Abstract. Soil moisture predictions from land surface models are important in hydrological, ecological, and meteorological applications. In recent years, the availability of wide-area soil measurements has increased, but few studies have combined model-based with situ observations beyond point scale. Here we show that can markedly improve estimates Joint UK Land Environment Simulator (JULES) mo...

Field capacity (FC) is a fundamental parameter in soil and water engineering hydrologic modeling. Despite its relevance, the situ determination of this not standardized by indirect methods dubious. This study presents method calculation FC corresponding suction (hFC), using van Genuchten equation for retention pedotransfer function Ottoni Filho et al. (2016) FC. The methodology was applied to H...

To estimate the Cation Exchange Capacity (CEC), indirect manner used of Pedotransfer Functions (PTFs). CEC is one of the important soil fertility factors, and not measured directly because it is costly and time consuming. Thus, used from regression equations between easily and non-easily soil properties. The purpose of this research, is develop the PTFs for CEC, with use of easily available soi...

Saturated hydraulic conductivity (Ks) is an important soil characteristic that controls water moves through the soil. On other hand, its measurement difficult, time-consuming, and expensive; hence Pedotransfer Functions (PTFs) are commonly used for estimation. Despite significant development over years, PTFs showed poor performance in predicting Ks. Using Genetic Algorithm (GA), two hybrid Mach...