EVALUASI LAJU INFILTRASI PADA BEBERAPA PENGGUNAAN LAHAN MENGGUNAKAN METODE INFILTRASI HORTON DI SUB DAS COBAN RONDO KECAMATAN PUJON KABUPATEN MALANG
ABSTRACT: The research was
done on October until November 2008 in Sub DAS Coban Rondo Pujon Kabupaten
Malang. The aim of the research was to
get information about infiltration rate at several land uses, to understand the
relationship between the infiltration constant and the factors that influence
infiltration process, and to know when infiltration method of Horton can be
used to estimate infiltration.The measurement of infiltration in Sub DAS Coban
Rondo used double ring infiltrometer with three treatments on eucalyptus land,
corn land, and empty land. The removal sample soil was performed to know soil
physical characteristic, and later to know the relationship between
infiltration constant and soil physical characteristic. The result of this
research indicated that at the beginning, infiltration value at eucalyptus land
was 13.200 mm/minute, while at corn land was 15.800 mm/minute and 15.133
mm/minute for empty land. The
relationship between infiltration constant and bulk density was the high value
of infiltration constant was followed by the low bulk density. The high infiltration constant was followed
by high space pore, water content, and organic matter. Based on the calculation using Infiltration
Method of Horton and infiltration in Sub DAS Coban Rondo with t-test there was
no obvious difference at level of 99% with the result that Infiltration Method
of Horton can be used to estimate infiltration process.
Keywords: infiltration, land
use, infiltration method of Horton
Penulis: Ruslan Wirosoedarmo,
Bambang Suharto, Wulan Ruhunnatiqah Hijriyati
Kode Jurnal: jppertaniandd090013
