{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/78402"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/78402","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Spatial Variations of Drought-Induced Forest Mortality: Integrating Plant Hydraulics and Distributed Hydrology","abstract":"Ph.D.","abstract_html":"Ph.D.","abstract_has_math":false,"creators":["Tai, Xiaonan"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Mackay, David","Geography"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-10-24T19:43:58Z","date_published":"2018-10-24T19:43:58Z","updated_at":"2026-07-27T19:05:09Z","subjects":["hydrologic sciences","plant sciences","environmental science"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/78402","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mackay, David","Geography"]},{"key":"dc:creator","label":"Author","values":["Tai, Xiaonan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-10-24T19:43:58Z","2018","2018-07-03 13:56:35"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["hydrologic sciences","plant sciences","environmental science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/78402"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ph.D.","Rapidly changing environmental conditions have recently exposed woody vegetation to unusual drought and caused increased mortality in many ecosystems across the globe. It remains challenging for ecosystem models to predict plant responses to drought. The goal of this research is to identify and characterize key mechanisms necessary to predict plant vascular function and risk of mortality across the landscape. To that end, a mechanistic modeling framework was established that integrates plant hydraulics with groundwater processes. This framework has been explored across different forest ecosystems at a range of spatial scales. Results suggested that montane aspen mortality across the state of Colorado was largely influenced by soil-plant hydraulics and topographic gradients. In contrast, cottonwoods in a riparian ecosystem demonstrated strong resilience against reduced precipitation due to subsidy from stream and large floodplain storage. Application of the framework in a subalpine forest suggested that variations in plant water supply might be critical to understand the tree mortality at plot scales, and highlighted the opportunities to incorporate additional processes such as beetle attack preferences and competition. Overall, characteristics of vegetation response and spatial patterns were most revealing using an integrated framework that accounts for relevant mechanisms. This research has implications for accurate predictions of ecosystem response and forest management, particularly in the context of novel environmental conditions.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Spatial Variations of Drought-Induced Forest Mortality: Integrating Plant Hydraulics and Distributed Hydrology"]}]}],"canonical_facts":{"dc:contributor":["Mackay, David","Geography"],"dc:creator":["Tai, Xiaonan"],"dc:date":["2018-10-24T19:43:58Z","2018","2018-07-03 13:56:35"],"dc:description":["Ph.D.","Rapidly changing environmental conditions have recently exposed woody vegetation to unusual drought and caused increased mortality in many ecosystems across the globe. It remains challenging for ecosystem models to predict plant responses to drought. The goal of this research is to identify and characterize key mechanisms necessary to predict plant vascular function and risk of mortality across the landscape. To that end, a mechanistic modeling framework was established that integrates plant hydraulics with groundwater processes. This framework has been explored across different forest ecosystems at a range of spatial scales. Results suggested that montane aspen mortality across the state of Colorado was largely influenced by soil-plant hydraulics and topographic gradients. In contrast, cottonwoods in a riparian ecosystem demonstrated strong resilience against reduced precipitation due to subsidy from stream and large floodplain storage. Application of the framework in a subalpine forest suggested that variations in plant water supply might be critical to understand the tree mortality at plot scales, and highlighted the opportunities to incorporate additional processes such as beetle attack preferences and competition. Overall, characteristics of vegetation response and spatial patterns were most revealing using an integrated framework that accounts for relevant mechanisms. This research has implications for accurate predictions of ecosystem response and forest management, particularly in the context of novel environmental conditions.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/78402"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["hydrologic sciences","plant sciences","environmental science"],"dc:title":["Spatial Variations of Drought-Induced Forest Mortality: Integrating Plant Hydraulics and Distributed Hydrology"],"dc:type":["Text","Dissertation"]},"updated_at":"2026-07-27T19:05:09Z"}