Types of Biogeochemical Cycles 物质循环的基本类型 Three major categories of biogeochemical cycling based on slowest-changing pool(=reservoir): 1.Water cycling水循环 2.Gaseous cycling of C,N,O,S气相型循环 3.Sedimentary cycling of S,P沉积型循环 1717 Types of Biogeochemical Cycles Types of Biogeochemical Cycles 物质循环的基本类型 物质循环的基本类型 Three major categories of biogeochemical cycling based on slowest-changing pool(=reservoir): 1. Water cycling 水循环 2. Gaseous cycling of C, N,O, S 气相型循环 3. Sedimentary cycling of S, P 沉积型循环