Agrosilvopastoral Design for Forage Supply Based on Slope Units to Increase Landslide Resilience

This paper was not presented at the conference.

Abstract

This paper was not presented at the conference.

The research aimed to investigate the high-risk steep slopes and design specific vegetation patterns as agrosilvopastoral to increase landslide resilience and supply animal livestock at surrounding villages. The research was conducted at Pasir Madang village, Sukajaya Subdistrict, Bogor Regency, West Java Province.  The village area was impacted by erosion on the valley side undergoing a deepening process at a former landslide area of Halimun Salak mountain foot slopes. Data are collected through aerial photo interpretation by delineating morphological units of old landslides, slope units, and existing land use. Field surveys were conducted to (1) verify aerial photo interpretation and (2) identify and assess existing geomorphological processes. The result showed that agrosilvopastoral design would stabilize the landslides due to the tree and crop arrangement based on the morphological units from the previous landslide. The slope units were classified into three zones at the highest elevations (>40^o) as the conservation zone, the second elevation (>30^o) as the agrosilvopastoral zone, and at the lowest elevations with gentle slopes as the crop production zone. The combination of trees and crops especially vetiver across the slope have different functions in increasing landslide resilience and supporting the forage supply for livestock, especially sheep and buffalo.