The Construction And Application Of Without Material River Hydrological Model In Kunlun Sabina Chinensis Nature Reserve

Xinjiang is in the arid and semi arid areas, precipitation scarce and evaporationstrong, spatio-temporal distributing inhomogenous, monitoring cost is higher, and for mostof the Xinjiang area belongs to economic less-developed areas, thus increasing thedifficulty of hydrological monitoring, makes some parts of Xinjiang area become intohydrological monitoring blank area.It pose a significant obstacle to the reasonabledevelopment and use of the water resource,so the problem of water resources has becomethe key factor of restricting Xinjiang economy progress. This paper, based on the problemsof water resources in Xinjiang, reduce the testing data of the actual utilization.Example forthe Kunlun Sabina Chinensis nature conservation, based on the DEM and remote sensingimages (MODIS image), combining ArcGIS9.1, ERDAS8.6and ENVI4.5,select theappropriate hydrological model, the final simulated study area in2010days in the year ofsurface runoff.Using the EOS/MODIS8synthetic data of snow cover monitoring can effectivelyreduce the impact of clouds on remote sensing images, EOS/MODIS detectors with hightemporal resolution, high spectral bands on the planet uninterrupted observation of snowcover on the ground glacierbe changes in the implementation of effective monitoring.For arid and semi-arid regions, evaporation is an important part of the water balance,so the calculation the evaporation of the region, the impact factors of the study evaporationcan take measures to reduce the evaporation of invalid, the protection of water resources toprovide the basis. With the continuous development of remote sensing technology, the useof remote sensing computing evaporation has made considerable progress. Becauserelative to the traditional method of Hydrometeorology, remote sensing method is spatiallycontinuous and dynamic changes in the time characteristics of multi-spectral informationof remote sensing data can provide closely related to the parameters of the surface energybalance and land cover conditions. In this paper, based on the evapotranspiration of theenergy balance equation on the basis of the inversion has been the study area,evapotranspiration. Estimates better,that can provides a theoretical basis and methods forthe study area.In the model and design process, comprehensive consideration of the natural andgeographical environment of the study area, distributed snowmelt runoff model such as PeiHuan in2008calculated based on the study area, Nei Tizi that Puhe2010years of runoff.Snowmelt module is mainly on account of the different vegetation cover on snowmeltimpact in the coverage area of vegetation and no vegetation coverage area of snow meltingmodel. The model consists of three modules of distributed snowmelt, distributed runoff anddistributed convergence. That can be found through the simulation of surface runoff:comparison with the measured runoff data, the model simulation is better. The averageabsolute error of the model to simulate flow is2.482, the average relative error is17.344%.