Change Analysis of Karst Landforms, Hydrogeological Conditions and Effects of Tunnel Excavation on Groundwater Environment in Three Topography Grades in China
One-third of the Earth in China is formed by Karst topography, which exposes different Karst landforms in three topography grades from southeast to northwest, corresponding to below several hundred meters for the first grade, one to two thousand meters for the second grade, and more than 4000 m for...
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| Veröffentlicht in: | Water (Basel) 2023-01, Vol.15 (1), p.207 |
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| creator | Tang, Yige Zhang, Qiang Qi, Jihong Xu, Mo Li, Xiao Qu, Chenhao Yi, Lei Wang, Dong |
| description | One-third of the Earth in China is formed by Karst topography, which exposes different Karst landforms in three topography grades from southeast to northwest, corresponding to below several hundred meters for the first grade, one to two thousand meters for the second grade, and more than 4000 m for the in Qinghai-Tibet Plateau. Through the hydrochemical and D-18O stable isotopes of 64 water samples collected along two railway lines and the topography fractal characteristics of three typical Karst areas in different topography grades, the changes in Karst development degree, changes in groundwater activities, and the influence of tunnel excavation effects on groundwater environment were analyzed. The results indicated that: (1) the Karst development degree and the influence of Karst tunnel excavation on the groundwater environment are somehow similar in the first and second grades, while there are significant differences between the slopes area from second to third grade and the third grade area. (2) In detail, the relatively weaker Karst development degree and flow seeping in the second grade relatively weaken the influences of tunnel excavation, including the distribution pattern of water resources, the groundwater flow field, and water circulation, while the tunnel elevation has little room to rise. (3) There are many large faults in the north-southward direction in the third topography grade, and the transportation lines in the eastern-western direction will inevitably encounter them. In the intersection area, the tunnel excavation has great effects on the groundwater environment. (4) The lighter hydrogen and oxygen isotopes are enriched in Karst water from the first grade to the third grade, indicating that the recharge source of Karst water presents obvious elevation effect. |
| doi_str_mv | 10.3390/w15010207 |
| format | Article |
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Through the hydrochemical and D-18O stable isotopes of 64 water samples collected along two railway lines and the topography fractal characteristics of three typical Karst areas in different topography grades, the changes in Karst development degree, changes in groundwater activities, and the influence of tunnel excavation effects on groundwater environment were analyzed. The results indicated that: (1) the Karst development degree and the influence of Karst tunnel excavation on the groundwater environment are somehow similar in the first and second grades, while there are significant differences between the slopes area from second to third grade and the third grade area. (2) In detail, the relatively weaker Karst development degree and flow seeping in the second grade relatively weaken the influences of tunnel excavation, including the distribution pattern of water resources, the groundwater flow field, and water circulation, while the tunnel elevation has little room to rise. (3) There are many large faults in the north-southward direction in the third topography grade, and the transportation lines in the eastern-western direction will inevitably encounter them. In the intersection area, the tunnel excavation has great effects on the groundwater environment. (4) The lighter hydrogen and oxygen isotopes are enriched in Karst water from the first grade to the third grade, indicating that the recharge source of Karst water presents obvious elevation effect.