PENGARUH PERUBAHAN TATA GUNA LAHAN TERHADAP KUALITAS AIR PADA BEBERAPA SUNGAI BESAR DI PROVINSI BENGKULU

Gunawan , Gusta (2014) PENGARUH PERUBAHAN TATA GUNA LAHAN TERHADAP KUALITAS AIR PADA BEBERAPA SUNGAI BESAR DI PROVINSI BENGKULU. Inersia Jurnal Teknik SIpil, 2 (1). pp. 30-36. ISSN 2086-9045

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Abstract

BengkLlu Prwince is one of the provinces that most of its tand is stillforest. Changes in land use in some watersheds, the forests into plantatiow has affected iurface water qiality in somi major rivers. Based on the results of monitoring conducted by i'he Erwirinment Asriry ind Bengkulu" prwinces conparedwith the PP No.82 year 2001, some piisical and chemicat properties of thi raw water has feen classified in class wo aid three and even stome that have been included in the altempts to we the decreased forest in 4e from forest into plantations year to year, fourth grade. If continues to do so will continue to sudace iater qualiry has this study aimed to determine the relationship between the decrease of area with increasing. concentrations of TDS. This reseqrch was conduited at several iajor rivers province of Bengkulu. Approach ta tie calaiqtion of changes in land use with ;h;;";;; in water q-ualltt is (one by classfying the tand into several land developed Data processing croups: no*iiy Tornt land, dry lqnd, iettands qnd was done using *utiipit" regrLision equations and.the calcalation process corried out with tlle variable was / brest lid 9f computer program Spss windows version 15. The independent land, dry land, wetlands aid lindwoke uj and the dependent vorioble k the TDS. Todetermine the relationship offorest area in a ulatershed with'an increasei concentration of TDS, the ronk re-sressiol analysis- Oosla in the results of significance test jointly Qest fl obtained the result rha the change of forest land, dy, w-et snd woke up a iignyi"o"t influ*ii on increasing the cencentrotion of TDS. Based on the results of tests of signifiiancelting paiatlyforest land usichanges, wet and dry o,f f2i. Forest areq with the concentration equation is obtained TDS TDS = 0.275 + have a significant effect o4 increasing tie with the TDS concentration is a forest "on"enrroioi 0.It14 -0.ZSI3 ias Ares. The conclusion is the relationshiparea otf non-linear equation negotive ranking. Each reduction of one unit offorest areqwill cause an increase in TDS conceniuion of ile unit.

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