Kajian Kapasitas Infiltrasi Dan Sifat Fisik Tanah Pada Ruang Terbuka Hijau (Rth) Di Kota Yogyakarta
Rifky Faisal Achmad, Dr. Tjahyo Nugroho Adji, S.Si., M.Sc. Tech
2023 | Skripsi | GEOGRAFI DAN ILMU LINGKUNGAN
Green Open Space (RTH) is an important component for
urban areas. Green open space has various functions including socio-cultural,
aesthetic, urban physical, ecological, and economic values. In addition, green
open space can also be useful for reducing puddles with infiltration processes.
Even though it has an important function, green open space often becomes a
victim due to land conversion in urban areas. The availability of green open
space in the city of Yogyakarta continues to decline from around 33% in 2000 to
32% in 2013%. Infiltration is the process of absorbing water into the soil.
Infiltration is influenced by several factors including soil physical
properties, rainfall, vegetation, initial water content, and fertilization. The
determination of green open space is carried out by directly using image
delineation and field validation. The green open space studied included green
open space for yards, open green open space for riverbanks, and open green open
space for cemeteries. A quota sampling was carried out from the entire green
open space to determine measurements and sampling in each green open space.
Infiltration capacity was calculated using the Horton method. Other variables
that are measured and recorded include porosity, soil texture, permeability,
and vegetation. The area of ??green open space for yards, riverbanks and
cemeteries is 525.78 hectares or 16.18% of the area of ??Yogyakarta City. This
area is an open green space that can absorb water with a validation result of
88.5%. In addition, the distribution of green open space (yards, riverbanks and
cemeteries) in the city of Yogyakarta is mostly located on the outskirts of the
area. The value of infiltration capacity from the largest respectively is the
green open space for cemeteries, green open space for yards, and green open
space for riverbanks. Variables that affect the value of infiltration capacity
are permeability, soil texture, and vegetation, while soil porosity has no
effect.
Kata Kunci : Infiltrasi, Kota Yogyakarta, Ruang Terbuka Hijau,Infiltration, Yogyakarta City, Green Open Space