scholarly journals Exploring the factors affecting carbon and nutrient concentrations in tree biomass components in natural forests, forest plantations and short rotation forestry

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Roque Rodríguez-Soalleiro ◽  
Cristina Eimil-Fraga ◽  
Esteban Gómez-García ◽  
Juan Daniel García-Villabrille ◽  
Alberto Rojo-Alboreca ◽  
...  
Keyword(s):  
Nutrient Concentrations ◽  
Forest Plantations ◽  
Natural Forests ◽  
Tree Biomass ◽  
Factors Affecting ◽  
Short Rotation ◽  
Biomass Components

scholarly journals Analysis of tree biomass, net sequestered carbon and bioenergy potency in dry forest ecosystem, Indonesia

2021 ◽  
Vol 9 (1) ◽  
pp. 1-8
Author(s):  
Aah Ahmad Almulqu ◽  
Muhammad Halkis ◽  
Emi Renoat
Keyword(s):  
Forest Ecosystem ◽  
Forest Area ◽  
Dry Forest ◽  
Tree Biomass ◽  
Short Rotation ◽  
Average Biomass ◽  
Biomass Components ◽  
Tree Component

This study examines the potential to tree component biomass, biomass for bioenergy product and sequester carbon of forest area. CO2FIX program was used to determine about these value. In order to know about these values, we used CO2FIX program. Thinning harvesting scenarios were analysed, involving the establishment of short rotation harvesting (each 10 years) and long rotation plantations (200 year). As a result, an overall tree biomass components (stem, foliage, branch and root) were respectively recorded as follow: 2.49 ton/ha±0.67, 0.14 ton/ha±0.03, 0.35 ton/ha±0.09 and 0.65 ton/ha±0.18. The potential of biomass for bioenergy product and sequester carbon was increase until the end of project simulation. The increase average biomass of bioenergy was 25.96 Mg/ha±13.46 and the average of net sequestered carbon increase about 16.6±35.9 MgCO2equiv/ha. Our analysis on this study for all research variables is highest at each 40 years period because at this age, the rate of increment in the biomass of the tree is maximized.

scholarly journals Fir (Abies spp.) stand biomass additive model for Eurasia sensitive to winter temperature and annual precipitation

2019 ◽  
Vol 65 (3-4) ◽  
pp. 166-179 ◽  
Author(s):  
Vladimir A. Usoltsev ◽  
Katarína Merganičová ◽  
Bohdan Konôpka ◽  
Anna A. Osmirko ◽  
Ivan S. Tsepordey ◽  
...  
Keyword(s):  
Climate Change ◽  
Biomass Allocation ◽  
Aboveground Biomass ◽  
Additive Model ◽  
Tree Biomass ◽  
Common Pattern ◽  
Temperature And Precipitation ◽  
Shoot Ratio ◽  
Biomass Components ◽  
Increasing Temperature

Abstract Climate change, especially modified courses of temperature and precipitation, has a significant impact on forest functioning and productivity. Moreover, some alterations in tree biomass allocation (e.g. root to shoot ratio, foliage to wood parts) might be expected in these changing ecological conditions. Therefore, we attempted to model fir stand biomass (t ha−1) along the trans-Eurasian hydrothermal gradients using the data from 272 forest stands. The model outputs suggested that all biomass components, except for the crown mass, change in a common pattern, but in different ratios. Specifically, in the range of mean January temperature and precipitation of −30°C to +10°C and 300 to 900 mm, fir stand biomass increases with both increasing temperature and precipitation. Under an assumed increase of January temperature by 1°C, biomass of roots and of all components of the aboveground biomass of fir stands increased (under the assumption that the precipitation level did not change). Similarly, an assumed increase in precipitation by 100 mm resulted in the increased biomass of roots and of all aboveground components. We conclude that fir seems to be a perspective taxon from the point of its productive properties in the ongoing process of climate change.

Forest floor mass and nutrients in two chronosequences of plantations: Jack pine vs. black spruce

1998 ◽  
Vol 78 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Helmut Krause
Keyword(s):  
Nutrient Cycling ◽  
Picea Mariana ◽  
Forest Floor ◽  
Pinus Banksiana ◽  
Forest Cover ◽  
Black Spruce ◽  
Jack Pine ◽  
Pine Plantations ◽  
Nutrient Concentrations ◽  
Natural Forests

