| 沧州市土壤墒情预报方法研究 |
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| 引用本文： | 吕庆玉.沧州市土壤墒情预报方法研究[J].现代农业科技,2014(7). |
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| 作者姓名： | 吕庆玉 |
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| 作者单位： | 河北省沧州水文水资源勘测局; |
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| 摘 要： | 结合沧州市实际情况,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;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。
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| 关 键 词： | 土壤墒情 预报方法 气温因素法 河北沧州 |
Study on Soil Moisture Prediction Method of Cangzhou City |
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| Abstract: | Combined with the actual situation of Cangzhou City,with winter wheat and summer maize as typical crops,variation characteristics of soil moisture in Cangzhou City were analyzed.Soil moisture variation and evolution trend of Cangzhou region were revealed.Soil moisture monitoring data of Jiedi Drought Test Station was analyzed,using P-ρ0-Δρ increase soil moisture correlation method to establish model prediction schem.Soil moisture depletion forecast scheme were developed using the soil moisture depletion coefficient method and ρt-T-ρ0 correlation method.Suitable soil moisture prediction method for Cangzhou area was discussed,and it has important popularization value for related research in similar areas. |
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| Keywords: | soil moisture forecasting method temperature factor method Cangzhou Hebei |
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