地下滴灌对草坪土壤水分及根系分布的影响

以滴头、滴灌毛管二种地下滴灌灌水器为研究对象,通过田间对比试验,探讨了地下滴灌条件下的土壤含水率、草坪根系空间分布规律。结果表明,滴灌毛管在水平方向的土壤含水率差异显著,而滴头在垂直方向的土壤含水率差异显著。说明以滴头灌溉水平方向土壤含水率水平方向分布偏差小、灌溉均匀性高,而滴灌毛管则适合深层灌溉。在此基础上,结合草坪根系空间分布规律,初步确定了在滴头、滴灌毛管2种灌水器中,滴头灌溉更适合城市绿地草坪,也为草坪地下滴灌技术应用提供了参考依据。

Effects of Subsurface Drip Irrigation on Soil Moisture and Underground Root Distribution of Turfgrass

An experiment has been conducted for investigating the rule of subsurface drip irrigation with two species of emitters: sprinkler and drip line;By carrying out the field test and data analysis,study on Soil moisture content and distribution of underground root;The results indicate that there is significant difference with horizontal soil moisture content to drip line and vertical soil moisture content to sprinkler.On the basis of the study and combining the distribution of underground root of turfgrass,we s...