本文選題：衛(wèi)星遙感　切入點：贛江尾閭　出處：《水利水電技術》2017年07期 　論文類型：期刊論文

【摘要】：贛江尾閭地區(qū)是包括南昌市在內(nèi)的江西省經(jīng)濟發(fā)展的核心區(qū)域,贛江作為江西省內(nèi)第一大河,其尾閭地區(qū)河勢變化對其周邊地區(qū)的經(jīng)濟、防洪、環(huán)境等有著巨大的影響。運用衛(wèi)星遙感技術,對1991—2010年贛江尾閭地區(qū)贛江的河道進行了河勢演變的研究分析,得出了以下結(jié)論:(1)研究區(qū)域水域面積1991年約為121 km~2、2001年約為111 km~2、2010年約為132 km~2,經(jīng)歷了先減小后增加的變化過程。(2)歷年來尾閭地區(qū)的變化主要集中在贛江主干、西支、北支,主干變化最為顯著,而南支相對最為穩(wěn)定。(3)主干的變化主要表現(xiàn)為河道擴張、江心洲面積大幅減小或者消失,其中在南昌市附近河道變化最為明顯。推測這些變化主要是由人為影響包括有關工程建設、河砂開采等引起。(4)西支變化較為復雜,其上游段主要表現(xiàn)為河道展寬、水域面積變大,而下游段河道有所束窄;北支歷年來均表現(xiàn)為河道束窄、江心洲面積明顯增大;中支有所變化,但并不明顯。
[Abstract]:The end of the Ganjiang River is the core area of economic development in Jiangxi Province, including Nanchang City. As the largest river in Jiangxi Province, the river regime changes in the region of the end of the Ganjiang River affect the economy and flood control of the surrounding areas. Using satellite remote sensing technology, the river regime evolution of Ganjiang River in the end of Ganjiang River from 1991 to 2010 was studied and analyzed. The following conclusions are drawn: (1) the water area of the study area is about 121 km / m ~ 2 in 1991, 111 km / m ~ 2 in 2001 and 132 km / m ~ (2) in 2010, which has experienced a process of first decreasing and then increasing.) over the years, the changes in the end region are mainly concentrated in the main trunk of Ganjiang River, the western branch and the northern branch. The change of trunk is the most significant, while the main trunk of the southern branch is relatively stable. The change of trunk is mainly shown by river channel expansion, and the area of Jiangxinzhou decreases or disappears significantly. The variation of channel near Nanchang is the most obvious. It is assumed that these changes are mainly caused by man-made influence, such as engineering construction, sand mining, etc.) the changes of the western branch are more complicated, and the upper reaches of the channel are mainly shown as the widening of the channel. The area of the water area became larger, while the lower reaches of the channel became narrow; the northern branch showed narrow channel bundle over the years, and the area of Jiangxinzhou increased obviously; the middle branch changed somewhat, but it was not obvious.
【作者單位】： 天津大學水利工程仿真與安全國家重點實驗室;
【分類號】：P237;TV147

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