape of rivers in the river improvement project, more than stone, timber, trees and other materials instead of concrete works. However, the so-called natural approximation is not simply a matter of materiality. Some have defined the ratio of vegetation to river as narrow or riverbank to some extent as natural or near-natural. In this paper, river width (b_c), riparian height (h_t), revetment height (h_b)