西北林学院学报2012，Vol.27Issue(6)：26-32,97,8.DOI:10.3969/j.issn.1001-7461.2012.06.06
土壤干旱对黄土高原2种半灌木植物生长与耗水规律的影响
Effect of Soil Drought on Growth and Water Consumption of Two Subshrub Species in Loess Plateau
摘要
Abstract
Effects of soil drought on the growth and water consumption (WC) of two subshrub species occurring in Loess Plateau were examined, namely, Artemisia gmelinii and Lespedeza davurica. It was found that differences existed in WC pattern between the two species. The trends of monthly and total WC of the two species under different water conditions were in the order of without stress (adequate water)? medium stress^severe stress. Except that the monthly WC of A. gmelinii under adequate water condition concentrated in July, August, and September, while under other water conditions, the WC of the 2 species concentrated during June to July, and reached their the maximum values in July. The peak values of daily WC of the two species appeared at 14:00 under the medium and severe stresses. However, under adequate water condition, L. davurica exhibited two peak values at 10:00 and 14:00, respectively. The growth of the two species was inhibited under water stress, and the water use efficiency was affected significantly under drought stress.关键词
铁杆蒿/达乌里胡枝子/耗水特性/水分利用效率Key words
Artemisia gmelinii/ Lespedeza davurica / water consumption characteristic/ water use efficiency分类
农业科技引用本文复制引用
蔡马,韩蕊莲,靳淑静,郭颖,梁宗锁..土壤干旱对黄土高原2种半灌木植物生长与耗水规律的影响[J].西北林学院学报,2012,27(6):26-32,97,8.基金项目
中国科学院百人计划(Kzx2-YW-BR-02) （Kzx2-YW-BR-02）
中国科学院知识创新工程重要方向项目(KZCX2-YW-443). （KZCX2-YW-443）
