Optimizing Land Suitability and Rehabilitation Techniques for Falcataria falcata, Durio zibethinus, and Callophyllum inophyllum in the Critical Land of Tenjolaya District, Bogor Regency, West Java

¹ Department of Silviculture, Faculty of Forestry and Environment, Bogor Agricultural University (IPB University), IPB Dramaga Campus, 16680 Bogor, Indonesia
² Environmental Research Center, Bogor Agricultural University (IPB University), IPB Dramaga Campus, 16680 Bogor, Indonesia

^* Corresponding author: adistipermatasari@apps.ipb.ac.id

Abstract

Critical land is a significant problem for environmental sustainability. Rehabilitation of critical land can be conducted by optimizing land suitability, planting adaptive species, and rehabilitation techniques (fertilizers and planting techniques consist of direct planting and drone seeders). Drone seeders must be applied to access remote areas. This study aimed to analyze the land suitability for Falcataria falcata, Durio zibethinus, and Callophyllum inophyllum and the effect of fertilizers and planting techniques on their growth. The method used was a spatial analysis using remote sensing and an experimental design using a completely randomized block design with two factors (fertilizers and planting techniques). The result showed that suitable land analysis for F. falcata is S3-eh (38.40%), D. zibethinus is S3 (38.40%), and C. inophyllum is S (39.28%). The C treatment (no fertilizers + direct planting) resulted in the best germination percentage for F. falcata (42.86%), D. zibethinus (85.71%), and C. inophyllum (100%). The land condition is full of rocks; hence, the height at which the seeds are dropped causes damage to the fertilizers and seeds. The application of fertilizers and drone seeders can be a potential for rehabilitation in remote areas by considering the biophysical area and composition of seed-coating.