[1]LI Xiang,GUO Du-fa,ZHANG Bao-lei,et al.Habitat Analysis of Red-crowned Crane in the Modern Yellow River Delta Based on RS and GIS[J].Research of Soil and Water Conservation,2009,16(06):69-73.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 06
Page number:
69-73
Column:
Public date:
2009-12-20
- Title:
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Habitat Analysis of Red-crowned Crane in the Modern Yellow River Delta Based on RS and GIS
- Author(s):
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LI Xiang1, GUO Du-fa1, ZHANG Bao-lei1, JIANG Hong-hua2
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1. College of Population, Resources and Environment, Shandong Normal University, Jinan 250014, China;
2. Science and Technology Agency of Shandong Normal University, Ji’nan 250014, China
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- Keywords:
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red-crowned crane habitat; spatial diversity index; RS and GIS; modern Yellow river delta
- CLC:
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X171.1
- DOI:
-
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- Abstract:
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Based on TM imagery, topographic maps and field investigation, the habitat pattern of red-crowned cranes in the Modern Yellow River Delta was analyzed with RS and GIS. Spatial diversity index (Sd) was applied to describe the temporal and spatial variation between 1986 and 2001 in the process. According to the relativity between the Red-crowned Crane habitat and spatial diversity index, we divided Sd into four categories as follows: low value (0, 0.25], mid-low value (0.25, 0.50], mid-high value (0.50, 0.65] and high value (0.65, 1.00]. A higher value indicates better habitat quality and suitability. The results showed that the fragmentation of the Red-crowned Crane habitat increased while the connectivity and suitability of the habitat decreased with time between 1986 and 2001 in the Yellow River Delta. The area of unsuitable habitat (Sd≤0.5) gradually enlarged, which accounted for 65.11%, 70.79% and 77.06% in 1986, 1996 and 2001 respectively. The area with high or mid-high Sd values (Sd>0.5), which occupied 34.9% (1986), 28.2% (1996) and 22.93% (2001), showed an obvious decreasing trend.