Dry Land and Mountains Management Study in the Aesesa Flores River Flow Area, East Nusa Tenggara

Abstract

Aesesa Flores (AF) River Flow Area (RFA) is a natural landscape. Its headquarters are in Bajawa, Ngada Regency, and its remnants are in Nagekeo Regency. The peaks of the mountains hold rainwater and flow it naturally into the sea through the rivers. The land area concerned is the water capture area. This ecosystem consists of natural resources (land, water, and vegetation) and human resources that exploit natural and artificial resources. The state of RFA will be of great in the planning and policy of sustainable AF management. The aim of this study is to find out the level of vulnerability of dry land resources. The study will give special attention to the area of the AF river stream, the biophysical picture of dry ground in the river flow area, the vegetation, the water system of Aeseza Flores, and the role of dryland agriculture and hills in food production. The method used in this study is a library approach. The results show that the soil type in the RFA Aesesa Flores includes five soil types: aluvial, grumosol, latosol, and mediterranean. Aesesa Flores is categorized into five critical level of land, i.e., rather critical, critical potential, critical, highly critical, and non-critical. The level of density of the river intersection in a RFA and Sub-RFA region indicates the level of contribution of the RFA to the threat of flooding that may arise if the regional balance is disturbed. In the northern part of Nagekeo district, the river level is higher on steep land.