Hong, Jun

Liu, Jie

Yun, Xujiang

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress The Monitoring of Ecological Effect of Implement of Sand Control Project in Sand Source Area round Beijing and Tianjing Jun Hong National Animal Husbandry Service, China Xujiang Yun National Animal Husbandry Service, China Jie Liu National Animal Husbandry Service, China Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/1-6/31 The 21st International Grassland Congress / 8th International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯 ]280　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ——— Ecology of Grasslands/RangelandsThe monitoring of ecological effect of implement of sand control project in sand source arearound Beijing and TianjingHong jun1 , Y un Xuj iang1 , L iu j ie1National A nimal H usbandry Serv ice ( NA H S ) , NO . 20 Maiz idian , Chaoyang District , Bei j ing 100125 , China . E‐mail :dg0027015＠ 163 .comKey word : Rangeland , Desertification , Dynamic monitoring , Remote sensing , sand control project , area around Beijing andTianjingIntroduction Rangeland desertification is a serious ecological problem in north dry and semi‐dry region in China . Since ２０００ , thesand control project has been carried out in sand source area Beijing and Tianjing . The monitoring result exhibits that theimplementation of sand control project has lead to positive effect on rangeland vegetationMethod Dynamic monitoring of rangeland desertification depends on remote sensing technology and field investigation . The varyof vegetation cover and overground biomass inversed NDVI ( normal different vegetation index ) from MODIS data were used toexplain the rangeland quantity change from ２０００ to ２００６ /２００７ , the comparison of vegetation component get by fieldinvestigation between out and inner enclosure to illustrate the rangeland quality change , and sand area in different periodobtained by Landsat TM data through supervised classification method to quantify the dynamics of rangeland desertification .Result From ２０００ to ２００６ /２００７ , the average vegetation cover in Nemenggu , Hebei and Shanxi provinces increases ６ percentagepoints , the grass output increases １２ .０％ averagely ( Tab .１ ) , and the serious deserted rangeland at HunShanDaKe sandlotdecrease ２４ .８％ averagely ( Tab .２ ) . The proportion of eximious timothy at inner enclosure is higher than the out .Table 1 Change o f vegetation cover and grass output f rom 2000 to 2007 .provinceVegetation cover ( ％ ) Grass output ( kg / ha)２０００ ~２００７  variation( percentage point ) ２０００y ２００７y variation ( ％ )Neimenggu ２６ ,.０ ３２ �.３ ６  .３ １０２１ 葺.７ １１５０ `.３ １２ ..６Shanxi ３７ ,.７ ４３ �.３ ５  .６ １４１０ 葺.０ １５６４ `.７ １１ ..０Hebei ４５ ,.０ ５１ �.０ ６  .０ ２１２１ 葺.７ ２３８７ `.７ １２ ..５Table 2 Change o f serious deserted rangeland f rom 2000 to 2006/2007 .county decrease( ％ )abaga １８ T.８Sunitezu ２１ T.５xilinhaote ２４ T.２xianghu ２５ T.３zhengxiangbai ３１ T.０zhenglan ２７ T.８average ２４ T.８Conclusion Based on the monitoring result by remote sensing and field investigation ways , It is can be concluded that theimplementation of sand control project has led to good ecological effectiveness .ReferencesYun Xujiang , Xinqi &Yong shipeng et al . Technical Rules For Monitoring of Rangeland Resources and Ecological ( NY / T１２３３‐２００６ ) . Agriculture press of China . ２００６ .Su daxue , Zhang zizhong & Chen zuzhong et al . Parameters for degradation ,sandification and salification of rangelands ( GB１９３７７‐２００３ ) . Standards press of China ,２００３ .

The Monitoring of Ecological Effect of Implement of Sand Control Project in Sand Source Area round Beijing and Tianjing

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The Monitoring of Ecological Effect of Implement of Sand Control Project in Sand Source Area round Beijing and Tianjing

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