土地利用/土地覆盖动态、权衡及其对热带内陆浅湖“生态系统”管理的影响:马拉维Malombe湖的案例

IF 2.3 Q3 ENVIRONMENTAL SCIENCES Sustainable Environment Pub Date : 2021-01-01 DOI:10.1080/27658511.2021.1969139
R. Makwinja, S. Mengistou, E. Kaunda, T. Alamirew
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引用次数: 7

摘要

马伦贝湖支持多种生态系统服务功能。然而,它正越来越多地承受着人为的压力。本研究采用地理空间调查、住户调查、焦点小组讨论、关键信息提供者访谈、协商会议和实地观察来评估土地利用/土地覆盖动态(LULCD)、其权衡和对可持续生态环境的影响。研究结果表明,林地面积(52932公顷至78983公顷)减少,耕地面积(52932公顷至78983公顷)和居民点面积(7054公顷至17595公顷)减少。渔业、河流流量、水土流失、浑浊度、生物多样性、外来物种入侵、景观美、部分物种灭绝、频繁洪水、文化价值和碳固存等生态指标的变化与部分LULCD类别有显著(p-<0.05)的相关性。研究结果对政策制定者、生态系统管理者、当地居民和各利益相关者了解湖泊生态恢复与人类福祉之间的利益冲突和政策优先事项具有重要意义。
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Land use/land cover dynamics, trade-offs and implications on tropical inland shallow lakes’ ecosystems’ management: Case of Lake Malombe, Malawi
ABSTRACT Lake Malombe supports various ecosystem services (ESs). However, it is increasingly experiencing human-induced pressure. This study used geospatial, household surveys, focus group discussion, key informant interviews, consultative meetings, and field observation on assessing the Land use/Land cover dynamics (LULCD), its trade-offs, and implications on ESs. The findings demonstrated a decrease in forest land (52,932 ha to 78,983 ha) at the expense of cultivated (52,932 ha to 78,983 ha) and settlements (7054 ha to 17,595 ha). Changes in ecological indicators such as fishery, river flow, soil erosion, turbidity, biodiversity, invasion of alien species, scenic beauty, extinction of some species, frequent flooding, cultural value, and carbon sequestration were significantly (p-<0.05) linked to some LULCD classes. The study findings are significant to policymakers, ecosystem managers, the local population, and various stakeholders in understanding conflicting interests and policy priorities to balance the lake ecological restoration and human welfare.
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来源期刊
Sustainable Environment
Sustainable Environment ENVIRONMENTAL SCIENCES-
CiteScore
4.40
自引率
4.30%
发文量
21
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