2026-09-18T20:30:53Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1222332021-07-05T14:03:20Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Dara Entekhabi.
Chulakadabba, Apisada.
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering.
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
n-usp--
2019-09-17T19:49:07Z
2019-09-17T19:49:07Z
2019
2019
https://hdl.handle.net/1721.1/122233
1119388933
Thesis: S.B., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 37-38).
In this study, the relationships among plant water and carbon flux responses to soil moisture resource pulses in semi-arid lands of the Western United States were diagnosed. Measurements from twelve AmeriFlux tower (in situ) and SMAP (satellite) sites across the region were used to estimate relationships between carbon flux and resource availability. The differences between respiration and photosynthesis dominant regimes and the transition from water to energy limited regimes could be observed. Water use efficiency of plants in the regions was estimated to be around 5.0 grams of carbon dioxide per 1 kilograms of water when water was excess. Response patterns were shared among the similar ecosystems. The role of water and carbon flux response to intermittency resource availability could lead to improved estimation of land carbon budgets.
by Apisada Chulakadabba.
S.B.
S.B. Massachusetts Institute of Technology, Department of Civil and Environmental Engineering
58 pages
eng
Massachusetts Institute of Technology
MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.
http://dspace.mit.edu/handle/1721.1/7582
Civil and Environmental Engineering.
Water and carbon flux responses to soil moisture pulses in the Western United States
Thesis
application/pdf
2019-09-17T19:49:05Z
Publication
Bachelor
CivEng
unknown
unknown
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<Abstract>In this study, the relationships among plant water and carbon flux responses to soil moisture resource pulses in semi-arid lands of the Western United States were diagnosed. Measurements from twelve AmeriFlux tower (in situ) and SMAP (satellite) sites across the region were used to estimate relationships between carbon flux and resource availability. The differences between respiration and photosynthesis dominant regimes and the transition from water to energy limited regimes could be observed. Water use efficiency of plants in the regions was estimated to be around 5.0 grams of carbon dioxide per 1 kilograms of water when water was excess. Response patterns were shared among the similar ecosystems. The role of water and carbon flux response to intermittency resource availability could lead to improved estimation of land carbon budgets.</Abstract>
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