THE GLOBAL SOIL COMMUNITY AND ITS INFLUENCE ON BIOGEOCHEMISTRY

雩风三日

THE GLOBAL SOIL COMMUNITY AND ITS INFLUENCE ON BIOGEOCHEMISTRY
全球土壤群落及其对生物地球化学的影响

      Soil organisms represent the most biologically diverse community on land and govern the turnover of the largest organic matter pool in the terrestrial biosphere. The highly complex nature of these communities at local scales has traditionally obscured efforts to identify unifying patterns in global soil biodiversity and biogeochemistry. As a result, environmental covariates have generally been used as a proxy to represent the variation in soil community activity in global biogeochemical models. Yet over the past decade, broad-scale studies have begun to see past this local heterogeneity to identify unifying patterns in the biomass, diversity, and composition of certain soil groups across the globe. These unifying patterns provide new insights into the fundamental distribution and dynamics of organic matter on land.
     土壤生物代表了陆地上最具生物多样性的群落，并控制着陆地生物圈中最大的有机物库的周转。传统上，这些群落在局部尺度上的高度复杂性掩盖了识别全球土壤生物多样性和生物地球化学统一模式的努力。因此，在全球生物地球化学模型中，环境协变量通常被用于表征土壤群落活动的变化。然而，在过去的十年中，广泛的研究已经开始看到过去这种局部异质性，以确定在生物量、多样性和全球某些土壤类群组成的统一模式。这些统一的模式为陆地有机质的基本分布和动态提供了新的见解。