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| 1 | 蒸散的测定和模拟计算研究进展显示文摘蒸散是地表水分循环重要而复杂的过程。本文综述了近年来国内外蒸散测定和模拟的最新进展。在测定方法上,TDR、微蒸渗仪和涡度相关技术的使用明显增加及遥感技术的应用大大加强,自动化和传感器制造技术的进步,提高了蒸散测定的精度和时空分辨率。在模拟计算方面,应用Prierstley-Taylor公式、Penman公式、Penman-Monteith方程等单一模型较多,但研究上已转向以Shuttleworth-Wallace模型为基础可估算不同植被类型和下垫面蒸散的多层模型。遥感估算区域蒸散进展明显,已提出了多种遥感估算模式。互补相关模型也在估算区域蒸散上得到重视和应用。 | 胡继超 张佳宝 冯杰 | 2004 | 土壤2004,36,5: | 25 |
| 2 | Water Budget Analysis of Red Soils in Central Jiangxi Province, China显示文摘The daily soil water budgets in the red soil areas of central Jiangxi Province,southern China,were investigated with a large-scale weighing lysimeter and runoff plots. From 1998 to 2000,peanuts (Arachis hypogaea L.) and rape (Brassica napus L.) were planted in the lysimeter and in 1999,peanuts were planted in the runoff plots. The soil water budget components including rainfall,runoff,percolation and evapotranspiration were measured directly or calculated by Richards' equation and water balance equation. The results showed that most rainfall,including rainstorms,occurred from March to July,and induced the greatest soil water percolation during the year. The evapotranspiration was still large from July to September when rainfall was minimal. Thus,the lack of synchronization in soil water inputs and losses was disadvantageous to crops growing in this region. Among the soil water losses,percolation was the largest,followed by evapotranspiration,and then soil runoff. Runoff was very small on farmland with crops. It was significantly different from the uncultivated uplands where large-scale runoff was usually reported. The soil water storage fluctuated sinusoidally,with a large amplitude in the rainy season and a small amplitude in the dry season. | CHENJia-Zhou HEYuan-Qiu CHENMing-Liangt | 2004 | Pedosphere2004,14,2: | 8 |
| 3 | Water Yield and Sediment Yield Simulations for Teba Catchment in Spain Using SWRRB Model: Ⅱ. Simulation Results显示文摘Simulated results of water yield, sediment yield, surface runoff, subsurface runoff, peak flow, evapo-transpiration, etc., in the Teba catchment, Spain, using SWRRB (Simulator for Water Resources in Rural Basins) model are presented and the related problems are discussed. The results showed that water yield and sediment yield could be satisfactorily simulated using SWRRB model. The accuracy of the annual water yield simulation in the Teba catchment was up to 83.68%, which implied that this method could be effectively used to predict the annual or inter-annual water yield and to realize the quantification of geographic elements and processes of a river basin. | ZENG ZHIYUAN and A. M. J. MEIJERINK Collage of Geography, Nanjing Normal University, Nanjing 210097 (China) International Institute for Aerospace Survey and Earth Sciences, P. O. Box 6, 7500A A Enschede (the Netherlands) | 2002 | Pedosphere2002,12,1: | 4 |
| 4 | GIS辅助下的江西潋水河流域径流的化学组成计算机模拟研究显示文摘选择美国农业部农业研究所开发的SWAT(SoilandWaterAssessmentTool)模型,在GIS和遥感技术的辅助下,对江西潋水河流域进行了SWAT模型所需相关参数的提取,实现了较大自然流域径流的化学组成分布式计算机模拟,并选择了1993年和2000年两期中模拟值变化较大的12个典型子流域,分析了两期土地利用变化与径流的化学组成模拟值之间的关系。结果表明:土地利用方式对有机氮、有机磷、硝态氮、可溶性磷和矿化磷的迁移量有明显的影响。这项研究将为农业的可持续发展和流域的综合治理与规划,为实现农业的最佳管理措施提供一定的技术支持和依据。 | 张运生 曾志远 李硕 | 2005 | 土壤学报2005,42,4: | 4 |
| 5 | 潋水流域产水产沙自然过程的计算机模拟 Ⅰ.数学模型体系与参数输入显示文摘使用流域尺度土壤和水资源管理模拟模型SWRRB(包括198个数学方程),对面积为579.3km2的江西潋水河流域的产水量、产沙量等自然过程进行了计算机模拟,获得了较好的模拟结果。模拟成功的关键是:(1)将流域划分为多个亚区;(2)精心而周到地准备输入参数;(3)按各输入参数对各输出参数影响大小的顺序进行充分的实验和参数调整以达最佳结果。文中对亚区划分和地形要素、气温、降雨、土壤特性和径流曲线系数的赋值给予了较多的注意。 | 曾志远 潘贤章 李硕 | 2006 | 土壤学报2006,43,3: | 1 |
| 6 | 潋水流域产水产沙自然过程的计算机模拟 Ⅱ.模拟结果与分析显示文摘叙述了潋水河流域产水量、产沙量等自然过程的模拟结果,分析了它们的时间变化、空间分布与模拟精度。模拟初始有个热身(warm up)阶段,特别是对产沙量的模拟。模拟精度随模拟年份增长而降低:年模拟精度产水量3年平均为98.32%;8年平均为90.27%。产沙量2年平均为88.83%;8年平为82.51%。模拟年份长到7~8年后,结果趋于稳定。表明此方法可用于流域产水产沙量的中长期年际动态监测。至于月平均模拟精度,产水量3年为83.84%,8年为86.05%;产沙量3年为68.80%,8年为59.70%。此方法的模拟结果也可应用于流域自然资源管理。 | 曾志远 潘贤章 李硕 | 2007 | 土壤学报2007,44,2: | 0 |