干旱地区农业研究2012，Vol.30Issue(1)：197-203,7.
灌丛密度对毛乌素沙地南缘沙柳生长及土壤水分动态的影响
Effects of shrub density on growth of artificial Salix psammophila and soil moisture dynamics in Mu Us sandy land
摘要
Abstract
The patterns of the growth of artificial Salix psammophila shrubs and soil moisture in Mu Us sandy land was compared under different planting density during growing season. The experiment density included 0.2 plants/m2 , 0.6 plants/m2 and 0.8 plants/m2 . The results showed that planting density had significant effect on the patterns of the growth of artificial Salix psammophila shrubs. With the increasing of planting density, the plant height, average canopy, aboveground biomass, leaf biomass and stem biomass of Salix psammophila shrubs decreased after an initial increase. Planting density had significant effect on the soil moisture dynamic of artificial Salix psammophila shrubs. Soil moisture of Salix psammophila shrubs increased and then decreased with increasing of planting density, and the inflection point of the curve appeared in 0.6 plants/m2 density. The optimal density of artificial Salix psammophila shrubs was found to be approximately 0.6 plants/m , because the best growth of Salix psammophila shrubs was in this density treatment.关键词
沙柳/栽植密度/土壤水分动态/生物量Key words
Salix psammophila/ planting density/ soil moisture dynamics/ biomass分类
农业科技引用本文复制引用
安慧,王俊波,安钰..灌丛密度对毛乌素沙地南缘沙柳生长及土壤水分动态的影响[J].干旱地区农业研究,2012,30(1):197-203,7.基金项目
宁夏回族自治区自然科学基金(NZ0910) （NZ0910）
国家重大基础研究前期研究专项(2009CB426304) （2009CB426304）
国家自然科学青年基金项目(31000214) （31000214）
教育部高等学校博士学科点新教师基金(20106401120001) （20106401120001）
