Responses of soil dissolved organic matter to long-term plantations of three coniferous tree species

Geoderma ◽  
2012 ◽  
Vol 170 ◽  
pp. 136-143 ◽  
Author(s):  
Shunbao Lu ◽  
Chengrong Chen ◽  
Xiaoqi Zhou ◽  
Zhihong Xu ◽  
Gary Bacon ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Tree Species ◽  
Coniferous Tree ◽  
Coniferous Tree Species

Admixing broadleaved to coniferous tree species: a review on yield, ecological stability and economics

2007 ◽  
Vol 127 (2) ◽  
pp. 89-101 ◽  
Author(s):  
Thomas Knoke ◽  
Christian Ammer ◽  
Bernd Stimm ◽  
Reinhard Mosandl
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Ecological Stability ◽  
Coniferous Tree Species

Pathogenicity ofHeterobasidion annosum(Fr.) Bref.sensu strictoon coniferous tree species in Turkey

2015 ◽  
Vol 46 (1) ◽  
pp. 22-28 ◽  
Author(s):  
H. T. Doğmuş-Lehtijärvi ◽  
R. C. Erdoğan ◽  
A. Lehtijärvi ◽  
S. Woodward ◽  
A. G. Aday Kaya
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Coniferous Tree Species

Improving the accuracy of tree biomass estimations for three coniferous tree species in Northeast China

Trees ◽  
2021 ◽  
Author(s):  
Longfei Xie ◽  
Liyong Fu ◽  
Faris Rafi Almay Widagdo ◽  
Lihu Dong ◽  
Fengri Li
Keyword(s):  
Tree Species ◽  
Northeast China ◽  
Coniferous Tree ◽  
Tree Biomass ◽  
Coniferous Tree Species

scholarly journals Assessing the Contribution of Seasonality, Tides, and Microbial Processing to Dissolved Organic Matter Composition Variability in a Southeastern U.S. Estuary

2021 ◽  
Vol 8 ◽  
Author(s):  
Rachel P. Martineac ◽  
Alexey V. Vorobev ◽  
Mary Ann Moran ◽  
Patricia M. Medeiros
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Critical Role ◽  
Bacterial Cells ◽  
Secondary Importance ◽  
Relative Contribution ◽  
Doc Concentration ◽  
Compositional Changes ◽  
Dom Composition

Uncovering which biogeochemical processes have a critical role controlling dissolved organic matter (DOM) compositional changes in complex estuarine environments remains a challenge. In this context, the aim of this study is to characterize the dominant patterns of variability modifying the DOM composition in an estuary off the Southeastern U.S. We collected water samples during three seasons (July and October 2014 and April 2015) at both high and low tides and conducted short- (1 day) and long-term (60 days) dark incubations. Samples were analyzed for bulk DOC concentration, and optical (CDOM) and molecular (FT-ICR MS) compositions and bacterial cells were collected for metatranscriptomics. Results show that the dominant pattern of variability in DOM composition occurs at seasonal scales, likely associated with the seasonality of river discharge. After seasonal variations, long-term biodegradation was found to be comparatively more important in the fall, while tidal variability was the second most important factor correlated to DOM composition in spring, when the freshwater content in the estuary was high. Over shorter time scales, however, the influence of microbial processing was small. Microbial data revealed a similar pattern, with variability in gene expression occurring primarily at the seasonal scale and tidal influence being of secondary importance. Our analyses suggest that future changes in the seasonal delivery of freshwater to this system have the potential to significantly impact DOM composition. Changes in residence time may also be important, helping control the relative contribution of tides and long-term biodegradation to DOM compositional changes in the estuary.

scholarly journals Analysis of the production potential of raw wood in the forests of Slovakia

2008 ◽  
Vol 54 (No. 7) ◽  
pp. 314-320
Author(s):  
R. Petráš ◽  
J. Mecko
Keyword(s):  
Tree Species ◽  
Coniferous Tree ◽  
Production Potential ◽  
Tree Species Composition ◽  
Industrial Processing ◽  
Growing Stock ◽  
Forest Condition ◽  
Broadleaved Tree Species ◽  
Broadleaved Tree ◽  
Coniferous Tree Species

Production of raw wood material and its regulation has a great ecological and economic importance in every country. The aim of the paper is to analyze the prospective production of raw wood with respect to the expected basic tree species composition and assortment structure on an example of long-term development of selected indicators of forest condition in Slovakia. For this analysis we used data on the area, growing stock and planned decennial timber felling in the forests of Slovakia in 1980, 1996 and 2003. The production potential of forests was evaluated on the basis of the annual perspective allowable cut by 2020, from which the prospective production of assortments was derived using the models of assortment yield tables of tree species. The results show that in the forests of Slovakia there is an about half proportion of coniferous and half proportion of broadleaved tree species, very good structure of growing stock as well as its trend in the last years. Production of raw wood assortments for industrial processing for the years 2010–2020 is limited by the volume 6.3–6.4 mil. m<sup>3</sup>. About one half of this volume comes from coniferous and the other half from broadleaved tree species. For coniferous tree species the proportion of spruce and fir is 87% and for broadleaved tree species the proportion of beech and oak is 80%. For coniferous tree species sawmill assortments have a decisive, almost 70% proportion. Regarding broadleaved tree species, pulpwood assortments with 47% proportion prevail, although with 11% the highest quality assortments for the production of veneer from beech and oak are also significant.

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