沧州区域土壤墒情预报方法探讨  

Prediction method of soil moisture content in Cangzhou area

作　　者：吕庆玉 

机构地区：[1]河北省沧州水文水资源勘测局,沧州061000

出　　处：《中国水利》2013年第B06期33-35,共3页China Water Resources

摘　　要：结合河北省沧州市实际情况,以冬小麦和夏玉米为典型作物分析沧州市土壤墒情变化特点,揭示沧州区域土壤墒情变化规律和演变趋势,并对捷地旱情试验站土壤墒情监测资料进行分析研究,利用P~ρ0~Δρ增墒相关法建立增墒预报方案,利用退墒系数法以及ρt^T~ρ0相关法建立退墒预报方案,探讨适合沧州区域的土壤墒情预报方法,对类似地区相关研究具有重要的推广价值。Combined with the actual situation of Cangzhou City in Hebei Province, variation characteristics of soil moisture in Cangzhou City are analyzed with winter wheat and summer maize as the typical crops. It also reveals the variation and evolution trend of soil moisture and analyzes the monitoring data of soil moisture in Jiedi Test Station. Prediction scheme of increasing soil moisture is built by correlation method of P-ρ0-△ρ, and prediction scheme of decreasing soil moisture is built by correlation method of ρt-T-ρ0. Discussion on prediction methods of soil moisture content suitable for Cangzhou area is a promotional value for relevant study.

关 键 词：典型作物 墒情预报 增墒 退墒 预报方案 沧州 

分 类 号：S152.7[农业科学—土壤学]