第三張作業

3-5.3.1
GPP is the rate at which an ecosystem's product solar energy into chemical energy as biomass.
GPP是生態系中的生產者將太陽能轉化為化學能的數率

3-5.3.2
NPP=GPP-R,where R is energy used in respiration.
總初級生產力=淨初級生產力-R ，R是能源 用於呼吸