Project leader: Gao Hongbei

Project source: Shaanxi Provincial Natural Science Basic Research Program

Project funding: 30,000 yuan

Research content:

(1) Analysis of soil hydrodynamic parameters for ditching and land reclamation

Measurement of soil saturated hydraulic conductivity for ditch construction and land construction、Basic parameters of soil water holding and conductivity such as unsaturated hydraulic conductivity, diffusivity and moisture characteristic curve，Comparative analysis with such property parameters of soil that has not been affected by the project

(2) Analysis of the formation mechanism and influencing factors of soil midflow dafabet loginin gully control and land creation

Select typical soil outflow areas for ditch control and land creation，To soil texture，Continuous positioning observation of soil layer structure and dynamic change characteristics of soil flow，And analyze the formation mechanism of soil midflow in ditch construction and land reclamation based on the hydrological and meteorological factors of the watershed。

(3) Simulation of outflow process in gully land construction soil

Use HYDRAUS and other soil moisture movement models to numerically simulate the outflow process in the soil，And based on this, predict the dynamic change characteristics and rules of soil flow。

Expected results:

(1) Reveal the mechanism of soil flow in farmland during ditching and land creation.

(2) Based on the existing dafabet.com mobiledynamic process model of soil moisture in loess channel small watershed，Combined with the meteorological and hydrological data of the study area of ​​this project，Soil moisture dynamic data

Carry out a model simulation of the runoff generation process in farmland soil in ditches.

(3) Based on the basin water balance model，Preliminary analysis of the direct impact and potential impact of ditch control and land reclamation projects on water resources distribution in the basin。

(4) Prepare a project research report，Published 2-3 academic papers。