<![CDATA[Title : Hydrology of Land Site: The Changing of Land Cover and Water Absorption Level. The movement of water to the soil is called infiltration process. The process can be understood by infiltration model which developed by Phillips in 1960’s (I = st-0.5 + Kt). Phillips’s models can be explained as a function of time and are determined by soil sorptivity and hydraulic conductivity. Study of sorptivity and conductivity parameters on Teak land cover are to get more information about cumulative infiltration that accure during several times and coefficient of water absorption reference (Zref) in many kinds of land cover. Zref is the real soil potential for water moving and determines the soil macropores and reflects the water absorption ability. Coefficient of water absorption reference (Zref) with coefficient of water absorption (Z) from RAINS model (I = (Z Cos α/(1-λ)) P(1-λ)) can be used to estimate land cover index by the ratio of coefficient of water absorption and coefficient of water absorption reference, indirectly, show the function of land cover on certain area. The changing of land cover from Teak to agroforestry Teak+Soybean and monoculture system (Soybean and Maize) increase land cover index as big as 15% and 70%, respectively. On the other hand, the changing to agroforestry Teak+Maize decrease land cover index as big as 3.4%. The estimation of coefficient of water absorption reflects the function of land cover as the main point to get the ability of water soil movement. Keywords: Hydrology, Land Cover, Water Absorption Level]]>
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