The purpose of this study was to determine whether change of forest cover had an effect on the development of the organic surface horizons, particularly on those variables that influence nutrient cycling and forest productivity. Jack pine (Pinus banksiana Lamb.) and black spruce (Picea mariana [Mill.] B.S.P.) plantations were selected from among the youngest to oldest (2–16 yr) within a 100 km2 area in southeastern New Brunswick. Natural forests were also included as benchmark sites. The forest floor and tree foliage was sampled and trees measured on 0.05-ha plots. The forest floor samples were used to determine organic mass, nutrient contents and pH. In pine plantations, organic matter accumulated rapidly during the period of exponential tree growth, but leveled off at about 45 Mg ha–1. This was within the range of benchmark sites with mixed conifer-hardwood cover. In spruce plantations, the forest floor mass ranged upward to 77 Mg ha–1. Development was strongly influenced by the nature of the previous forest. Spruce forest floors were on average more acid and had lower nutrient concentrations, particularly N and Ca. The observed differences suggest that nutrients are recycled more rapidly in the pine plantations, partly explaining the superior growth of the latter. Key words: Forest floor, Kalmia angustifolia L., Picea mariana (Mill.) B.S.P., Pinus banksiana Lamb., nutrient cycling, plantation forest

Nested forest nutrient cycles: implications for plantation management

1993 ◽  
Vol 69 (6) ◽  
pp. 694-698 ◽  
Author(s):  
O. Q. Hendrickson ◽  
J. Richardson
Keyword(s):  
Forest Management ◽  
Litter Production ◽  
Forest Plantations ◽  
Nutrient Cycles ◽  
Natural Forests ◽  
Plantation Forest ◽  
Atmospheric Processes ◽  
Basic Understanding ◽  
Internal Storage ◽  
Storage Pools

Natural forests may be viewed as containing nested nutrient cycles: an "external" cycle mediated by atmospheric processes, a "soil" cycle of litter production and decay, and one or more "plant" cycles involving retranslocation and internal storage pools. The goal of plantation forest management should be to enhance all of these cycles. Stimulating the "external" cycle by adding fertilizer nutrients is likely to increase "soil" and "plant" cycling rates as well. A basic understanding of how these nested cycles are linked can improve the management of nutrients in forest plantations.

scholarly journals Conversion of natural forests to managed forest plantations decreases tree resistance to prolonged droughts

2015 ◽  
Vol 355 ◽  
pp. 58-71 ◽  
Author(s):  
Jean-Christophe Domec ◽  
John S. King ◽  
Eric Ward ◽  
A. Christopher Oishi ◽  
Sari Palmroth ◽  
...  
Keyword(s):  
Forest Plantations ◽  
Natural Forests ◽  
Managed Forest ◽  
Tree Resistance

Ecological and Ethnobotanical Characterisation of Gujarat Forests

2020 ◽  
Vol 6 (01) ◽  
pp. 09-27
Author(s):  
S. P.S. Kushwaha ◽  
G. D. Bhatt ◽  
D. M. Tadvi ◽  
S. Nandy
Keyword(s):  
Deciduous Forest ◽  
Forest Plantations ◽  
Degraded Forest ◽  
Species Trees ◽  
Natural Forests ◽  
Gujarat State ◽  
Eucalyptus Plantation ◽  
Extensive Field ◽  
Dry Deciduous Forest ◽  
Anogeissus Pendula

This study focused on the ecological and ethnobotanical characteristics of the natural forests, forest plantations, and forest orchards in the Gujarat state of India through an extensive field survey of trees, shrubs, and herbs over a span of four years. We inventoried 345 tree, 345 shrub, and 1,380 herb plots using a stratified random sampling design. In all, 706 species [trees (224), shrubs (68), and herbs (414)] were recorded. The highest number of species were noted in teak mixed dry deciduous forest (207), followed by scrub (132), thorn forest (91), grassland (78), teak mixed moist deciduous forest (51), forest plantations (34), degraded forest (30), Prosopis juliflora scrub (24), forest orchard (19), ravine thorn forest (16), Anogeissus pendula forest (8), riverain forest (8), Eucalyptus plantation (6), mangrove forest (1), and mangrove scrub (1). Fabaceae was observed to be the dominant family. Out of total species, twenty-nine (29) species were found to be rare (25), endangered (2), and threatened (2). Fabaceae was also the dominant family for rare, endangered, and threatened (RET) species. Six endemic species were recorded. The highest value of Shannon’s Index of plant diversity was noticed in teak mixed dry deciduous forest (3.14), followed by teak mixed moist deciduous forest (2.96), ravine thorn forest (2.08), forest plantations (1.97), thorn forest (1.64), riverine forest (1.41), and degraded forest (1.49). Two hundred fifty-two species, including trees (24), shrubs (101), herbs (123), climbers (3), and bamboo (1) found to be ethnobotanically important. Fabaceae happened to be the dominant family in terms of ethnobotanically important plants too.

On the Genetic Affinity of Individual Tree Biomass Allometry in Poplar Short Rotation Coppice

2017 ◽  
Vol 10 (2) ◽  
pp. 525-535 ◽  
Author(s):  
N. Oliveira ◽  
R. Rodríguez-Soalleiro ◽  
C. Pérez-Cruzado ◽  
I. Cañellas ◽  
H. Sixto
Keyword(s):  
Short Rotation Coppice ◽  
Tree Biomass ◽  
Genetic Affinity ◽  
Individual Tree ◽  
Short Rotation
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