ESPM 131 Study Guide - Midterm Guide: Water Potential, Humus, Silt

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Zone deep subsurface biosphere : depth of portion of profile above hzo table lire limited by zone of active microbial expansion max temps. Slimes : substrate lilhiotophic micro ecosystem , live in avid - filled of rock pores sand : 2- 5mm. 002mm smallest particle negative charge typical of most soil particles humus : organic matter traditional term. Som : suit matter org . binds minerals holds hp aggreq , macro pores biggest pores me so > micro. > ultra micro mid - site pores pores (3) smallest crypto pores hierarchy of forces : pores inorganic st bio processes that bind small. By (pdysau , hyphae roots ) micro aerophilic lines lower oz. Ftmptkot of solid phase w/ hzo int . solute potential : int of solutes. Compatible solutes: synthed to lower its own y specific ion toxicity : toxicity resultingfrom can salts. D in process rates in resp . to temp btw.