Andre M, Cournac L, Saugier B, Caloin M
Departement de Physiologie Vegetale et Ecosystemes, Centre de Cadarache, Saint Paul lez Durance, France.
Acta Astronaut. 1992 Jul;27:189-96. doi: 10.1016/0094-5765(92)90197-q.
An experiment of Artificial Ecosystem in closed growth chambers is described. It comprises a biomass producer compartment coupled with a decomposer compartment. A model of carbon cycle is presented, simulating the CO2 changes in atmosphere and the carbon status in plants and in the decomposer system. Results of variation in several parameters such as photoperiod, rate of photosynthesis, percentage of harvested biomass introduced in decomposer, kinetics of biomass decomposition, are presented. Positive conclusions are deduced about the feasability of real experiments without particular control of CO2 nor buffering system. Applications in studies on plant-soil-atmosphere ecosystems, for spatial and terrestrial researches, are discussed.
本文描述了在封闭生长室中进行的人工生态系统实验。它包括一个与分解者隔室相连的生物量生产者隔室。提出了一个碳循环模型,模拟了大气中的二氧化碳变化以及植物和分解者系统中的碳状况。给出了几个参数变化的结果,如光周期、光合作用速率、引入分解者的收获生物量百分比、生物量分解动力学等。得出了关于在不特别控制二氧化碳和缓冲系统的情况下进行实际实验可行性的肯定结论。讨论了该模型在植物 - 土壤 - 大气生态系统研究中的应用,包括空间和陆地研究。