三北地区防护林气候生态适应性分析  

Climatic ecological adaptation of shelter forests in Three-North Regions

作　　者：张泽秀[1] 刘利民[1] 贾燕[2] 李秀芬[1] 

机构地区：[1]沈阳农业大学农学院,沈阳110161 [2]沈阳炮兵学院,沈阳110151

出　　处：《生态学杂志》2009年第9期1696-1701,共6页Chinese Journal of Ecology

基　　金：中国科学院知识创新工程重大项目资助(KZCX1-YW-08-02)

摘　　要：针对目前三北地区防护林出现的衰退、死亡等问题,探讨了该区林木生长的气候生态适应性,并指出这种现象的出现与当地恶劣的气候条件有很大关系。其中,限制三北地区防护林正常生长发育的主要气候因子是降水量不足、蒸发量过大,其次为风大且持续日数长;而温度与日照则不是限制三北地区防护林生长的气候因子。基于此,从气候生态适应性角度出发,提出因地制宜合理营造三北地区防护林的建议。Aiming at the deterioration and death of shelter forests in the Three-North Regions, the climatic ecological adaptation of the forests during their growth period was discussed. The deterioration and death of shelter forests in the Region was mainly due to atrocious weather. Deficient precipitation and high evapotranspiration were the most important factors restricting the nor- mal growth of the shelter forests, followed by lasting strong wind, while temperature and sunshine lesser effects. From the viewpoints of climatic ecological adaptability, some suggestions were proposed for the rational construction of shelter forests in different areas of Three-North Regions.

关 键 词：三北防护林 气候因子 气候生态适应性 

分 类 号：X171[环境科学与工程—环境科学]