2004
DOI: 10.1021/es0490875
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The 7-Decade Degradation of a Large Freshwater Lake in Central Yangtze River, China

Abstract: Freshwater lakes store water for human use and agricultural irrigation and provide habitats for aquatic fauna and flora. However, a number of these lakes have been degraded by human activities at a rapid rate. Here, we used historical land cover information and remotely sensed data to explore a 7-decade (between 1930s and 1998) shrinkage and fragmentation of Dongting Lake, the second largest freshwater lake in China, located in the drainage basin of Central Yangtze River. The water surface area of Dongting Lak… Show more

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Cited by 86 publications
(78 citation statements)
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“…The lake has been fragmented, as indicated by a decrease in its mean path size from 4.2 km 2 in the 1930s to 1.7 km 2 in 1998. The degradation of this lake is largely attributed to extensive agricultural reclamation, resulting in negative ecological consequences, such as frequent flooding, a decline in biodiversity and the extinction of a number of endemic species (Zhao et al 2005) (Fig. 3).…”
Section: Freshwater Habitats Degradationmentioning
confidence: 99%
See 1 more Smart Citation
“…The lake has been fragmented, as indicated by a decrease in its mean path size from 4.2 km 2 in the 1930s to 1.7 km 2 in 1998. The degradation of this lake is largely attributed to extensive agricultural reclamation, resulting in negative ecological consequences, such as frequent flooding, a decline in biodiversity and the extinction of a number of endemic species (Zhao et al 2005) (Fig. 3).…”
Section: Freshwater Habitats Degradationmentioning
confidence: 99%
“…3 The seven-decade degradation of Dongting Lake in Central Yangtze River, China. The solid black areas indicate water bodies (Based on Zhao et al 2005) land, which may affect food production. The conversion of agricultural land to urban land has been most pronounced in India.…”
Section: Freshwater Habitats Degradationmentioning
confidence: 99%
“…Freshwater lakes provide fundamental ecological services, including water supply, fisheries, and flood mitigation [3,4]. Following three decades of rapid economic development, eutrophication has become the most important water quality problem in China.…”
Section: Introductionmentioning
confidence: 99%
“…By the 1950s, this area had been reduced to 4350 km 2 , while the following 50 years saw yet another 1650 km 2 reclaimed, shrinking the lake by an additional 40%. Besides reduction, the lake also faces fragmentation (Zhao et al 2005). To create and sustain the resulting "polder society" requires technical engineering in the form of dams, dykes, canals, and sluices.…”
Section: Pilot Sites: Dongting Lakementioning
confidence: 99%
“…Such development weakens the lake's ability to store and safely release floodwaters. The natural siltation of the area adds slightly to this problem but is likely to decrease since the Three Gorges Dam will trap a large portion of the sediment (CCICED and WWF 2004, Schuyt 2005, Zhao et al 2005). …”
Section: Pilot Sites: Dongting Lakementioning
confidence: 99%