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- W2373616077 abstract "Land use/cover change has been one of the key issues of international LUCC community since mid 1990s. However, the land use/cover change and its effects in karst areas with fragile ecosystems and dramatic land use change have not been attached enough importance, as almost turns out to be a vacant field in international LUCC research. By utilizing the integrated techniques of RS, GIS, and GPS, and employing pattern index in landscape ecology and new-established ecological value index(EVI), the authors made a case study on the land use/cover change and its effect on the eco-environmental quality at Maotiaohe river basin, and also evaluated the rationality of land use over the past 30 years. The results show that the land covers have experienced dramatic change, which brought deep influence on regional eco-environment. From 1973 through 1990, the landscape in the study area tended to be more and more fragmentized with the number of patches increasing from 3438 to 3619, and the EVI decreasing from 3626.58 in 1973 to 3343.47 in 1990, which implies the land use in the period was not sustainable. From 1990 to 2002, the landscape in the study area became less fragmentized, and the number of total patches decreased from 3619 in 1990 to 3312 in 2002. As a result, the Ecological Value Index increased from 3343.47 to 3738.40, and the general eco-environmental quality tended to be better. Besides, the case study demonstrates that the EVI put forward by the authors in the paper can well describe the ecological effect of land cover change on regional scale, which makes the index systems more perfect." @default.
- W2373616077 created "2016-06-24" @default.
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- W2373616077 date "2007-01-01" @default.
- W2373616077 modified "2023-09-23" @default.
- W2373616077 title "Assessment on land use/cover change in karst areas based on landscape ecology——A case study at Maotiaohe river basin, Guizhou, China" @default.
- W2373616077 hasPublicationYear "2007" @default.
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