{"title":"艾尔湖盆地景观:创造河流多样性的流域尺度背景","authors":"G. Wakelin-King","doi":"10.1080/03721426.2021.2003514","DOIUrl":null,"url":null,"abstract":"ABSTRACT Lake Eyre Basin (LEB) rivers are important but under-researched. This study integrates published and new information into a systematic geomorphological overview, subdividing the LEB into nine landscape zones: basin-margin Uplands with relatively high-energy rivers; Rocky Fringe, piedmont with short rivers and floodouts; Western Rivers, notable for neotectonism and stream capture; low-relief Northern Plains drainages and floodouts; Central Plains dunefield; Channel Country-Vertic Downs, cracking-clay interfluves and valley macrochannels; Channel Country-Stony Domes, rocky or sandy interfluves and complex macrochannels; Lakes & Dunes maintained by saline groundwater; and playas in the Mega-lakes. Zone boundary GIS datasets are available. LEB rivers are shown to be diverse and distinctive, indicating a need for locally relevant knowledge in management and monitoring. Fluvial landform suites include sand-bed rivers, macrochannels hosting coexisting anabranching and anastomosing systems in vertic floodplains, floodouts, low-angle alluvial fans, and three types of waterhole. Channels may be discontinuous or not present; floodplains can dominate flow transmission. Contributing hillslopes are heterogenous in their capacity to generate runoff, while drainage networks may have low to high degrees of integration. Management implications include the importance of in-river terrestrial ecosystems and “patchy” drainage networks, and the inapplicability of some morphometric practices.","PeriodicalId":49425,"journal":{"name":"Transactions of the Royal Society of South Australia","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Landscapes of the Lake Eyre Basin: the catchment-scale context that creates fluvial diversity\",\"authors\":\"G. Wakelin-King\",\"doi\":\"10.1080/03721426.2021.2003514\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT Lake Eyre Basin (LEB) rivers are important but under-researched. This study integrates published and new information into a systematic geomorphological overview, subdividing the LEB into nine landscape zones: basin-margin Uplands with relatively high-energy rivers; Rocky Fringe, piedmont with short rivers and floodouts; Western Rivers, notable for neotectonism and stream capture; low-relief Northern Plains drainages and floodouts; Central Plains dunefield; Channel Country-Vertic Downs, cracking-clay interfluves and valley macrochannels; Channel Country-Stony Domes, rocky or sandy interfluves and complex macrochannels; Lakes & Dunes maintained by saline groundwater; and playas in the Mega-lakes. Zone boundary GIS datasets are available. LEB rivers are shown to be diverse and distinctive, indicating a need for locally relevant knowledge in management and monitoring. Fluvial landform suites include sand-bed rivers, macrochannels hosting coexisting anabranching and anastomosing systems in vertic floodplains, floodouts, low-angle alluvial fans, and three types of waterhole. Channels may be discontinuous or not present; floodplains can dominate flow transmission. Contributing hillslopes are heterogenous in their capacity to generate runoff, while drainage networks may have low to high degrees of integration. Management implications include the importance of in-river terrestrial ecosystems and “patchy” drainage networks, and the inapplicability of some morphometric practices.\",\"PeriodicalId\":49425,\"journal\":{\"name\":\"Transactions of the Royal Society of South Australia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2022-01-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transactions of the Royal Society of South Australia\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1080/03721426.2021.2003514\",\"RegionNum\":4,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of the Royal Society of South Australia","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1080/03721426.2021.2003514","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Landscapes of the Lake Eyre Basin: the catchment-scale context that creates fluvial diversity
ABSTRACT Lake Eyre Basin (LEB) rivers are important but under-researched. This study integrates published and new information into a systematic geomorphological overview, subdividing the LEB into nine landscape zones: basin-margin Uplands with relatively high-energy rivers; Rocky Fringe, piedmont with short rivers and floodouts; Western Rivers, notable for neotectonism and stream capture; low-relief Northern Plains drainages and floodouts; Central Plains dunefield; Channel Country-Vertic Downs, cracking-clay interfluves and valley macrochannels; Channel Country-Stony Domes, rocky or sandy interfluves and complex macrochannels; Lakes & Dunes maintained by saline groundwater; and playas in the Mega-lakes. Zone boundary GIS datasets are available. LEB rivers are shown to be diverse and distinctive, indicating a need for locally relevant knowledge in management and monitoring. Fluvial landform suites include sand-bed rivers, macrochannels hosting coexisting anabranching and anastomosing systems in vertic floodplains, floodouts, low-angle alluvial fans, and three types of waterhole. Channels may be discontinuous or not present; floodplains can dominate flow transmission. Contributing hillslopes are heterogenous in their capacity to generate runoff, while drainage networks may have low to high degrees of integration. Management implications include the importance of in-river terrestrial ecosystems and “patchy” drainage networks, and the inapplicability of some morphometric practices.
期刊介绍:
Published since 1880, the Transactions of the Royal Society of South Australia is a multidisciplinary journal that aims to publish high quality, peer-reviewed papers of particular relevance to Australasia.
There is a particular focus on natural history topics such as: botany, zoology, geology, geomorphology, palaeontology, meteorology, geophysics, biophysics, soil science and environmental science, and environmental health. However, the journal is not restricted to these fields, with papers concerning epidemiology, ethnology, anthropology, linguistics, and the history of science and exploration also welcomed.
Submissions are welcome from all authors, and membership of the Royal Society of South Australia is not required.
The following types of manuscripts are welcome: Reviews, Original Research Papers, History of Science and Exploration, Brief Communications, Obituaries.