Dan Zhang , Chunping Min , Hui Yu , Jianping Wang , Peng Xue , Dongmei Yu , Liang Chen , Ziwei Rong , Qi Zhang , Rongshan Wan
{"title":"基于系统动力学模型的柴达木盐湖资源环境承载力发展趋势分析与预警","authors":"Dan Zhang , Chunping Min , Hui Yu , Jianping Wang , Peng Xue , Dongmei Yu , Liang Chen , Ziwei Rong , Qi Zhang , Rongshan Wan","doi":"10.1016/j.ecolind.2025.113516","DOIUrl":null,"url":null,"abstract":"<div><div>Assessing the environmental carrying capacity for salt lake resources is essential for promoting sustainable development and use. A system dynamics (SD) model was employed to investigate the interrelationships among the economy, water resources, mineral resources, and the environment of Qaidam Salt Lake, scientifically focusing on the developmental requirements for potash and lithium resource development. An integrated evaluation system was developed to measure resource and environmental carrying capacity. Four different development scenarios were simulated to analyze the development tendencies of resource and environmental carrying capacity from 2021 to 2050, with early warnings issued. The results showed that: (1) The integrated carrying capacity of water resources and the environment initially declines before experiencing a subsequent increase. The water resources carrying capacity remains non-overloaded, while the environmental carrying capacity shows signs of overload. (2) By 2050, the carrying capacity for potash is projected to range from 7.91 to 9.17 million tons, whereas the carrying capacity for lithium is expected to range from 0.25 to 0.26 million tons. (3) Under the Business As Usual (BAU) and Increased Demand Scenarios (IDS), orange or red warnings are predicted during 2027–2044 and 2026–2050, respectively. In contrast, the Resource-saving Scenario (RSS) and Technology Enhancement Scenario (TES) result in lower environmental pressure, triggering only up to yellow warnings. A comprehensive assessment of resource consumption, environmental protection, and economic development shows that the TES scenario is most conducive to regional sustainable development. The findings provide a scientific basis for evaluating resource development levels and mitigating risks associated with resource depletion and environmental degradation due to over-exploitation. Furthermore, they contribute to sustainable management strategies for Qaidam Salt Lake and serve as a reference for similar regions.</div></div>","PeriodicalId":11459,"journal":{"name":"Ecological Indicators","volume":"175 ","pages":"Article 113516"},"PeriodicalIF":7.0000,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development tendency analysis and early warning of resource and environmental carrying capacity based on system dynamics model in Qaidam salt Lake, China\",\"authors\":\"Dan Zhang , Chunping Min , Hui Yu , Jianping Wang , Peng Xue , Dongmei Yu , Liang Chen , Ziwei Rong , Qi Zhang , Rongshan Wan\",\"doi\":\"10.1016/j.ecolind.2025.113516\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Assessing the environmental carrying capacity for salt lake resources is essential for promoting sustainable development and use. A system dynamics (SD) model was employed to investigate the interrelationships among the economy, water resources, mineral resources, and the environment of Qaidam Salt Lake, scientifically focusing on the developmental requirements for potash and lithium resource development. An integrated evaluation system was developed to measure resource and environmental carrying capacity. Four different development scenarios were simulated to analyze the development tendencies of resource and environmental carrying capacity from 2021 to 2050, with early warnings issued. The results showed that: (1) The integrated carrying capacity of water resources and the environment initially declines before experiencing a subsequent increase. The water resources carrying capacity remains non-overloaded, while the environmental carrying capacity shows signs of overload. (2) By 2050, the carrying capacity for potash is projected to range from 7.91 to 9.17 million tons, whereas the carrying capacity for lithium is expected to range from 0.25 to 0.26 million tons. (3) Under the Business As Usual (BAU) and Increased Demand Scenarios (IDS), orange or red warnings are predicted during 2027–2044 and 2026–2050, respectively. In contrast, the Resource-saving Scenario (RSS) and Technology Enhancement Scenario (TES) result in lower environmental pressure, triggering only up to yellow warnings. A comprehensive assessment of resource consumption, environmental protection, and economic development shows that the TES scenario is most conducive to regional sustainable development. The findings provide a scientific basis for evaluating resource development levels and mitigating risks associated with resource depletion and environmental degradation due to over-exploitation. Furthermore, they contribute to sustainable management strategies for Qaidam Salt Lake and serve as a reference for similar regions.</div></div>\",\"PeriodicalId\":11459,\"journal\":{\"name\":\"Ecological Indicators\",\"volume\":\"175 \",\"pages\":\"Article 113516\"},\"PeriodicalIF\":7.0000,\"publicationDate\":\"2025-04-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ecological Indicators\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1470160X25004467\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecological Indicators","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1470160X25004467","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Development tendency analysis and early warning of resource and environmental carrying capacity based on system dynamics model in Qaidam salt Lake, China
Assessing the environmental carrying capacity for salt lake resources is essential for promoting sustainable development and use. A system dynamics (SD) model was employed to investigate the interrelationships among the economy, water resources, mineral resources, and the environment of Qaidam Salt Lake, scientifically focusing on the developmental requirements for potash and lithium resource development. An integrated evaluation system was developed to measure resource and environmental carrying capacity. Four different development scenarios were simulated to analyze the development tendencies of resource and environmental carrying capacity from 2021 to 2050, with early warnings issued. The results showed that: (1) The integrated carrying capacity of water resources and the environment initially declines before experiencing a subsequent increase. The water resources carrying capacity remains non-overloaded, while the environmental carrying capacity shows signs of overload. (2) By 2050, the carrying capacity for potash is projected to range from 7.91 to 9.17 million tons, whereas the carrying capacity for lithium is expected to range from 0.25 to 0.26 million tons. (3) Under the Business As Usual (BAU) and Increased Demand Scenarios (IDS), orange or red warnings are predicted during 2027–2044 and 2026–2050, respectively. In contrast, the Resource-saving Scenario (RSS) and Technology Enhancement Scenario (TES) result in lower environmental pressure, triggering only up to yellow warnings. A comprehensive assessment of resource consumption, environmental protection, and economic development shows that the TES scenario is most conducive to regional sustainable development. The findings provide a scientific basis for evaluating resource development levels and mitigating risks associated with resource depletion and environmental degradation due to over-exploitation. Furthermore, they contribute to sustainable management strategies for Qaidam Salt Lake and serve as a reference for similar regions.
期刊介绍:
The ultimate aim of Ecological Indicators is to integrate the monitoring and assessment of ecological and environmental indicators with management practices. The journal provides a forum for the discussion of the applied scientific development and review of traditional indicator approaches as well as for theoretical, modelling and quantitative applications such as index development. Research into the following areas will be published.
• All aspects of ecological and environmental indicators and indices.
• New indicators, and new approaches and methods for indicator development, testing and use.
• Development and modelling of indices, e.g. application of indicator suites across multiple scales and resources.
• Analysis and research of resource, system- and scale-specific indicators.
• Methods for integration of social and other valuation metrics for the production of scientifically rigorous and politically-relevant assessments using indicator-based monitoring and assessment programs.
• How research indicators can be transformed into direct application for management purposes.
• Broader assessment objectives and methods, e.g. biodiversity, biological integrity, and sustainability, through the use of indicators.
• Resource-specific indicators such as landscape, agroecosystems, forests, wetlands, etc.