Soil: Definition

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● Soil: Definition
● Soil Production
● Soil Production: inputs
● Soil Production: outputs
● Soil Thickness: Storage
● Factors of Soil Formation
● End of 10/6 and start of 10/13
● Processes of Soil Development
● Additions to soils
● Transformations
● Soil Horizons and Profiles
● Typical soil profile
● Cookport soil, Pennsylvania
● Soil classification = messy
● Soil classification = soil orders
● Soil types (more simply) – Aridisols
● Soil types – Oxisols
● Decomposing organic material from plants and animals mixes with accumulated soil minerals.
● Limits on soil development
● Rates of Soil Development
● Soil and the Life-Cycle of Civilizations

نوع زبان: انگلیسی حجم: 8.13 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 46 صفحه
سطح مطلب: نامشخص پسوند فایل: pptx
گروه موضوعی: زمان استخراج مطلب: 2019/05/17 04:34:10

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عبارات مهم استفاده شده در این مطلب

عبارات مهم استفاده شده در این مطلب

soil, ., formation, factor, horizon, material, rate, rock, weather, organism, topography, time,

توجه: این مطلب در تاریخ 2019/05/17 04:34:10 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

http://gis.ess.washington.edu/grg/courses/ess230/lectures/2_Soils2015.pptx

در صورتی که محتوای فایل ارائه شده با عنوان مطلب سازگار نبود یا مطلب مذکور خلاف قوانین کشور بود لطفا در بخش دیدگاه (در پایین صفحه) به ما اطلاع دهید تا بعد از بررسی در کوتاه ترین زمان نسبت به حدف با اصلاح آن اقدام نماییم. جهت جستجوی پاورپوینت های بیشتر بر روی اینجا کلیک کنید.

عبارات پرتکرار و مهم در این اسلاید عبارتند از: soil, ., formation, factor, horizon, material, rate, rock, weather, organism, topography, time,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

soils soils we know more about the movement of celestial bodies than about the soil underfoot. leonardo da vinci we continue our discussion of weathering by examining what happens to weathered products the production of soils ۲ soil definition solid earth material that has been altered by physical chemical and organic processes so that it can support rooted plant life. engineering definition anything that can be removed without blasting ۳ soil production a soil profile ۴ soil production inputs conversion of rock to soil soil is added from the bottom up unlike many other deposits and features of the natural world ۵ soil production outputs downslope movement of soil soil can then be removed from a slope through downslope movement driven by gravity and helped along by natural processes. ۶ soil thickness storage input ± output soil thickness or rock conversion ± soil transport thickness that is soil thickness reflects the balance between rates of soil production and rates of downslope soil movement. factors of soil formation what factors might influence the rates of soil formation ۸ climate organisms parental material topography time factors of soil formation climate organisms parental material topography time factors of soil formation wetter climates are going to result in more rapid soil formation and transfer of soils as well as transfer of material within a soil ۱ climate organisms parental material topography time factors of soil formation some obvious effects here of degradation but organisms can also aid soil development as earthworms do. they also add organic matter which can enrich soils and provide needed nutrients. ۱۱ climate organisms parental material topography time factors of soil formation soils are mostly composed of degraded bedrock so it makes sense that the chemistry of the bedrock is going to be important in determining soil characteristics. rock strength and fracture density will also control rates of soil formation ۱۲ factors of soil formation climate organisms parental material topography time topography will largely control where how soil moves. steep slopes will have more gravitational potential energy and result in more movement of soil off the slope hence thinner soils. but downslope in hollows and flat plains that soil can accumulation and form thicker deposits that do not get transported away. topography will also help control the local climate and accumulation of rainwater for example as well as organisms. ۱۳ climate temperature and precipitation indirect controls e.g. types of plants weathering rates the greater the rainfall amount the more rapid the rate of both weathering and erosion. factors of soil formation based on this map of precipitation rates is soil production likely to be higher in western or eastern washington ۱۴ organisms types of native vegetation weathering is dependent of plant growth plant and animal activity produces humic acids that are powerful weathering agents. acids derived from chemical breakdown of organic matter plants can physically as well as chemically break down rocks. plants stabilize soil profiles animals including humans tend to increase erosion. factors of soil formation parent material chemistry mineralogy grain size factors of soil formation topography ground slope elevation aspect north vs. south facing slopes factors of soil formation downslope transport of soil is a function of slope erosion rate f s steeper slopes erode faster. the steeper the surface slope the more likely any eroded material is to be transported out of the system. factors of soil formation soils on hillslopes reach an equilibrium thickness often about ۱m. soils on flat surfaces such as floodplains or plateaus tend to thicken through time due to weathering rates being greater than sediment transport rates. factors of soil formation time for development and destruction of soil profiles typical chemical reaction rates are slow  the longer a rock unit has been exposed the more likely it is to be weathered and the longer soil waits before transport the thicker it can become… factors of soil formation end of ۱ ۶ and start of ۱ ۱۳ geoclub ۱ in friendship and geology email essgeoclub@gmail.com facebook uw ess geoclub climate organisms parent material topography time factors of soil formation conversion of rock to soil downslope movement of soil processes of soil development combined effects of additions to ground surface chemical transformations vertical transfers removals from soil relative importance varies left off here ۲۴ additions to soils inputs from outside ecosystem atmospheric inputs precipitation dust deposition horizontal inputs floods tidal exchange erosion land water movement inputs from within ecosystem litterfall and root turnover transformations decomposition of organic matter breakdown to form soluble compounds that can be absorbed and leached away depends on input quantity location roots leaves environment temp precip humification to form complex organic matter weathering of rocks physical weathering fragmentation of rock freeze thaw drying wetting fire chemical weathering primary  secondary minerals parent material bedrock undergoes weathering to become regolith soil saprolite . regolith soil is a mixture of mineral and organic matter lacking any inherited rock structure. soil saprolite is weathered rock that retains remnant rock structure. saprolite saprolite soil horizons and profiles soil horizons over time soil layers differentiate into distinct ‘horizons.’ not deposited but zones of chemical action chemical reactions and formation of secondary minerals clays . leaching by infiltrating water elluviation deposition and accumulation of material leached from higher levels in the soil illuviation soil profile suite of horizons at a given locality typical soil profile cookport soil pennsylvania c horizon b horizon a horizon soil classification messy soil classification soil orders aridisols arid zone soils calcic horizons mollisols grassland soils thick a horizon alfisols ultisols and spodosols forest soils thick b horizon oxisols tropical soils quite oxidized histosols wetland soils gelisols polar soils andosols volcanic parent material vertisols swelling clays entisols weak a over c horizon inceptisols weak b horizon aridisols arid zone soils calcic horizons mollisols grassland soils thick a horizon alfisols ultisols and spodosols forest soils thick b horizon oxisols tropical …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: soil, ., formation, factor, horizon, material, rate, rock, weather, organism, topography, time,

این فایل پاورپوینت شامل 46 اسلاید و به زبان انگلیسی و حجم آن 8.13 مگا بایت است. نوع قالب فایل pptx بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/05/17 04:34:10 استخراج شده است.

http://gis.ess.washington.edu/grg/courses/ess230/lectures/2_Soils2015.pptx

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