修剪高度对半干旱地区城市草坪秋季蒸散的影响  

Effects of mowed heights on evapotranspiration of urban turf in semi arid areain autumn

作　　者：廖忠兴[1] 王建光[1] 黄海洋[1] 徐军[1] 

机构地区：[1]内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010019

出　　处：《草原与草业》2016年第4期28-34,共7页Grassland and Prataculture

基　　金：国家自然科学基金(31460633)

摘　　要：为了解半干旱地区城市草坪的节水途径，对草地早熟禾（Poapratensis L．）庭院休闲草坪在不同修剪高度下秋季水分的蒸散状态进行了研究。结果表明：随着秋季气温的逐渐降低，在修剪高度为5cm、8cm和12cm的草地早熟禾草坪中，草坪蒸散量随着修剪高度的增加而逐渐增加；修剪高度对控制草坪0-15cm土层土壤失水的影响最大，其次是15-30cm土层，而对30-60cm土层的土壤失水基本没有影响。evapotranspiration of Kentucky bluegrass turf under different mowed heights in autumn is studied in this paper in order to save water solution in semi arid area city of the turf. The results show that in autumn the e- vapotranspiration of Kentucky bluegrass turfincreased with increasing mowing heights（Scm,8cm and 12cm）. The Effects of mowed heights on the loss of soil moisture of Kentucky bluegrass turf is mainly in 0-30cm soil layer of the grass and which in the 0-15cm soil layer is dominant. While the loss of soil moisture in the 30-60cm soil lay- er is difficult to be affected by Kentucky bluegrass.

关 键 词：草地早熟禾 草坪 修剪高度 秋季 蒸散 土壤水分 

分 类 号：S688.4[农业科学—观赏园艺]