[1]LI Shuo,SHEN Zhanfeng,KE Yingming,et al.Spatial-Temporal Variation and Driving Forces of Land Use Types in the Daqing River Basin from 1974 to 2019[J].Research of Soil and Water Conservation,2021,28(01):195-203.
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Spatial-Temporal Variation and Driving Forces of Land Use Types in the Daqing River Basin from 1974 to 2019
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 01
Page number:
195-203
Column:
Public date:
2021-01-10
- Title:
- Spatial-Temporal Variation and Driving Forces of Land Use Types in the Daqing River Basin from 1974 to 2019
- Keywords:
- Daqing River; remote sensing; Landsat; land use type; driving force; farmland; construction land
- CLC:
- TP79
- DOI:
- -
- Abstract:
- In order to explore the land use types and driving forces in the Daqing River Basin for 46 years, the eighth Landsat satellite image of 1978—2019 was used. From the perspectives of area change, type change and landscape pattern change, the spatial-temporal changes of land use in the Daqing River Basin in 46 years were analyzed, and the driving forces of land change types were explained from the aspects of natural environment and socio-economic aspects. The results show that:(1)during 1974—2019, the built-up areas increased continuously, the cultivated land and water area were increasing in the former years and then decreasing in the latter years, while the forest areas were performing the opposite trend; the unutilized land and grassland kept steadily, the intensity of land use changes kept stable after dramatic changes;(2)in the plain area, built-up areas around the central city expanded correspondingly in a rapid rate, and the annual growth rate was about 5%; farmland, grassland and unutilized land were the main inward land types used for the built-up area;(3)the cultivated land area was increasing in the former years and then decreasing in the latter years, the overall cultivated land transformations had shifted from single inward transformation to outward and inward transformations; after 1974, because of population expansion, precipitation reduction and other factors, the cultivated land expanded about 4 866 km2 in the eastern foot of Taihang Mountain; after 1988, considering the urbanization, the cultivated land was decreasing sharply at the rate of 4.97% every year; in 2001, because of the policy of returning farmland to forest and grassland, the forest areas and grassland increased by 1 390 km2 and 2 435 km2, respectively;(4)after the overall cultivated land transformations had been outward and inward transformations, for example, Hebei Province, the area of inward land types was about 10 252 km2, and the outward area was 7 569 km2. The policy of cultivated land protection plays an important role to resolve the conflict between construction land and cultivated land.
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Last Update:
2021-01-15