Scaling up or scaling down: the use of foliage and soil information for optimising the phosphate nutrition of radiata pine

Payn, T. W.; Skinner, M. F.; Hill, R. B.; Thorn, A. J.; Scott, John T.; Downs, S; Chapman, H. D.

doi:10.1016/s0378-1127(00)00413-8

Cited by 12 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simulations of the growth of P. radiata in New Zealand have shown nutrition to be generally adequate for the growth of stands . Commercial pine forests in New Zealand are regularly analysed for their foliar nutrient levels (Payn et al, 2000) which often indicate some degree of nutrient deficiencies (Smith et al, 2000;Davis et al, 2007). When stands are identified with deficient or marginal nutrient levels, supplemental fertilizers are usually supplied to rectify any deficiencies (Will, 1985).…”

Section: Discussionmentioning

confidence: 99%

Future wood productivity ofPinus radiatainNewZealand under expected climatic changes

Kirschbaum

Watt

Tait

et al. 2012

Global Change Biology

View full text Add to dashboard Cite

The physiologically based growth model CenW was used to simulate wood‐productivity responses of Pinus radiata forests to climate change in New Zealand. The model was tested under current climatic conditions against a comprehensive set of observations from growth plots located throughout the country. Climate change simulations were based on monthly climate change fields of 12 GCMs forced by the SRES B1, A1B and A2 emission scenarios for 2040 and 2090. Simulations used either constant or increasing CO2 concentrations corresponding to the different emission scenarios. With constant CO2, there were only slight growth responses to climate change across the country as a whole. More specifically, there were slight growth reductions in the warmer north but gains in the cooler south, especially at higher altitudes. For sites where P. radiata is currently grown, and across the full suite of GCMs and emission scenarios, changes in wood productivity averaged +3% for both 2040 and 2090. When increasing CO2 concentration was also included, responses of wood productivity were generally positive, with average increases of 19% by 2040 and 37% by 2090. These responses varied regionally, ranging from relatively minor changes in the north of the country to very significant increases in the south, where the beneficial effect of increasing CO2 combined with the beneficial effect of increasing temperatures. These relatively large responses to CO2 depend on maintenance of the current adequate fertility levels in most commercial plantations. Productivity enhancements came at the expense of some soil‐carbon losses. Average losses for the country were simulated to average 3.5% under constant CO2 and 1.5% with increasing CO2 concentration. Again, there were regional differences, with larger losses for regions with lesser growth enhancements, and lesser reductions in regions where greater productivity enhancements could partly balance the effect of faster decomposition activity.

show abstract

Section: Discussionmentioning

confidence: 99%

Future wood productivity ofPinus radiatainNewZealand under expected climatic changes

Kirschbaum

Watt

Tait

et al. 2012

Global Change Biology

View full text Add to dashboard Cite

show abstract

“…Nonetheless, nutrient deficiencies have been identified for many stands (Weston, 1956;Smith et al, 2000;Davis et al 2007). Limitations are generally identified through regular foliar nutrient analyses (Payn et al, 2000) and managed through supplemental fertiliser addition where samples indicate marginal nutrient levels (Will, 1985). With these interventions, plantation growth can achieve rates unconstrained by nutrient limitations.…”

Section: Other Factorsmentioning

confidence: 99%

Use of a process-based model to describe spatial variation in Pinus radiata productivity in New Zealand

Kirschbaum¹,

Watt²

2011

Forest Ecology and Management

View full text Add to dashboard Cite

“…The nutritional interpretation by vector analysis was supplemented with interpretations based on critical foliage levels for radiata pine and, to a lesser extent, on soil analyses (Will, 1966(Will, , 1985Blakemore et al, 1987;Boardman et al, 1997;Payn et al, 2000;Mead, 2005b;Davis et al, 2007;Smethurst et al, 2007).…”

Section: Yearmentioning

confidence: 99%

“…However, in the control treatment, foliar P dropped to marginal concentrations in years 3, 4 and 6 (Will, 1985;Boardman et al, 1997;Mead, 2005b), although only in year 6 was the concentration (0.11% P) low enough for a possible management intervention (Payn et al, 2000). Marginal fascicle P concentrations also occurred occasionally for ryegrass-clover, ryegrass alone and lucerne treatments (Table 3).…”

Section: Nutrient Interpretationsmentioning

confidence: 99%

Using vector analysis to understand temporal changes in understorey-tree competition in agroforestry systems

Mead¹,

Scott²,

Chang³

2010

Forest Ecology and Management

View full text Add to dashboard Cite

Scaling up or scaling down: the use of foliage and soil information for optimising the phosphate nutrition of radiata pine

Cited by 12 publications

References 1 publication

Future wood productivity ofPinus radiatainNewZealand under expected climatic changes

Future wood productivity ofPinus radiatainNewZealand under expected climatic changes

Use of a process-based model to describe spatial variation in Pinus radiata productivity in New Zealand

Using vector analysis to understand temporal changes in understorey-tree competition in agroforestry systems

Contact Info

Product

Resources

About