Forest Soils

and, Peter M. Attiwill; Weston, Christopher J.

doi:10.1002/9780470757062.ch7

Cited by 5 publications

(2 citation statements)

References 137 publications

(192 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Logging and burning risked degradation of ecosystem function (Humphries & Craig 1981; Judd 1996) beyond an abiotic threshold. Problems related to loss of organic matter, disruption to nutrient cycling, and soil erosion and compaction (Attiwill & Weston 2001) were not observed here, indicating that logging and burning may not impair soil nutrient status and create abiotic barriers to natural regeneration.…”

Section: Discussionmentioning

confidence: 71%

Experimental Manipulation of Restoration Barriers in Abandoned Eucalypt Plantations

Cummings

Reid

Davies

et al. 2007

Restoration Ecology

View full text Add to dashboard Cite

Expansion of the nature conservation estate in northeastern New South Wales, Australia, has captured weed-infested timber plantations amid a mosaic of high conservation value lands. We adopted a state-and-transition approach to test the hypothesis that restoration barriers restrict the natural regeneration of native species in Eucalyptus grandis plantations infested by Lantana camara in Bongil Bongil National Park, New South Wales. Plantation tree thinning and weed control were applied in factorial combination at three sites (totaling to 4.5 ha). Topsoil chemistry responses to these interventions were attributable to the ''ash bed'' effect, with temporary increases in topsoil pH W and nitrate, particularly where canopy reduction was greatest. Other soil changes were minor, indicating that thinning and burning did not risk soil degradation. Plant species richness and functional group representation in the regenerating understorey were improved by the interventions. Regeneration of native potential canopy trees, understorey trees, shrubs and woody climbers, and perennial forbs all increased with canopy retention. Grass cover dominated the regeneration where canopy cover was less than 50%. In the absence of weed control, the cover of introduced shrubs increased with reduction in canopy cover, as did the rate of understorey regeneration generally. These responses indicate that thinning and weed control can reinstate succession, leading to structurally and compositionally diverse forest. Given the abundance of native woody regeneration under retained canopy, the lantana understorey was more important in inhibiting native regeneration. The experimental approach will promote efficient use of resources across the remaining 200 ha of low conservation value plantations in this national park.

show abstract

Section: Discussionmentioning

confidence: 71%

Experimental Manipulation of Restoration Barriers in Abandoned Eucalypt Plantations

Cummings

Reid

Davies

et al. 2007

Restoration Ecology

View full text Add to dashboard Cite

show abstract

“…Most hydro-chemical studies examining the impacts of temperate and tropical forestry indicate that timber harvesting results in accelerated nutrient flows along catchment rivers (e.g., Bruijnzeel, 1990;Stevens et al, 1995;Swank, 1988). This has the potential to both (a) reduce the fertility of the catchment system being harvested (Attiwill & Weston, 2001), and (b) increase the likelihood of downstream eutrophication (Tundisi, 1990). Data on the affect of selective tropical forestry on catchment-scale nutrient flux in natural forests are, however, restricted to a very few studies.…”

Section: Nutrient Flows ______________________________________mentioning

confidence: 99%