{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/124361"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/124361","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A unified framework of modeling transpiration responses to water stress in the US Midwest","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","abstract_has_math":false,"creators":["Yang, Yi"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Natural Res & Env Sciences","degree_department":null,"school":null,"contributors":["Guan, Kaiyu","Dominguez, Francina","Sivapalan, Murugesu","Xu, Xiangtao","Pan, Ming"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-05","date_published":"2024-05","updated_at":"2026-07-22T22:25:00Z","subjects":["Plant Water Stress","Hydrological Modeling","Soil Moisture Dynamics","Model-data Integration"],"languages":["en","eng"],"rights":["Copyright 2024 Yi Yang"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/124361","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Guan, Kaiyu","Dominguez, Francina","Sivapalan, Murugesu","Xu, Xiangtao","Pan, Ming"]},{"key":"dc:creator","label":"Author","values":["Yang, Yi"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-05","2024-04-23"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Res & Env Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Plant Water Stress","Hydrological Modeling","Soil Moisture Dynamics","Model-data Integration"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Yi Yang"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/124361"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Yi Yang, accepted the attached license on 2024-04-22 at 13:05.","The student, Yi Yang, submitted this Dissertation for approval on 2024-04-22 at 13:13.","This Dissertation was approved for publication on 2024-04-23 at 16:52.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20540 on 2024-09-16 at 00:35:45","Plant responses to water stress have been a major uncertainty in predicting terrestrial ecosystem sensitivity to drought. Different theories have been developed to model plant water stress. However, the relationships between these approaches, and their underlying connections to ecohydrologic processes, are not sufficiently understood. In this dissertation, I first proposed a unified theoretical framework in Chapter 2 that reconciles the relationships between different theories and helps identify the water stress characteristics and the most efficient modeling approach for different environmental conditions. Using the framework, I found that empirical approaches of modeling plant water stress are special cases of the full plant hydraulic model. With three case studies across a spectrum of dryness regimes, I evaluated the necessity of incorporating the complexities involved in the hydraulic processes in plant hydraulics models and proposed different modeling strategies for different environments. In Chapter 3, I then applied the above framework specifically to the US Midwest and demonstrated the importance of plant hydraulic transport in crop responses to severe atmospheric dryness. In Chapter 4, I investigated the monitoring of a critical stress factor, soil moisture, at within-field levels using extensive fieldwork and satellite data, thus informing a new integrative approach for high-resolution soil moisture estimation. Finally, in Chapter 5, I used the state-of-the-art satellite evapotranspiration data to constrain and improve land surface modeling at high resolutions. This dissertation contributes to an improved understanding of plant water stress and better monitoring and management of a more sustainable agroecosystem."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["A unified framework of modeling transpiration responses to water stress in the US Midwest"]}]}],"canonical_facts":{"dc:contributor":["Guan, Kaiyu","Dominguez, Francina","Sivapalan, Murugesu","Xu, Xiangtao","Pan, Ming"],"dc:creator":["Yang, Yi"],"dc:date":["2024-05","2024-04-23"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Yi Yang, accepted the attached license on 2024-04-22 at 13:05.","The student, Yi Yang, submitted this Dissertation for approval on 2024-04-22 at 13:13.","This Dissertation was approved for publication on 2024-04-23 at 16:52.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20540 on 2024-09-16 at 00:35:45","Plant responses to water stress have been a major uncertainty in predicting terrestrial ecosystem sensitivity to drought. Different theories have been developed to model plant water stress. However, the relationships between these approaches, and their underlying connections to ecohydrologic processes, are not sufficiently understood. In this dissertation, I first proposed a unified theoretical framework in Chapter 2 that reconciles the relationships between different theories and helps identify the water stress characteristics and the most efficient modeling approach for different environmental conditions. Using the framework, I found that empirical approaches of modeling plant water stress are special cases of the full plant hydraulic model. With three case studies across a spectrum of dryness regimes, I evaluated the necessity of incorporating the complexities involved in the hydraulic processes in plant hydraulics models and proposed different modeling strategies for different environments. In Chapter 3, I then applied the above framework specifically to the US Midwest and demonstrated the importance of plant hydraulic transport in crop responses to severe atmospheric dryness. In Chapter 4, I investigated the monitoring of a critical stress factor, soil moisture, at within-field levels using extensive fieldwork and satellite data, thus informing a new integrative approach for high-resolution soil moisture estimation. Finally, in Chapter 5, I used the state-of-the-art satellite evapotranspiration data to constrain and improve land surface modeling at high resolutions. This dissertation contributes to an improved understanding of plant water stress and better monitoring and management of a more sustainable agroecosystem."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/124361"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Yi Yang"],"dc:subject":["Plant Water Stress","Hydrological Modeling","Soil Moisture Dynamics","Model-data Integration"],"dc:title":["A unified framework of modeling transpiration responses to water stress in the US Midwest"],"dc:type":["text"],"thesis:degree_discipline":["Natural Res & Env Sciences"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}