ABSTRACT
The AG-BG-coupled influence acts through a variety of interactions, which could be positive, negative, or neutral (Zak et al. 1994, Wardle 2002, Bardgett and Wardle 2003). Plants comprise a major component of AG and are the source of nutrients to soil biota, which is considered to be the major component of BG. Plants provide organic carbon to surface and subsurface soil decomposers and resources to root herbivores, pathogens, and symbiotic mutualists. Soil is a complex mix of organic and inorganic matter and has abundant microorganisms for nutrient mineralization and cycling, which regulates the
5.1 Introduction ..........................................................................................................................45 5.2 Aboveground subsystem influences on belowground subsystems .............................46 5.3 Belowground subsystem influences on aboveground subsystems ..............................46 5.4 Global change and aboveground-belowground interactions .......................................48 5.5 Biological invasion and aboveground-belowground interactions ...............................48
