PRADANA, INDRA (2013) KAJIAN POTENSI INFILTRASI PADA VARIASI JARAK DARI GARIS PANTAI DI DESA PLOSO KECAMATAN PACITAN KABUPATEN PACITAN PROVINSI JAWA TIMUR. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
Lahan pantai yang didominasi oleh fraksi pasir mempunyai kemampuan
menyimpan air yang sangat kecil, air merupakan masalah utama pada lahan
tersebut. Tata Air perlu mempertimbangkan adanya usaha konservasi air. Salah
satu usaha konservasi air adalah pengelolaan air permukaan dengan cara
meningkatkan kapasitas infiltrasi. Tujuan dari penelitian ini untuk mengkaji
potensi infiltrasi air pada variasi jarak dari garis pantai, pada jarak 500, 1000, dan
1500 meter dari garis pantai. Penelitian ini dilakukan di Desa Ploso Kecamatan
Pacitan Kabupaten Pacitan Jawa Timur. Penelitian menggunakan metode survey
dan purposif. Penentuan lokasi pengambilan sampel berdasarkan variasi jarak dari
garis pantai. Parameter penelitian meliputi porositas, permeabilitas, tekstur tanah,
dan karakteristik lengas (pF1; pF2; pF2,54; pF4,2). Dari hasil penelitian dapat
disimpulkan bahwa: (1) Potensi infiltrasi pada jarak 500 m dan 1000 m lebih
besar dibandingkan jarak 1500 m, (2) Sifat fisik pada jarak 1500 m dari garis
pantai lebih baik dibandingkan jarak 500 m dan 1000 m baik dari tekstur tanah,
kandungan bahan organik, distribusi ukuran pori, pori drainase, pori air tersedia,
dan permeabilitas tanah, (3) Penggunaan lahan dan pengolahan tanah pada
masing-masing variasi jarak berpengaruh terhadap beberapa sifat fisik tanah
sehingga mempengaruhi juga terhadap laju infiltrasi tanah.
Kata kunci: Infiltrasi, Sifat fisik, Lahan pasir pantai.
ABSTRACT
The coastal land dominated by sand fraction has less capability to hold
water, therefore water is the main problem in this area. Water management needs
to consider the water conservation efforts. One of the water conservation efforts is
to manage the surface water by improving infiltration capacity. The objective of
this research was to study the infiltration potency at distance variation of 500 m,
1000 m, and 1500 m from coastline. This research was conducted in Ploso
village, Pacitan sub district, East Java province. This research used survey and
purposive methods. The sampling location was based on distance variation from
coastline. The parameters to be observed were porosity, permeability, soil texture
and soil moisture characteristic (pF 1; pF 2; pF 2,54; pF 4,2). The result showed
that: (1) the infiltration rate potency at 500 m and 1000 m distances were higher
than the potency infiltration at 1500 m distance, (2) Some physical properties
such as soil texture, organic matters, pore size distribution, pore drainage, water
pore available, and permeability at 1500 m distance were better than the
properties at 500 m and 1000 m distance from coastline, (3) Land use and soil
tillage at each distance variation affected on some soil properties and in turn it
also affected on infiltration.
Keywords: Infiltration, Physical properties, Coastal land.
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | S Agriculture > S Agriculture (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eny Suparny |
| Date Deposited: | 11 Aug 2016 07:34 |
| Last Modified: | 11 Aug 2016 07:34 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/5127 |
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