本文關(guān)鍵詞： “一江兩湖” 泥沙分布格局 多重人類活動(dòng) 泥沙補(bǔ)給 長(zhǎng)江中下游　出處：《人民長(zhǎng)江》2017年11期 　論文類型：期刊論文

【摘要】：長(zhǎng)江中下游"一江兩湖"交織,形成我國(guó)最為龐大和復(fù)雜的江湖水網(wǎng),是水資源最為豐富的地區(qū),亦是長(zhǎng)江經(jīng)濟(jì)帶發(fā)展規(guī)劃的重點(diǎn)區(qū)域。近60 a來(lái),江湖系統(tǒng)內(nèi)、外部人類活動(dòng)頻繁,規(guī)模大,致使泥沙來(lái)源、來(lái)量及分布格局顯著變化,江湖關(guān)系相應(yīng)調(diào)整�；诮到y(tǒng)不同控制區(qū)的泥沙通量計(jì)算,揭示了"一江兩湖"泥沙分布格局調(diào)整的3個(gè)特征階段:1956~1980年江平衡、湖沉積,1981~2002年江湖同沉積和2003~2015年江湖同補(bǔ)給。下荊江裁彎、水土保持工程、湖泊圍墾和水利樞紐工程等多重人類活動(dòng)以及極端的水文情勢(shì),對(duì)江湖泥沙分布格局階段的調(diào)整影響明顯。
[Abstract]:"one river and two lakes" intertwined in the middle and lower reaches of the Yangtze River, forming the largest and most complex river and lake water network in China. It is the most abundant area of water resources, and also the key area of the development planning of the Yangtze River economic belt in the past 60 years. In the river and lake system, the external human activities are frequent and the scale is large, resulting in significant changes in sediment source, quantity and distribution pattern, and the relationship between rivers and lakes is adjusted accordingly. Based on the calculation of sediment flux in different control areas of river and lake system. It is revealed that the sediment distribution pattern of "one river and two lakes" is adjusted in three characteristic stages: 1: 1956 ~ 1980, the river balance and lake deposition. From 1981 to 2002 and from 2003 to 2015, the rivers and lakes were recharged. The lower Jingjiang River bend, the soil and water conservation project. Many human activities, such as lake reclamation and water conservancy projects, as well as extreme hydrological conditions, have a significant effect on the adjustment of sediment distribution patterns in rivers and lakes.
【作者單位】： 長(zhǎng)江水利委員會(huì)水文局;
【基金】：國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFC0402301,2016YFC0402101,2016YFC0402304,2016YFC0402305)
【分類號(hào)】：TV14
【正文快照】： 長(zhǎng)江中下游江湖系統(tǒng)由約1 130 km的干流河道、洞庭湖、鄱陽(yáng)湖3個(gè)部分構(gòu)成[1-2],區(qū)間多條支流入?yún)R,交織成我國(guó)水網(wǎng)最密集、水資源最豐富的區(qū)域,是重要的糧、油、棉生產(chǎn)基地,亦是長(zhǎng)江經(jīng)濟(jì)帶發(fā)展規(guī)劃的重點(diǎn)對(duì)象之一。近60 a來(lái),受湖泊圍墾、水土保持、水利樞紐、河道(航道)治理、

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