摘要
干旱是威胁人类生存与发展的最大环境压力之一,也是影响干旱区林木分布和生长的主要限制因子。林木抗旱性的强弱,直接关系到造林的成败,因此研究林木的抗旱性是树种选择的基础。文中主要从林木抗旱机理的研究、林木抗旱评价指标的研究、林木抗旱性评价的主要方法3个方面对近年来林木抗旱性评价进行了总结。
Drought and water resources are great stresses of environment, which threaten mankind＇s existence and development. They are also the fn＇st restrictively factors of forest trees＇distributing and growth. The drought resistance of trees is closly correlated to the success of afforestation and also the base of tree species selection. In the paper, the mechanism of tree drought-resistance is briefly described and the worldwide present situation of the researches on drought-resistance is summarized. It itemizes test indexes from configuration, develop, physiology, biochemistry, and so on. It also sums up methods Of forest trees＇all-around appraise.
出处
《世界林业研究》
CSCD
北大核心
2007年第1期10-15,共6页
World Forestry Research
基金
国家"十五"科技攻关项目"2001BA510B03"
"退耕还林工程区干旱河谷造林技术研究与示范"
关键词
林木
抗旱性
评价指标
方法
forest trees, drought-resistance, text index, method
