红壤资源信息系统及其初步应用

Red soil is a very important soil resource in southern China. However, due to being simultaneously of high productive potentialities and severely degraded, it needs harnessing urgently. Red Soil Resource Information System (RSRIS) based on remote sensing and geographic information system (GIST plays an important role in survey, evaluation, utilization and management of red soil resource. RSRIS of Cauzhou City, Zhejiang Province (1:250000) and RSRIS of Longyou County, Zhejiang Province (1:50000) have been made respectively on SUN SPARC station and using ARC/INFO. This paper introduces the system design, database creation and system functions, and it particularly focuses on developing applied models, such as red soil resource division and mapping, suitability evaluation, erosion risk evaluation, plant utilization zone etc. The problems on study of RSRIS and its developing strategy are also discussed.

Red soil resource information system and its preliminary application

Red soil is a major soil resource in southern China. However, due to being simultaneously of high productive potentialities and severely degraded, it needs harnessing urgently. The Red Soil Resource Information System (RSRIS), based on remote sensing and a geographical information system (GIS), is used in the survey, evaluation, utilization and management of the red soil resource. The RSRIS of Quzhou City, Zhejiang Province (1:250 000) and RSRIS of Longyou County, Zhejiang Province (1:50 000) have been made. This paper introduces the system design, database creation and system functions, and it focuses on developing applied models, such as red soil resource division and mapping, suitability evaluation, erosion risk evaluation, plant utilization zone etc. The problems associated with RSRIS and its developing strategy are also discussed.