Land use types have become more and more complicated along with growth in economic development and social changes. Various domestic competent target business authorities, such as Construction and Planning Agency of Ministry of the Interior (CPAMI); Soil and Water Conservation Bureau, Council of Agriculture, Executive Yuan (SWCB); and Water Resources Agency of MOEA (WRA), have individually conducted land use monitoring within their jurisdiction. However, in response to different business needs in the past, CPAMI, SWCB, and WRA each executed land use monitoring by employing different monitoring frequencies, reporting approaches, and satellite images with different resolutions according individual needs. Thus, it hindered governmental resource sharing.
To facilitate the integration of government resources, the Ministry of Interior (MOI) convened meetings beginning from 2012, and had reached the conclusion that the National Land Surveying and Mapping Center (NLSC), MOI should integrate the existing monitoring plans of CPAMI, SWCB, and WRA from 2014 until 2017. Acting on the instruction of integrating existing governmental monitoring plans by MOI, the NLSC began the integration plan in 2014. Based on the original monitoring resources, the monitoring frequency of each agency was adjusted to once every 2 months, and the satellite images with the ground resolution from 1.5 m to 2.5 m were chosen to be used. NLSC effectively integrated monitoring resources of various agencies in order to reduce repeated investment of government resources and enhanced the effectiveness.
In accordance with the Spatial Planning Act (Promulgated on January 6, 2016), the central competent authority shall survey land cover and monitor land use on a regular basis. Since 2018, the national land use monitoring has been planned and handled by CPAMI.
The implementation of land use monitoring and integration work of NLSC from 2014 to 2017 are as follows.