摘要
【目的】阐明黑龙港地区谷子、玉米等作物生长期水热资源变化特征,为作物安全生产提供理论依据。【方法】利用黑龙港流域典型地区饶阳县1957-2013年逐日气象资料,基于Penman-Monteith公式、降水距平百分率和生长度日(GDD),对饶阳县6-9月水热资源变化特征进行分析。【结果】①ET_0大小表现为6>7>8>9月,气候倾向率分别为-5.85、-1.96、-2.59和-1.46 mm·10a^-1。不同月份ET_0的减少受不同旬的影响,6月主要受中下旬影响,7月受中旬影响,8和9月分别受上旬和中旬的影响。②6-9月发生干旱的频率依次为33.33%、19.30%、31.58%和38.6%,6和7月均以轻旱为主,8月以轻中旱为主,9月以中旱为主。③6-9月生长度日依次为459.58、516.49、470.40、和301.64℃·d,气候倾向率分别为1.19、3.28、0.46和3.10℃·10a^-1。6和8月生长度日的增加受上中旬影响;7月受上旬和下旬的影响;9月各阶段均有影响,下旬增加幅度最大。【结论】在未来年际变化中,对于黑龙港地区6-9月生长的谷子、玉米等作物,热量资源充足,且呈增加趋势,但未来7和8月干旱风险将会增加。因此在农业生产中,应当完善7和8月的灌溉制度,加强该阶段保水抗旱措施。
【Objective】The present paper aimed to explain the changes of hydrothermal resources in the growth period of foxtail millet and maize in Heilongjiang region,and to provide theoretical basis for crop safety production.【Method】Based on the daily weather data from 1957 to 2013 in Raoyang County and Penman-Monteith formula,precipitation anomaly percentage and growth length day(GDD),this paper analyzed the changes of hydrothermal resources in Raoyang County from June to September.【Result】(i)The size of ET0 was June>July>August>September,and the climatic tendency rates were-5.85,-1.96,-2.59 and-1.46 mm 10a^-1,respectively.The decrease of ET0 in different months was affected by different ten days,June was mainly affected by mid-late days,July was affected by mid-late days,August and September were affected by early and mid-late days,respectively.(ii)The frequency of drought from June to September was 33.33%,19.30%,31.58%and 38.6%respectively.Light drought was dominant in June and July,light drought was dominant in August and moderate drought was dominant in September.(iii)From June to September,the growth degree days were 459.58,516.49,470.40 and 301.64℃·d,respectively.The climatic tendency rates were 1.19,3.28,0.46 and 3.10℃·10a^-1,respectively.The increase of growth duration in June and August was affected by the first and middle ten days,July by the first and second ten days,and September by all stages,with the greatest increase in the latter ten days.【Conclusion】In the future interannual changes,for crops such as millet and maize growing in Heilonggang from June to September,the heat resources were abundant and increasing,but the drought risk will increase in July and August.Therefore,in agricultural pro-duction,we should improve the irrigation system in July and August,and strengthen the measures of water conservation and drought resistance in this stage.
作者
刘朋程
郭安强
王占彪
崔海英
郝洪波
李明哲
LIU Peng-cheng;GUO An-qiang;WANG Zhan-biao;CUI Hai-ying;HAO Hong-bo;LI Ming-zhe(Institute of Dry Farming,Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province,Heibei Hengshui 053500,China;Cotton Research Institute Chinese Academy of Agriculture Sciences/National Key Laboratory of Cotton Biology,Henan Anyang 455000,China)
出处
《西南农业学报》
CSCD
北大核心
2020年第2期429-435,共7页
Southwest China Journal of Agricultural Sciences
基金
国家谷子高粱产业技术体系(CARS-06-13.5-B3)
河北省杂粮杂豆产业创新团队(HBCT2018070402)
河北省农林科学院农业科技创新工程
河北省种植业农艺节水关键技术研发与技术包集成(18227004D)。
关键词
黑龙港流域
参考作物蒸散量
降水距平百分率
生长度日
气候倾向率
Heilonggang area
Reference crop evapotranspiration
Precipitation anomaly
Growth degree days
Climate tendency rate
