Evaluation of the Reference Unit Method for Herbaceous Biomass Estimation in Native Grasslands of Southwestern South Dakota PDF Download
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Author: Eric D. Boyda
Publisher:
ISBN:
Category : Biomass energy
Languages : en
Pages : 204
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Book Description
Author: Eric D. Boyda
Publisher:
ISBN:
Category : Biomass energy
Languages : en
Pages : 204
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Book Description
Author: Sam Dwire
Publisher:
ISBN:
Category : Spartina
Languages : en
Pages : 234
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Book Description
Author: Abigail Davis
Publisher:
ISBN:
Category : Plant biomass
Languages : en
Pages : 100
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723420658
Category :
Languages : en
Pages : 28
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Book Description
Rangeland biomass data were correlated with spectral vegetation indices, derived from LANDSAT MSS data. LANDSAT data from five range and three other land use sites in Willacv and Cameron Counties were collected on October 17 and December 10, 1975, and on July 31 and September 23, 1976. The overall linear correlation of total standing herbaceous biomass with the LANDSAT derived perpendicular vegetation index was highly significant (r = 0.90**) for these four dates. The standard error of estimate was 722 kg/ha. Biomass data were recorded for two of these range sites for 8 months (March through October) during the 1976 growing season. Standing green biomass accounted for most of the increase in herbage, starting in June and ending about September and October. These results indicate that satellite data may be useful for the estimation of total standing herbaceous biomass production that could aid range managers in assessing range condition and animal carrying capacities of large and inaccessible range holdings. Richardson, A. J. and Everitt, J. H. and Wiegand, C. L. (Principal Investigator) Unspecified Center E83-10045, NASA-CR-169606, EW-U2-04320, JSC-18255, NAS 1.26:169606 PROJ. AGRISTARS
Author: Gregg Roger Johnson
Publisher:
ISBN:
Category : Forage
Languages : en
Pages : 222
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Author: Gregg Roger Johnson
Publisher:
ISBN:
Category :
Languages : en
Pages : 222
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Author: Alberta Remote Sensing Center
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048796
Category : Technology & Engineering
Languages : en
Pages : 201
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Book Description
Rangelands comprise between 40 and 50 percent of all U.S. land and serve the nation both as productive areas for wildlife, recreational use, and livestock grazing and as watersheds. The health and management of rangelands have been matters for scientific inquiry and public debate since the 1880s, when reports of widespread range degradation and livestock losses led to the first attempts to inventory and classify rangelands. Scientists are now questioning the utility of current methods of rangeland classification and inventory, as well as the data available to determine whether rangelands are being degraded. These experts, who are using the same methods and data, have come to different conclusions. This book examines the scientific basis of methods used by federal agencies to inventory, classify, and monitor rangelands; it assesses the success of these methods; and it recommends improvements. The book's findings and recommendations are of interest to the public; scientists; ranchers; and local, state, and federal policymakers.
Author: Paul R. Adamus
Publisher:
ISBN:
Category : Biodiversity conservation
Languages : en
Pages : 224
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Author: Robert A. Gleason
Publisher: Geological Survey (USGS)
ISBN:
Category : Nature
Languages : en
Pages : 74
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