globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50791
论文题名:
Ecosystem-scale measurements of biomass water using cosmic ray neutrons
作者: Franz T.E.; Zreda M.; Rosolem R.; Hornbuckle B.K.; Irvin S.L.; Adams H.; Kolb T.E.; Zweck C.; Shuttleworth W.J.
刊名: Geophysical Research Letters
ISSN: 0094-8737
EISSN: 1944-8468
出版年: 2013
卷: 40, 期:15
起始页码: 3929
结束页码: 3933
语种: 英语
英文关键词: biomass ; cosmic ray neutrons ; large scale
Scopus关键词: Continuous measurements ; Cosmic ray neutron ; Direct observations ; Global carbon cycle ; large scale ; Ponderosa pine forest ; Scientific discipline ; Water equivalent ; Cosmic ray measurement ; Cosmic rays ; Ecosystems ; Energy transfer ; Estimation ; Neutrons ; Uncertainty analysis ; Biomass ; agricultural land ; biomass ; carbon cycle ; cosmic ray ; estimation method ; experimental study ; forest ecosystem ; global change ; maize ; mass transfer ; nondestructive testing ; Zea mays
英文摘要: Accurate estimates of biomass are imperative for understanding the global carbon cycle. However, measurements of biomass and water in the biomass are difficult to obtain at a scale consistent with measurements of mass and energy transfer, ∼1 km, leading to substantial uncertainty in dynamic global vegetation models. Here we use a novel cosmic ray neutron method to estimate a stoichiometric predictor of ecosystem-scale biomass and biomass water equivalent over tens of hectares. We present two experimental studies, one in a ponderosa pine forest and the other in a maize field, where neutron-derived estimates of biomass water equivalent are compared and found consistent with direct observations. Given the new hectometer scale of nondestructive observation and potential for continuous measurements, we anticipate this technique to be useful to many scientific disciplines. © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881272636&doi=10.1002%2fgrl.50791&partnerID=40&md5=1e27c524203e8a132b6ea676ff5874d0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6001
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作者单位: University of Arizona, Department of Hydrology and Water Resources, 1133 E. James E. Rogers Way, Tucson, AZ 85721, United States

Recommended Citation:
Franz T.E.,Zreda M.,Rosolem R.,et al. Ecosystem-scale measurements of biomass water using cosmic ray neutrons[J]. Geophysical Research Letters,2013-01-01,40(15).
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