Wang, Qiuju

Wu, Xinhong

Yang, Tingting

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Study on Benefit Detection of the Grassland Desertification Control Project in Xianghuang Banner, Inner Mongolia Based on "3S" Technology Qiuju Wang Chinese Academy of Agricultural Sciences, China Xinhong Wu Chinese Academy of Agricultural Sciences, China Tingting Yang Chinese Academy of Agricultural Sciences, 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/21/5-2/12 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 ]702　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ——— Application of Information Technology in Monitoring and Managing Grasslands/Rangelands ResourcesStudy on benefit detection of the grassland desertification control project in Xianghuang Banner ,Inner Mongolia based on �3S" technologyW ang Qiuj u , W u X inhong , Y ang T ingtingG rassland Research Institute Chinese A cademy o f A gricultural Sciences ,Hohhot 010010 ,Inner Mongolia Prov ince , China , E‐mail :w angq j82＠ sohu .comKey words :�３S"technology ,grassland desertification control , remote sensing , detect , benefitIntroduction Desertification is now one of the worlds important environmental and social economy questions , that is threateninghumanity摧s survival and development . Our country , is one of most seriously affected by desertification in the world . In order toeffectively reduce grassland desertification , we started a series of grassland desertification control projects . But the projectimplementation摧s process is a non‐natural process , and we don摧t know the projects摧 progress or benefit . Therefore , monitoringthe benefit of the Grassland Desertification Control Project is urgent and essential .Research method and technical route Through ground investigation based on Global Position System technology , we determinedvegetation condition data at accurately located points . Using remote sensing , we collected image data about the project area .We analyzed multiple source spatial matching data to get the projects摧 area , biomass on the ground 、vegetal composition 、vegetation cover etc , based on GIS technology . Finally , we thoroughly and systematically monitored the grasslanddesertification control projects�benefit . Technical route is as follows in Figure １ .Figuer 1 Flow chart o f bene f it monitor o f p ro j ect .Results Vegetation cover is an important index to reflect health of a grassland ecosystem . Compared with ２００３ , the vegetationcover has been improved by ８ .６４％ in the project area in ２００４ .Vegetal composition is an important component of a grassland ecosystem , and affects ecosystem function . Compared withoutside of project , there were fewer A rtemisia f rigida w illd . . , Ceratoides arborescens ( Losinsk .) Tsien et C .G .Ma ,L agochilus Bunge , Potentilla acaulis L inn . etc . inside of the projects . In general , these plants grow in dry or degeneratedhabitats . The decrease in density of these species , shows the habitat inside of projects improved .The above ground biomass is an important factor to appraise productiveness of a grassland . Compared with August , ２００３ ,thebiomass on the ground increased by ５６ .７８％ in the project area in August ２００４ .Conclusions The projects for controlling grassland desertification have effectively prevented grassland degradation ,protected bio‐diversity , and promoted the sustainable balanced development of the grassland resource ."remote sensing data digital base map radiation adjustment grassland type chart prnj e ct distribution chart + geometric cone ct.ion reference frame, project.ion transform -------.1 sample po sit.ion investigation data distill simple data select and determine vegetation distill ve get at.ion index chart establish model about vegetation index and biomass determine grassland type calculate ground biomass of project inside and outside + gather are a of different grassland tw e gather ground biomass of proi e ct inside and outside histoiy data chart of grassland type distribute, vegetation index distribute and ground biomass of prnj e ct inside and outside; report of project' benefit monitor 

Study on Benefit Detection of the Grassland Desertification Control Project in Xianghuang Banner, Inner Mongolia Based on  3S  Technology

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Study on Benefit Detection of the Grassland Desertification Control Project in Xianghuang Banner, Inner Mongolia Based on 3S Technology

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