[1]DUN Yao-long,WANG Jun,BAI Zhong-ke,et al.Grain Effect of Landscape Pattern Index of Land Consolidation Area in the West of Songnen Plain[J].Research of Soil and Water Conservation,2014,21(05):66-71.
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Grain Effect of Landscape Pattern Index of Land Consolidation Area in the West of Songnen Plain
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 05
Page number:
66-71
Column:
Public date:
2014-10-28
- Title:
- Grain Effect of Landscape Pattern Index of Land Consolidation Area in the West of Songnen Plain
- CLC:
- F301.21,P901
- DOI:
- -
- Abstract:
- Land consolidation project of Da’an City in the west of Songnen Plain was selected as the study area. Based on 1∶10 000 current land use map before land consolidation (2008) and 1∶10 000 land consolidation planning map after land consolidation (2014), GIS technology was used to make the land consolidation landscape type map and the landscape pattern index was calculated by using the software of Fragstats. 10 landscape pattern indices which are good to describe land consolidation landscape pattern characteristics were selected to analyze their grain effect in the range of 5～300 meter grain size under two different spatial extents. And mathematical model was used to fit the change trend of landscape pattern indices. The results indicated that the landscape pattern index showed a monotonic increase or decrease, decline after the first increase and irregular change of 3 kinds of trend along with the increase of grain. There are differences with turning point on different spatial extents of part of landscape pattern indices, part of landscape pattern indices have different sensitivity along with grain size increase before and after land consolidation. Most of indices can be very well fitted with mathematical model. Part of indices such as patch number, patch density, largest patch index, patch area variance and landscape shape index were fitted better after land consolidation. The suitable grain of landscape pattern analysis is 15～35 meters in land consolidation project area of Da’an City.
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