地理翻譯3-5.5

Some ecosystems produce plant matter faster than others do
有些生態系產生植物問題比其他還快速地

The amount of life (biomass) that a particular ecosystem can support is determined by the amount of energy captured and stored as chemical energy by the producers of that ecosystem and how rapidly they can produce and store such chemical energy. Gross primary productivity (GPP) is the rate at which an ecosystem‘s producers convert solar into chemical energy as biomass. It is usually measured in terms of energy production per unit area over a given time span, such as kilocalories per square meter per year (kcal/㎡/yr)
數額生命（生物量）的一個特定的生態系統可以支持所確定的數額能源擷取並儲存為化學能的生產，生態系統，以及如何迅速，他們可以生產和儲存化學能等。總初級生產力（GPP）是一個生態系統的生產者太陽能轉換成化學能的生物量的速度。通常是衡量能源生產單位面積超過某一時間跨度，如千卡每平方米每年（大卡/ ㎡ /年）

To stay alive, grow, and reproduce, producers must use some of the chemical energy stored in the biomass they make for their own respiration. Net primary productivity (NPP) is the rate at which producers use photosynthesis to produce and store chemical energy minus the rate at which they use some of this stored chemical energy through aerobic respiration. In other words, NPP=GPP-R, where R is energy used in respiration. NPP measures how fast producers can provide the nutrients or chemical energy stored in their tissue that is potentially available to other organisms (consumers) in an ecosystem.
為了生存，成長，繁殖，生產者必須使用一些化學能儲存在生物量為自己的呼吸。淨初級生產力（NPP）是生產者使用光合生產的速度和儲存化學能減的速度，他們使用通過有氧呼吸的這種存儲的一些化學能。換言之，NPP(淨初級生產力)=GPP(總初級生產力)- R的，如果R是利用呼吸作用的能源。NPP措施如何快速生產者可以提供的營養素或化學能儲存在他們的組織，可能是提供給其他生物體（消費者）在一個生態系統。