Analysis Of Rapid Land-use/land-cover Change
In North-eastern China Using
Landsat TM/ETM+ Data
Author(s)
K. Okamoto, J. Shindo & H. Kawashima
Abstract
The self-sufficiency of rice in China with the largest population in the world is
100% and Chinese people tend to prefer quality to quantity. The area of paddy
field in the northeastern part of China has increased because the climatic
conditions in this region are suitable for cultivating Japonica rice (short-grain
rice). Large quantities of irrigation water are consumed for cultivating rice.
Rainfed rice cropping is possible in places with sufficient precipitation, while
rice cropping in regions with low precipitation is limited in places near sources
of irrigation. Flatlands are advantageous to rice cropping because of their
geographical and social conditions. The eastern Heilongjiang Province, China
was selected as the test area. Land use/land cover was classified using the
Landsat Thematic Mapper (TM) data of 1988 and the Enhanced Thematic
Mapper Plus (ETM+) data of 2002. According to the statistics of the
Heilongjiang Province, the area of paddy field has increased rapidly since 1995.
Based on the 1988 land-use/land-cover classification map, places suitable for
rice cropping were determined and compared with the distribution of paddy
fields in 2002. Most of the paddy fields for 2002 were converted from dry arable
land for 1988. Places suitable for rice cropping are places with easy access to
water for irrigation.
Keywords: climatic impact, Landsat TM/ETM+, land-use/land-cover change,
North-eastern China, paddy field, producer price, socioeconomic impact.
Keywords
climatic impact, Landsat TM/ETM+, land-use/land-cover change,
North-eastern China, paddy field, producer price, socioeconomic impact.
Related Book
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