Guillermo Barrientos, Rafael Rubilar, Efrain Duarte, Alberto Paredes
{"title":"智利中南部集水区干旱期间的径流变化和逐渐干旱现象","authors":"Guillermo Barrientos, Rafael Rubilar, Efrain Duarte, Alberto Paredes","doi":"10.2166/nh.2023.116","DOIUrl":null,"url":null,"abstract":"<div><div data- reveal-group-><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"hydrology-d-23-00116gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div></div><div content- data-reveal=\"data-reveal\"><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"hydrology-d-23-00116gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div><i> </i><span>Close modal</span></div></div><p>Persistent drought events frequently intensify the aridity of ecosystems and cause catchment runoff depletion. Here, using large and long-term data sets of meteorological and hydrologic variables (precipitation, runoff, temperature, and potential evapotranspiration) investigated the major causes that modulated catchment runoff depletion between the years 1980 and 2020 in southern-central Chile. We identified the hydrological years where aridity index intensified, analyzed its relationship with annual runoff, and evaluated the effect of the annual evaporation index and annual aridity index on water balance of 44 catchments with different precipitation regimes located between 35° and 40°S. Our results showed that observed precipitation and runoff significantly decreased between 1980 and 2020 in 64% of the catchments in the study area. Potential evapotranspiration increased significantly in 39% of the catchments. Hydrological years in which precipitation decreased showed a decreased runoff trend. This result suggests that meteorological droughts tend to significantly decrease observed runoff. The runoff value decreased as the aridity index increased from 0.3 to 6.7, and the Budyko curve captured 98.5% of the annual variability of all catchments.</p>","PeriodicalId":13096,"journal":{"name":"Hydrology Research","volume":"127 1","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Runoff variation and progressive aridity during drought in catchments in southern-central Chile\",\"authors\":\"Guillermo Barrientos, Rafael Rubilar, Efrain Duarte, Alberto Paredes\",\"doi\":\"10.2166/nh.2023.116\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div data- reveal-group-><div><img alt=\\\"graphic\\\" data-src=\\\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\\\" path-from-xml=\\\"hydrology-d-23-00116gf01.tif\\\" src=\\\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\\\"/><div>View largeDownload slide</div></div></div><div content- data-reveal=\\\"data-reveal\\\"><div><img alt=\\\"graphic\\\" data-src=\\\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\\\" path-from-xml=\\\"hydrology-d-23-00116gf01.tif\\\" src=\\\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.116/1/m_hydrology-d-23-00116gf01.png?Expires=1706803564&Signature=OPSxnnGpTKnr0DgO74MSqejQhZm38GWXHZdPQD7yeLuyfnSKEfXOyuXmSLrHInBbcy~El0OE~9BUr-8kLFvMfeUjy2zXFyekW4ZHLrXd2-UuvJ23FqmrOsp0TNLmljmMiUR13ZtK81Tpj82RhPvRIbX3lO7YCzSdl4pZRLG7vr-fHMNJYEqfbjhJ9tN0YLdREYwD31QDHqhuRl-f5c3Yqy7ZGKufRKObPGeB7azTLTCWsbocprLlyXi056yrGr07aons3IDO0fyyFr~rwrTHxg6FGqHON7Wtx3EnLuhFkLXF5d1JpiYmT-XCttb-8UgfwPMjGTjZ~KbfoUJucD9yZw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\\\"/><div>View largeDownload slide</div></div><i> </i><span>Close modal</span></div></div><p>Persistent drought events frequently intensify the aridity of ecosystems and cause catchment runoff depletion. Here, using large and long-term data sets of meteorological and hydrologic variables (precipitation, runoff, temperature, and potential evapotranspiration) investigated the major causes that modulated catchment runoff depletion between the years 1980 and 2020 in southern-central Chile. We identified the hydrological years where aridity index intensified, analyzed its relationship with annual runoff, and evaluated the effect of the annual evaporation index and annual aridity index on water balance of 44 catchments with different precipitation regimes located between 35° and 40°S. Our results showed that observed precipitation and runoff significantly decreased between 1980 and 2020 in 64% of the catchments in the study area. Potential evapotranspiration increased significantly in 39% of the catchments. Hydrological years in which precipitation decreased showed a decreased runoff trend. This result suggests that meteorological droughts tend to significantly decrease observed runoff. The runoff value decreased as the aridity index increased from 0.3 to 6.7, and the Budyko curve captured 98.5% of the annual variability of all catchments.</p>\",\"PeriodicalId\":13096,\"journal\":{\"name\":\"Hydrology Research\",\"volume\":\"127 1\",\"pages\":\"\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2023-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hydrology Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.2166/nh.2023.116\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"WATER RESOURCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrology Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.2166/nh.2023.116","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"WATER RESOURCES","Score":null,"Total":0}
Runoff variation and progressive aridity during drought in catchments in southern-central Chile
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Persistent drought events frequently intensify the aridity of ecosystems and cause catchment runoff depletion. Here, using large and long-term data sets of meteorological and hydrologic variables (precipitation, runoff, temperature, and potential evapotranspiration) investigated the major causes that modulated catchment runoff depletion between the years 1980 and 2020 in southern-central Chile. We identified the hydrological years where aridity index intensified, analyzed its relationship with annual runoff, and evaluated the effect of the annual evaporation index and annual aridity index on water balance of 44 catchments with different precipitation regimes located between 35° and 40°S. Our results showed that observed precipitation and runoff significantly decreased between 1980 and 2020 in 64% of the catchments in the study area. Potential evapotranspiration increased significantly in 39% of the catchments. Hydrological years in which precipitation decreased showed a decreased runoff trend. This result suggests that meteorological droughts tend to significantly decrease observed runoff. The runoff value decreased as the aridity index increased from 0.3 to 6.7, and the Budyko curve captured 98.5% of the annual variability of all catchments.
期刊介绍：
Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.
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