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Assessing Hydrological and Sedimentation Effects from

Based on the statistical number of sand mining vessels from limited remote sensing images and the Ship Affairs Department of Jiujiang City Jiang et al pointed out that the magnitude of sand mining in Poyang Lake was about 2154 3 Mt with a total mining area of 260 4 km 2 during the period 2000–2010 However it should be noted that this calculation may have large errors since these vessels are changing at any Get price

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Sand mining: the global environmental crisis you've

T imes are good for Fey Wei Dong A genial middle-aged businessman based near Shanghai China Fey says he is raking in the equivalent of 180 000 a year from trading in the humblest of commodities: sand Fey often works in a fishing village on Poyang Lake China's biggest freshwater lake and a haven for millions of migratory birds and several endangered species Get price

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Sand mining: the global environmental crisis you've never

Feb 27 2017A boat is stranded on the Poyang Lake in east China site of one of the world's biggest sand mines Photograph: Xinhua/Barcroft Images Times are Get price

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Sand mining threat to Siberian Cranes at Poyang Lake

Mar 28 2016Growing evidence points to intensive sand dredging as having a significant impact on water levels and flows for Poyang Lake [EAAF025] the most important wintering area for waterbirds in East Asia On average 400 000 waterbirds spend the winter at Poyang including 98% of the world's critically endangered Siberian Crane Get price

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Analyzing the Inundation Pattern of the Poyang Lake

The soil wetness condition is a useful indicator of inundation hazard in floodplains such as the Poyang Lake floodplain Special Sensor Microwave Imager (SSM/I) passive microwave data were used to monitor water-saturated soil and open water areas of the Poyang Lake floodplain from 2001 to 2008 capturing the inundation patterns of this area in space and time Get price

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Gongqingcheng

Gongqingcheng was founded in 1955 when the first group of 98 students from Shanghai were directed to go into the countryside to farm a wilderness area near Poyang Lake Hu Yaobang as the leader of the Communist Youth League made a special trip to the area forty days after the students arrived and he consoled and ate with them Get price

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Barren Beachfront

Sand blown from the Poyang waterfront has besieged the fields of Dongguang Village in Jiangxi's Pengze County Almost half of the village's 100 hectare farmland suffers from severe waterlog as the surrounding sand has trapped rain water inside the fields In Shanfeng Village Yudu County in south Jiangxi almost all fields are sandified Get price

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Effects of Sand Mining on Physical Processes and

Nearshore wave and sediment transport patterns were modeled for existing and post-dredging conditions with borrow site sand volumes ranging from 2 1 to 8 8 10 6 m 3 Wave transformation modeling indicated that minor changes will occur to wave fields under dominant directional conditions and selected sand extraction scenarios Get price

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Shocking Photos Show China's Largest Freshwater Lake Is

Nov 10 2016The freshwater lake which can grow to 1 737 square miles—big enough to cover an area larger than Rhode Island—sees regular seasonal variations but has started receding earlier each year since 1952 Xinhua China's official news agency said that diversions from the Yangtze River a prolonged dry season and industrial activities are responsible Get price

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Sand wars: The global fight for sand is getting ugly

The coming sand wars The Chinese hunger for sand is immense and sand mines on the mainland are no longer low-hanging fruit Poyang Lake China's largest lake is also the largest sand mine in the world Two hundred and thirty-six million cubic meters of sand are extracted from it every year Get price

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Insight:Sand Mining Environment – Frisky Market

Mar 06 2017The biggest can haul in as much as 10 000 tonnes of sand an hour A recent study estimates that 236m cubic metres of sand are taken out of the lake annually That makes Poyang the biggest sand mine on the planet far bigger than the three largest sand mines in the US combined Get price

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Developing water quality retrieval models with in situ

season The lake receives water from five rivers (Raohe River Xinjiang River Fuhe River Ganjiang River and Xiushui River) and drains into the Yangtze River through a channel in the north With the increasing population and intensive eco-nomic activities within Poyang Basin during recent decades the water quality of Poyang Lake shows a clearGet price

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Sand mining: the most under

Satellite data from NASA [9] highlights just how radically the Yangtze River has changed the image showing the region just below Poyang Lake – China's largest freshwater lake and overwintering site for 98% of Siberian cranes – which is also now the world's largest salt mine extracting 236 million m 3 of sand per year [13] Miners pounced on the site after Chinese court ruling in 2000 Get price

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The Bermuda Triangle of the East Mystery Continues

Laoye Temple sits before a 24 km channel of water which connects Poyang Lake the largest freshwater lake in China with the Ganjiang River's exit point It sits between 28 22′ – 29 45′ degrees N latitude roughly the same as that of the Bermuda Triangle in the Caribbean Get price

