[1]LIU Xiao-dan,ZHANG Ke-bin,LI Rui,et al.Characteristics of Landscape Patterns in Tsagan Us Oasis in Dulan County of Qinghai Province[J].Research of Soil and Water Conservation,2008,15(04):130-133.
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Characteristics of Landscape Patterns in Tsagan Us Oasis in Dulan County of Qinghai Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 04
Page number:
130-133
Column:
Public date:
2008-08-20
- Title:
- Characteristics of Landscape Patterns in Tsagan Us Oasis in Dulan County of Qinghai Province
- Keywords:
- Tsagan Us; oasis; landscape patterns; index
- CLC:
- P901
- DOI:
- -
- Abstract:
- The characteristics of landscape patterns in Tsagan Us oasis in Dulan county are analyzed by means of remote sensing (RS), geographical information system (GIS) and theories of landscape ecology etc. The results show that the indexes of diversity and evenness are 1.248 and 0.775 4,both locate in the middle position. The dominance index in research area is not very high,but the farmland,waste-grassland and riverbed and water conservancy facilities land still take high landscape proportion,especially the farmland not only great landscape proportion but also with the development of urbanization,the emigration coming into the oasis, it appearing increased trend; the biggest landscape separation index in the research area is the forest land and the smallest is farmland,which shows that the scattered degree of farmland is the least and the land use of farmland is the biggest. The biggest regional landscape fragmentation is forest land,the smallest are waste-grassland and riverbed and water conservancy facilities land,which shows that the dividing degree of forest land is the biggest and the land use of waste-grassland and riverbed and water conservancy facilities land are the least. The biggest index of fractal dimensions is riverbed and water conservancy facilities land,the least is farmland. It means that the shape of riverbed and water conservancy facilities land is irregular, the human disturbance is the least, otherwise the shape of farm land is regular and human disturbance is the biggest.
- References:
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1900-01-01