Firman, Hidayat (2020) "The influence of Land Use Change toward Hydrological Aspect at Upper Site " Mahat Watershed (Korespondensi). Psycho Social, International Journal of Psychosocial Rehabilitation.
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Abstract
The Impact of land-use change not only give some benefit to community but also can cause problem, namely: erosion, sedimentation, flooding and other. Related with that case the research will be taken. The objective is, to analisys influence of land use change to hidrological aspects. at Mahat Hulu watershed, located in the Lima Puluh kota district that 15 years old (1995-2010) deforestation has taken significantly. In 1995 Watershed has Forest area approximarely 50.9% and in 2010 decrease into 28% or from 14523 ha (1995) decrease to 7981 ha (2010) but mix garden increased from 17.1% (1995) to 43.8% (2010) or 4889 ha (1995) to 12508 ha (2010), the influence of land use changes on the hydrological aspects such as coefficient of annual and seasonal runoff, and fluctuations. The method used quantitative and multiple regression test. Result of analysis are deforestation will increases coefficient run off, and fluctuations discharged. Coefficient runoff from 20% in the 1999-2002 to 24% in 2007-2010 and fluctuation of discharged (KRS) also increased from 2.4-5.5 (1999- 2002) to 5.9-10.7 (2007-2010) indicating DAS is critics. Results of multiple regression test showed a close correlation between the variables (0.9) the formula is C (%) = 975 - 11.2 htn - 15.3 kbn cpr - 10.9 smk blkr + 0.43 tgln dan R-Sq = 42.4%, for the stepwise regression test showed that forest area influence to run off. It can be showed from the equation is CRO = 31.5 - 0.370 htn, , R-Sq = 5.3%. Keywords Hydrology, erosion, sedimentation, runoff , fluctuations
| Item Type: | Other |
|---|---|
| Subjects: | B Philosophy. Psychology. Religion > Ilmu Kehutanan B Philosophy. Psychology. Religion > Fakultas Kehutanan > Ilmu Kehutanan Universitas Muhammadiyah Sumatera Barat > Fakultas Kehutanan > Ilmu Kehutanan |
| Divisions: | Library of Congress Subject Areas > B Philosophy. Psychology. Religion > Ilmu Kehutanan Library of Congress Subject Areas > B Philosophy. Psychology. Religion > Fakultas Kehutanan > Ilmu Kehutanan Fakultas Kehutanan > Ilmu Kehutanan |
| Depositing User: | Unnamed user with email repo@umsb.ac.id |
| Date Deposited: | 04 May 2023 08:21 |
| Last Modified: | 04 May 2023 08:21 |
| URI: | http://eprints.umsb.ac.id/id/eprint/1853 |
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