</description><identifier>ISSN: 2073-4441</identifier><identifier>EISSN: 2073-4441</identifier><identifier>DOI: 10.3390/w15010207</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Altitude ; Analysis ; Aquatic resources ; Aquifers ; China ; Elevation ; Excavation ; Fractals ; Geology ; Groundwater ; Groundwater flow ; Hydrogeology ; Hydrology ; Isotopes ; Karst ; Landforms ; Lithology ; Morphology ; Oxygen enrichment ; Oxygen isotopes ; Rivers ; Stable isotopes ; Topography ; Tunnels ; United Kingdom ; Water analysis ; Water circulation ; Water flow ; Water resources ; Water sampling ; Water, Underground</subject><ispartof>Water (Basel), 2023-01, Vol.15 (1), p.207</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c331t-618a9be936702b3b7c44fc3035f8a4f5a84440649cdbf03c9e46e1450b5015c43</citedby><cites>FETCH-LOGICAL-c331t-618a9be936702b3b7c44fc3035f8a4f5a84440649cdbf03c9e46e1450b5015c43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,782,786,27933,27934</link.rule.ids></links><search><creatorcontrib>Tang, Yige</creatorcontrib><creatorcontrib>Zhang, Qiang</creatorcontrib><creatorcontrib>Qi, Jihong</creatorcontrib><creatorcontrib>Xu, Mo</creatorcontrib><creatorcontrib>Li, Xiao</creatorcontrib><creatorcontrib>Qu, Chenhao</creatorcontrib><creatorcontrib>Yi, Lei</creatorcontrib><creatorcontrib>Wang, Dong</creatorcontrib><title>Change Analysis of Karst Landforms, Hydrogeological Conditions and Effects of Tunnel Excavation on Groundwater Environment in Three Topography Grades in China</title><title>Water (Basel)</title><description>One-third of the Earth in China is formed by Karst topography, which exposes different Karst landforms in three topography grades from southeast to northwest, corresponding to below several hundred meters for the first grade, one to two thousand meters for the second grade, and more than 4000 m for the in Qinghai-Tibet Plateau. Through the hydrochemical and D-18O stable isotopes of 64 water samples collected along two railway lines and the topography fractal characteristics of three typical Karst areas in different topography grades, the changes in Karst development degree, changes in groundwater activities, and the influence of tunnel excavation effects on groundwater environment were analyzed. The results indicated that: (1) the Karst development degree and the influence of Karst tunnel excavation on the groundwater environment are somehow similar in the first and second grades, while there are significant differences between the slopes area from second to third grade and the third grade area. (2) In detail, the relatively weaker Karst development degree and flow seeping in the second grade relatively weaken the influences of tunnel excavation, including the distribution pattern of water resources, the groundwater flow field, and water circulation, while the tunnel elevation has little room to rise. (3) There are many large faults in the north-southward direction in the third topography grade, and the transportation lines in the eastern-western direction will inevitably encounter them. In the intersection area, the tunnel excavation has great effects on the groundwater environment. (4) The lighter hydrogen and oxygen isotopes are enriched in Karst water from the first grade to the third grade, indicating that the recharge source of Karst water presents obvious elevation effect.</description><subject>Altitude</subject><subject>Analysis</subject><subject>Aquatic resources</subject><subject>Aquifers</subject><subject>China</subject><subject>Elevation</subject><subject>Excavation</subject><subject>Fractals</subject><subject>Geology</subject><subject>Groundwater</subject><subject>Groundwater flow</subject><subject>Hydrogeology</subject><subject>Hydrology</subject><subject>Isotopes</subject><subject>Karst</subject><subject>Landforms</subject><subject>Lithology</subject><subject>Morphology</subject><subject>Oxygen enrichment</subject><subject>Oxygen isotopes</subject><subject>Rivers</subject><subject>Stable isotopes</subject><subject>Topography</subject><subject>Tunnels</subject><subject>United Kingdom</subject><subject>Water analysis</subject><subject>Water circulation</subject><subject>Water flow</subject><subject>Water resources</subject><subject>Water sampling</subject><subject>Water, Underground</subject><issn>2073-4441</issn><issn>2073-4441</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpNkc1KAzEQxxdRsGgPvkHAk2A1abIfOZalVrHgpZ6X2exkm7JNarJt7cv4rKZWxMmQGSa__0BmkuSG0QfOJX3cs5QyOqb5WTKINx8JIdj5v_wyGYawotGELIqUDpKvcgm2RTKx0B2CCcRp8go-9GQOttHOr8M9eT403rXoOtcaBR0pnW1Mb5wNJEJkqjWq_ke62FqLHZl-KtjBkSDRZ95tbbOHHj2Z2p3xzq7R9sRYslh6RLJwG9d62CwPkYUGw_GpXBoL18mFhi7g8DdeJe9P00X5PJq_zV7KyXykOGf9KGMFyBolz3I6rnmdKyG04pSnugChUyji72kmpGpqTbmSKDJkIqV1HFiqBL9Kbk99N959bDH01cptfZxJqMZ5xpiUWZFF6uFEtdBhZax2vQcVT4Nro5xFbWJ9kkvG03GRsyi4OwmUdyF41NXGmzX4Q8VodVxZ9bcy_g1aWoln</recordid><startdate>20230101</startdate><enddate>20230101</enddate><creator>Tang, Yige</creator><creator>Zhang, Qiang</creator><creator>Qi, Jihong</creator><creator>Xu, Mo</creator><creator>Li, Xiao</creator><creator>Qu, Chenhao</creator><creator>Yi, Lei</creator><creator>Wang, Dong</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20230101</creationdate><title>Change Analysis of Karst Landforms, Hydrogeological Conditions and