Environment and Natural Resources Inventory Surlan and Wikanti Asriningrum ISDAL-LAPAN Abstract Application of remote sensing data and Geographic Information System (GIS) for managing land resources is proved to be efficient. Remote sensing technique is going higher on spatial resolution, shorter on repetitive cycle, and wider on spectrum range. Indonesia needs a faster method to solve the problem on getting the up-to-date natural resources information. Environment and natural resources inventory by both remote sensing and GIS technique is suitable for vast areas in Indonesia. Manage the natural resources is important in purpose to get sustainable function as well as application. The way to get the information from remote sensing data is by digital or visual interpretation. Digital processing is used for getting information that has direct correlation with spectral characteristic. While, visual processing is used for getting information that has limited correlation with spectral characteristic. Nowadays, LAPAN is the institution which has experiences to serve the data as well as its application. Besides, LAPAN also serves quick information and up-dating periodically. Based on the information, LAPAN gives socialization and cooperation program by providing Land use/land cover digital map on scale 1:100.000 and 1:50.000 which are ready for Indonesian Area such as Sumatra, Java, Bali, NTB, NTT, Kalimantan, Sulawesi, Kepulauan Maluku and Papua Islands. Land use/land cover of the area is relatively dynamic and need to be monitored periodically. INTRODUCTION Some big islands in Indonesia such as Java, Sumatra, Kalimantan, Sulawesi and Papua, which serve natural resources, is used as prime sector to support human life in a few last decade. Because of the exploitation, natural resource management become very important in purpose to get sustainable function as well as application. Indonesia is a big archipelago state which its development mostly based on natural richness management. Beside, geographically the islands are spread over in the sustainable natural disaster. Consequently, it is need up-dated information periodically for the existing environment and natural resources map and for the first up-dating need faster time. Based on World Bank survey, the capability of developing country only serve 2% map per year for their whole region. With assumption that mapping started from 1970, so Indonesia still need about 15 years more to fulfill the map necessity on scale 1:100.000 - 1:25.000. On the other hand, activities exploitation, land cover change, and natural hazard have changed a lot of land condition. Inventory these information changing is needed to up-date environment and land resource map in a short time and periodically. LAPAN as a government institution in Indonesia has a lot of experiences on supplying and application satellite remote sensing data, and was develop the infrastructure a few years ago and supported by competence and relevant man resources. In this function, LAPAN have some performance on data collecting, processing and analysis to produce required information, especially actual land use/ land cover information from satellite remote sensing imagery base. Based on these condition and problems ISDAL aims to:
Processing and analysing satellit remote sensing image -as a main data- supported by topography map scale 1:25.000 and 1:50.000 as a geo-references. These maps is from Bakosurtanal. The interpretation supported by information from maps of RePPProT project and also supported by field check information. Steps of detail information production showed in Figure 1. Landsat image with medium spatial resolution used to produce maps in scale 1:100.000 - 1:50.000 for whole Indonsia region. While IKONOS, SPOT, Quickbird imageries with high spatial resolution used to produce maps in scale 1:10.000 and more which is only for a part region in priority. Steps of work is, interpretation visually and delineation in hardcopy Landsat image RGB 542 scale 1:100.000. Digitation from the delineation results using Autocad 1.4 software. Land use and land status map from RePPProT used to support in object identification. In cloud cover area, identification substitute by image in another date in the same area which has no cloud cover. Infrastructure information and administration border compiled from Topography map scale 1:250.000. The information present in a map with map sheet arrangement according to Bakosurtanal.  RESULTS Activities started from 2002 to finish land use/ land cover spatial information for Sumatra. In 2003 continued to another region, Java, Bali, NTB and NTT. In 2004 continued the same activities for Kalimantan, Sulawesi, Kepulauan Maluku, and Papua region. The resul printed in A3 hard copy and in CD/DVD. In 2005, the activities is integration and up-dating for all of these information. Land use/land cover spatial information in detail showed in Table 1 and the example of map showed in Figure 2. 
 Figure 2: Indonesia land use/land cover spatial information, Banten, West Java Province The information is used by government institution as well as by private sector such as for planning, evaluation, monitoring of development realization, especially related with environment and natural resources. CONCLUSIONS Inventory of environment and natural resources play an important role for development in Indonesia. Remote sensing satellite data is needed to fulfill this information especially for a wide area and various conditions like Indonesia. Land use/land cover is relatively dynamic conditions and needing to detect and monitor periodically. REFERENCES
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