Land capability evaluation for land use recommendation in Lawo watershed

Land capability land use erosion Lawo watershed

Authors

  • Mahendra Harjianto
    harjiantomahendra@gmail.com
    Program Pasca Sarjana Program Studi Ilmu Pengelolaan DAS Institut Pertanian Bogor (IPB), Indonesia
  • Naik Sinukaban Departemen Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Institut Pertanian Bogor (IPB), Indonesia
  • Suria Darma Tarigan Departemen Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Institut Pertanian Bogor (IPB), Indonesia
  • Oteng Haridjaja Departemen Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Institut Pertanian Bogor (IPB), Indonesia

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The changes of forest uses into agricultural land is a serious problem in Lawo watershed, South Sulawesi.
Agricultural practices without implementing soil conservation and adequate agro-technology has caused high level
of soil erosion and low land productivity. Management in Lawo watershed must be done with integrated soil and
water conservation in order to increase agricultural production. This effort can be done with land capability
evaluation. The purpose of this study is to evaluate the land capability of Lawo watershed using land capability
category for data analysis. The results showed that Lawo watershed is dominated by land capability of class III with
erosion (middle) as the dominant limiting factor which covers about 17,476.42 ha (49.68%). In addition, the class
of land capability is followed by class IV with the slope (moderately steep) as the limiting factor and erodibility of
soil (middle) covering about 10,059.8 ha (28.6%), land capability of class VI with slope (Steep) as the limiting factor
with 7,638.32 ha (21.72%) coverage area. Land with class III can be recommended for dryland farming with
adequate application of agro-technology, and water and soil conservation. While class IV and VI are not
recommended for agricultural activities but for private forest or plantation forest.