CARBON AGROFORESTRY

Problem analysis. Yagasu analysis on data series from Local Climate Institute in Bandung showed air temperature, air humidity, precipitation, length of sun radiation and wind speed in West Java have significantly changed. Annual air temperature increases 0,01⁰C or 0,35⁰C during the last 35 years. Average length of sun radiation increases 0,27% yr^-1 or 9,45% yr^-1 during the last 35 years. Average precipitation decreases 1.85 mm per year, but the extreme rain frequently occurs during last 8 years. Average evaporation increases 0,01 Ep mm or 0,35 Ep mm during the last 30 years. In contrast, annual air humidity decreases 0,21% yr^-1 and air pressure also decrease 0,01 P mbar per year.

Combined climate change factors and land-use change/deforestation) created impacts on the fragility of watershed ecosystem, flora/fauna, and human life. This condition affected serious problems on: (1) frequent floods and land erosion during rainy season; (2) loss of natural resources supporting subsistence of local agriculture; (3) marginalization and displacement of population, food insecurity and loss of job opportunities; (4) stress over water resources (over capacity during rainy season and drought during dry season causing the loss of clean water for 23 million inhabitants; (5) unequal redistribution of income transforming public goods into single-use private resources – intensive open-land agriculture practices mostly for vegetables. Annual floods occur frequently in several areas of the upper-, middle- and lower river basin. The fatal impacts when land erosion and annual floods hit the settlement areas in both watersheds resulted in loss over 123 human-life, destroyed 14.455 houses and caused 179.659 local people homeless and jobless during last 3 years (source: BNPB, 2019).