Journal of Geographical Sciences ›› 2020, Vol. 30 ›› Issue (2): 281-296.doi: 10.1007/s11442-020-1728-5
• Research Articles • Previous Articles Next Articles
LIANG Xinyuan1, LI Yangbing1,2,*(), SHAO Jing’an1,2, RAN Caihong1
Received:
2019-03-04
Accepted:
2019-04-28
Online:
2020-02-25
Published:
2020-02-21
Contact:
LI Yangbing
E-mail:li-yapin@sohu.com
About author:
Liang Xinyuan (1996-), Master, specialized in land use change and integrated physical geography. E-mail: liang_xiny @foxmail.com
Supported by:
LIANG Xinyuan, LI Yangbing, SHAO Jing’an, RAN Caihong. Traditional agroecosystem transition in mountainous area of Three Gorges Reservoir Area[J].Journal of Geographical Sciences, 2020, 30(2): 281-296.
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Table 1
Reference standards for different settlement attributes"
Settlement type | Identification standard | Sources | Interpretation reference |
---|---|---|---|
Decline | Signs of cultivation near settlements are disappearing and abandoned land trends are clear; the landscape tends to be monotonous; the colors of residential locations are dim; and surrounding roads are gradually replaced by “forest-shrub-grass”. | CNES Astrium Quick Bird (0.51 m) | |
Stagnation | The distribution of the surrounding farmland is scattered and there are no signs of consolidation; the overall landscape pattern is balanced; the colors of residential locations are generally dark; and infrastructure construction is declining. | | |
Development | The surrounding farmland shows order and there are signs of consolidation; a weak fruit forest planting trend appears; the ecological landscape tends to be diverse; the colors of the residential locations are white; and individual homes are clear. | | |
Vigor | Clearly fruit forest planting trend near the settlements; the surrounding infrastructure is complete; the landscape is diverse; the colors of residential locations are bright; and the stereo perception of the settlements is strong. | |
Table 2
Classification of land use degree"
Land grade | Unused | Natural | Agricultural | Construction |
---|---|---|---|---|
Land use type | Unused land | Forest land, grass land, water and abandoned farmland | Sloping farmland, orchard and economic fruit forest | Urban land, rural residential land, industrial and mining land and transport land |
Graded index | 1 | 2 | 3 | 4 |
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