中国农业气象 ›› 2009, Vol. 30 ›› Issue (S1): 57-59.

• 论文 • 上一篇    下一篇

农作物生长期间土壤总贮水量变化规律分析

张荣霞;隋岩;张寅;   

  1. 山东省聊城市气象局;山东省气象科技服务中心;
  • 出版日期:2009-12-15 发布日期:2009-12-15

Analysis on the Change Law of the Total Soil Moisture Storage during Crop Growth Period

ZHANG Rong-xia1,SUI Yan2,ZHANG Yin1(1.Liaocheng Meteorological Office,Shandong Province,Liaocheng 252060,China;2.Shandong Meteorological Science and Technology Service Centre,Jinan 250031)   

  • Online:2009-12-15 Published:2009-12-15

摘要: 通过计算0-50cm每10cm土层的多年平均土壤总贮水量及其与气象条件的关联度发现,1986-2006年,农作物生长期间、有降水和灌溉情况下,0-50cm土层土壤总贮水量的变化规律为:春季为主要失墒期,是农田水、肥管理的关键期。了解农作物生长期间农田水分的变化情况、降水及灌溉对土壤水分的影响程度,可为预测土壤水分变化趋势提供参考。

关键词: 农作物, 贮水量, 变化规律, 决策服务

Abstract: By analyzing the correlation of weather conditions and annual average total soil moisture storage of every 10cm from soil surface to 50cm depth in soil.The results showed that,during crop growth period with precipitation and irrigation from 1986 to 2006,it was soil loses moisture stage in spring,which was the critical to water and fertilizer management.The conclusion could be used to forecast soil moisture and provide a scientific reference for agricultural management reasonably.

Key words: Crops, Moisture storage, Change, Decision-making service