Mineral nutrition of slash pine in subtropical australia. I. stand growth response to fertilization

1995 ◽  
Vol 41 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Z. H. Xu ◽  
J. A. Simpson ◽  
D. O. Osborne
Keyword(s):  
Mineral Nutrition ◽  
Growth Response ◽  
Slash Pine ◽  
Stand Growth ◽  
Subtropical Australia

The Growth response of slash pine (Pinus elliottii) to climate in the Georgia Coastal Plain

2014 ◽  
Vol 32 (2) ◽  
pp. 127-136 ◽  
Author(s):  
Kathleen C. Parker ◽  
Carrie Jensen ◽  
Albert J. Parker
Keyword(s):  
Coastal Plain ◽  
Growth Response ◽  
Pinus Elliottii ◽  
Slash Pine

Growth Response of Wheat to CO 2 Enrichment and Different Levels of Mineral Nutrition 1

1981 ◽  
Vol 73 (6) ◽  
pp. 1023-1027 ◽  
Author(s):  
Nasser Sionit ◽  
D. A. Mortensen ◽  
B. R. Strain ◽  
H. Hellmers
Keyword(s):  
Mineral Nutrition ◽  
Growth Response ◽  
Different Levels

Age, competition, disturbance and elevation effects on tree and stand growth response of primary Picea abies forest to climate

2015 ◽  
Vol 354 ◽  
pp. 77-86 ◽  
Author(s):  
Irantzu Primicia ◽  
Jesús Julio Camarero ◽  
Pavel Janda ◽  
Vojtĕch Čada ◽  
Robert C. Morrissey ◽  
...  
Keyword(s):  
Picea Abies ◽  
Growth Response ◽  
Stand Growth

scholarly journals Drainage and Stand Growth Response in Peatland Forests—Description, Testing, and Application of Mechanistic Peatland Simulator SUSI

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 293
Author(s):  
Ari Laurén ◽  
Marjo Palviainen ◽  
Samuli Launiainen ◽  
Kersti Leppä ◽  
Leena Stenberg ◽  
...  
Keyword(s):  
Growth Response ◽  
Model Development ◽  
Cost Benefit ◽  
Weather Conditions ◽  
Growth Responses ◽  
Growth Data ◽  
Low Oxygen ◽  
Stand Growth ◽  
Network Maintenance ◽  
Potassium Supply

Drainage is an essential prerequisite in peatland forest management, which generally, but not always, increases stand growth. Growth response depends on weather conditions, stand and site characteristics, management and biogeochemical processes. We constructed a SUSI-simulator (SUoSImulaattori, in Finnish), which describes hydrology, stand growth and nutrient availability under different management, site types and weather conditions. In the model development and sensitivity analysis, we used water table (WT) and stand growth data from 11 Scots pine stands. The simulator was validated against a larger dataset collected from boreal drained peatlands in Finland. In validation, SUSI was shown to predict WT and stand growth well. Stand growth was mainly limited by inadequate potassium supply, and in Sphagnum peats by low oxygen availability. Model application was demonstrated for ditch network maintenance (DNM) by comparing stand growth with shallow (−0.3 m) and deep ditches (−0.9 m): The growth responses varied between 0.5 and 3.5 m3 ha−1 in five years, which is comparable to experimental results. SUSI can promote sustainable peatland management and help in avoiding unnecessary drainage operations and associated environmental effects, such as increased carbon emissions, peat subsidence, and nutrient leaching. The source code is publicly available, and the modular structure allows model extension to cost–benefit analyses and nutrient export to water courses.

Wood volume increment in thinned, 50- to 55-year-old, mixed-species Allegheny hardwoods

1996 ◽  
Vol 26 (5) ◽  
pp. 819-835 ◽  
Author(s):  
Christopher A. Nowak
Keyword(s):  
Species Composition ◽  
Sugar Maple ◽  
Growth Response ◽  
Stand Density ◽  
Black Cherry ◽  
Regression Equations ◽  
Mixed Species ◽  
Wood Volume ◽  
Stand Growth ◽  
Volume Increment

A thinning study in 50- to 55-year-old, even-aged, mixed species Allegheny hardwoods produced highly variable merchantable stemwood volume increment responses. Regression equations relating parameters of stand growth (ingrowth, mortality, survivor growth, net growth, and gross growth) to relative stand density had R2 values ranging from 0.07 to 0.48. When study plots with similar pretreatment species composition were assigned to four groups using cluster analysis, R2 values were increased to 0.94–0.99. There were significant differences in the relationships between relative stand density and growth response variables among all plot groups. At all densities, plots with a high percentage of black cherry (Prunusserotina Ehrh.) had the highest volume increment. Plots with a high percentage of black cherry and a low percentage of sugar maple (Acersaccharum Marsh.) showed a decrease in volume increment, relatively high ingrowth, and relatively low mortality with a decrease in relative stand density. Plots with a high percentage of sugar maple and low percentage of black cherry showed an increase in volume increment, relatively low ingrowth, and relatively high mortality with decreases in relative stand density. Guidelines for thinning Allegheny hardwoods recommend a residual relative stand density of 60%. These guidelines may need to be revised to incorporate considerations of species composition. Stands of pole-size to small sawtimber-size trees dominated by black cherry may require a residual density higher than 60% to maximize the volume increment of merchantable stemwood. The volume increment in similarly structured stands dominated by sugar maple might be maximized at densities lower than 60%.

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