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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (35): 88-93.doi: 10.11924/j.issn.1000-6850.casb16040118

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Landscape Structure and Changes of Riparian Zone in the Lower Reaches of Shiyang River

刘淑娟,,, and   

  • Received:2016-04-19 Revised:2016-11-30 Accepted:2016-06-24 Online:2016-12-26 Published:2016-12-26

Abstract: Using landscape ecological investigating and spatial analyzing and comparing to determine the structure, landscape types and the changes of riparian bank in lower reaches of Shiyang River, it would provide reference for habitat selection of regional population, ecological function area planning and adjustment of the production structure. The results showed that: the occurrence and distribution of landscape elements constrained by fluvial geomorphology. The richness number of straight river channel was 2 times as that of branch and sheetflood. The farmland was a dominance plaque at sheetflood region. The landscape of riparian bank changed from strip to patch mosaic distribution, as well as patch richness decreased gradually and the uniformity increased from runoff to cutoff in lower reaches of Shiyang River. The landscape composition and structure changes caused by groundwater depth of 7-8 m, the riparian landscape change area were a distant from the riverbed about 200 m. landscape changes time of Shiyang River downstream riparian zone were consistent with the time of transformation of river diversions and water conservancy, due to human land use patterns changed the landscape elements, the regional water changes promoted the landscape evolution. The riparian landscape atructure is the foundation of regional oasis structure.

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