天津泰达高羊茅草坪土壤水分动态研究  

Study on soil moisture dynamics of tall fescue turf in Tianjin

作　　者：胡九林[1] 张清[2] 韩烈保[1] 王振宇[2] 杨永利[2] 

机构地区：[1]北京林业大学草坪研究所,北京100083 [2]天津泰达生态园林发展有限公司,天津300457

出　　处：《干旱地区农业研究》2006年第5期198-201,共4页Agricultural Research in the Arid Areas

基　　金：国家863重大课题"北方半干旱都市绿地灌溉区节水综合技术体系集成与示范"(2002AA2Z4281)

摘　　要：通过中子水分仪定期测定土壤含水量，得出高羊茅草坪土壤中水分的变化规律。结果表明，土壤水分状况分为3层，0～20cm为活跃层，30～50cm为次活跃层，50～100cm为稳定层。草坪能够利用0～50cm土层的水分，但是不能利用50cm以下土层的水分。并确定出灌溉深度、灌溉饱和点和灌溉补偿点，为制定合理的草坪灌溉制度提供依据。The dynamics of soil water content of tall rescue turf has been studied with neutron probe. The results showed that the soil water profile in 0-100 cm could be divided into 3 layers, i.e. , active layer （0-30 cm）, hypoactive layer（30 - 50 cm） and relatively stable layer（50 - 100 cm）. The turf grass could utilize soil water in 0 - 50 cm depth, but could not utilize that below 50 cm. The paper also proposed the reasonable irrigation depth, irrigation saturation point and irrigation compensation point, which might provide theoretic basis to make out irrigation scheme of turf grass.

关 键 词：高羊茅 土壤水分 灌溉制度 

分 类 号：S152.75[农业科学—土壤学]