fixed canopy 中文意思是什麼
fixed canopy
解釋
固定式座艙蓋-
Root distribution and canopy structure parameters of s. godejevii in different sandy land habitats ( semi - fixed sand dunes, fixed sand dunes and inter - dunes low land ), as well as species composition and their frequency in the herb layer of the scrubs, were compared the results were as follows : the population hi the semi - fixed sand dunes had the most developed root systems, followed by he population in the fixed sand dunes, and that hi the inter - dunes low land was the last
為了更有效地利用這一重要植物資源,本文對分佈於渾善達克沙地三種不同沙地生境(半固定沙丘、固定沙丘、丘間低地)黃柳灌叢的根系分佈,冠層特徵進行了研究,同時測定了灌叢下草本層植物種類組成及頻度,結果表明:半固定沙丘上的黃柳根系最發達(根系分佈深,數量大) ,固定沙丘的黃柳明顯不及前者,而丘間低地的黃柳根系最不發達。
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