4.7 Article

Intensive site preparation for reforestation wastes multi-trophic biodiversity potential in commercial oak woodlands

期刊

JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 300, 期 -, 页码 -

出版社

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2021.113741

关键词

Arthropods; Forest management; Functional diversity; Habitat heterogeneity; Mechanical soil preparation; Sustainable forestry

资金

  1. Specific University Research Fund of the Faculty of Forestry and Wood Technology at Mendel University in Brno [LDF_VT_2016002/2016, LDF_TP_2020006]
  2. Ministry of Culture of the Czech Republic [MK000094862, VUKOZ-IP-00027073]

向作者/读者索取更多资源

The study found that intensive management leads to habitat homogenization and reduced biodiversity, while extensive management helps improve functional diversity and redundancy, preserving more endangered species. Extensive site preparation can enhance ecosystem multi-functionality, including primary productivity and ecosystem resilience.
Lowland oak forests host high biodiversity throughout Europe, and to maintain their high biodiversity potential we need to understand how current silviculture practices influence these ecosystems. The most common harvest approach in oak woodlands remains clear-cutting followed by site preparation for reforestation. The site prep-aration can vary in intensity and possibly affect forest biodiversity in various ways. We studied the impact of site preparation intensity on ground-dwelling arthropod predators and detritivores in commercial oak woodlands. The intensive management included mechanical site preparation with soil milling, stump removal, and herbicide application. The extensive management consisted of natural succession after reforestation with only such slight disturbances as regular hand-provided mowing of vegetation. We recorded 120 spider species, 92 species of ground beetles, 10 species of centipedes, 17 species of millipedes, and 7 species of woodlice, including a rela-tively large number of threatened species. We found that intensive post-logging management strongly homog-enized the habitat structure, and this led to low multi-trophic taxonomic and functional diversity in comparison to that under extensive management. At sites with extensive management, there was not only high functional diversity but also high functional redundancy. Species of conservation concern almost vanished from clearings under intensive management. The high multi-trophic diversity and functional redundancy indicate that extensive site preparation may enhance ecosystem multi-functionality, including primary productivity and ecosystem resilience. Extensive post-harvest management is therefore strongly preferable, and it is also economically more feasible. Intensive post-harvest management should be prohibited in lowland forests within transition zones to localities under nature protection or in natural oak forests.

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