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geomorphic evolution
相关语句
  地貌演化
    Relationship Between Loess Geomorphic Evolution and Soil Erosion
    黄土地貌演化与土壤侵蚀关系的分析
短句来源
    According to five-phase large-scale airphotos of small catchment of Wangjiagou in west Shanxi(from 1959 to 1999),based on the preparation of digital elevation model (DEM) and digital orthophoto map (DOM),the dynamic monitoring targeted at geomorphic characteristics in combination with water-sediment changes has been conducted in the past 40 years so as to provide basic information for geomorphic evolution and ground surface erosion process.
    根据5期晋西王家沟小流域(从1959~1999)大比尺航片,在高程数字化模型(DEM)、正射影像图(DOM)制作的基础上,开展了40年来,以地貌特征并结合小流域水沙变化为目标的动态检测,为地貌演化、地表剥蚀过程研究提供了基础信息。
短句来源
  地貌演变
    In order to ensure the similarity of geomorphic evolution gully dam system,the relationship of the model between rainfall and sediment yield should also be equivalent to the prototype through using the way of rating sediment yield scale of natural data,except rainfall duration following the similar conditions of gravity.
    为保证沟道坝系地貌演变相似,除降雨历时遵循重力相似条件外,模型降雨产沙关系还应通过借助天然资料率定产沙量比尺的途径与原型相对应。
短句来源
  地貌演化
    Relationship Between Loess Geomorphic Evolution and Soil Erosion
    黄土地貌演化与土壤侵蚀关系的分析
短句来源
    According to five-phase large-scale airphotos of small catchment of Wangjiagou in west Shanxi(from 1959 to 1999),based on the preparation of digital elevation model (DEM) and digital orthophoto map (DOM),the dynamic monitoring targeted at geomorphic characteristics in combination with water-sediment changes has been conducted in the past 40 years so as to provide basic information for geomorphic evolution and ground surface erosion process.
    根据5期晋西王家沟小流域(从1959~1999)大比尺航片,在高程数字化模型(DEM)、正射影像图(DOM)制作的基础上,开展了40年来,以地貌特征并结合小流域水沙变化为目标的动态检测,为地貌演化、地表剥蚀过程研究提供了基础信息。
短句来源
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  geomorphic evolution
In order to study the geomorphic evolution and lifetimes of lunar craters, data were collected from (i) 32mare andterra provinces of the nearside of the Moon using the L.P.L.
      
A study on two closed salt lake basins, Tal Chapar and Parihara in the eastern margin of the Thar Desert, Rajasthan, was carried out to unravel late Quaternary geomorphic evolution of these saline lakes.
      
Pliocene to Holocene geomorphic evolution and paleogeography of the El'gygytgyn Lake region, NE Russia
      
Role of inlets in geomorphic evolution of the south shore barriers of Long Island, New York, USA
      
Erosional processes, topographic length-scales and geomorphic evolution in arid climatic environments: the 'Lluta collapse', nor
      
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The limitation of previous research method is the lack of systematic study in dynamic monitoring of changes of geomorphic characteristics(including land use patterns).Dynamic monitoring of the changes of geomorphic characteristics and land use patterns plays the role that the water and sediment monitoring cannot be a proxy for it to the even more comprehensive understanding of the surface erosion processes and impact of human activities by the relevant departments, and is also one of the key research topics.With...

The limitation of previous research method is the lack of systematic study in dynamic monitoring of changes of geomorphic characteristics(including land use patterns).Dynamic monitoring of the changes of geomorphic characteristics and land use patterns plays the role that the water and sediment monitoring cannot be a proxy for it to the even more comprehensive understanding of the surface erosion processes and impact of human activities by the relevant departments, and is also one of the key research topics.With the constant improvement in remote sensing and computer software techniques,the combination of 3D dynamic landforms and land use patterns with soil erosion process serves as an important interdisciplinary research direction.According to five-phase large-scale airphotos of small catchment of Wangjiagou in west Shanxi(from 1959 to 1999),based on the preparation of digital elevation model (DEM) and digital orthophoto map (DOM),the dynamic monitoring targeted at geomorphic characteristics in combination with water-sediment changes has been conducted in the past 40 years so as to provide basic information for geomorphic evolution and ground surface erosion process.

长期以来,我国在黄土高原重点产沙区,小、中、大流域的水文特征进行了动态监测,取得了大量的宝贵资料,这些信息对于有关部门和广大科研人员研究土壤侵蚀规律,以及为水土保持治理决策与措施配置提供科学依据起到重要作用。但由于已往研究手段的限制,以地貌特征(包括以土地利用方式)变化的动态检测缺乏系统研究。以地貌形态特征、土地利用方式的变化的动态检测,对于有关部门更加全面的认识地表剥蚀过程、人类活动的影响,提供了水沙检测替代不了的作用,是相关研究的重要内容之一。随着航天遥感、计算机软件技术的不断提高,将三维动态的地貌、土地利用方式与土壤侵蚀的过程相结合是交叉学科的重要研究方向。根据5期晋西王家沟小流域(从1959~1999)大比尺航片,在高程数字化模型(DEM)、正射影像图(DOM)制作的基础上,开展了40年来,以地貌特征并结合小流域水沙变化为目标的动态检测,为地貌演化、地表剥蚀过程研究提供了基础信息。

The paper puts forward a method of model design for dam system of small watersheds in the Loess Plateau based on the review of study achievements of predecessors and characteristic analysis of soil erosion model tests.It considers that rainfall intensity is the key factor to affect the yields of runoff and sediment in the Loess Plateau area where hydraulic erosion is the most active.Thus,it should catch the main contradiction of precipitation and sediment yield of erosion to achieve the similarity of river basin...

The paper puts forward a method of model design for dam system of small watersheds in the Loess Plateau based on the review of study achievements of predecessors and characteristic analysis of soil erosion model tests.It considers that rainfall intensity is the key factor to affect the yields of runoff and sediment in the Loess Plateau area where hydraulic erosion is the most active.Thus,it should catch the main contradiction of precipitation and sediment yield of erosion to achieve the similarity of river basin model and sediment yield characteristics of prototype basin based on integrated results of temporal or spatial rainfall erosion.In order to ensure the similarity of geomorphic evolution gully dam system,the relationship of the model between rainfall and sediment yield should also be equivalent to the prototype through using the way of rating sediment yield scale of natural data,except rainfall duration following the similar conditions of gravity.

在回顾前人研究成果及分析土壤侵蚀模型试验特点的基础上,提出了黄土高原小流域沟道坝系模型设计的方法。认为在水力侵蚀最活跃的黄土高原地区,降雨强度是影响产流产沙的关键因子,从而需要抓住降雨与侵蚀产沙这对主要矛盾,根据降雨侵蚀空间或时间的集积效果来实现模型流域与原型流域产沙特征的相似。为保证沟道坝系地貌演变相似,除降雨历时遵循重力相似条件外,模型降雨产沙关系还应通过借助天然资料率定产沙量比尺的途径与原型相对应。

 
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