SPP 1315: Biogeochemical Interfaces in Soil

土壤是由固、液、气三相组成的活跃的非均质三相体系。它是生物圈、水圈、大气圈和岩石圈之间的动态界面，因此是“临界区”的基本组成部分。优先方案内的研究旨在对土壤中的生物地球化学界面进行系统的结构表征和功能探索，并揭示其对有机化学品的归宿和影响的作用。整体连接的科学目标是获得复杂的相互作用和相互依赖性的物理，化学和生物过程在地球化学界面操作的机械理解。巨大的挑战是确定控制复杂结构的土壤地球化学界面的因素，以机械的方式将分子和生物体规模的运作过程与聚集规模的活跃现象联系起来，并在一般机械框架内解释土壤中有机化学品的中长期行为。本研究基于以下假设：

Soil is an enlivened, heterogeneous three-phase system made of solid, liquid and gaseous components. It serves as a dynamic interface between the biosphere, hydrosphere, atmosphere and lithosphere and is thus the essential compartment of the "critical zone". Research within the Priority Programme aims at the systematic structural characterisation and functional exploration of biogeochemical interfaces in soil and at unravelling their role for fate and effect of organic chemicals. The overall connecting scientific goal is to gain a mechanistic understanding of the complex interplay and interdependencies of physical, chemical and biological processes operative at biogeochemical interfaces. Grand challenges are to identify the factors controlling the complex architecture of biogeochemical interfaces, to link the processes operative at the molecular and organism scale to phenomena active at the aggregate scale in a mechanistic way and to explain the medium- to long-term behaviour of organic chemicals in soil within a general mechanistic framework. The research is based on the following hypotheses: