Abstract
Rambutan (Nephelium lappaceum) is Sapindaceae family, commonly found in agroforestry land, owned by the community in Langkat District, North Sumatra Province as One of Multy Purpose Tree Species. This study aimed to asses and map the distribution land suitability for N. lappaceum. This research was conducted in Gunung Ambat Village and Simpang Kuta Buluh Village, Sei Bingai Sub District, Langkat Regency using survey method. The soil samples data was collected in the field based on the land unit. Land suitability assessment was evaluated using matching method. To map the distribution of land suitability, the Geographic Information System (GIS) was used. Global Positioning System (GPS) also was used in this study to record the coordinate points of each soil sample from the field. The results indicate that the actual land suitability classes for N. lappaceum were dominated by moderately suitable (S2) (97.56%) in Gunung Ambat Village and moderately suitable (S2) (52.92%) in Simpang Kuta Buluh Village. The water availability (wa) and root zone medium (rc) were the dominant limiting factor in this area.
Highlights
Land suitability is used as a basis for rational land use planning
Several studies about land suitability have conducted for some plants in several locations based on Geographical Information System (GIS) (e.g. Rahmawaty et al 2019a; Rahmawaty et al 2019c; Rahmawaty et al 2019d; Harahap et al 2019; Parry et al 2018; Tarigan et al 2016; Rahmawaty et al 2016; Satriawan et al Rahmawaty et al.: Mapping of Land Suitability for Rambutan in Community Agroforestry 2014; Rahmawaty et al 2012; Chuong 2007)
There is a lack of data and information on N. lappaceum land suitability in Langkat District, this study aimed to evaluate the actual land suitability class and map the land suitability classes for N. lappaceum in Gunung Ambat Village and Simpang Kuta Buluh Village, Sei Bingai Sub District, Langkat, North Sumatra, Indonesia
Summary
Land suitability is used as a basis for rational land use planning. It needs consideration in land useJ Trop Soils, Vol 25, No 2, 2020: 107-117 ISSN 0852-257X ; E-ISSN 2086-6682 decision making so that land can be used optimally and sustainably. The GIS is used for data collection, storage, analysis, and manipulation of geographic references (Pan and Pan 2012; Rahmawaty et al 2013; Elsheikh et al, 2013; Rahmawaty et al 2015; Rahmawaty et al 2017a, Rahmawaty et al 2017b, Rahmawaty et al 2019a, Rahmawaty et al 2019b) It has been widely applied in various fields, including land evaluation (Rahmawaty et al 2019a; Mazahreh et al 2019; Parry et al 2018; Satriawan et al 2015; Rahmawaty et al 2012)
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