:With the rapid development and application of new techniques,cartograp hy has entered the 21st centu-ry’s digital period from computer-a ssist mapping in the 1970s,traditio nal map representation has transformed fro...:With the rapid development and application of new techniques,cartograp hy has entered the 21st centu-ry’s digital period from computer-a ssist mapping in the 1970s,traditio nal map representation has transformed from 2-D,mono-medium,static into 3-D,multi-media,dynamic and network(including internet),and gradually is developing to-wards 4-D(time,space).There appeared digital map,electr onic map,soft map,hard map,interac tive map,mingle map etc.Agricultural map needs to in clude much more contents in 3-D,multi-media than other types of map.Only electron-ic mapcanrepresentcompletely these contents.Compiling agricultural electronic atlas atcounty-levelaims to reflectscientifi-cally China’s modernization agricu lture development level,the new ach ievements of agricultural science a nd technology.Agricultural electronic atlas at county-level should take“sustainable development as the theme;systematically reflec t the natural resources and natural en vironment in a county;the spatial an d temporal distribution and changin g lawof agricultur-al resources(including climate,soil and water).In the paper the authors introduce t he concrete contents of agricultura l electronic atlas,their compilatio n process,and corresponding software and hard ware as well as an example.In agricul tur-al electronic atlas design the most advanced multi-media techniques must be used.The procedure of agricultu ral electron-ic atlas includes the study on compilation aim,content selection analysis,overall framework and data organ ization,determin-ing compilation program.Agricultu re includes many contents;each county has its own emphasis.In designing we set up a county’s theme according to its con crete situation,the atlas contents are selected around the theme.For example,the main problems faced by the agricultu re of Da’an City in Jilin Province is l and desertification,so land desertification and its control are the theme of agricult ural electronic atlas of Da’an City.When we compile other county’s agric ultural electron-ic atlas,only changing theme conten ts,can we get another county’s agric ultural electronic atlas.展开更多
文摘:With the rapid development and application of new techniques,cartograp hy has entered the 21st centu-ry’s digital period from computer-a ssist mapping in the 1970s,traditio nal map representation has transformed from 2-D,mono-medium,static into 3-D,multi-media,dynamic and network(including internet),and gradually is developing to-wards 4-D(time,space).There appeared digital map,electr onic map,soft map,hard map,interac tive map,mingle map etc.Agricultural map needs to in clude much more contents in 3-D,multi-media than other types of map.Only electron-ic mapcanrepresentcompletely these contents.Compiling agricultural electronic atlas atcounty-levelaims to reflectscientifi-cally China’s modernization agricu lture development level,the new ach ievements of agricultural science a nd technology.Agricultural electronic atlas at county-level should take“sustainable development as the theme;systematically reflec t the natural resources and natural en vironment in a county;the spatial an d temporal distribution and changin g lawof agricultur-al resources(including climate,soil and water).In the paper the authors introduce t he concrete contents of agricultura l electronic atlas,their compilatio n process,and corresponding software and hard ware as well as an example.In agricul tur-al electronic atlas design the most advanced multi-media techniques must be used.The procedure of agricultu ral electron-ic atlas includes the study on compilation aim,content selection analysis,overall framework and data organ ization,determin-ing compilation program.Agricultu re includes many contents;each county has its own emphasis.In designing we set up a county’s theme according to its con crete situation,the atlas contents are selected around the theme.For example,the main problems faced by the agricultu re of Da’an City in Jilin Province is l and desertification,so land desertification and its control are the theme of agricult ural electronic atlas of Da’an City.When we compile other county’s agric ultural electron-ic atlas,only changing theme conten ts,can we get another county’s agric ultural electronic atlas.
