水土保持英文课件6 Soil and Water Conservation-Wang Min.ppt,Soil and Water Conservation Wang Min (王敏) (School of Water Engineering and Building) Soil Erosion What’s soil erosion? Erosion is the process of detachment and transport of soil particles by
Trees planted along the edge of a field to prevent wind erosion WINDBREAK Trees planted along the edge of a field to prevent wind erosion Trees planted along the edge of a field to prevent wind erosion WINDBREAK Trees planted along the edge of a field to prevent wind erosion Retaining walls ...
Causes: Wind Erosion: Bare dry fields will lose top soil as the wind travels over the field and picks up soil Water Erosion: Rain water builds up on bare fields and with nothing to hold it on place the water will eventually runoff carrying the nutrient rich top soil with it Why does e...
soilwatererosionconservationwang水土 SoilandWaterConservation WangMin(王敏) (SchoolofWaterEngineeringandBuilding) SoilErosion What’ssoilerosion? Erosionistheprocessofdetachmentand transportofsoilparticlesbyerosiveagents (Ellison,1944). Erosionisanaturalgeologicprocess. WATEREROSION WINDEROSION Wind Erosion Water ...
soil pollution-land pollution-土壤污染 SoilPollution Outline:•1.Whatissoilpollution•2.Organic(thosethatcontaincarbon)contaminants •3.Inorganic(thosethatdon'tcontaincarbon)contaminants •4.Effectsandcontrolstrategies 1.Whatissoilpollution?Alloftheseactivitieswillleadtosoilcontamination.1.Whatissoilpollution...
Environmental Science-soil Soil XiaoxiuLun,PanyueZhangCollegeofEnvironmentalScienceandEngineeringBeijingForestryUniversity SoilandItsUses ChapterOutline: SoilFormationSoilProperties Profile（剖面）Horizons（土层） SoilErosionSoilConservation TillagePractices（耕地）SoilandLand Land...
Fig.2 Spatial pattern of wind soil erosion risk in Yulin city(a) and the map of landform in Yulin City(b) 图2 榆林市土壤风蚀危险度(a)和地形地貌分布(b) Full size|PPT slide3 结果及讨论 榆林市位于内蒙古高原、黄土高原、毛乌素沙地过度地带,地处内陆,其气温、降水、风况与大陆性季风环流有密切...
(600 important) Toxicity to animals Pollution of groundwater Understand half-lives Binding to soils (K oc ) Understand fate and transport in the Environment SEDIMENTS AS POLLUTANTS Eroded soil is a serious pollutant: (Physically and chemicals adsorbed) Control of erosion ...
Organic Farming Prohibits synthetic substances, including inorganic fertilizers and pesticides Soil nutrients provided by manure, compost, legumes, organic fertilizers Crop rotations used to control weeds, prevent erosion, and improve soil quality
Sand Control Fundamentals & Design AdvertisementsChapter 2: Weathering & Soil. Chapter 2 Weathering & Soil Weathering, Soil, and Erosion I will only call on 3 of you to share Weathering Processes Formation of Soils By Diana L. Duckworth Rustburg High School Campbell County, VA. ...