Flood vulnerability impact for food estate potential in Central Kalimantan, Indonesia

Abstract

Provision of agricultural land to support food security has criteria including optimal crop productivity, adequate intensity, guaranteed water availability (surface water and groundwater) and environmental conditions that are secured to damage (conservation). Food estate in Central Kalimantan will be allocated 30,000 ha or 300 km2 in 2020. Since the land allocation for food estate are existed near main rivers, environmental aspect from hydrological issue becomes one major aspect that must be considered. This study assesses potential rice field by using GIS and two dimensional unsteady hydrological model simulation due to flood prone area. Based on this model, vulnerable area could be measured by quantitative method in order to prevent losses act. The results show where composition of existing land use in upstream of each watershed (Barito, Kahayan, Kapuas River Basin) give different maximum peak discharge based on hydrograph curve of each zone of food estate area targeted. Food estate of 30,000 ha overall has less index of vulnerability of flood hazard, where 9% of its total area inundated by Q50 years return period discharge.

Evaluation of irrigation network performance at the anjir serapat lowland irrigation area central kalimantan

“…Tidal land utilization is a strategic option for increasing agricultural productivity [2]. The Ex Peatland Clearing (ex-PLG) in Central Kalimantan Province is the location of the Food Estate program with a potential area of 165,000 hectares [3]. The Anjir Serapat lowland irrigation area is one of the former ex-PLG areas located in Block D. Potential area of DIR Anjir Serapat is 17,609 hectares divided into a functional area of 10,115 hectares, and a potential area to be functionalized of 7,494 hectares [4].…”

Social Innovation for Creating Local Food Source and Empowering Young Farmers

“…1), rather than shortening value chain and create local food system, the country instead create food estate program that utilize peatlands. This does not solve supply chain issues, and even will bring more environmental and climate problems due to GHGs emission from peatlands [3,4].…”

Water balance analysis in perennial river flow: case study Pulau Laut, South Kalimantan

“…Channel reservoir is water infrastructure constructed to store water and commonly used in small to medium scale dryland farming especially in Indonesia. In several region such as Yogyakarta, Central Java, and West Java, channel reservoir can be utilized as irrigation supplementary to expand cultivation area, reducing drought risk, and extend cultivation period and reducing flood risk [7] also support to conserve the environment [8]. Channel reservoir is a reinforced concrete wall built across a perennial riverbed to harvest rainwater (Fig.…”