Soil Surface Heat Flux in the Punica granatum-Triticum aestivum Intercropping System Estimation of the soil thermal conductivity and heat flux in near surface layer from soil emperature Seasonal differences of energy fluxes among crop and grass ecosystems in semiarid region of southern Ningxia Soil Heat Flux Measurement Based on Heat Pulse Method Soil heat and response of vegetation growth in the loess hilly and gully region: a case study of Yangou Catchment Research on characteristics and relationship of soil heat and moisture in summer on alpine grassland in Yellow River source region