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| 3种冷季型草坪草蒸散量的SPAC法研究 | |
| 引用本文： | 刘艺杉,刘自学,李晓光,孙涛,张自和.3种冷季型草坪草蒸散量的SPAC法研究[J].草业科学,2009,26(10):165-170. |
| 作者姓名： | 刘艺杉 刘自学 李晓光 孙涛 张自和 |
| 作者单位： | 1. 北京克劳沃草业技术开发中心,北京,100029 2. 中科院西北高原生物研究所,青海,西宁,810000 3. 兰州大学草地农业科技学院,甘肃,兰州,730020 |
| 基金项目： | 全国牧草种质资源保护项目 |
| 摘 要： | 以北京地区常见的3种草坪草多年生黑麦草Lolium perenne、草地早熟禾Poa pratensis和高羊茅Festuca arundinacea为研究对象，采用田间试验和实验室内分析相结合，对3种冷季型草坪草年季间蒸散量（ET）动态变化进行初步研究。结果表明：3种草坪草ET每15 d的动态变化趋势基本一致，草种间的ET和蒸散强度，除了4月下旬到5月初这段时间之外，多年生黑麦草的ET均高于高羊茅和草地早熟禾。3种草ET在不同季节变化很大， 6月上中旬为整个生长季的最高值，随后下降，8月下旬到9月中旬又回升，越冬前ET再次下降并达到整个生长季的最低点。3种草坪草坪草系数(KC)多年生黑麦草最高为1.03，高羊茅和草地早熟禾分别为0.89和0.87。 |
| 关 键 词： | 草坪草 蒸散量 冷季型 SPAC |
Study on evapotranspiration of three cold-season turfgrasses by using SPAC |
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| LIU Yi-shan,LIU Zi-xue,LI Xiao-guang,SUN Tao,ZHANG Zi-he.Study on evapotranspiration of three cold-season turfgrasses by using SPAC[J].Pratacultural Science,2009,26(10):165-170. | |
| Authors: | LIU Yi-shan LIU Zi-xue LI Xiao-guang SUN Tao ZHANG Zi-he |
| Institution: | LIU Yi-shan1,LIU Zi-xue1,LI Xiao-guang1,SUN Tao2,ZHANG Zi-he3(1.Beijing Clover Seed , Turf Co.,Beijing 100029,China,2.Northwest Plateau Institute of Biology,Chinese Academy of Sciences,Xining 810008,3.College of Pastoral Agriculture Science , Technology,Lanzhou University,Lanzhou 730020,China) |
| Abstract: | The evapotranspiration dynamic of three cold-season turfgrasses(Lolium perenne,Poa pratensis,Festuca arundinacea)were studied in Beijing area using field test combined with laboratory analysis.The results showed that the evapotranspiration dynamic of 3 cold-season turfgrasses with 15 days interval kept a similar tendency.The evapotranspiration of L.perenne was higher than others except for the period from late April to early May.The evapotranspiration of 3 turfgrasses was obvious different among different s... |
| Keywords: | SPAC |
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