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ITS » Master Theses » Teknik Manajemen Pantai - S2
Posted by eny at 06/01/2007 13:35:10  •  10098 Views


INFLUENCE OF MANGROVE ZONE TO SEDIMENT TRANSPORT VELOCITY AND SHORE LINE CHANCES AT CURAH SAWO PROBOLINGGO

Author :
KRISTIARINI, ENDAH 




ABSTRAK

Kawasan mangrove mampu menahan energi gelombang datang sehingga dapat melindungi pantai dari hempasan gelombang. Disamping itu mangrove memiliki kemampuan memperbaiki tanah yang disebabkart oleh sistem parakaran yang berfungsi menahan gerakan air menahan kembalinya bahan organik dan lumpur dari sungai kelaut dan menguatkan garis-garis pantai. Penelitian pengaruh kawasan mangrove terhadap laju sedimen transpor dan perubahan garis pantai di Curah sawo Kabupaten Probolinggo bertujuan menghitung laju sedimen transpor dan perubahan garis pantai. Dari hasil perhitungan yang dilakukan diperoleh hasil bahwa penangkapan sedimen di daerah mangrove AQ rata-rala sebesar 633631 m3Th. Bila dibagi dengan areal lokasi studi seluas 1.300.000 m2 diperoleh nilai AQ sebesar 00000487 m3Th atau sama dengan 00487 cm3Th yang menunjukkan kisaran tinggi pengumpulan sedimen dikawasan mangrove Desa Curahsawo sebesar 0365 cm3Th. Dalam analisa perubahan garis pantai di Desa Curahsawo diperoleh hasil bahwa crosi atau mundurnya garis pantai yang terjadi dalam rata-rata per tahun apabila tanpa adanya mangrove sebesar - 9621 m dan sedimentasi atau majunya garis pantai yang terjadi sebesar 7533 m. dengan adanya mangrove erosi yang terjadi dalam rata-rata per tahun dapat diperlahankan menjadi - 0014 m dan sedimentasi yang terjadi 0011 m. Dengan demikian untuk mencegah terjadinya erosi atau mengembalikan kondisi pantai yang kritis cukup baik bila dilakukan penghijauan pantai dengan tanaman mangrove yang sesuai dengan kondisi dasar perairannya.


ABSTRACT

Mangrove area is able to restrain wave energy coming can protect the shore from breaker. Mean while also have ability to fix the ground which caused by the form of roots system. The research is to role the long shore and shore line changing due to the mangrove vegetation in local area Curah Sawo of Probolinggo. The result is the catching of sediment in mangrove area AQ average as amount as 633631 m3years. This is divided with the study location area as wide as 1.300.000 m2. Obtained AQ value as mount as 00000487 m3years or equal 00487 cm3years which indicate the high rate of sediment gathering in mangrove area Curahsawo village as amount as 0365 cmyears. The change of shore line in the area was obtained the erosion or degradation of shore line with mangrove as amount as - 9621 meters and sedimentation or the advance of shore line as amount as 7533 meters. The existence of mangrove erosion in average a year can be defended into - 0014 m and sedimentation into 0011 meters. Therefore to prevent erosion or to return the condition of critic shore it will be good idea for reboization of shore with mangrove plant and suitable to the condition of the watering base.



KeywordsMangrove ; Sediment transport ; Shore line changes
 
Subject:  Sedimentologi
Contributor
  1. Dr. Ir. M. Mustain, M.Sc.
    Ir. Hasan Ikhwani, M.Sc.
Date Create: 23/08/2002
Type: Text
Format: pdf ; 146 pages
Language: Indonesian
Identifier: ITS-Master-3100003017711
Collection ID: 3100003017711
Call Number: 551.302 Kri p


Source
Theses Shipping Engineering RT 551.302 Kri p, 2001

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