人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
4期
27-31
,共5页
遥感监测%河道尾闾%岸线%河道演变%鄱阳湖
遙感鑑測%河道尾閭%岸線%河道縯變%鄱暘湖
요감감측%하도미려%안선%하도연변%파양호
remote sensing%tail channel%shoreline%river channel evolution%Poyang Lake
基于遥感技术,收集了1973~2009年间鄱阳湖区域枯水期有代表性的遥感影像,通过定量和矢量图叠加方法,提取了鄱阳湖流域赣、抚、信、饶、修五大河流尾闾的河道平面形态特征。依据河道岸线的变化特征,分析了40 a来鄱阳湖五河尾闾的演变规律。在分析五河尾闾演变规律的基础上,对引起河流形态变化的主要影响因素进行了探讨。结果认为:修建堤防、河道采砂、航道疏浚、水利工程建设、水土流失等人为活动对河道尾闾影响较大。研究成果可以为未来河势控制、河道整治及岸线开发决策提供依据。
基于遙感技術,收集瞭1973~2009年間鄱暘湖區域枯水期有代錶性的遙感影像,通過定量和矢量圖疊加方法,提取瞭鄱暘湖流域贛、撫、信、饒、脩五大河流尾閭的河道平麵形態特徵。依據河道岸線的變化特徵,分析瞭40 a來鄱暘湖五河尾閭的縯變規律。在分析五河尾閭縯變規律的基礎上,對引起河流形態變化的主要影響因素進行瞭探討。結果認為:脩建隄防、河道採砂、航道疏浚、水利工程建設、水土流失等人為活動對河道尾閭影響較大。研究成果可以為未來河勢控製、河道整治及岸線開髮決策提供依據。
기우요감기술,수집료1973~2009년간파양호구역고수기유대표성적요감영상,통과정량화시량도첩가방법,제취료파양호류역공、무、신、요、수오대하류미려적하도평면형태특정。의거하도안선적변화특정,분석료40 a래파양호오하미려적연변규률。재분석오하미려연변규률적기출상,대인기하류형태변화적주요영향인소진행료탐토。결과인위:수건제방、하도채사、항도소준、수리공정건설、수토류실등인위활동대하도미려영향교대。연구성과가이위미래하세공제、하도정치급안선개발결책제공의거。
Based on remote sensing technology, the representative remote sensing images of Poyang Lake in dry season from 1973 to 2009 were collected and the estuarine flat morphological characteristics of the tails of Ganjiang River, Fuhe River, Xin-jiang River, Raohe River, Xiuhe River of Poyang Lake were extracted through quantitative and vector superposition method. Ac-cording to the evolution characteristics of shoreline of the 5 rivers, the evolution laws of the tails in recent 40 years were analyzed and the main factors causing the variation of river morphology were discussed. The study shows that human activities such as em-bankment construction, river sand mining, river channel dredging, water project construction, soil erosion play a major role in the evolution of the river tails and estuaries. The study results provide a decision making basis for the river regime control, river channel regulation and shoreline development in future.