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 : 在干旱或荒漠地区造林,降雨稀少,多且大,之人力、物力贫乏等因,导致造林成活率低。
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 : 在干旱或荒漠地区造林,降雨稀少,多且大,之人力、物力贫乏等因,导致造林成活率低。
Abstract: Qinghai is a multi-ethnic-populated areas with the typical plateau continental climate such as drying, less rain, windiness, cold, long sunshine hours and so on.
摘要: 青海是一个多民族聚居地区,属于典型大陆性气候,具有干燥、少雨、多、寒冷、日照时数长等特征。
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