Spatial and temporal variability of precipitation in the context of climate change:a case study of t

来源 :中国水利水电科学研究院第十三届青年学术交流会 | 被引量 : 0次 | 上传用户：harite

【摘要】

：

Trends,mutations and periodicity of precipitation variationin the Upper Yellow River Basin(UYRB)were studied using a fitted liner model,Mann-Kendall test,moving t-test and Morlet wavelet based on the

【作者】

：

ZHENYU LV JIANXIN MU

【机构】

：

State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of W

【出处】

：

中国水利水电科学研究院第十三届青年学术交流会

【发表日期】

：

2016年4期

【关键词】

：

Precipitation spatial-temporal distribution trend projection The Upper Yellow Ri

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

　　Trends,mutations and periodicity of precipitation variationin the Upper Yellow River Basin(UYRB)were studied using a fitted liner model,Mann-Kendall test,moving t-test and Morlet wavelet based on the measured daily data in 34 meteorological stations during 1957 to 2010,and the spatio-temporal variation characteristics of precipitation in the future during 2011 to 2100 were predicted through building statistical downscaling model using BP network.

其他文献

微润灌溉线源入渗湿润体特性试验研究

为探明微润灌溉线源入渗水分运移规律,通过室内土箱试验对微润灌溉土壤水分分布进行研究,分析不同供水水头和埋深对湿润体特性的影响。结果表明,微润管压力—流量关系呈线性,湿润锋近似是一个以微润带为圆心的圆；湿润体的最大水平湿润距离、最大垂直向上、向下湿润距离以及累积入渗量均与时间呈幂指数关系；当微润管埋深一定时,相同时间湿润锋的最大水平湿润距离和最大垂直向上、向下湿润距离随灌水水头的增大而增大；当灌水

会议

微润灌溉湿润体出流量土壤埋深供水水头

滴灌冬小麦不同施氮量下光合-气孔导度耦合模拟和验证

针对华北平原冬小麦田过量施氮(N)现象,构建和参数化不同施N量下光合-气孔导度耦合模型有利于理解降低传统施N量对作物产量影响的生理基础。本文于2012-2014年连续两个生长季在滴灌冬小麦田设置3种施N量：290、190和110kg N hm-2,开展了光合及相关生理因子的测定,确定了光合-气孔导度耦合模型关键参数。

会议

施氮量冬小麦气孔导度光合速率耦合模拟

Forecasting daily reference evapotranspiration using the Thornthwaite model and temperature forecast

Accurate Accurate daily reference evapotranspiration(ET0)forecasts are helpful for real-time irrigation forecasting and irrigation decision-making.

会议

Reference evapotranspirationpublic weather forecastsThornthwaite modelPenman-

Surface wind observations affected by agricultural development over Northwest China

Meteorological stations in Northwest China are surrounded by large proportions of cultivated land.The relations between the change of surface wind speed and the cultivated land fractions(CF)within a 4

会议

Surface wind speedAgricultural developmentNorthwest ChinaRoughness length

三峡水库干-支流相互作用中氢氧同位素分布的变化特征

为定量揭示三峡工程蓄放过程中，库区水位变化下支流回水区水动力特征，于2015 年逐月在三峡水库腹心区支流朱衣河及毗邻长江干流采集水样，进行氢、氧同位素分析测试及相关理化参数分析，利用二源线性混合模型计算干-支流相互作用过程中的水团混合贡献。

会议

三峡库区朱衣河干-支流相互作用氢氧同位素水体补给贡献率

北京新航城地区水资源特点与安全保障策略探讨

北京新机场位于北京市大兴区榆垡镇、礼贤镇以及河北廊坊广阳区之间,以新机场为核心的新航城面积预计将达到300km2,年用水量约1亿m3.本文系统分析了新航城区域水资源特点,评价了新航城地区水资源量,结合新航城未来发展格局和功能定位,分析了新航城水资源安全保障方面面临的挑战,确定了水资源配置原则,提出了综合统筹本地水、南水北调水、非常规水的新航城地区水安全保障策略.

会议

水资源新航城地表水地下水降雨量

无人机遥感技术在灌区信息化建设中的应用探讨

无人机遥感技术具有数据采集灵活、低成本且可快速获取超高分辨率影像的特色，在我国灌区信息化建设中具有广泛的应用前景。本文通过介绍无人机遥感系统的组成及特点，从灌区信息化应用的角度介绍了无人机遥感系统在灌区种植结构快速分类、遥感ET监测、输配水系统优化、摄影测量及水文模型应用等方面的应用前景。

会议

无人机遥感灌区信息化应用

Analysis of Water Consumption and Optimization of Irrigation Schedule for Winter Wheat Based on Aqua

It is very important for regional agricultural water management by researching the relationship between water consumption and yield,and proposing the optimal irrigation schedule.

会议

Aquacropwater consumptionproductivityoptimization of irrigation schedulewint

Remote sensing at irrigation district level:crop planting structure,crop water consumption and soil

Timely,accurate estimation of land surface water cycle process has great importance in drought estimation,irrigation management and water resources comprehensive utilization.

会议

remote sensingirrigation districtevapotranspirationcrop planting structurecr

Study on conjunctive use of groundwater and surface water for paddy rice irrigation in Sanjiang Plai

Most of the paddy rice in Sanjiang Plain is irrigated with groundwater.In recent years water requirement is increasing with the rapid increase of paddy field while groundwater table is falling continu

会议

groundwatersurface waterwater reusewater use efficiencypaddy irrigation

Spatial and temporal variability of precipitation in the context of climate change:a case study of t

与本文相关的学术论文