摘要
2008年在新疆尉犁县的苗圃地，通过测定不同咸水滴灌量（3000，4500，6000m^3·hm^-2·a^-1）下5种植物的主要形态指标的生长量，包括株高、地径、冠幅和根冠比，确定了各植物合适的咸水滴灌量。结果表明：在试验设计的3个咸水滴灌量中，多枝柽柳和银新杨的合适咸水滴灌量为6000m^3·hm^-2·a^-1，9月份时该咸水滴灌量下多枝柽柳的株高生长量为26．2cm，冠幅生长量为9925．7cm^2；银新杨的株高生长量为8．3cm，地径生长量为0．242cm，冠幅生长量为605．0cm^2；中天杨和四翅滨藜的合适咸水滴灌量为4500m^3·hm^-2·a^-1，9月份时该咸水滴灌量下中天杨的株高生长量为23．5cm，地径生长量为0．269cm，冠幅生长量为4560．0cm^2；四翅滨藜的株高生长量为50．8cm，冠幅生长量为24900．0cm^2。不同咸水滴灌量下，土壤表层0～5cm的含水量最低，而含盐量最高；当土壤深度超过10cm时，土壤的水盐变化已经不明显。
It aims to find the appropriate amount of salt water drip irrigation for five different plants by determining their growth of main morphological indexes in different levels of salt water irrigation amount （3 000, 4 500, 6 000 m^3·hm^-2·a^-1） at nursery in Yuli, Xinjiang, including height, ground diameter, crown width and root/shoot ratio. The results showed that the suitable salt water drip irrigation for Tamarix ramosissima Ledeb. and Populus alba×Populus albavar var. pyramidal is 6 000 m^3·hm^-2·a^-1, and the determination in September showed that the height growth and crown width growth of Tamarix ramosissima Ledeb. were 26.2 cm and 9 925.7 cm^2 and the height growth, ground diameter growth and crown width growth of Populus alba x Populus albavar var. pyramidal were 8.3 cm, 0. 242 cm, 605.0 cm^2 under 6 000 m^3·hm^-2·a^-1 irrigation amount. The suitable salt water drip irrigation for Populus×xiaozhuanica ＂Zhongtian＂ and Atriplex canescen （Pursh） Nutt. was 4 500 m^3·hm^-2·a^-1, and the determination in September showed that the height growth, ground diameter growth and crown width growth of Populus×xiaozhuanica ＂Zhongtian＂ were 23.5 cm, 0.269 cm, 4 560.0 cm^2 and the height growth and crown width growth ofAtriplex canescen [ Pursh] Nutt were 50.8 cm and 24 900.0 cm^2 under 4 500 m^3×hm^-2·a^-1 irrigation amount. At surface layer （0-5 cm）, soil water content was the lowest and soil salt content the highest. When the depths of soil exceed 10 cm, the soil water and salt content did not change significantly.
出处
《林业科学研究》
CSCD
北大核心
2009年第3期349-354,共6页
Forest Research
基金
国家“十一五”林业科技支撑计划专题“防沙治沙植物材料筛选与扩繁技术(2006BAD26B0101)”
国家“十一五”林业科技支撑计划课题“新疆活化沙丘的固定与绿洲防风固沙体系构建技术研究与试验示范(2006BAD26B09)”
关键词
新疆
咸水
滴灌量
形态指标
Xinjiang
salt water
drip irrigation amount
morphological indexes
