| 北京地区三种草坪草蒸散量与需水特性初探 |
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| 引用本文： | 何军,刘自学,胡自治,田宏.北京地区三种草坪草蒸散量与需水特性初探[J].草原与草坪,2005(2):50-54. |
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| 作者姓名： | 何军 刘自学 胡自治 田宏 |
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| 作者单位： | 甘肃农业大学,草业学院,甘肃,兰州,730070;甘肃农业大学,草业学院,甘肃,兰州,730070;甘肃农业大学,草业学院,甘肃,兰州,730070;甘肃农业大学,草业学院,甘肃,兰州,730070 |
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| 基金项目： | 北京市克劳沃草业技术公司资助项目 |
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| 摘 要： | 在北京地区试验地,对3种冷季型草坪草进行了3种水分处理并同时观测全年生育期内的蒸发蒸腾(ET)及环境中各生态因子,采用蒸发皿自由水蒸发系数法确定各草种的草坪系数。结果表明:当年全生育期内,在不同水分处理下蒸散量的规律为:高羊茅>草地早熟禾>多年生黑麦草;3种草种的生长季内草坪系数介于0.626~1.167,平均草坪系数为:高羊茅0.899,草地早熟禾0.864,多年生黑麦草0.875,同时对草坪耗水量及耗水特征作了初步探讨,提出在北京地区草坪草理论最适灌溉量为500mm,为北京地区草坪草水分管理提供了理论基础。
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| 关 键 词： | 草坪草 蒸散量 坪草系数 耗水量 |
| 文章编号： | 1009-5500(2005)02-0050-05 |
| 修稿时间： | 2004年5月31日 |
Study on the evapotranspiration and water requirement of three turfgrass species in Beijing |
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| HE Jun,LIU Zi-xue,Hu Zi-zhi,TIAN Hong.Study on the evapotranspiration and water requirement of three turfgrass species in Beijing[J].Grassland and Turf,2005(2):50-54. |
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| Authors: | HE Jun LIU Zi-xue Hu Zi-zhi TIAN Hong |
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| Abstract: | The evapotranspiration and environmental factors of 3 turfgrass species under 3 water treatments were measured in full growth period in Beijing and the turfgrass index(Kc value) was determined as well. The results indicated that the evapotranspiration of turfgrass showed the following pattern: tall fescue > Kentucky bluegrass > perennial ryegrass; The Kc ranged from 0.626 to 1.167 and the average Kc were 0.899 (tall fescue), 0.864(Kentucky bluegrass) and 0.875 (perennial ryegrass). It could be concluded that the proper irrigation amount in Beijing was around 500 mm. |
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| Keywords: | turfgrass evapotranspiration turfgrass index (Kc value) water consumption |
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