Land use change and land degradation in China from 1991 to 2001
2007
Zhang, K. | Yu, Z. | Li, Xunjing | Zhou, W. | Zhang, D.
China has long been experiencing intense land use/cover changes (LUCC). Undesirable land use/cover changes have resulted in widespread land degradation. This study examines the temporal and spatial dynamics of land use change and land degradation as evident from land use survey datasets (1991-2001). Six prominent land degradation processes were identified, namely: desertification, secondary salinisation, loss of agricultural use, deforestation, grassland degradation and loss of wetland. Rates of conversion were calculated and distribution patterns were mapped with the aid of GIS. The results showed that these land use changes have affected the wider environment and accelerated land degradation. It provided a more complete and up-to-date picture of China's land degradation which helps to develop improved conservation policies that combat land degradation and promote sustainable land management.
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