Beule Lukas, Vaupel Anna, Moran-Rodas Virna Estefania
Julius Kühn Institute (JKI)-Federal Research Centre for Cultivated Plants, Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, 14195 Berlin, Germany.
Department of Crop Sciences, Division of Agricultural Entomology, University of Goettingen, Grisebachstraße 6, 37077 Goettingen, Germany.
Microorganisms. 2022 Mar 15;10(3):616. doi: 10.3390/microorganisms10030616.
Modern temperate alley-cropping systems combine rows of trees with rows of crops (agroforestry), which allows for diverse interspecific interactions such as the complementary and competitive use of resources. The complementary use of resources between trees and crops is considered the main advantage of these multifunctional land use systems over cropland monocultures. Moreover, several studies demonstrated that agroforestry systems are environmentally more sustainable than cropland monocultures. Over two decades of research on soil microorganisms in temperate alley-cropping systems are characterized by a variety of different methodological approaches and study designs to investigate the impact of agroforestry on the soil microbiome. Here, we review the available literature on the abundance, diversity, and functionality of soil microorganisms in temperate alley-cropping systems. Further, we identify current knowledge gaps as well as important experimental factors to consider in future studies. Overall, we found that temperate alley-cropping systems increase soil microbial abundance, diversity, and functions as compared to cropland monocultures, which is expected to contribute to enhanced biological soil fertility in these systems.
现代温带林粮间作系统将树木行与作物行结合起来（农林业），这使得不同物种间能够进行多样的相互作用，例如资源的互补利用和竞争利用。树木与作物之间的资源互补利用被认为是这些多功能土地利用系统相对于农田单一栽培的主要优势。此外，多项研究表明，农林业系统在环境方面比农田单一栽培更具可持续性。二十多年来，对温带林粮间作系统中土壤微生物的研究采用了各种不同的方法和研究设计，以探究农林业对土壤微生物群落的影响。在此，我们综述了温带林粮间作系统中土壤微生物的丰度、多样性和功能的现有文献。此外，我们还确定了当前的知识空白以及未来研究中需要考虑的重要实验因素。总体而言，我们发现与农田单一栽培相比，温带林粮间作系统增加了土壤微生物的丰度、多样性和功能，这有望提高这些系统中土壤的生物肥力。
