ANALISIS KESESUAIAN LAHAN TERHADAP PENGEMBANGAN TANAMAN PORANG (Amarphopallus ancophillus) DI KECAMATAN LEWA KABUPATEN SUMBA TIMUR

Indrayani Rambu Apu (Universitas Kristen Wira Wacana Sumba)
Uska Peku Jawang (Universitas Kristen Wira Wacana Sumba)
Marten Umbu Nganji (Universitas Kristen Wira Wacana Sumba)

JTSL (Jurnal Tanah dan Sumberdaya Lahan)
Vol. 9 No. 1 (2022)

Lewa sub-district is one of the sub-districts in East Sumba Regency, which has dry land that can be maximized for the development of porang plants and development purposes; information on the potential of porang plantations is needed. This study aimed to determine the biophysical characteristics of the land and the land suitability class of porang plants. The analytical method used was the matching method by comparing the land characteristics and plant growth requirements and the overlay method. The matching results show that the land characteristics in Lewa Subdistrict are class S1 (Very suitable), covering an area of 26.220,209 ha and Class S2 (quite suitable), covering an area of 3.608,523 ha. Limiting factors in this area are water availability (OA) such as drainage, nutrient retention (nr) such as CEC and pH, and erosion hazards (eh) such as slope.