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IJSTR >> Volume 6 - Issue 7, July 2017 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Evaluation Of Land Damage Status For Biomassa Production In Loakulu Subdistrict Kutaikartanegara Regency Of East Kalimantan Province Indonesia

[Full Text]



Surya Darma, Wawan Kustiawan, Sigithardwinarto, Sumaryono



Parameter of Soil Damage, GIS, Biomass Production



The objective of the study was to identify the parameters of soil damage, so that the level of damage that occurs was known, as a decision-making material with an appropriate approach to the problem, so that the productivity of the land does not decrease, even increased as a cultivation area that has a function for biomass production. The first step is to determine the potential for indicative soil damage by overlaying with the GIS-based digital map, i.e. soil type map, slope, rainfall, land cover, then with the spatial and regional plan map. The results obtained 4 classes of potential indicative soil damage, namely low (1), medium (2), high (3) and very high (4). Observations were made at (3) and (4). Number of field observation points and soil samples respectively 4 and 2. Field verification found that an effective soil depth (solum thickness) at (3) was ≥90 cm, 25-40% slopes were used for agriculture, whereas (4) was <20 cm and ≥60% only secondary forest. The results of the evaluation found that 5 parameters exceeding the threshold, namely solum thickness (s), surface of rocks (b), permeability (p), soil acidity (a) and electrical conductivity (e). Based on the relative frequency score, the soil damage status is slightly damaged at (3) by limiting factor (a) or D.I-a, while at (4) moderately damaged by limiting factor (s), (b), (p) and (e) or D.II-s, b, p, e. Improvement actions in D.I-a are soil treatment, organic fertilizing (compost) and liming, whereas in D.II-s, b, p, e is difficult to repair due to natural factors.



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