scholarly journals Biomass Accumulation and Net Primary Production during the Early Stage of Secondary Succession after a Severe Forest Disturbance in Northern Japan

Forests ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 287 ◽  
Author(s):  
Tomotsugu Yazaki ◽  
Takashi Hirano ◽  
Tomohito Sano
Keyword(s):  
Primary Production ◽  
Secondary Succession ◽  
Net Primary Production ◽  
Early Stage ◽  
Forest Disturbance ◽  
Biomass Accumulation ◽  
Northern Japan

Changes in biomass and production over 53 years in a coastal Piceasitchensis –Tsugaheterophylla forest approaching maturity

1990 ◽  
Vol 20 (10) ◽  
pp. 1602-1610 ◽  
Author(s):  
P. A. Harcombe ◽  
Mark E. Harmon ◽  
Sarah E. Greene
Keyword(s):  
Primary Production ◽  
Fine Roots ◽  
Net Primary Production ◽  
Forest Biomass ◽  
Biomass Accumulation ◽  
Maintenance Respiration ◽  
Bole Biomass

Using periodic remeasurements of tagged trees in nine 0.4-ha sample plots in a Piceasitchensis (Bong.) Carr. – Tsugaheterophylla (Raf.) Sarg. forest at Cascade Hand Experimental Forest, Oregon, we calculated that biomass of bolewood increased from 570 Mg•ha−1 at age 85 years to 760 Mg•ha−1 at age 138 years. Net primary production of bolewood declined from 11 to about 6 Mg•ha−1•year−1, and mortality loss increased from 2 to about 6 Mg•ha−1•year−1. Values for 37-year-old plots in the same area were 210–360 Mg•ha−1•year−1 bole biomass, 7–20 Mg•ha−1•year−1 bolewood production, and 0–2 Mg•ha−1•year−1 mortality loss. Indications are that bolewood production and biomass were lower in the older plots when they were 37 years old. In the older plots, biomass did not increase between ages 120 and 138. Of the photosynthate potentially available for bolewood production, some replaces biomass lost via mortality and some is allocated to maintenance (respiration plus allocation to fine roots). We estimate that one-quarter to one-half of the production is lost by mortality, and that mortality loss may thus be an important factor limiting forest biomass accumulation.

The Contribution of Litterfall to Net Primary Production During Secondary Succession in the Boreal Forest

Ecosystems ◽  
2016 ◽  
Vol 20 (4) ◽  
pp. 830-844 ◽  
Author(s):  
Han Y. H. Chen ◽  
Amber N. Brant ◽  
Meelis Seedre ◽  
Brian W. Brassard ◽  
Anthony R. Taylor
Keyword(s):  
Primary Production ◽  
Boreal Forest ◽  
Secondary Succession ◽  
Net Primary Production

Nutrient Cycling in a Eucalyptus obliqua (L'hérit.) Forest. III. Growth, Biomass, and Net Primary Production

1979 ◽  
Vol 27 (4) ◽  
pp. 439 ◽  
Author(s):  
PM Attiwill
Keyword(s):  
Primary Production ◽  
Net Primary Production ◽  
Biomass Accumulation ◽  
The United States ◽  
Stand Age ◽  
Heartwood Formation ◽  
Tree Diameter ◽  
Eastern Australia ◽  
Independent Variable ◽  
Metabolic Transport

The biomass of Eucalyptus obliqua forest in south-eastern Australia was estimated over a 22-year period by using allometric relationships in which tree diameter was the independent variable. Biomass increased from 24 kg m-2 at a stand age of 44 years to 37 kg m-2 at 66 years. Maximum net primary production (NPP) was 1.4 kg m-2 year-1. Biomass accumulation ratios (biomass/NPP) follow a trajectory with age which fits closely R. H. Whittaker's work in temperate forests of the United States. It is proposed that the growth of forests is regulated within three definable and sequential stages: (i) growth of the photosynthetic display and of the metabolic transport system, (ii)development of heartwood as a support structure system, and (iii) maintenance of the ecosystem through the production of litter. Essential to this view is the recognition of heartwood formation as a growth-regulating process rather than as the end-result of an ageing process.

Estimating net primary production and annual plant carbon inputs, and modelling future changes in soil carbon stocks in arable farmlands of northern Japan

2011 ◽  
Vol 144 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Nobuhisa Koga ◽  
Pete Smith ◽  
Jagadeesh B. Yeluripati ◽  
Yasuhito Shirato ◽  
Sonoko D. Kimura ◽  
...  
Keyword(s):  
Primary Production ◽  
Soil Carbon ◽  
Net Primary Production ◽  
Carbon Stocks ◽  
Annual Plant ◽  
Soil Carbon Stocks ◽  
Northern Japan

scholarly journals Moderate forest disturbance as a stringent test for gap and big-leaf models

2015 ◽  
Vol 12 (2) ◽  
pp. 513-526 ◽  
Author(s):  
B. Bond-Lamberty ◽  
J. P. Fisk ◽  
J. A. Holm ◽  
V. Bailey ◽  
G. Bohrer ◽  
...  
Keyword(s):  
Primary Production ◽  
Tree Mortality ◽  
Net Primary Production ◽  
Forest Disturbance ◽  
Gross Primary Production ◽  
Structural Complexity ◽  
Terrestrial Ecosystem ◽  
Ecosystem Models ◽  
Area Index ◽  
C Cycle

Abstract. Disturbance-induced tree mortality is a key factor regulating the carbon balance of a forest, but tree mortality and its subsequent effects are poorly represented processes in terrestrial ecosystem models. It is thus unclear whether models can robustly simulate moderate (non-catastrophic) disturbances, which tend to increase biological and structural complexity and are increasingly common in aging US forests. We tested whether three forest ecosystem models – Biome-BGC (BioGeochemical Cycles), a classic big-leaf model, and the ZELIG and ED (Ecosystem Demography) gap-oriented models – could reproduce the resilience to moderate disturbance observed in an experimentally manipulated forest (the Forest Accelerated Succession Experiment in northern Michigan, USA, in which 38% of canopy dominants were stem girdled and compared to control plots). Each model was parameterized, spun up, and disturbed following similar protocols and run for 5 years post-disturbance. The models replicated observed declines in aboveground biomass well. Biome-BGC captured the timing and rebound of observed leaf area index (LAI), while ZELIG and ED correctly estimated the magnitude of LAI decline. None of the models fully captured the observed post-disturbance C fluxes, in particular gross primary production or net primary production (NPP). Biome-BGC NPP was correctly resilient but for the wrong reasons, and could not match the absolute observational values. ZELIG and ED, in contrast, exhibited large, unobserved drops in NPP and net ecosystem production. The biological mechanisms proposed to explain the observed rapid resilience of the C cycle are typically not incorporated by these or other models. It is thus an open question whether most ecosystem models will simulate correctly the gradual and less extensive tree mortality characteristic of moderate disturbances.

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