长江上游

  • 网络the upper yangtze river;upper yangtze
长江上游长江上游
  1. 长江上游输沙量阶段性变化和原因分析

    Causes for stepped changes of sediment load in the upper Yangtze River

  2. 从长江上游近500年历史气候看1860、1870年大洪水气候变化背景

    Climatic background for historical flood of 1860,1870 during past 500 years in the upper Yangtze River basin

  3. 基于GPS与GIS技术的长江上游山地冲沟的分布特征研究

    Assessing Gully Development in Upper Yangtze River Basin Based on GPS and GIS

  4. 对长江上游水资源工程建设的研究与建议(II)

    Strategies of Water Project Development in the Upstream of the Yangtze Valley ( II )

  5. SVM方法与长江上游降水落区预报

    SVM Method and Rain Location Prediction in the Upper Reach of Yangtze River

  6. 长江上游~(137)Cs法土壤侵蚀量研究

    Study on Soil Erosion Rates Using ~ ( 137 ) Cs Technique in Upper Yangtze River

  7. 以X射线衍射分析,研究了长江上游山地土壤的粘土矿物组成。

    Utilizing the method of X-ray diffraction analysis , in detail , dealed with the composition of soil clay minerals of the mountain soil vertical zonality in .

  8. 长江上游三峡库区低温、低C/N城市污水中TN去除对策分析

    Analysis on TN Removal Strategies of Low Temperature and Low C / N Municipal Sewage in Three Gorges Reservoir Region

  9. 长江上游典型区SOTER数据库支持下的土壤侵蚀危险度评价

    Soil Erosion Risk Assessment in Typical Region of Upper Reaches of Yangtse River by Using SOTER

  10. 利用最优化订正法,通过对MAPS数值降水预报进行订正,制作长江上游六大流域短期面雨量预报。

    By using the optimum correction method , the forecasting of short-rang area mean rainfall of the six drainage areas in the upper reaches of the Changjiang River is done based on correcting the MAPS precipitation numerical forecasting .

  11. 长江上游典型地区基于SOTER数据库的耕地地力评价

    Natural Productivity Evaluation of Cultivated Land Based on SOTER Database in the Typical Region of Upper Reaches of the Yangtse River

  12. 中华鲟(Acipensersinensis)是在我国东海、黄渤海大陆架生长,到长江上游金沙江下段或珠江上游江段繁殖的大型溯河洄游鱼类。

    The anadromous Chinese sturgeon ( Acipenser sinensis ) mainly lives in the continental shelf of the Yellow Sea and East China Sea , and spawns in the Yangtze River and Pearl River .

  13. 针对面积达100万km2的长江上游流域,依据100m网格的数字高程模型DEM,基于流域的地貌特征原理,构建了10km网格的大尺度分布式水文模型。

    A large scale distributed hydrological model established on the basis of DEM with 100m × 100m grids and other geographical information is presented in accordance with the principle of watershed geomorphology .

  14. 模型模拟结果表明:从整个长江上游地区看,在校正期内,5天平均流量的Nash–Sutcliffe相关系数(R2)为0.94;在验证期内,Nash-Sutcliffe相关系数(R2)为0.95。

    The Nash-Sutcliffe coefficient ( R 2 ) for 5-day average stream flow was 0.94 in the calibration period and 0.95 in the verification period for the whole upper region .

  15. 磁性矿物在极细砂中的富集大幅减少,而更多富集在粉砂组分中的现象表明了物质来源又一次发生了变化,SD较多出现可能是长江上游玄武岩加入的体现。

    The phenomenon that magnetic minerals in the very fine sand fraction reduced substantially , and more concentrated in the silt fractions indicated the change of sediment source once again . More SD magnetic minerals may be from the basalt in the upper of Yangtze River .

  16. 5m的GPS测量间距是长江上游地区描述地形的理想尺度,可以满足切沟和冲沟研究的需要。当研究对象为细沟、浅沟时,应选择3m及3m以下的测量间距。

    A GPS-survey scale of 5 m grid is suitable for assessment of gully erosion whereas a 3 or less than 3 m GPS-survey scale can meet with study needs of rills and shallow gullies in the upper Yangtze River basin ;

  17. 长江上游地区18Ka以来的植被与气候渭河上游干旱特征与降水对天水市水资源的影响

    The Drought Character in Upper Area of Weihe River and Precipitation Influence on Water Resource in Tianshui

  18. 据调查,长江上游干热干旱河谷分布于长江上游干流及其主要支流,海拔800~2000m的河谷地区。

    It is surveyed that the xerothermic and droughty river valley area in the upper reach of the Yangtze River is mainly distributed in the area of the upper reach main stream and its primary tributary with elevation of 800-2 000 m.

  19. 研究目的是采用水文模型系统(HMS)模拟峨嵋河流域暴雨水文过程,并为长江上游地区气候和水文响应研究提供可靠的信息。

    The objective of this study is to simulate the hydrologic responses to a single-storm event with a distributed hydrologic model system ( HMS ) in the Emei Watershed and to provide information for the study on the interactions between regional climate and hydrologic system in the upper Yangtze River .

  20. 本文简要介绍了137Cs示踪技术的基本原理,以及在黄土高原、长江上游等地侵蚀速率测定,泥沙来源调查,塘库沉积物断代等研究中的一些应用实例。

    This paper will introduce the bases of the technique and shows several case studies of assessment of soil erosion rates , investigation of sediment sources and dating of reservoir deposits by using the technique in the Loess Plateau and the Upper Yangtze River Basin .

  21. 重庆:长江上游地区的经济中心

    Chongqing : Economic Center in the Upper Reaches of Yangtze River

  22. 长江上游山地垂直带谱及其空间分布模式

    Pattern analysis of mountain altitudinal belts in the Upper Yangtze River

  23. 长江上游安宁河流域主要生态环境地质问题及其效应

    Eco-environmental Geological Issues and Effects in Anning River , Upper Yangtze

  24. 长江上游地区森林植被的恢复对策

    Countermeasures of Forest Restoration in the Upper Rid of Yangtze River

  25. 他们在长江上游航行。

    They sail in the upper waters of the Yangtze river .

  26. 长江上游卵石推移质数量的计算

    Quantity of gravel bed load of the upper Changjiang River

  27. 长江上游水电开发与水力学研究

    Hydropower Development and Hydraulic Research on Yangtze ' Upper Reach

  28. 长江上游的水环境问题与对策

    Problems and Countermeasures of Water Environment in the Upstream of Changjiang River

  29. 长江上游河床卵石起动流速表达式的讨论

    Research on Starting Velocity of the Bed Gravel in Upper Yangtze River

  30. 长江上游流域水文生态系统分区及保护措施

    Hydro-ecological protection and zoning in the upper valley of the Yangtze River