Dong, Yongping

Wang, Jiating

Yuan, Qing

Zhang, Dongmei

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Research on Establishing WebGIS of Grassland Resources for Inner Mongolia Qing Yuan Chinese Academy of Agricultural Sciences, China Jiating Wang National Animal Husbandry Service, China Dongmei Zhang Heilongjiang Academy of Agricultural Sciences, China Yongping Dong 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/21/5-1/46 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. 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　 瞯 ]689　 瞯Grasslands/Rangelands Resources and Ecology ——— Application of Information Technology in Monitoring and Managing Grasslands/Rangelands ResourcesResearch on establishing WebGIS of grassland resources for Inner MongoliaYUA N Qing1 , WA NG Jia‐Ting2 , ZHA NG Dong‐Mei3 ,DONG Yong‐p ing21 G rassland Research Institute o f Chinese A cademy o f A gricultural Science , Hohhot 010010 , Chin ; 2 National A nimalH usbandry Serv ice , Bei j ing 100026 , China ; 3 Remote Sensing Center o f Heilong j iang A cademy o f A gricultural Sciences ;H arbin 150086 , China . E‐mail : yuan ＿ q＠ yeah .netKey words :grassland resources , webGIS , Java , sharing ,Inner MongoliaIntroduction The natural grassland area in the Inner Mongolia autonomous region of China is ８６ .６６７ million ha , which accountsfor ７３ .３％ of the total area of the autonomous region and ２１ .７％ of the total area of the national grassland ( Li B ,１９９３ ) .Grassland is not only important natural resource but also the important base of domestic animal husbandry . The grasslandecosystem of our country is influencing China and global ecological environment . Currently , data and information on thegrassland ecosystem are abundant but scattered in many branches and different regions . This fact does not aid the use of dataand information ( YUAN Qing , ２００６ ) by researchers and students . Furthermore , it is hard for the government to know thecondition and the dynamic change of the grasslands over time . So , the digitalizing management and digital‐simulation ofgrassland resource information has become an important direction of study . With this background , we attempted to establish aWebGIS for the grassland resource for Inner Mongolia according to the theory of GIS and using modern information technology .Date and methods The digital maps( １ :１ ,０００ ,０００) used in this study , made by the Institute of Geographic Sciences and NaturalResources Research , CAS were as follows : Vegetation type map , Soil type map and administrative map were in Shape Fileformat ; Annual average temperature map , Annual average precipitation map and annual accumulated temperature ( ≥ ０ ) mapwere in Grid File format ; Digital elevation map(１ :２５０ ,０００ ) is in DEM format ; EOS‐Modis satellite data were downloaded fromthe internet . Based on the digitized maps already developed by others , the spatial data and attribute data were saved in separatespecial format files . We used Java program language and adopted C /S ( Client / Server) project developed by a Applet softwaremodule in the JDK１ .５ environment . The Applet was embedded in HTML Web Page which is in the server on the internet .Then we established a web site named �Geographic Information System of Grassland Resources for Inner Mongolia" throughdesigning web pages and uploading all data and software packages .Results The WebGIS about grassland resources for Inner Mongolia was established on the internet , and the website is http :/ /www .grassland .cn . A Java Runtime Environment module ( JRE １ .５ or above) is required for client computers that can bedownloaded from this website or Sun website ( http :/ / www .sun .com) . Anyone can enter this system at any time . The systemoverlays ８ layers of maps , and the software module furnishes the management information , The system offers users thefollowing functions : Users can get multi‐dimension geographic information of any point with the mouse pointer on the mapcoordinates , such as latitude , longitude , vegetation type , soil type , annual average temperature , annual average precipitation ,annual accumulated temperature ( ≥ ０ ℃ ) , elevation , above ground biomass and district where the pointer is positioned . Themulti‐dimension geographic information will be displayed in the information box immediately along with user mouse movement ,no clicking and no waiting . According to users摧 interests , the system can designate single or composite geographical informationto inquire distribution area , then marked red all regions coincident with the use designated and display the total area on statusbar . Users can zoom in or zoom out the display of layer through the button of the panel , and can roam in the enlarged map bydragging the map in any displayed area using mouse .

Research on Establishing WebGIS of Grassland Resources for Inner Mongolia

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Research on Establishing WebGIS of Grassland Resources for Inner Mongolia

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