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渍水麦田土壤水分动态模型研究
A SOIL-WATER BALANCE MODEL UNDER WATERLOGGING CONDITION IN WINTER WHEAT
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摘要: 根据土壤水分平衡原理，建立了一个反映土壤渍水、可与小麦生长模型耦合的土壤水分动态模型，尤其考虑了因地下水位较浅而引起的毛管上升水量和土壤导水率的变化对土壤含水量的影响。采用盆栽小麦水分试验资料验证了日蒸散量的模拟值，利用湖北荆州农业气象试验站和江苏金坛农业气象试验站的土壤水分历史资料对建立的模型进行了综合测试和验证，结果表明：蒸散量、地下水位和0～50 cm土壤含水量的模拟值与实测值具有较好的一致性，模型能可靠地预测多雨和渍水地区麦田土壤水分的变化动态Abstract: Based on soil moisture budget method, a soil water balance model for waterlogged winter wheat field was developed, which can be coupled with crop growth model. In order to simulate the soil waterlogging status, the calculation of capillary rise from the water table and the functions of hydraulic conductivity characteristics were incorporated. The simulated values of daily evapotranspiration were verified by the dataset from the pot experiments. The model was validated for water table and soil water contents for 0~10 cm, 10~20 cm, 20~30 cm, 30~40 cm and 40~50 cm soil layers using the observed data in Jingzhou and Jintan sites. Statistical analysis shows a good agreement between the simulated and observed data.
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Key words:
- Waterlogging;
- Soil moisture;
- Simulation model;
- Winter wheat
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表 1 小麦盆栽试验不同水分处理的日蒸散量
表 2 荆州和金坛两站土壤水分物理特征值
表 3 荆州和金坛两站冬小麦生长中后期逐旬降水量 (mm)
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[1] 赵艳霞,王馥棠. 土壤-作物-大气连续体水分循环与作物生产关系的模拟模式研究. 应用气象学报,1997, 8(4): 428-436. http://qk.cams.cma.gov.cn/jams/ch/reader/view_abstract.aspx?file_no=19970461&flag=1 [2] 申双和,李胜利. 一种改进的土壤水分平衡模式. 气象, 1998, 24(6):17-21. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXX806.002.htm [3] 王桂玲,高亮之. 冬小麦田间土壤水分平衡动态模拟模型的研究. 江苏农业学报,1998,14(1):36-41. http://www.cnki.com.cn/Article/CJFDTOTAL-JSNB801.009.htm [4] 吕军. 作物生长田间水分平衡的系统模拟. 水利学报,1998, (1):45-50. http://www.cnki.com.cn/Article/CJFDTOTAL-SLXB801.008.htm [5] 王西平,姚树然. VSMB多层次土壤水分平衡动态模型及其初步应用. 中国农业气象,1998,19(6):27-31. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGNY806.007.htm [6] 李保国,龚元石,左强,等著. 农田土壤水动态模型及应用. 北京:科学出版社,2000. 40-46. [7] Brission N, Seguin B, Bertuzzi P. Agrometeorological soil water balance for crop simulation models. Agri and For Meteor., 1992,59: 267-287. doi: 10.1016/0168-1923(92)90097-N [8] Ritchie J T, Otter S. Discription and performance of CERES-wheat: auser-oriented wheat yield model.USDA-ARS,1985,38: 159-170. [9] Belmans C, Wesseling J G, Feddes R A. Simulation model of the water balance of a cropped soil: SWATRE. J Hydrology, 1983,63: 271-286. doi: 10.1016/0022-1694(83)90045-8 [10] Cox J W, McFarlane D J, Skaggs R W. Field evaluation of DRAINMOD for predicting waterlogging intensity and drain performance in south-western Australia. Australian J of Soil Research, 1994, 32(4):653-671. doi: 10.1071/SR9940653 [11] 彭宁德弗里斯著. 几种一年生作物的生态生理过程. 朱德峰,程式华等译. 北京:中国农业科技出版社,1991.161-200. [12] Bouman B A M, Kropff M J, Tuong T P, et al. ORYZA2000:modeling lowland rice. IRRI. 2001. 115-147. [13] Campbell G S. A simple method for determining unsaturated conductivity from moisture retention data. Soil Sci., 1974.117: 311-314. doi: 10.1097/00010694-197406000-00001 [14] Kern J S. Evaluation of soil water retention models based on basic physical properties. Soil Sci Am J., 1995, 59:1134-1141. doi: 10.2136/sssaj1995.03615995005900040027x [15] Ritchie J T, Gerakis A, Suleiman A. Simple model to estimate field-measured soil water limits. Trans of the ASAE, 1999,42(6): 1609-1614. doi: 10.13031/2013.13326 [16] 康绍忠, 熊运章. 干旱缺水条件下麦田蒸散量计算方法的研究. 地理学报,1990,(4): 475-483. http://www.cnki.com.cn/Article/CJFDTOTAL-DLXB199004009.htm [17] 曹卫星, 罗卫红. 作物系统模拟及智能管理. 北京: 华文出版社,2000. [18] 王石立. 冬小麦生长模式及其在干旱影响评估中的应用. 应用气象学报,1998, 9(1): 15-22. http://qk.cams.cma.gov.cn/jams/ch/reader/view_abstract.aspx?file_no=19980103&flag=1 [19] 聂杰. 苏南冬小麦水分动态分析与渍涝监测. 农田水利与小水电,1995, (12): 5-6. http://www.cnki.com.cn/Article/CJFDTOTAL-ZNSD512.002.htm [20] 李远华. 节水灌溉理论与技术. 武汉: 武汉水利电力大学出版,1998. 52-53. [21] van Genuchten M Th. A closed form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J., 1980, 44: 892-898. -
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