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Keyword: allometry

Supporting data for "Morphologic plasticity and increasing competition explain deviation from the Metabolic Scaling Theory in semi-arid conifer forests, southwestern USA"

Datasets Posted on: March 15, 2018
This data publication includes tree measurements taken 2008-2010 in three mixed conifer forests: the Pinaleño Mountains and Santa Catalina Mountains in southeastern Arizona, and the Jemez Mountains (Valles Caldera National Preserve) in northern New Mexico. Tree data measured at all locations include: species, condition, diameter at breast height and maximum vertical height.

Estimating aboveground tree biomass for beetle-killed lodgepole pine in the Rocky Mountains of northern Colorado

Publications Posted on: October 04, 2017
The recent mountain pine beetle (Dendroctonus ponderosae Hopkins) epidemic has affected millions of hectares of conifer forests in the Rocky Mountains. Land managers are interested in using biomass from beetle-killed trees for bioenergy and biobased products, but they lack adequate information to accurately estimate biomass in stands with heavy mortality.

Biomass, fuel load, and litter measurements before prescribed fire in the Shoshone mountains of Nevada

Datasets Posted on: March 27, 2015
This data publication contains measurements of biomass and fuel load data for sampled trees as well as the litter and dead parts of the trees following spring prescribed fire in the Shoshone Mountain Range of central Nevada on the Humboldt-Toiyabe National Forest in Nye and Lander Counties.

Estimating individual tree mid- and understory rank-size distributions from airborne laser scanning in semi-arid forests

Publications Posted on: October 02, 2014
Limitations inherent to airborne laser scanning (ALS) technology and the complex sorting and packing relationships of forests complicate accurate remote sensing of mid- and understory trees, especially in denser forest stands. Self-similarities in rank-sized individual tree distributions (ITD), e.g.

Allometry, nitrogen status, and carbon stable isotope composition of Pinus ponderosa seedlings in two growing media with contrasting nursery irrigation regimes

Publications Posted on: May 20, 2011
Nursery irrigation regimes that recharged container capacity when target volumetric water content reached 72%, 58%, and 44% (by volume) influenced Pinus ponderosa Douglas ex Lawson & C. Lawson growth more than either a 1:1 (by volume) Sphagnum peat - vermiculite (PV) or a 7:3 (by volume) Sphagnum peat - sawdust (PS) medium. Exponential fertilization avoided confounding irrigation and fertilization.

A structurally based analytic model for estimation of biomass and fuel loads of woodland trees

Publications Posted on: November 24, 2009
Allometric/structural relationships in tree crowns are a consequence of the physical, physiological, and fluid conduction processes of trees, which control the distribution, efficient support, and growth of foliage in the crown. The structural consequences of these processes are used to develop an analytic model based on the concept of branch orders.

The density effect: Red/far red signaling and douglas-fir seedling growth in a variable density field test

Publications Posted on: September 29, 2008
Coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings, when planted in a reforestation setting, exhibit early height and diameter growth that is inversely proportional to planting density. One hypothesis to explain this observation is that they are able to detect the presence of nearby trees using phytochrome by sensing the ratio of red to far red light (R/FR) reflected from their crowns.