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榆林流动沙地飞机播种造林试验及示范区建设
Authors
严奎阶
刑学祥
+5 more
刘建华
李宾生
柒建忠
王维业
金招寿
Publication date
1 January 1987
Publisher
Abstract
该项研究,通过人工模拟及风洞试验,根据当地沙丘移动规律、气候特点、植物生物学特性、种子形态、种子位移和幼苗风蚀沙埋等因素,确定以踏郎、花棒、白沙蒿为主要飞播先锋植物;伴以短期内有经济效益的沙打旺、草木栖,在5月中旬下旬进行飞播,三年以后可使流动沙地变成半固定沙地。由于正确搭配植物种类,利用萌蘖繁殖特性和天然下种,使植被覆盖面不断扩大,逐步形成相对稳定的固定沙地。这一结果已被红石峡人工植被和靖边县沙地踏郎天然植被所证实。其研究的深度和广度,在我国的飞播史上是少有的。4~8年后的保存率达24.2~54.4%,在国内尚无先例。这一研究成果对我国类似流动沙地类型进行飞机播种造林固沙,具有推广价值
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018