However, her findings that clear cutting was not only damaging from an ecological point of view, but also potentially detrimental to commercial yield, were not conducive to the standard approach to forest management at the time, leading to bitter clashes. Simard grew up as a forester, and her discoveries of the fungal-mediated interactions between trees grew directly out of experiments in heavily extracted systems. The entangled relationship between the two fields is illustrated particularly well in Suzanne Simard’s recent autobiography, Finding the Mother Tree. In recent decades, forestry has become a more complete science that considers long-term sustainability, and ecology has started to explore the murky world of heavily human-influenced ecosystems. However, the authors found that forests dominated by either type have relatively low tree diversity, and that high diversity is found where both types of network are present. It has been suggested that ectomycorrhizae drive positive plant–soil feedbacks that result in low tree diversity, whereas arbuscular mycorrhizae support high diversity because of negative feedbacks. investigate how the two types of fungal network affect tree diversity.
This means that forests with both types of network are rare, and instead forests dominated by one or the other constitute two alternative stable states. test the idea that the two common types of symbiotic fungal network of trees, arbuscular mycorrhizae and ectomycorrhizae, each generate positive feedbacks that favour their own network over the other. Both make use of data from the US Forest Service Forest Inventory Analysis. This issue includes two studies that explore the important, but sometimes neglected, role of mycorrhizae in determining the macroscale structure of forests.
0 kommentar(er)
