{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/113217"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/113217","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Hydrological responses to the synergistic changes in climate and land cover in the alpine pastoral region","abstract":"Quantifying the hydrological responses to climate change and land use and land cover (LULC) change is imperative for sustainable river basin management. In this study, hydrological regimes of the upper Lancang River Basin under environmental changes are assessed using a semi-distributed hydrologic model, Soil and Water Assessment Tool (SWAT). The non-parametric test is used to analyze the trend of hydro-meteorological variables based on the hydro-meteorological data time series analysis during the period of 1978 - 2014. Global Climate Models (or General Circulation Model, GCMs) under RCP 4.5 is used to assess the future climate (2021-2080); future hypothetical land-use change (2040) is predicted by Land Change Modeler (LCM). The modelling results are evaluated in four scenarios: scenario 1 with historical land use and climate, scenario 2 with the current land use and climate data from the past, scenario 3 with the current land use map and future climate, and scenario 4 with future land use and future climate. Consequently, sediment yield rises by 5.0 %, 17.9 %, and 25.9 % under scenarios 2, 3, and 4, respectively, as compared to scenario 1. The results indicate that the transition from pasture to cropland has been the topmost contributor to the increase in runoff and sediment yield, which is likely to continue to the future. Additionally, climate and land use change have a larger synergistic influence than their separate effects. This study quantitatively assesses the hydrological responses to environmental changes in an alpine pastoral area and provides supports for sustainable river basin management.","abstract_html":"Quantifying the hydrological responses to climate change and land use and land cover (LULC) change is imperative for sustainable river basin management. In this study, hydrological regimes of the upper Lancang River Basin under environmental changes are assessed using a semi-distributed hydrologic model, Soil and Water Assessment Tool (SWAT). The non-parametric test is used to analyze the trend of hydro-meteorological variables based on the hydro-meteorological data time series analysis during the period of 1978 - 2014. Global Climate Models (or General Circulation Model, GCMs) under RCP 4.5 is used to assess the future climate (2021-2080); future hypothetical land-use change (2040) is predicted by Land Change Modeler (LCM). The modelling results are evaluated in four scenarios: scenario 1 with historical land use and climate, scenario 2 with the current land use and climate data from the past, scenario 3 with the current land use map and future climate, and scenario 4 with future land use and future climate. Consequently, sediment yield rises by 5.0 %, 17.9 %, and 25.9 % under scenarios 2, 3, and 4, respectively, as compared to scenario 1. The results indicate that the transition from pasture to cropland has been the topmost contributor to the increase in runoff and sediment yield, which is likely to continue to the future. Additionally, climate and land use change have a larger synergistic influence than their separate effects. This study quantitatively assesses the hydrological responses to environmental changes in an alpine pastoral area and provides supports for sustainable river basin management.","abstract_has_math":false,"creators":["Xie, Mingyue"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Cai, Ximing"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-01-12T22:35:20Z","date_published":"2022-01-12T22:35:20Z","updated_at":"2026-07-22T22:24:53Z","subjects":["Climate change","SWAT","Land use","Land cover","NDVI","Soil erosion","Sediment yield"],"languages":["en"],"rights":["Copyright 2021 Mingyue Xie"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/113217","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cai, Ximing"]},{"key":"dc:creator","label":"Author","values":["Xie, Mingyue"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-01-12T22:35:20Z","2024-01-12T22:35:30Z","2021-07-20","2021-08"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Climate change","SWAT","Land use","Land cover","NDVI","Soil erosion","Sediment yield"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2021 Mingyue Xie"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/113217"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Quantifying the hydrological responses to climate change and land use and land cover (LULC) change is imperative for sustainable river basin management. In this study, hydrological regimes of the upper Lancang River Basin under environmental changes are assessed using a semi-distributed hydrologic model, Soil and Water Assessment Tool (SWAT). The non-parametric test is used to analyze the trend of hydro-meteorological variables based on the hydro-meteorological data time series analysis during the period of 1978 - 2014. Global Climate Models (or General Circulation Model, GCMs) under RCP 4.5 is used to assess the future climate (2021-2080); future hypothetical land-use change (2040) is predicted by Land Change Modeler (LCM). The modelling results are evaluated in four scenarios: scenario 1 with historical land use and climate, scenario 2 with the current land use and climate data from the past, scenario 3 with the current land use map and future climate, and scenario 4 with future land use and future climate. Consequently, sediment yield rises by 5.0 %, 17.9 %, and 25.9 % under scenarios 2, 3, and 4, respectively, as compared to scenario 1. The results indicate that the transition from pasture to cropland has been the topmost contributor to the increase in runoff and sediment yield, which is likely to continue to the future. Additionally, climate and land use change have a larger synergistic influence than their separate effects. This study quantitatively assesses the hydrological responses to environmental changes in an alpine pastoral area and provides supports for sustainable river basin management.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-08-01","The student, Mingyue Xie, accepted the attached license on 2021-07-19 at 11:01.","The student, Mingyue Xie, submitted this Thesis for approval on 2021-07-19 at 15:41.","This Thesis was approved for publication on 2021-07-20 at 16:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17006 on 2022-01-12 at 12:55:31","Made available in DSpace on 2022-01-12T22:35:20Z (GMT). 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In this study, hydrological regimes of the upper Lancang River Basin under environmental changes are assessed using a semi-distributed hydrologic model, Soil and Water Assessment Tool (SWAT). The non-parametric test is used to analyze the trend of hydro-meteorological variables based on the hydro-meteorological data time series analysis during the period of 1978 - 2014. Global Climate Models (or General Circulation Model, GCMs) under RCP 4.5 is used to assess the future climate (2021-2080); future hypothetical land-use change (2040) is predicted by Land Change Modeler (LCM). The modelling results are evaluated in four scenarios: scenario 1 with historical land use and climate, scenario 2 with the current land use and climate data from the past, scenario 3 with the current land use map and future climate, and scenario 4 with future land use and future climate. Consequently, sediment yield rises by 5.0 %, 17.9 %, and 25.9 % under scenarios 2, 3, and 4, respectively, as compared to scenario 1. The results indicate that the transition from pasture to cropland has been the topmost contributor to the increase in runoff and sediment yield, which is likely to continue to the future. Additionally, climate and land use change have a larger synergistic influence than their separate effects. This study quantitatively assesses the hydrological responses to environmental changes in an alpine pastoral area and provides supports for sustainable river basin management.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-08-01","The student, Mingyue Xie, accepted the attached license on 2021-07-19 at 11:01.","The student, Mingyue Xie, submitted this Thesis for approval on 2021-07-19 at 15:41.","This Thesis was approved for publication on 2021-07-20 at 16:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17006 on 2022-01-12 at 12:55:31","Made available in DSpace on 2022-01-12T22:35:20Z (GMT). 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