Impact of intensive forest management on soil quality and natural regeneration of Norway spruce
| Autor: | Paavo Närhi, Marja-Liisa Sutinen, Raimo Sutinen, Hannu Herva, Matti Piekkari |
|---|---|
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Plant and Soil. 336:421-431 |
| ISSN: | 1573-5036 0032-079X |
| Popis: | The northern boreal forests in Fennoscandia have been managed for decades using clear-cut harvesting and subsequent mechanical site preparation (MSP). MSP is intended to reduce competing vegetation, improve soil temperature and water conditions as well as mobilize nutrients for the use by outplanted seedlings. The use of heavy machinery, particularly bulldozer-driven Marttiini-plough, has raised concerns about soil quality and therefore sustainability of forest productivity and forest floor diversity. We applied soil physical measurements and inventories of naturally established Norway spruce (Picea abies (L.) Karst.) to investigate these concerns 16–18 years after intensive forest management in Finnish Lapland. MSP with Marttiini-plough had inverted Podzol soil profile and created the following micro-sites: trench, tilt and untreated (UTR) soil between the ploughed tracks at former spruce sites. The soil electrical conductivity (ECa) and soil solution conductivity (ECw) at micro-sites of spruce seedling/saplings, differed significantly (p ECwTILT = 10.7 ± 9.2mSm−1 > ECwTRENCH = 2.2 ± 2.9mSm−1. Spruce individuals at UTR (mean height 127 ± 89 cm) and tilt (111 ± 74 cm) were significantly (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|