【摘要】 通过在高原寒旱山地进行造林试验,调查分析不同坡向、不同整地方式、不同造林树种、不同造林季节以及采取地膜覆盖造林方式下,影响造林成活率的主要因素。试验表明,选择抗旱树种、采用汇集径流提前整地、地膜覆盖抗旱造林措施,以及选择阴坡地春季造林,可以提高寒旱山地造林成活率。更多还原

【Abstract】 Through carrying on plantation experiment in frigid and arid mountainous region of plateau,the main factors that impairing plantation survival rate have been investigated and analyzed for different slope aspects,different methods of soil preparation,different plantation tree species,different plantation seasons and adopting plantation method of covering with ground sheeting.The experiment shows that it can raise plantation survival rate in frigid and arid mountainous region,to select drought- resistance tree species,to use accumulated runoff for soil preparation in advance,to use drought- resistance plantation method of covering with ground sheeting,and to choose shady slope while spring plantation.更多还原