BOREAS TE-19 Ecosystem Carbon Balance Model

The Spruce and Moss Model (SPAM) was designed to simulate the daily carbon balance of a black spruce/moss boreal forest ecosystem. It is driven by daily weather conditions and consists of four components: (1) soil climate; (2) tree photosynthesis and respiration; (3) moss photosynthesis and respiration; and (4) litter decomposition and associated heterotrophic respiration. The model can be used to generate predictions of total site net ecosystem exchange of carbon (NEE), total soil dark respiration (live roots + heterotrophs + live moss), spruce and moss net productivity, and net carbon accumulation in the soil.

松树与苔藓模型（SPAM）旨在模拟黑松/苔藓北方森林生态系统的日碳平衡。该模型以每日天气条件为驱动，包含四个组成部分：（1）土壤气候；（2）树木光合作用与呼吸作用；（3）苔藓光合作用与呼吸作用；（4）凋落物分解及其相关的异养呼吸作用。该模型可用于生成对总站点净生态系统碳交换（NEE）、总土壤暗呼吸（活根+异养生物+活苔藓）、松树与苔藓净生产力以及土壤中净碳积累的预测。