HUBUNGAN ANTARA SIFAT FISIK TANAH DENGAN KEMAMPUAN RESAPAN AIR PADA TANAH

Ifqi Bagus Dwirangga, - (2024) HUBUNGAN ANTARA SIFAT FISIK TANAH DENGAN KEMAMPUAN RESAPAN AIR PADA TANAH. S1 thesis, Universitas Pendidikan Indonesia.

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Abstract

Banjir adalah bencana yang sering terjadi di Indonesia, terutama di daerah perkotaan akibat perubahan fungsi lahan untuk aktivitas manusia. Dengan terbatasnya area resapan air, salah satu solusi untuk mencegah banjir adalah pengembangan teknologi resapan pada tanah yang memiliki daya serap tinggi. Penelitian ini bertujuan untuk menyelidiki hubungan antara sifat fisik tanah dan kemampuan resapan air, serta mengaitkan hasil uji permeabilitas di laboratorium dengan infiltrasi yang diukur di lapangan. Penelitian ini menggunakan pendekatan studi kasus dengan pengambilan sampel tanah melalui metode purposive sampling dari 11 lokasi di Sariwangi, Bandung Barat, Jawa Barat. Metode yang diterapkan adalah deskriptif kuantitatif, yang mencakup pengumpulan data mengenai sifat fisik tanah seperti persentase pasir, persentase lempung, berat isi, kadar air, batas cair, dan batas plastis, serta kemampuan resapan permeabilitas dan kapasitas infiltrasi. Data dianalisis secara statistik dengan menggunakan uji korelasi dan analisis regresi. Hasil analisis menunjukkan bahwa sampel 5, 6, dan 9 tergolong pasir berdegradasi baik, sedangkan sampel 11 juga berdegradasi baik namun mengandung lanau. Sampel 1 dan 3 termasuk pasir berdegradasi buruk dengan lanau, sedangkan sampel 2, 4, 8, dan 10 tergolong pasir berdegradasi buruk. Analisis statistik mengindikasikan bahwa berat isi, kadar air, dan batas plastis memiliki hubungan berbanding terbalik yang lemah, sementara persentase lempung dan batas cair menunjukkan hubungan berbanding lurus yang juga lemah. Di sisi lain, terdapat hubungan berbanding lurus yang kuat antara permeabilitas dan infiltrasi. Flooding is a recurrent disaster in Indonesia, particularly in urban regions where land use has been altered for human activities. To mitigate flooding, especially given the limited water catchment areas, implementing infiltration technology on soils with high absorption capacity is a viable preventive measure. This study investigates the correlation between the physical properties of soil and its water infiltration capacity, alongside the relationship between laboratory permeability tests and field infiltration assessments. Conducted as a case study, soil samples were collected through purposive sampling from 11 locations in Sariwangi, West Bandung, West Java, Indonesia. A quantitative descriptive approach was employed to gather data on various soil physical properties, including sand and clay percentages, bulk density, moisture content, liquid limit, plastic limit, permeability, and infiltration capacity. Statistical analyses, including correlation tests and regression analysis, were performed on the data. The findings reveal that samples 5, 6, and 9 are classified as well-degraded sand, while sample 11 is well-degraded sand with silt. Samples 1 and 3 are categorized as poorly degraded sand with silt, and samples 2, 4, 8, and 10 are identified as poorly degraded sand. The statistical analysis indicates an inverse relationship with weak correlation levels for bulk density, moisture content, and plastic limit, while clay percentage and liquid limit show a direct relationship with a weak correlation. In contrast, the relationship between permeabilisty and infiltration is directly proportional and exhibits a strong correlation.

Item Type:	Thesis (S1)
Additional Information:	https://scholar.google.com/citations?view_op=new_profile&hl=en ID SINTA Dosen Pembimbing: Mardiani: 0002108104
Uncontrolled Keywords:	berat kering, infiltrasi, kadar air, pasir, permeabilitas, hubungan. dry density, infiltration, water content, sand, permeability, relationship.
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography L Education > L Education (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil
Depositing User:	Ifqi Bagus Dwirangga
Date Deposited:	10 Oct 2024 20:06
Last Modified:	10 Oct 2024 20:06
URI:	http://repository.upi.edu/id/eprint/127335

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