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found that that the current Poyang Lake mainly consists of three types of sand body deposits including deltaic deposit overflow channel deposit and aeolian deposit and the distribution of sand bodies was affected by the above three types of depositions jointly Get price

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Remote sensing monitoring of excessive sand dredging at

Study area and dataset 110 2 1 Environment and sand resources of Poyang Lake 111 Poyang Lake is located in the lower Yangtze River basin in southeastern of China (2822-2945N 112 and 11547-11645E Fig 1) and provides convenient means of transportation to cities along 113 Yangtze river Get price

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Sandmining is destroying Asia's rivers

May 05 2017A recent study estimates that 236 million cubic metres of sand are removed from the lake very year —about 9% of the total produced by China That makes Poyang the biggest sand mine on the planet Researchers say sand mining is the major reason why the lake's water level has dropped dramatically in recent years Get price

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Sand mining and increasing Poyang Lake's discharge ability

Sand mining and increasing Poyang Lake's discharge ability: A reassessment of causes for lake decline in China Journal of Hydrology 2014 Claire Huber Get price

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Expedition to Poyang Lake Jiangxi County!

Poyang Lake is a winter home to at least 98% of the world's total population of Siberian Cranes who fly all the way from the northern tundra of Russia to winter and breed in China My main goal was to see these birds in close proximity and photograph them in good light Get price

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Sandmining is destroying Asia's rivers

Poyang lake in 1995 (Image: Nasa Earth Observatory) Poyang lake in 2013 (Image: Nasa Earth Observatory) A recent study estimates that 236 million cubic metres of sand are removed from the lake every year – about 9% of the total produced by China That Get price

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Poyang Lake No 2 Bridge under construction in E China's

Photo taken on May 21 2018 shows the construction site of the Poyang Lake No 2 Bridge in east China's Jiangxi Province The main structure of the bridge's main tower will be finished in June The bridge linking Duchang County and Lushan City in Jiangxi is a key project of Duchang-Jiujiang Get price

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Changes in rice cropping systems in the Poyang Lake Region

Changes in rice cropping systems in the Poyang Lake Region China during 2004–2010 657 within a rice-dominated surrounding area The linear distance between any two GPS points was more than 2 0 km The field truth information was used for paddy rice field interpreta-tion and NDVI extraction Get price

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Changing Responses of Land Dynamics and Vulnerability to

Environmental Change near Poyang Lake China PI: Daniel G Brown School of Natural Resources and Environment University of Michigan Co-PIs: Shuming Bao Kathleen Bergen Funded by NASA's Land Cover Land Use Change Program (LCLUC) We aim to understand the inter-relationships between flooding land-cover and land-use changeGet price

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China to launch 1st inland underwater archaeology project

Oct 22 2010China to launch 1st inland underwater archaeology project While a new field of exploration it has seen rapid development in recent years his rival for the throne near Poyang Lake Get price

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Sand Extraction: 1 Introduction

Sand mining has led to deepening and widening of the Lake Poyang channel the largest freshwater lake in China and a biodiversity reserve of exceptional importance and to an increase in water discharge into the Yangtze River This may have influenced the lowering of the lake's water levels which reached a historically low level in 2008 Get price

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Feb 16 2018Zhou Haiyan is happy that up to 1 200 endangered white cranes a third of the global population spend winter in lotus root fields near Poyang Lake China's largest freshwater lake Zhou a Get price

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Lake

Poyang in winter looks mainly like a river delta flowing around wide sand bank areas (dry season) in summer Poyang turns into a large lake (wet season) Poyang hence passes transient stages of a river and lake ecosystem every year Get price

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Xin River

EconomyEdit The area of Poyang Lake is a major rice growing area while wheat and tea are grown in the upper reaches of the Xin River The Xin River basin has a human population of more than 4 million About 83% of the arable land in the basin is used for paddy fields Get price

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Sandmining is destroying Asia's rivers

A recent study estimates that 236 million cubic metres of sand are removed from the lake very year —about 9% of the total produced by China That makes Poyang the biggest sand mine on the planet Researchers say sand mining is the major reason why the lake's water level has Get price

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Sand Mining at Poyang Lake China

Burnhan has conducted field research on wintering waterbirds at Poyang Lake "This is a lake that hosts 98 percent of the endangered Siberian Cranes and Oriental White Storks as well as a significant number of over a dozen other endangered waterbirds in the Get price

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Comprehensive development of water and soil resources in

Poyang Lake is one of the biggest fresh water lakes in China and also is an important rice and farm production base There is heavy population in this area Since 1949 884 dikes were built in Poyang Lake which protect more than 50861hectares fertile fields so Get price

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