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- W2390601567 abstract "The study area-Gaotouyao town located in the southwest of Dalate county.Based on the RS,GIS and GPS techniques and combined with the ground review,the Land-sat TM images of 1987,1995,2000 and 2003 were interpreted. The changes of sand land were analyzed by using the database of desertification dynamics variation from 1987 to 2003.RS and GIS softwares,such as Erdas 8.6,Arcview 3.3 and Arcinfo 7.1 were used as interpretation tools.The results showed that: in the past nearly 20 years,the desertified lands were in the situation of developing-developing-reverse.Study area is a typical desert grassland area,in which grassland always occupies absolute superiority among all kinds of land use.The area of cropland,woodland and grassland with high coverage degree has great changes in various types of land.The conversions are mainly manifested in the various types of dunes,grassland and between grassland and dunes.The degradation of grasslands and woodlands is the key reason leading to serious desertification from 1987 to 2000.The conversions of fixed dunes,semi-fixed dunes and woodland transforming to grassland are the main land changes in different types of land use from 2000 to 2003.This transformation is in favor of the reversion of desertification.Clearly,the degradation of grassland is the main cause of desertification,and it should be significant to use grassland rationally,prevent overgrazing and realize returning farmland to forest in Kubuqi Desert." @default.
- W2390601567 created "2016-06-24" @default.
- W2390601567 creator A5056590619 @default.
- W2390601567 date "2007-01-01" @default.
- W2390601567 modified "2023-09-25" @default.
- W2390601567 title "Effect of land use change on sandy desertification in Gaotouyao town" @default.
- W2390601567 hasPublicationYear "2007" @default.
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