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应用生态学报 ›› 2001, Vol. ›› Issue (3): 398-400.

• 研究论文 • 上一篇    下一篇

春小麦田喷灌的水量分布及小气候效应

杜尧东, 王建, 刘作新, 蔡崇光, 杨久廷, 甘作勋   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳 110016;
    2. 辽宁省水土保持研究所, 朝阳 122000
  • 收稿日期:1999-10-14 修回日期:2000-01-14 出版日期:2001-05-25
  • 通讯作者: 杜尧东,男,1964年生,现攻读博上学位,主要从事节水农业、农业生态及资源保护研究,发表论文30篇.E-mail:dydd@iae.syb.ac.cn
  • 基金资助:
    国家"九五”重点科技攻关(96-004-04-06)和辽宁省"九五”科技攻关重中之重资助项目(99212001).

Water distribution and microclimatic effects of sprinkler irrigation on spring wheat field

DU Yaodong, WANG Jian, LIU Zuoxin, CAI Chongguang, YANG Jiuting, GAN Zuoxun   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016;
    2. Institute of Soil and Water Conservation, of Liaoning Province, Chaoyang 122000
  • Received:1999-10-14 Revised:2000-01-14 Online:2001-05-25

摘要: 春小麦喷灌的田间观测表明,在灌浆初期,春小麦冠层的截留水量可达25%~30%,冠层截留水量可使冠层下方的均匀系数比冠层上方提高10.1%~12.7%.喷灌的水分飘移蒸发损失可达总水量的20%~25%.春小麦喷灌可以降低空气和土壤温度,增加空气实际水汽压和相对湿度,这对抑制作物蒸腾将起一定作用.

Abstract: Measurements of sprinkler irrigation on spring wheat field indicated that spring wheat canopy could intercept water by 25~30%, and compared with that above canopy in first milking period, the uniformity coefficient below canopy could be increased by 7~9%. Floating and evaporation loss of sprinkler irrigation water could reach 20~25% of the total. In addition, sprinkler irrigation on spring wheat field could decrease air and soil temperature, and increase air actual vapor pressure and relative humidity, which played a definite role in restraining crop transpiration.

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