北京地区典型冷季型草坪草灌水量模拟  

Simulation of irrigation requirements of typical cool season turfgrass in Beijing area

作　　者：刘丽芳[1,2] 黄冠华[1,3] 何建平 李绍森 汪宏玲 王虎 

机构地区：[1]国农业大学水利与土木工程学院,北京100083 [2]北京师范大学水科学研究院,北京100875 [3]中国-以色列国际农业研究培训中心,北京100083 [4]北京市节约用水办公室,北京100036 [5]中国农业机械化研究院,北京100083

出　　处：《农业工程学报》2009年第1期64-68,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：北京市政管理委员会项目(2003-06)

摘　　要：为了减少北京地区草坪草灌水量、提高降水量的利用率,该文研究了充分利用降雨条件下的典型冷季型草坪草灌水量。根据典型冷季型草坪草(早熟禾、高羊茅)2003年的田间试验资料对灌溉制度模拟模型(ISAREG模型)进行了率定,然后用2004年的田间试验资料对ISAREG模型进行了验证,最后应用此模型对所研究的两种冷季型草坪草在干旱年、平水年和丰水年及不同养护条件下的灌水量进行了模拟研究。研究结果表明:生长季节内早熟禾、高羊茅的作物系数在0.5～1.0之间;在特级养护条件下,早熟禾和高羊茅所需灌水量分别为432～682mm/a、462～752mm/a;在一级养护条件下,早熟禾和高羊茅所需灌水量分别为252～432mm/a、312～492mm/a。研究结果可为北京地区冷季型草坪草的灌溉管理提供科学依据。In order to reduce the irrigation requirements ofturfgrass species and increase the utilization ratio ofprecipatiation in Beijing, the study focuses on the irrigation requirements of typical cool season turfgrass species under full use ofprecipatiation. The datasets of two cool season turfgrass species, i.e., Kentucky bluegrass and Tall fescue collected in 2003 were used to calibrate the irrigation scheduling simulation model （ISRAEG）, and then the datasets of 2004 were used to validate the ISRAEG model. Finally, the ISAREG model was used to simulate the irrigation schedules for the two cool season turfgrass species in dry, normal and wet years with different maintenance levels. The results show that the value of crop coefficient for the cool season turfgrass species in the growing season is ranged in 0.5-1.0. And the irrigation quantity required for Kentucky bluegrass and Tall rescue are 432-682 mm/a and 462-752 mm/a in the highest maintenance level, respectively. Meanwhile, the irrigation quantity required for the cool season turfgrass species are 252-432 mm/a and 312-492 mm/a in the first degree of maintenance level, respectively. The results are expected to provide some scientific implications for the best irrigation management practices of the cool season turfgrasses in Beijing area.

关 键 词：冷季型草坪草 作物系数 灌水量 土壤水分模拟 

分 类 号：S688.4[农业科学—观赏园艺]