Land Use Effects on Soil Erosion in the Lowland Humid Tropics of Papua New Guinea

  • David Lopez Cornelio
  • Rajashekhar Rao BK
Keywords: land use changes, agricultural systems, soil erosion, soil degradation, tropical soils

Abstract

A comparative study of the effect of 3 main types of land use (systems) on soil erosion levels was carried out in a traditionally farmed lowland forested region of Morobe Province, Papua New Guinea.  Nine erosion plots were
built at 3 sites at almost the same altitudinal level, area corrections were done to eliminate the effect of varying
slopes. Volumes of runoff, sediments concentration, and soil main nutrients collected within the plots were measured on a weekly basis. The parameters measured were closely depended on rainfall amounts along  the time.  Significant differences were found among them, explained mainly by land cover types and their soil particularities such as infiltration rates, bulk density, and texture.  Even though forest and grassland systems proved to be more effective in controlling soil losses, their areas were rapidly been converted into croplands, raising concerns for the sustainability and improvement of land use planning in the region.

 

Author Biographies

David Lopez Cornelio

Department of Forestry, Papua New Guinea University of Technology, Lae-411, Morobe Province, Papua New Guinea

Rajashekhar Rao BK
Department of Agriculture, Papua New Guinea University of Technology, Lae-411, Morobe Province, Papua New Guinea
How to Cite
Cornelio, D. L., & BK, R. R. (1). Land Use Effects on Soil Erosion in the Lowland Humid Tropics of Papua New Guinea. Jurnal Manajemen Hutan Tropika, 17(1), 17-23. Retrieved from http://journal.ipb.ac.id/index.php/jmht/article/view/3262
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Articles