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- W2368987126 abstract "Based on the multiple-temporal MODIS EVI data in 2007,and by using decision tree classifier,the ecosystems in Haihe River Basin were classified,and their spatial pattern as well as its relationship to topography was analyzed. The classification based on the MODIS EVI data had an overall accuracy of 85.6% and a Kappa coefficient of 0.82. Different ecosystems distributed at different elevations. Cropland,urban,and wetland ecosystems mainly distributed on the plains below 200 m,occupying 53.8%,1.0%,and 1.3% of the total area,respectively,forest ecosystem mainly located on the low mountains between 500 m and 1000 m,accounting for 22.5%,while grassland ecosystem mainly distributed at the elevations above 1000 m,accounting for 21.4%. Different ecosystems showed different distribution trend to slope. Cropland,urban,and wetland ecosystems mainly distributed on the slopes 2°,while forest and grassland ecosystems were mainly on the slopes between 5° and 15°. With increasing slope,the percentages of cropland,wetland,and urban ecosystems decreased,that of forest ecosystem increased,while grassland ecosystem had a decreased percentage after an increasing to a peak." @default.
- W2368987126 created "2016-06-24" @default.
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- W2368987126 date "2009-01-01" @default.
- W2368987126 modified "2023-09-25" @default.
- W2368987126 title "Spatial pattern of ecosystems in Haihe River Basin based on MODIS data" @default.
- W2368987126 hasPublicationYear "2009" @default.
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