中国农业气象 ›› 2009, Vol. 30 ›› Issue (S2): 193-195.

• 论文 • 上一篇    下一篇

聊城土壤水分年际变化规律研究

孙培良;徐法彬;杨士恩;刘顼;杨忠旭;张新华;冯彩波;   

  1. 山东省气象科学研究所;山东聊城气象局;山东省气象局;山东聊城农科院;
  • 出版日期:2009-12-20 发布日期:2009-12-20
  • 基金资助:

    聊城市科技局与聊城市气象局研究课题

Study on Annual Variation of Soil Moisture in Liaocheng

SUN Pei-liang1,2,XU Fa-bin3,YANG Shi-en2,Liu Xu2,YANG Zhong-xu4,ZHANG Xin-hua2,FENG Cai-bo2(1.Meteorological Phenomena Science Research Institute of Shandong Province,Jinan 250031,China;2.Meteorological Bureau of Liaocheng City,Liaocheng 252060;3.Meteorological Bureau of Shandong Province,Jinan 250031;4.Liao Cheng Academy of Agricultural Sciences,Liaocheng 252060)   

  • Online:2009-12-20 Published:2009-12-20

摘要: 利用聊城1996-2006年土壤湿度固定观测地段的土壤水分资料,采用统计图表法对土壤湿度的年际变化进行分析,发现土壤湿度的年内季节间变化呈现出一定的规律性,即0-50cm各层的土壤湿度变化趋势基本一致,均呈现V型,且谷底一般出现在6月上旬前后,波峰则出现在10月前后。研究结果对于合理安排当地农业用水、节约水资源、提高水资源利用率具有一定参考价值。

关键词: 聊城, 土壤湿度, 时空分布, 变化规律

Abstract: By using the soil moisture data at fix observing section in Liaocheng City from 1996 to 2006,the soil moisture annual variation was analyzed by the method of statistic chart.The results showed that the soil moisture change trends in every lever of 0-50cm were basically consistent,appearing equally for V type,and the valley floor appeared before or after the first ten-day period in June,while wave crest appeared before or after October.The results could give certain reference to reasonable arrangement of local agricultural water,saving water resources and improving water use efficiency.

Key words: Liaocheng, Soil moisture, Spatial-temporal distribution, Changes