Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi
Inland freshwater shallow lake ecosystem degradation is indistinctly intertwined with human-induced factors and climate variability. Changes in climate and human-induced factors significantly influence the state of lake ecosystems. This study provides evidence of the driver, pressure, state, impact,...
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MDPI AG
2022-02-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/4/619 |
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| author | Ishmael Bobby Mphangwe Kosamu Rodgers Makwinja Chikumbusko Chiziwa Kaonga Seyoum Mengistou Emmanuel Kaunda Tena Alamirew Friday Njaya |
| author_facet | Ishmael Bobby Mphangwe Kosamu Rodgers Makwinja Chikumbusko Chiziwa Kaonga Seyoum Mengistou Emmanuel Kaunda Tena Alamirew Friday Njaya |
| author_sort | Ishmael Bobby Mphangwe Kosamu |
| collection | DOAJ |
| description | Inland freshwater shallow lake ecosystem degradation is indistinctly intertwined with human-induced factors and climate variability. Changes in climate and human-induced factors significantly influence the state of lake ecosystems. This study provides evidence of the driver, pressure, state, impact, and response (DPSIR) indicators for freshwater lake ecosystem dynamics, taking Lake Malombe in Malawi as a case study. We used the DPSIR framework and Tobit model to achieve the study’s objectives. The study’s findings indicate that top-down processes gradually erode Lake Malombe’s ecosystem state. The lake resilience is falling away from its natural state due to increasing rates of drivers, pressures, and impacts, indicating the lake ecosystem’s deterioration. The study shows that demographic, socio–economic, climatic drivers, pressures, state, and responses significantly (<i>p</i> < 0.05) influenced the lake ecosystem’s resilience. The study suggests that substantial freshwater ecosystem management under the current scenario requires a long-term, robust, and sustainable management plan. The findings from this study provide a roadmap for short-term and long-term practical policy-focused responses, particularly in implementing a freshwater ecosystem restoration programs in Malawi and Africa more broadly. |
| first_indexed | 2024-03-09T20:51:02Z |
| format | Article |
| id | doaj.art-d5df6a0678384ab7a0a17196961e20b0 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T20:51:02Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-d5df6a0678384ab7a0a17196961e20b02023-11-23T22:34:48ZengMDPI AGWater2073-44412022-02-0114461910.3390/w14040619Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, MalawiIshmael Bobby Mphangwe Kosamu0Rodgers Makwinja1Chikumbusko Chiziwa Kaonga2Seyoum Mengistou3Emmanuel Kaunda4Tena Alamirew5Friday Njaya6Department of Physics and Biochemical Science, Malawi University of Business and Applied Sciences, P/Bag 303, Chichiri, Blantyre 3, MalawiAfrican Centre of Excellence for Water Management, Addis Ababa University, Addis Ababa P.O. Box 1176, EthiopiaDepartment of Physics and Biochemical Science, Malawi University of Business and Applied Sciences, P/Bag 303, Chichiri, Blantyre 3, MalawiAfrican Centre of Excellence for Water Management, Addis Ababa University, Addis Ababa P.O. Box 1176, EthiopiaAfrican Centre of Excellence in Aquaculture and Fisheries (AquaFish), Lilongwe University of Agriculture and Natural Resources, Lilongwe P.O. Box 219, MalawiWater and Land Resource Centre, Addis Ababa University, Addis Ababa P.O. Box 3880, EthiopiaDepartment of Fisheries, Fisheries Deptment Headquaters, Ministry of Forestry and Natural Resources, Capitol Hill, Lilongwe P.O. Box 593, MalawiInland freshwater shallow lake ecosystem degradation is indistinctly intertwined with human-induced factors and climate variability. Changes in climate and human-induced factors significantly influence the state of lake ecosystems. This study provides evidence of the driver, pressure, state, impact, and response (DPSIR) indicators for freshwater lake ecosystem dynamics, taking Lake Malombe in Malawi as a case study. We used the DPSIR framework and Tobit model to achieve the study’s objectives. The study’s findings indicate that top-down processes gradually erode Lake Malombe’s ecosystem state. The lake resilience is falling away from its natural state due to increasing rates of drivers, pressures, and impacts, indicating the lake ecosystem’s deterioration. The study shows that demographic, socio–economic, climatic drivers, pressures, state, and responses significantly (<i>p</i> < 0.05) influenced the lake ecosystem’s resilience. The study suggests that substantial freshwater ecosystem management under the current scenario requires a long-term, robust, and sustainable management plan. The findings from this study provide a roadmap for short-term and long-term practical policy-focused responses, particularly in implementing a freshwater ecosystem restoration programs in Malawi and Africa more broadly.https://www.mdpi.com/2073-4441/14/4/619DPSIR modelsecosystem stateLake Malombetobit model |
| spellingShingle | Ishmael Bobby Mphangwe Kosamu Rodgers Makwinja Chikumbusko Chiziwa Kaonga Seyoum Mengistou Emmanuel Kaunda Tena Alamirew Friday Njaya Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi Water DPSIR models ecosystem state Lake Malombe tobit model |
| title | Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi |
| title_full | Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi |
| title_fullStr | Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi |
| title_full_unstemmed | Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi |
| title_short | Application of DPSIR and Tobit Models in Assessing Freshwater Ecosystems: The Case of Lake Malombe, Malawi |
| title_sort | application of dpsir and tobit models in assessing freshwater ecosystems the case of lake malombe malawi |
| topic | DPSIR models ecosystem state Lake Malombe tobit model |
| url | https://www.mdpi.com/2073-4441/14/4/619 |
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