GIS technology has advanced rapidly in recent decades to become a standard tool for managing and analyzing spatial data to solve spatial problems. Spatial modelling is one of the GIS products that can be used as a reference for future policy development for effective spatial management. This research aims to create land use models for the Tanah Datar area of West Sumatra in 2025 and 2035. The model is created using the Cellular Automata method and remote sensing data. The land use data from 1989 and 2002 became the model's base year, and 2019 served as the basis for testing the model's accuracy. According to the modelling results, there are several trends in land use change. Dryland agriculture expanded significantly, indicating an improvement in the pattern of agricultural land use. This condition suggests that regional development should focus more on potential and good spatial management.

This study aims to design a community education model in waste management in the city of Padang. This type of research is qualitative research using data collection techniques, namely literature study, observation and interviews. The results showed that the paradigm of housewives regarding waste management that relies on downstream must be replaced with a new paradigm, namely waste management from upstream to downstream which covers the entire waste cycle. The obstacle in waste management is the perception of the community that waste management is the responsibility of the local government, not the responsibility of each individual. Furthermore, the sanctions given to dumping garbage in any place have not provided a deterrent effect. Therefore, based on the results of the field and literature studies carried out, obtained a community education model design based on the recycle waste management model by synergizing the government, community and company / private sector and emphasizing adult education. That is, the design of the resulting model encourages people's knowledge and self-confidence, so that it can also encourage positive change, both physically and mentally in a real, comprehensive, and sustainable manner.

A village is a unitary legal community that has territorial boundaries. The absence of clear territorial or village boundaries can lead to an unclear division of village assets, resulting in conflict between villages and districts. Nagari Situjuah In the District of Sipuh, Limo Nagari, Kabupaten Limapuluh Kota is one of the villages that do not have clear boundaries. This research aimed to produce an indicative boundary of Nagari Situjuah Dalam using aerial photographs of UAVs following the regulation of Perka BIG Number 3 of 2016. The research was carried out in several stages. The data was acquired using UAV RTK referred to BIG's Geodesy Control Network. The measurement results show that the aerial photograph of Nagari Situjuah Banda Dalam using UAV has a spatial resolution of 10.1 cm with horizontal accuration of 1.04 m at 90% confidence and a total RMSEr of 0.69 m2

Penetapan batas Desa perlu dilakukan sesuai dengankebijakan satu peta yang tertuang dalam Peraturan Pemerintah Nomor 9 Tahun 2016 yang belum berjalan secara optimal termasuk di Provinsi Sumatera Barat. Kabupaten Limapuluh Kota merupakan salah satu kabupaten yang belum memiliki batas desa atau nagari yang jelas dan tertuang dalam peta. Oleh karena itu, untuk merealisasikan Kebijakan Satu Peta, sangat dibutuhkan tenaga yang terampil untuk dilapangan maupun dalam pengolahan data, dimana tenaga tersebut dapat diisi oleh mahasiswa Jurusan Geografi Universitas Negeri Padang. Mahasiswa Jurusan Geografi memiliki keahlian dibidang penginderaan jauh, system informasi geografis dan survey pemetaan sehingga sangat cocok untuk dijadikan sebagai konsultan (pelaksana kegiatan). Dengan demikian, pada kegiatan pengabdian ini, solusi untuk permasalahan batas desa/nagari dapat diselesaikan dengan membentuk konsultan muda yaitu Multi Anandita Consultan (MAC), menjalin kerjasama dengan Pusat Studi Perencanaan dan Pengembangan Desa Kota (PSP2DK) yang tergabung dalam kesekretariatan dan tim teknis kegiatan penetapan dan penegasan batas nagari di Kabupaten Limapuluh Kota.