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作 者:张树文[1] 蔡红艳[1,2] 匡文慧[3] 张新乐[4] 张养贞[1] 吕妍[5]
机构地区:[1]中国科学院东北地理与农业生态研究所,吉林长春130012 [2]中国科学院研究生院,北京100049 [3]中国科学院地理科学与资源研究所,北京100101 [4]东北农业大学资源环境学院,黑龙江哈尔滨150030 [5]吉林大学地球科学学院,吉林长春130061
出 处:《地理科学》2009年第6期846-852,共7页Scientia Geographica Sinica
基 金:科技部科技基础性工作专项项目(SB2007FY442)资助
摘 要:以2000年Landsat-7 ETM+影像、地形图、数字高程数据等为数据源,从河道平面形态及河流纵剖面形态对黑龙江上中游河道特征进行分析。从河流动力特征、流域自然环境条件及人类活动方面探讨其对河道形态特征形成的影响。研究发现:黑龙江上中游河道曲折系数均值为1.20,属于微弯顺直型河道,整体相对稳定,但局部河段河道形态复杂,河流纵剖面形态为下凹型曲线;河流形态的形成遵循一定的河流动力学规律,是水流和河床在自然因素与人类活动影响下相互作用结果。Based on Landsat-7 ETM + images in 2000, relief maps, Digital Elevation Model (DEM) and other related data, this research investigated the channel characteristics of the upper and middle Heilongjiang River, from the channel plane configuration and longitudinal profile morphology, to discuss how river dynamics, natural environmental conditions and human activities influenced the Heilongjiang channel characteristics. Methods used in the study included remote sensing technique and GIS spatial statistical analysis. The result indicates that the mean sinuosity over the upper and middle Heilongjiang River is 1.20, and the whole river is relative stable, though in partial reaches the channel plane configuration is complicated. The longitudinal profile of the upper and middle Heilongjiang River is concave. The channel characteristics follow the river dynamic character and it is the result of the interaction of water and river bed which is influenced by natural environmental conditions and human activities. Integrating RS and GIS technologies is an effective way to identify the channel characteristics and further research should be made in combination of muhi-temporal RS images, hydrological data and other measured data to reveal the evolvement of Heilongjiang River.
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