Land cover variation for hydropower cascade exploitation in the Yellow River Basin in 1977-2006

Ouyang Wei; FangHua Hao; Gang Li; Xuying Shi

doi:10.1117/12.812376

29 December 2008 Land cover variation for hydropower cascade exploitation in the Yellow River Basin in 1977-2006

Ouyang Wei, FangHua Hao, Gang Li, Xuying Shi

Proceedings Volume 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA); 72854Y (2008) https://doi.org/10.1117/12.812376
Event: International Conference on Earth Observation Data Processing and Analysis, 2008, Wuhan, China

Abstract

It is a widespread lack of data to support the assessments of hydropower cascade exploitation (HCE) induced impacts over long periods. From 1977 to 2006, variations of land cover for successively eight dam constructions were investigated by the application of RS data. The MSS and TM data were applied to produce land cover maps in 1977 and 2006. In combination with data from national land cover database, the data in these four years are applied to analyze land cover dynamics. The six first-level types land cover change principles were concluded after calculation. The grassland was the most extensively converted type, which reduced from 2162346 hato 2041691 ha. Other five categories land cover area increased during HCE. Furthermore, the converted area was mapped out by transformation matrix analysis, which assess the impact range for dam disturbances. The findings help future environmental impact prediction and improve regional environmental management capabilities.

Citation Download Citation

Ouyang Wei, FangHua Hao, Gang Li, and Xuying Shi "Land cover variation for hydropower cascade exploitation in the Yellow River Basin in 1977-2006", Proc. SPIE 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA), 72854Y (29 December 2008); https://doi.org/10.1117/12.812376

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