Abstract : In dry area or sandy dryland, for the reason of scarce rainfall, windiness and lack of labor power and material resources, the low survivor ratio of afforestation were common.
摘要 ： 在干旱或荒漠地区
，降雨稀少，风多且风大，加之人力、物力的贫乏等原因，导致
活率低。
,地区
词
词,森开伐;学;;
为森;
,文雅;Abstract : In dry area or sandy dryland, for the reason of scarce rainfall, windiness and lack of labor power and material resources, the low survivor ratio of afforestation were common.
摘要 ： 在干旱或荒漠地区，降雨稀少，风多且风大，加之人力、物力的贫乏等原因，导致活率低。
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