Search Results - "Shugart, H.H"

Characterizing 3D vegetation structure from space: Mission requirements by Hall, Forrest G., Bergen, Kathleen, Blair, James B., Dubayah, Ralph, Houghton, Richard, Hurtt, George, Kellndorfer, Josef, Lefsky, Michael, Ranson, Jon, Saatchi, Sasan, Shugart, H.H., Wickland, Diane

“…Human and natural forces are rapidly modifying the global distribution and structure of terrestrial ecosystems on which all of life depends, altering the…”
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SIBBORK: A new spatially-explicit gap model for boreal forest by Brazhnik, Ksenia, Shugart, H.H.

“…•SIBBORK was parameterized with forestry yield tables & environmental datasets.•SIBBORK simulates individual trees in 3-dimensional space on real…”
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Remote sensing of structural complexity indices for habitat and species distribution modeling by Estes, L.D., Reillo, P.R., Mwangi, A.G., Okin, G.S., Shugart, H.H.

“…Spatial distribution models are increasingly used in ecological studies, but are limited by the poor accuracy of remote sensing (RS) for mapping microhabitat…”
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Surface Lidar Remote Sensing of Basal Area and Biomass in Deciduous Forests of Eastern Maryland, USA by Lefsky, Michael A, Harding, D, Cohen, W.B, Parker, G, Shugart, H.H

“…A method of predicting two forest stand structure attributes, basal area and aboveground biomass, from measurements of forest vertical structure was developed…”
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Nutrient limitations on understory grass productivity and carbon assimilation in an African woodland savanna by Ries, L.P., Shugart, H.H.

“…Despite the ubiquity of sub-tropical savannas throughout the earth, limitations of savanna productivity are understudied relative to other terrestrial systems…”
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Trends in savanna structure and composition along an aridity gradient in the Kalahari by Scholes, R.J., Dowty, P.R., Caylor, K., Parsons, D.A.B., Frost, P.G.H., Shugart, H.H.

“… The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep aeolian soils, and a strong south to north…”
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Relationship between small-scale structural variability and simulated vegetation productivity across a regional moisture gradient in southern Africa by Caylor, K.K, Dowty, P.R, Shugart, H.H, Ringrose, S

“…The observed variability in vegetation structure within landscapes was used as the basis for model estimates of the range of annual productivity of landscape…”
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How the earthquake bird got its name and other tales of an unbalanced nature by Shugart, H. H

“…Although people have been altering earth's landscapes to some extent for tens of thousands of years, humankind today is causing massive changes to the planet…”
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Model sensitivity to spatial resolution and explicit light representation for simulation of boreal forests in complex terrain by Brazhnik, Ksenia, Shugart, H.H.

“…•In gap model simulations, spatial resolution (plot size) must be congruent with average size of dominant tree canopy in order to convey gap dynamics..•100m2…”
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Carbon and nitrogen in the soil–plant system along rainfall and land-use gradients in southern Africa by Feral, C.J.W, Epstein, H.E, Otter, L, Aranibar, J.N, Shugart, H.H, Macko, S.A, Ramontsho, J

“…We examined relationships between vegetation and soil nutrients along rainfall and land use gradients in the Kalahari. Soil organic carbon (SOC) was…”
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SAFARI-2000 characterization of fuels, fire behavior, combustion completeness, and emissions from experimental burns in infertile grass savannas in western Zambia by Hély, C, Alleaume, S, Swap, R.J, Shugart &, H.H, Justice, C.O

“…Fires in African savannas produce emissions contributing to changes in global biogeochemical processes. In the Southern African Regional Science Initiative…”
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Integrating Forest Structural Diversity Measurement Into Ecological Research by Atkins, Jeff W., Bhatt, Parth, Carrasco, Luis, Francis, Emily, Garabedian, James E., Hakkenberg, Christopher R., Hardiman, Brady S., Jung, Jinha, Koirala, Anil, LaRue, Elizabeth A., Oh, Sungchan, Shao, Gang, Shao, Guofan, Shugart, H.H., Spiers, Anna, Stovall, Atticus E L, Surasinghe, Thilina D., Tai, Xiaonan, Zhai, Lu, Zhang, Tao, Krause, Keith

“…The measurement of forest structure has evolved steadily due to advances in technology, methodology, and theory. Such advances have greatly increased our…”
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NASA and Russian scientists observe land-cover and land-use change and carbon in Russian forests by Bergen, K.M, Conard, S.G, Houghton, R.A, Kasischke, E.S, Kharuk, V.I, Krankina, O.N, Ranson, K.J, Shugart, H.H, Sukhinin, A.I, Treyfeld, R.F

“…Abstract In 1997, several project teams of the NASA Land-Cover Land-Use Change Program began working with Russian organizations to try to quantify and…”
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Gap model development, validation, and application to succession of secondary subtropical dry forests of Puerto Rico by Holm, Jennifer A., Shugart, H.H., Van Bloem, S.J., Larocque, G.R.

“…► We developed the new gap model ZELIG-TROP to simulate a dry tropical forest. ► ZELIG-TROP was parameterized with species and site/environmental specific…”
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Nitrogen cycling in the soil-plant system along a precipitation gradient in the Kalahari sands by Aranibar, J.N, Otter, L, Macko, S.A, Feral, C.J.W, Epstein, H.E, Dowty, P.R, Eckardt, F, Shugart, H.H, Swap, R.J

“…Nitrogen (N) cycling was analyzed in the Kalahari region of southern Africa, where a strong precipitation gradient (from 978 to 230 mm mean annual…”
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Habitat selection by a rare forest antelope: A multi-scale approach combining field data and imagery from three sensors by Estes, L.D., Okin, G.S., Mwangi, A.G., Shugart, H.H.

“…It can be difficult to further scientific understanding of rare or endangered species that live in inaccessible habitat using traditional methods, such as…”
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Reconstructing disturbance history using satellite-based assessment of the distribution of land cover in the Russian Far East by LOBODA, T. V, ZHANG, Z, O'NEAL, K. J, SUN, G, CSISZAR, I. A, SHUGART, H. H, SHERMAN, N. J

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Forest Succession Models by Shugart, H. H., West, D. C.

“…Models of forest dynamics and particularly of forest succession have been in development for the past decade. The models can be used to explore both practical…”
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Age, and radial growth dynamics of Pterocarpus angolensis in southern Africa by Therrell, Matthew D., Stahle, David W., Mukelabai, Mukufute M., Shugart, Herman H.

“…Pterocarpus angolensis D.C. is a highly valuable and sought after timber species across much of its range in southern Africa. Attempts at plantation…”
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Insights into nitrogen and carbon dynamics of ectomycorrhizal and saprotrophic fungi from isotopic evidence by Hobbie, E.A, Macko, S.A, Shugart, H.H

“…The successful use of natural abundances of carbon (C) and nitrogen (N) isotopes in the study of ecosystem dynamics suggests that isotopic measurements could…”
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