https://padlet.com/kamste5100/KamyaSoilSience Soil, Flowers, Environment en-us 2017-03-23 15:50:22 UTC 2017-05-31 18:06:11 UTC hello@padlet.com kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/162185454 Enzymes (exclusive of live cells) that are (i) excreted by live cells during growth and division; (ii) attached to cell debris and dead cells; (iii) leaked into soil solution from extant or lyzed cells but whose original functional location was on or within the cell. Synonymous with exoenzymes.]]> 2017-03-23 16:07:25 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/162185454 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164651298 The theoretical limit or lowest level toward which erosion of the Earth's surface constantly progresses but seldom, if ever, reaches; especially the level below which a stream cannot erode its bed. The general or ultimate base level for the land surface is sea level, but temporary base levels may exist locally.]]> 2017-04-04 15:47:26 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164651298 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164651835 The sum of exchangeable bases plus total soil acidity at a specific pH, values, usually 7.0 or 8.0. When acidity is expressed as salt extractable acidity, the cation exchange capacity is called the effective cation exchange capacity (ECEC) because this is considered to be the CEC of the exchanger at the native pH value. It is usually expressed in centimoles of charge per kilogram of exchanger (cmol_ckg^-1) or millimoles of charge per kilogram of exchanger. See also acidity, total.]]> 2017-04-04 15:48:48 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164651835 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164995280 A random movement of ions or molecules due to thermal agitation which tends to move because of their chemical activity gradient from areas of higher to lower concentration.]]> 2017-04-05 19:50:50 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164995280 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164995648 Mineral soils that have no distinct subsurface diagnostic horizons within 1 m of the soil surface. (An order in the U.S. system of soil taxonomy.)]]> 2017-04-05 19:52:51 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164995648 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164995944 In soil classification one of the categories intermediate between the subgroup and the soil series. Families provide groupings of soils with ranges in texture, mineralogy, temperature, and thickness. See also classification, soil.]]> 2017-04-05 19:54:47 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164995944 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/164996404 One of the categories in the system of soil classification that has been used in the USA for many years. Great groups place soils according to soil moisture and temperature, base saturation status, and expression of horizons. See also classification, soil.]]> 2017-04-05 19:57:22 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/164996404 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/165706124 A suborder of the intrazonal soil order, consisting of saline and sodic soils formed under imperfect drainage in arid regions and including the great soil groups Solonchak or Saline soils, Solonetz soils, and Soloth soils. (Not used in current U.S. system of soil taxonomy.)]]> 2017-04-10 15:47:04 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/165706124 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/168152419  Rock formed from the cooling and solidification of magma, and that has not been changed appreciably by weathering since its formation. See also metamorphic rock.]]> 2017-04-25 16:00:04 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/168152419 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/168154235

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]]> 2017-04-25 16:06:02 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/168154235 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169462038 Planar voids that traverse the soil material in some fairly regular pattern, such as parallel or subparallel sets.]]> 2017-05-02 15:45:13 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169462038 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169463441 Energy due to motion and is proportional to the velocity squared.]]> 2017-05-02 15:48:49 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169463441 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169464190 Movement of water molecules at differing velocities but in parallel and sliding over one another without mixing.]]> 2017-05-02 15:50:43 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169464190 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169464695 The excreta of animals, with or without an admixture of bedding or litter, fresh or at various stages of further decomposition or composting. In some countries may denote any fertilizer material.]]> 2017-05-02 15:52:11 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169464695 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169465236  A mineral soil horizon that satisfied the requirements of an argillic horizon, but that also has prismatic, columnar, or blocky structure and a subhorizon having >15% saturation with exchangeable Na⁺.]]> 2017-05-02 15:53:50 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169465236 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169465407 A cutan composed of a concentration of organic matter.]]> 2017-05-02 15:54:18 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169465407 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169465945 The unconsolidated and more or less chemically weathered mineral or organic matter from which the solum of soils is developed by pedogenic processes.

]]> 2017-05-02 15:55:54 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169465945 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169466150 The change in quantity sorbed with change in quantity in solution. It is determined from the slope of the plot of concentration in solution vs. the quantity sorbed.]]> 2017-05-02 15:56:33 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169466150 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169466653 The ratio, at a given temperature, of the water vapor pressure to the saturated water vapor pressure; used as a measure of water potential by meteorologists.]]> 2017-05-02 15:57:50 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169466653 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169467254 A nonsodic soil containing sufficient soluble salt to adversely affect the growth of most crop plants. The lower limit of saturation extract electrical conductivity of such soils is conventionally set at 4 dS m^-1(at 25 °C). Actually, sensitive plants are affected at half this salinity and highly tolerant ones at about twice this salinity.]]> 2017-05-02 15:59:24 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169467254 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169467676 The load per unit area at which an unconfined cylindrical specimen will fail in a simple tension test.]]> 2017-05-02 16:00:43 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169467676 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169468018 A soil moisture regime that is neither dry for as long as 90 cumulative days nor for as long as 60 consecutive days in the 90 days following the summer solstice at periods when the soil temperature at 50 cm below the surface is above 5°C.]]> 2017-05-02 16:01:47 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169468018 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169468285 The aerated region of soil above the permanent water table.]]> 2017-05-02 16:02:29 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169468285 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169468584 Land not suitable for, or capable of, producing materials or services of value. See also miscellaneous areas.]]> 2017-05-02 16:03:13 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169468584 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169468853 A compound foreign to biological systems. Often refers to human-made compounds that are resistant or recalcitrant to biodegradation and/or decomposition.]]> 2017-05-02 16:03:51 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169468853 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169469164 A graphical representation of nutrient application rate or availability versus crop yield or nutrient uptake.]]> 2017-05-02 16:04:38 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169469164 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169469385 So-called opportunistic organisms found in soils in large numbers immediately following addition of a readily decomposable organic substrate. Synonymous with copiotrophs.

]]> 2017-05-02 16:05:14 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169469385 kamste5100 https://padlet.com/kamste5100/KamyaSoilSience/wish/169483166 2017-05-02 16:49:34 UTC https://padlet.com/kamste5100/KamyaSoilSience/wish/169483166