伊朗锡斯坦地区沙漠灾害区划(英文)

编号 zgly0001585849

文献类型 期刊论文

文献题名 伊朗锡斯坦地区沙漠灾害区划(英文)

作者 SeyedMahmoodHOSSEINI  SaharSADRAFSHARI  MehdiFAYZOLAHPOUR 

作者单位 MemberofYoungResearchersClub  ArsanjanBranch  IslamicAzadUniversity  YoungResearchersClub  TabrizBranch  IslamicAzadUniversity 

母体文献 Journal of Geographical Sciences 

年卷期 2012年05期

年份 2012 

分类号 X171 

关键词 desertification  modifiedMEDALUSmodel  desertificationprocess  Niatakregion 

文摘内容 Desertification process as a great problem affects most of the countries in the world.This process has a high rate in arid and semiarid areas.Today,human societies are encountering the desertification phenomenon as a serious problem which causes various irreparable damages to economic and social sectors.In order to assess desertification results in production of different regional models for their application in another region the indices should be re-investigated and adjusted to local conditions.Several models have been developed for desertification evaluation.The present study,attempts to assess quantitatively the desertification process has in an area located at Sistan plain of Iran(Niatak region as a case study) by using Modified MEDALUS method.The obtained results indicated that of the whole studied region(comprising 4819.6 acres),2651.56 acres(55%) are located in medium desertification intensity class,1269.48 acres(26.34%) are positioned in severe desertification intensity class,and 898.54 acres(18.64%) are placed in vary severe desertification intensity class.