[1]LI Xiao-yan,ZHAO Guang-min,LI Bao-yi.Analysis of Changing Situation of Land Resources in Northeast China[J].Research of Soil and Water Conservation,2010,17(05):68-74.
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Analysis of Changing Situation of Land Resources in Northeast China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
68-74
Column:
Public date:
2010-10-20
- Title:
- Analysis of Changing Situation of Land Resources in Northeast China
- Keywords:
- land use change; regional difference; driving factors; Northeast China
- CLC:
- F323.211
- DOI:
- -
- Abstract:
- Based on RS and GIS technology, this paper analyzed the changing trend of Northeast China from 1986 to 2000. After doing this, spatial differences and main driving forces of land use changes were explored. Results showed that, Northeast China was characterized with intensive land use change due to increment of human activities. In the study period, cropland increased substantially, while woodland, grassland, water body and marsh decreased largely. Among all land use types, paddy field increased the fastest, and increased by 20% from 1986 to 2000. In contrast, grassland and marsh decreased the fastest, by 17% and 12%, respectively. In terms of features of land use in three provinces, Liaoning province was characterized by loss of cropland and woodland and increase of dry farmland. Jilin province was characterized by increase of paddy field and dry farmland and loss of grassland. Heilongjiang province was characterized by increase of dry farmland and dry farmland at the cost of shrinkage of woodland, grassland and marsh. In Northeast China, cropland increased in mountanious and hilly regions of the Great Xingan Mountains, the small Xingan Mountains, and Changbai Mountains, semi-aid and semi-humid regions of Sanjiang Plain, Jilin Province and Heilongjiang Province. Woodland decreased in mountanious and hilly regions of the Great Xingan Mountains, the small Xingan Mountains, and Changbai Mountains. Grassland decreased in semi-arid and semi-humid grassland regions, located in transition regions of Heilongjiang province, Jilin province, Liaoning province and eastern part of Inner Mongolia. In terms of driving forces, climate warming supplied favorable conditions for agricultural reclamation. Population augment, regional economics development, and quick urbanization were confirmed as main driving factors for land use change.
- References:
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1900-01-01