Effects of Tunnel Excavation on Groundwater Environment in Three Topography Grades in China</title><author>Tang, Yige ; Zhang, Qiang ; Qi, Jihong ; Xu, Mo ; Li, Xiao ; Qu, Chenhao ; Yi, Lei ; Wang, Dong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c331t-618a9be936702b3b7c44fc3035f8a4f5a84440649cdbf03c9e46e1450b5015c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Altitude</topic><topic>Analysis</topic><topic>Aquatic resources</topic><topic>Aquifers</topic><topic>China</topic><topic>Elevation</topic><topic>Excavation</topic><topic>Fractals</topic><topic>Geology</topic><topic>Groundwater</topic><topic>Groundwater flow</topic><topic>Hydrogeology</topic><topic>Hydrology</topic><topic>Isotopes</topic><topic>Karst</topic><topic>Landforms</topic><topic>Lithology</topic><topic>Morphology</topic><topic>Oxygen enrichment</topic><topic>Oxygen isotopes</topic><topic>Rivers</topic><topic>Stable isotopes</topic><topic>Topography</topic><topic>Tunnels</topic><topic>United Kingdom</topic><topic>Water analysis</topic><topic>Water circulation</topic><topic>Water flow</topic><topic>Water resources</topic><topic>Water sampling</topic><topic>Water, Underground</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tang, Yige</creatorcontrib><creatorcontrib>Zhang, Qiang</creatorcontrib><creatorcontrib>Qi, Jihong</creatorcontrib><creatorcontrib>Xu, Mo</creatorcontrib><creatorcontrib>Li, Xiao</creatorcontrib><creatorcontrib>Qu, Chenhao</creatorcontrib><creatorcontrib>Yi, Lei</creatorcontrib><creatorcontrib>Wang, Dong</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Water (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tang, Yige</au><au>Zhang, Qiang</au><au>Qi, Jihong</au><au>Xu, Mo</au><au>Li, Xiao</au><au>Qu, Chenhao</au><au>Yi, Lei</au><au>Wang, Dong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Change Analysis of Karst Landforms, Hydrogeological Conditions and Effects of Tunnel Excavation on Groundwater Environment in Three Topography Grades in China</atitle><jtitle>Water (Basel)</jtitle><date>2023-01-01</date><risdate>2023</risdate><volume>15</volume><issue>1</issue><spage>207</spage><pages>207-</pages><issn>2073-4441</issn><eissn>2073-4441</eissn><abstract>One-third of the Earth in China is formed by Karst topography, which exposes different Karst landforms in three topography grades from southeast to northwest, corresponding to below several hundred meters for the first grade, one to two thousand meters for the second grade, and more than 4000 m for the in Qinghai-Tibet Plateau. Through the hydrochemical and D-18O stable isotopes of 64 water samples collected along two railway lines and the topography fractal characteristics of three typical Karst areas in different topography grades, the changes in Karst development degree, changes in groundwater activities, and the influence of tunnel excavation effects on groundwater environment were analyzed. The results indicated that: (1) the Karst development degree and the influence of Karst tunnel excavation on the groundwater environment are somehow similar in the first and second grades, while there are significant differences between the slopes area from second to third grade and the third grade area. (2) In detail, the relatively weaker Karst development degree and flow seeping in the second grade relatively weaken the influences of tunnel excavation, including the distribution pattern of water resources, the groundwater flow field, and water circulation, while the tunnel elevation has little room to rise. (3) There are many large faults in the north-southward direction in the third topography grade, and the transportation lines in the eastern-western direction will inevitably encounter them. In the intersection area, the tunnel excavation has great effects on the groundwater environment. (4) The lighter hydrogen and oxygen isotopes are enriched in Karst water from the first grade to the third grade, indicating that the recharge source of Karst water presents obvious elevation effect.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/w15010207</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Altitude Analysis Aquatic resources Aquifers China Elevation Excavation Fractals Geology Groundwater Groundwater flow Hydrogeology Hydrology Isotopes Karst Landforms Lithology Morphology Oxygen enrichment Oxygen isotopes Rivers Stable isotopes Topography Tunnels United Kingdom Water analysis Water circulation Water flow Water resources Water sampling Water, Underground |
| title | Change Analysis of Karst Landforms, Hydrogeological Conditions and Effects of Tunnel Excavation on Groundwater Environment in Three Topography Grades in China |
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