Soil microbial functions and enzyme activity:BAC: Biodiversity and Climate

Climate changes forecast for our region by GCM???s and shifts in biodiversity and composition each have the potential to alter ecosystem functioning; their interactive effects are unknown. The "BAC" experiment is designed to determine the direct and interactive effects of plant species numbers, plant community composition, temperature, and precipitation on 11 productivity, C and N dynamics, stability, and plant, microbe, and insect species abundances in CDR grassland ecosystems.基于全球气候模式（Global Climate Model, GCM）预测的本区域气候变化，以及生物多样性与群落组成的变化，均有可能改变生态系统功能；但其交互作用效应目前尚不明确。"BAC"实验旨在探明植物物种数量、植物群落组成、温度与降水对CDR草原生态系统中11项指标（涵盖生产力、碳（C）与氮（N）动态、群落稳定性，以及植物、微生物和昆虫的物种丰度）的直接与交互作用效应。