Rola, Agnes C.; Suminguit, Vel J.; Sumbalan, Antonio T. - Philippine Institute for Development Studies (PIDS), … - 2004
Local research in the Manupali watershed, with about 60% of its land area belonging to the upland municipality of Lantapan, Bukidnon, found that water quantity and quality declined due to soil erosion and domestic waste contamination. As population grows and agriculture becomes more integrated...