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All Journal AGRIVITA, Journal of Agricultural Science
Yasushi Mitsuda
Miyazaki University
Agriculture, Biological Sciences & Forestry

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Detecting Potential Biodiversity Hotspots for Development of REDD+ Safeguards Based on Analyses of Land-Cover Complexity in East Java, Indonesia Yasa Palaguna Umar; Satoshi Ito; Yasushi Mitsuda; Ryoko Hirata; Tsuyoshi Kajisa; Hagus Tarno; Karuniawan Puji Wicaksono; Arifin Noor Sugiharto
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.2010

Abstract

We examined a new method to detect the biodiversity hotspots in terms of complex patch mosaics at a regional scale in East Java, Indonesia, in order to develop the safeguard against further expansion of monocultures by REDD+. A land-cover map consisting of five major land-cover types (forest, agricultural land, bare land, water, and residential) was generated with a 30 m x 30 m resolution by the unsupervised classification of a Landsat8-OLI image. Shannon’s diversity index (H’) was calculated for each of 10.98 ha (11 x 11 pixels) landscape throughout the study area based on the dominance of the land-cover types by five calculation methods with different combinations of land-cover types. Then, the landscapes of upper 5 % in H’ was selected as the potential hotspots in terms of highly complex patch mosaics. Among the five potential hotspots, the calculation of H’ with four land-cover types (forest, agriculture, water, and bare land) was thought to be most suitable to set conservation targets at a regional scale, because the potential hotspots by this method showed aggregated distribution patterns, and was less sensitive to the small residential patches. While, no clear distribution trend was observed along the environmental gradients.
Co-Authors Arifin Noor Sugiharto Hagus Tarno Karuniawan Puji Wicaksono Ryoko Hirata Satoshi Ito Tsuyoshi Kajisa Yasa Palaguna Umar