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| 汾河灌区土壤墒情预报方法初步研 | |
| 引用本文： | 粟容前,康绍忠,贾云茂,张宝忠,韦怡冰.汾河灌区土壤墒情预报方法初步研[J].中国农村水利水电,2005,0(10):92-95. |
| 作者姓名： | 粟容前 康绍忠 贾云茂 张宝忠 韦怡冰 |
| 作者单位： | 1. 中国农业大学中国农业水问题研究中心,北京,100083 2. 中国农业大学中国农业水问题研究中心,北京,100083;西北农林科技大学旱区农业水土工程教育部重点实验室,陕西,杨凌,712100 3. 山西省汾河水利管理局,山西,祁县,030900 |
| 基金项目： | 国家“863”计划节水农业重大专项课题(2004AA2Z4070)，山西省水利厅资助课题 |
| 摘 要： | 土壤墒情预报是了解农田土壤水分动态变化规律，调控土壤水分状况最有效的方法。本文依据山西省汾河灌区三站多年冬小麦与夏玉米生育期土壤含水量实测资料及相应气象资料建立了土壤墒情预报的经验模型和消退指数模型，并对两种模型进行了检验。结果表明，上述两种模型均能满足预报精度要求，但消退指数模型的精度比经验模型更高。 |
| 关 键 词： | 灌区 墒情预报 经验模型 消退指数 |
| 文章编号： | 1007-2284(2005)10-0092-04 |
| 修稿时间： | 2005年1月20日 |
Preliminary Study on Soil Moisture Forecast in Fen River Irrigation District |
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| SU Rong-qian,KANG Shao-zhong,JIA Yun-mao,ZHANG Bao-zhong,WEI Yi-bing.Preliminary Study on Soil Moisture Forecast in Fen River Irrigation District[J].China Rural Water and Hydropower,2005,0(10):92-95. | |
| Authors: | SU Rong-qian KANG Shao-zhong JIA Yun-mao ZHANG Bao-zhong WEI Yi-bing |
| Institution: | SU Rong-qian~1,KANG Shao-zhong~ |
| Abstract: | The forecasting of soil moisture is very important for understanding the dynamic change of soil water transport and regulating the status of soil water.Based on the observed data of soil moisture of winter wheat and summer corn in three stations of the Fen River Irrigation District and the relevant meteorological data,the empirical model and exponential depletion model for soil moisture forecast are established.The results show that the both methods are precise and reliable,and the soil moisture exponential depletion model is more precise than the empirical model. |
| Keywords: | irrigation district soil moisture forecast empirical model depletion exponential |
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