摘要
2003年至2005年对隔坡水平沟土壤水分变化规律及利用效果进行了研究,结果表明:不论年份雨水丰欠,落叶期比栽植期隔坡水平沟0 cm^200 cm土层土壤储水量均有所增加,3 a平均增加91.9 mm,雨季降雨量多的年份水平沟土壤储水量增加幅度相对更大;落叶后水平沟比坡地0 cm^200 cm土层土壤储水量3 a平均高出50.6 mm;在同一年份中,隔坡水平沟核桃的高生长量均高于坡地核桃,3 a平均高生长量比坡地核桃高23.3 cm。
Use effect and soil moisture change rule in level furrow of slope were carried out in 2003-2005.The results showed that whether it is abundant or dificient in rain a year,compared with growth phase,there was always higher water content in 0～200 cm soil layer in level furrow of slope during leaf-dropping sate,an increase amount of 91.9 mm in three years,especially in rain season,soil water content is more.During the dormant season,soil water content of level furrow of slope is 50.6 mm more than that of slope in 0～200 cm soil layer.The height of walnut tree planted in level furrow of slope is more than in slope,and 23.3 cm increase in three years.
出处
《山西林业科技》
2008年第1期25-26,32,共3页
Shanxi Forestry Science and Technology
关键词
隔坡水平沟
坡地
土壤储水量
level furrow of slope
slope
soil water content
