Taking Lanjiabao,Shaanxi as an example,the land renovation methods for areas with severe drought,water loss and soil erosion were discussed from the planning and design of land leveling,irrigation and drainage enginee...Taking Lanjiabao,Shaanxi as an example,the land renovation methods for areas with severe drought,water loss and soil erosion were discussed from the planning and design of land leveling,irrigation and drainage engineering,field road engineering,soil and water conservation and other aspects to fundamentally improve the production conditions of local agriculture,thereby effectively inhibiting soil erosion,reducing the impact of wind and sand,greatly enhancing the ability to withstand natural disasters,improving the natural productivity of farmland,and enhancing adjustment capacity. The planning and design of this case project can provide reference for land renovation activities in similar areas.展开更多
This paper discussed current situations of researches about the isolation remediation technology " soil barrier and landfill technology" and " physical isolation remediation technology" for heavy m...This paper discussed current situations of researches about the isolation remediation technology " soil barrier and landfill technology" and " physical isolation remediation technology" for heavy metal contaminated soil in mining areas.In view of defects of current technologies,it introduced a new isolation remediation technology,of which the new isolation materials were mixed by slaked lime,soil,find sand,and clay mineral in certain proportion.The new isolation remediation technology is expected to realize isolation remediation of heavy metal combined pollution of soil through chemical passivation of slaked lime and physical adsorption function of clay minerals or activated carbons.展开更多
This article mainly covers the agricultural technology and traditional technology of plastic film mulching in China through the contrast and analysis. The mechanism and effect of plastic mulching technology is expound...This article mainly covers the agricultural technology and traditional technology of plastic film mulching in China through the contrast and analysis. The mechanism and effect of plastic mulching technology is expounded,and the main use,positive role and development prospects of the technology in agricultural production,as well as the technology of agricultural soil conservation are introduced. In addition,existing problems and countermeasures are put forward to promote the development of agriculture in arid areas.展开更多
文摘Taking Lanjiabao,Shaanxi as an example,the land renovation methods for areas with severe drought,water loss and soil erosion were discussed from the planning and design of land leveling,irrigation and drainage engineering,field road engineering,soil and water conservation and other aspects to fundamentally improve the production conditions of local agriculture,thereby effectively inhibiting soil erosion,reducing the impact of wind and sand,greatly enhancing the ability to withstand natural disasters,improving the natural productivity of farmland,and enhancing adjustment capacity. The planning and design of this case project can provide reference for land renovation activities in similar areas.
基金Supported by Scientific Research Project of Shaanxi Province Land Engineering Construction Group(DJNY2017-13)
文摘This paper discussed current situations of researches about the isolation remediation technology " soil barrier and landfill technology" and " physical isolation remediation technology" for heavy metal contaminated soil in mining areas.In view of defects of current technologies,it introduced a new isolation remediation technology,of which the new isolation materials were mixed by slaked lime,soil,find sand,and clay mineral in certain proportion.The new isolation remediation technology is expected to realize isolation remediation of heavy metal combined pollution of soil through chemical passivation of slaked lime and physical adsorption function of clay minerals or activated carbons.
文摘This article mainly covers the agricultural technology and traditional technology of plastic film mulching in China through the contrast and analysis. The mechanism and effect of plastic mulching technology is expounded,and the main use,positive role and development prospects of the technology in agricultural production,as well as the technology of agricultural soil conservation are introduced. In addition,existing problems and countermeasures are put forward to promote the development of agriculture in arid areas.
