A general method of parameterizing the big-leaf model to predict the dry-canopy evaporation rate of individual coniferous forest stands

AbstractVariability in soil moisture on a steep slope near a ridge in a forested mountain range, Shikoku, Japan, was studied observationally and numerically. Vertically integrated soil moisture, from a depth of −60 cm to the surface, W, was introduced as a key indicator, and its seasonal variation was analysed on a daily basis from August 2011 to August 2012. The “bucket with a bottom hole” (BBH) model of Teshima et al. (2006) was improved to consider the forest environment in simulating the variation in W. A “big-leaf” model was incorporated into the modified BBH model to estimate transpiration and interception by trees. The simulated soil moisture agreed reasonably with observed values on a daily to inter-seasonal timescale.

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A Two-Big-Leaf Model for Canopy Temperature, Photosynthesis, and Stomatal Conductance

Journal of Climate ◽

10.1175/1520-0442(2004)017<2281:atmfct>2.0.co;2 ◽

2004 ◽

Vol 17 (12) ◽

pp. 2281-2299 ◽

Cited By ~ 242

Author(s):

Yongjiu Dai ◽

Robert E. Dickinson ◽

Ying-Ping Wang

Keyword(s):

Stomatal Conductance ◽

Canopy Temperature ◽

Big Leaf Model ◽

Leaf Model

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Natural regeneration determines wintering bird presence in wind-damaged coniferous forest stands independent of postdisturbance logging

Canadian Journal of Forest Research ◽

10.1139/cjfr-2014-0501 ◽

2015 ◽

Vol 45 (9) ◽

pp. 1232-1237 ◽

Cited By ~ 3

Author(s):

Sinja A.B. Werner ◽

Jörg Müller ◽

Marco Heurich ◽

Simon Thorn

Keyword(s):

Natural Regeneration ◽

Mixed Model ◽

Linear Mixed Model ◽

Economic Value ◽

Coniferous Forest ◽

Bird Species ◽

Forest Stands ◽

Bird Abundance ◽

Coniferous Trees ◽

Mature Forest

Natural disturbances in European production forests are undesired from an economic perspective but are important drivers of biodiversity. The removal of damaged timber to restore economic value is accompanied by negative effects on various species groups, particularly breeding bird communities, and can hinder natural regeneration. However, little is known about the effect of postdisturbance logging on bird assemblages in winter when temperatures are low and food resources are unpredictable. We conducted fixed-radius point counts of wintering birds in forest stands logged or unlogged after windthrows and in mature forest stands to test our predictions that bird species densities and abundances (i) are lower in postdisturbance logged stands and (ii) depend on the amount of natural regeneration, (iii) which differs between logged and unlogged stands. Our generalized linear mixed model did not support the expected differences in bird abundance or species densities between postdisturbance logged and unlogged stands but indicated that mature forest stands harbor the highest bird abundances and species densities. The number of regenerated coniferous trees significantly positively affected wintering bird abundances in both postdisturbance logged and unlogged stands. Hence, the number of coniferous trees appears to be a main predictor of wintering bird presence.

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Simulation of interferometric SAR response to deciduous and coniferous forest stands

IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development ◽

10.1109/igarss.1997.609124 ◽

2002 ◽

Cited By ~ 5

Author(s):

K. Sarabandi ◽

Yi-Cheng Lin

Keyword(s):

Coniferous Forest ◽

Forest Stands ◽

Interferometric Sar

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METODY PROWADZENIA ODNOWIEŃ NATURALNYCH SOSNY ZWYCZAJNEJ (PINUS SYLVESTRIS L.) W NADLEŚNICTWIE SKWIERZYNA

Zarządzanie ochroną przyrody w lasach ◽

10.5604/01.3001.0014.5951 ◽

2020 ◽

Vol XIII ◽

pp. 1-1

Author(s):

Maciej Hałuszczak

Keyword(s):

Pinus Sylvestris ◽

Scots Pine ◽

Natural Regeneration ◽

Coniferous Forest ◽

Basic Method ◽

Forest Stands ◽

Clear Cutting ◽

Forest District

For many years, the Skwierzyna Forest District has been a leader among 35 units of the Regional Directorate of State Forests in Szczecin in terms of the area of the obtained natural regeneration of Scots pine. In the Skwierzyna Forest District in the period 2010-2018, 522.93 ha of natural regeneration was recognized, which constitutes 43% of the total regeneration, the habitat of fresh mixed coniferous forest and fresh coniferous forest as optimal for obtaining regeneration of the natural pine. In the spring date of plowing, the forest plow LPz-75 is applied, as the best for obtaining satisfactory self-seeding. The basic method of natural regeneration of pine in the Skwierzyna Forest Inspectorate is the use of a strip-like clear cutting (Ib) in the form of classic narrow sheds, with a cutting width of up to 60 m. It is noteworthy that in the woodcutting the under-eaves undergrowths, arising in forest stands close to the harvest, are left intact and later used within the naturally renovated area.

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