| dc.description.abstract | Indonesia has millions hectares of critical land and watersheds that are
degraded, causing floods, landslides and droughts. Drought is one of the disasters
in the dry season. This study was to analyze the spatial distribution of land
drought in the Belawan watershed. This study uses a descriptive method, namely
the collection of primary data and secondary data. Land drought analysis was
conducted by scoring with rainfall, NDVI, land cover and soil type parameters.
Validation was carried out by regression of soil water content with NDDI and
NDWI. Based on the weighted results of land cover, rainfall, soil type and NDVI,
the distribution and drought levels of the land in the Belawan watershed have five
classes, namely normal, low dry Vulnerability, medium dry Vulnerability, dry
Vulnerability and very dry Vulnerability, which is dominated by very dry
Vulnerability classes with an area of 59,341 .40 ha or 81.1% of the watershed
area. While the normal class has an area of 13,710.55 ha or 18.74% of the
watershed area. The NDDI value or high drought level in the Belawan watershed
occurs because land use in the Belawan watershed is dominated by dry land
agriculture and other types of land use that are not optimal for groundwater
storage. The relationship between the NDWI regression and soil water content is
quite strong and can be used to estimate or monitor soil water content. Mitigation
of land drought can be done by managing water efficiently, maintaining
vegetation, managing drainage channels properly, government and community
collaboration. | en_US |
