1) main branches of Changjiang river in Sichuan
川江中下游
2) the middle and lower reaches of Hanjiang River
汉江中下游
1.
The water transfer project from Yangtze River to Hanjiang River, as a matching project of the South-to-North Water Transfer will make a great effect on the eco-environment of the middle and lower reaches of Hanjiang River.
引江济汉工程作为南水北调的配套工程,将在改善汉江中下游生态环境方面发挥不可忽视的作用。
3) middle and lower reaches of the Yangtze River
长江中下游
1.
Fluvial process forecasting for the middle and lower reaches of the Yangtze River;
长江中下游的河床纵剖面演变分析及预测
2.
Several issues on sand excavation planning modification in mainstream channels of the middle and lower reaches of the Yangtze River;
长江中下游干流河道采砂规划修编中几个问题的探讨
3.
Spatial and temporal distribution and climatic characteristics of flood in middle and lower reaches of the Yangtze River in 1849;
1849年长江中下游大水灾的时空分布及天气气候特征
4) the middle and lower reaches of the Yangtze River
长江中下游
1.
Study on ecological flow in the middle and lower reaches of the Yangtze River;
长江中下游河道生态流量研究
2.
The working principle of the acoustic doppler profiler and its applications in the middle and lower reaches of the Yangtze River;
声学多普勒流速剖面仪原理及其在长江中下游的应用
3.
Magnetic properties of sediments in the middle and lower reaches of the Yangtze River;
长江中下游河流沉积物磁性特征初探
5) middle and lower reaches of Hanjiang river
汉江中下游
1.
Effect and Countermeasure of the Middle Route Project of South to North Water Transfer on Ecology and Environment in the Middle and Lower Reaches of Hanjiang River;
南水北调中线工程对汉江中下游生态环境的影响与对策
2.
This paper deals with the current and possible problems of environmental geology in the middle and lower reaches of Hanjiang river,which is the source place for the northward water supply project.
在分析南水北调中线工程运行后可能产生环境地质问题的基础上,结合目前业已存在的环境地质问题,将汉江中下游分为鄂北岗地、汉江夹道、引江济汉工程、汉江下游和武汉市(长江以北部分)地质环境综合整治区5个区,在此基础上对各区地质环境合理开发与综合整治提出具体对策建议。
3.
A coupled water quantity-quality model for water resources allocation in the middle and lower reaches of Hanjiang River is presented;in which water quantity and quality are both considered as key factors in water allocation process.
选取汉江中下游为研究区域,建立了汉江中下游水量水质耦合模型。
6) middle and lower Hanjiang River
汉江中下游
1.
Current situation of water quality of the middle and lower Hanjiang River and trend of its pollution;
汉江中下游水质现状及污染趋势分析
2.
Water pollution control model for middle and lower Hanjiang River;
汉江中下游水污染控制规划模型研究
补充资料：长江中下游平原自然资源
长江中下游平原自然资源
natural resources of Changjiang zhongxiayou plain
ehangiiang zhongxiayou Pingyuan ziran ziyuan长江中下游平原自然资源(natural resou职esofChan却ang而d山e一助wer plain)长江中下游平原位于黄淮海平原以东，江南与东南沿海山地丘陵以北，长江三峡以东地区。主要由长江及其两岸支流冲积而成，包括江汉平原、洞庭湖平原、都阳湖平原、皖中沿江平原、里下河平原及长江三角洲平原，大部分地区海拔低于50米，面积约20万平方千米。全区位于亚热带范围，年均温14~18℃，1月均温O~5.5℃，7月均温27~28℃;年降水量1(XX)~1500毫米，比华北平原多1~2倍，季节分配较均匀;无霜期Zro~270天，〕ro℃积温达45(X)、5以叉)℃。作物可一年两熟，长江以南可发展双季稻连作的三熟制。土层深厚，有机质含量丰富，水田占耕地面积的70%左右。江河沿岸稍高处，土质疏松，排水良好，适宜棉田早作，是中国最重要的粮棉油生产基地。 长江天然水系及纵横交错的人工河渠，使这里成为中国河网密度最大的地区，平均1~2千米/平方千米，其中杭嘉湖平原高达12千米/平方千米。境内湖泊星罗棋布，是中国淡水湖泊分布最稠密地区。中国5大淡水湖泊中有4个分布在这里。它们是都阳湖、洞庭湖、太湖、巢湖。其中太湖地区共有大小湖泊(大于0.5平方千米)189个，水域面积占总面积的8.%%，高于全国湖泊率(0.83)的10倍。湖沼地区有丰富的水生生物资源，是中国水生动植物分布最广、产量最丰的地区。保存有中华鳃、扬子鳄、白暨豚等珍稀动物。 平原境内长江干流及其众多的大小支流，河长水丰，汉江等河段落差大，适宜建水电坝址，进行多级开发。宜昌至河口段水能蕴藏量为4944.5万千瓦。尤以湖北省境内各河段水能资源格外丰富，长江和汉江过境流量800亿立方米，水能蕴藏量达40以〕万千瓦，仅次于川、滇、藏，居全国第四位，且各水系流域雨季时空分布不一，修建电站可借助长江、汉江丰枯期的先后，进行相互调剂补偿。矿产资源不多。鄂东大冶、宁(南京)芜(湖)及湘中涟源一带分别是中国著名铁矿和锰矿分布地区。(冯嘉苹)
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