Modeling direct above-ground carbon loss due to urban expansion in Zanzibar City Region, Tanzania

Kukkonen, Markus; Khamis, Miza; Muhammad, Mahdir; Käyhkö, Niina; Luoto, Miska

doi:10.1016/j.landusepol.2021.105810

Cited by 12 publications

(10 citation statements)

References 68 publications

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“…However, it is worthy to note that our estimated global AGBC losses are generally higher than previous studies, mainly because we used HFP data that include a combination of diverse human pressures from different aspects (e.g., urban growth and cropland expansion), rather than those merely based on an individual factor such as deforestation. Besides, compared to the previous studies implemented at a relatively small scale or with specific species (Brahma et al, 2018; Hutyra et al, 2011; Kukkonen et al, 2022; Mannan et al, 2019), our study provides a large‐scale exploration covering multiple biomes with different climatic and ecological conditions, as well as diverse plant species.…”

Section: Discussionmentioning

confidence: 95%

“…Besides, compared to the previous studies implemented at a relatively small scale or with specific species (Brahma et al, 2018;Hutyra et al, 2011;Kukkonen et al, 2022;Mannan et al, 2019), our study provides a large-scale exploration covering multiple biomes with different climatic and ecological conditions, as well as diverse plant species.…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, the anthropogenic drivers of AGBC loss are complex and diverse, such as agricultural production, overgrazing, human settlement and built infrastructure expansion, which can interact to contribute to AGBC loss (Corona‐Núñez et al, 2021). Previous studies about the human‐driven AGBC loss lack comprehensive consideration of human activities, either focusing on a single indicator (e.g., urban expansion and logging) (Brahma et al, 2018; He et al, 2016; Kukkonen et al, 2022) or simply using the land cover change maps as a synthetic indicator (Chang et al, 2022; Hu et al, 2021; Li et al, 2016; Wang et al, 2022). Essentially, the AGBC dynamics exhibit significant temporal and spatial variation within different regions of the globe due to different reasons (Dixon et al, 1994; Pan et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Human footprints in the Global South accelerate biomass carbon loss in ecologically sensitive regions

Geng

et al. 2023

Global Change Biology

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Human activities have placed significant pressure on the terrestrial biosphere, leading to ecosystem degradation and carbon losses. However, the full impact of these activities on terrestrial biomass carbon remains unexplored. In this study, we examined changes in global human footprint (HFP) and human‐induced aboveground biomass carbon (AGBC) losses from 2000 to 2018. Our findings show an increasing trend in HFP globally, resulting in the conversion of wilderness areas to highly modified regions. These changes have altered global biomes' habitats, particularly in tropical and subtropical regions. We also found accelerated AGBC loss driven by HFP expansion, with a total loss of 19.99 ± 0.196 PgC from 2000 to 2018, especially in tropical regions. Additionally, AGBC is more vulnerable in the Global South than in the Global North. Human activities threaten natural habitats, resulting in increasing AGBC loss even in strictly protected areas. Therefore, scientifically guided planning of future human activities is crucial to protect half of Earth through mitigation and adaptation under future risks of climate change and global urbanization.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Human footprints in the Global South accelerate biomass carbon loss in ecologically sensitive regions

Geng

et al. 2023

Global Change Biology

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“…Urban expansion is a long-term and widely concerned topic, which has caused a series of problems globally. Due to urban expansion, the environment has deteriorated in Arapiraca City, Brazil [ 53 ], the above-ground carbon loss in Zanzibar City, Tanzania [ 54 ], and peri-urban farmers’ poverty has increased in Africa [ 55 ], etc. Green infrastructure has been used to address urban expansion for many years [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, urban planning is also an effective measure of urban expansion. Policymakers must consider urban growth factors under different land cover scenarios, monitor the impacts of urban expansion on urban ecology [ 58 ], develop urban greenery strategy and support urban densification [ 54 ], assess urban ecosystem services at the right scale and resolution [ 59 ], account for the multi-functionality of urban green infrastructure, define strategic objectives, ensure long-term commitment in the implementation phase, and strengthen planning arguments against conflicting interests [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

Simulating Urban Expansion Based on Ecological Security Pattern—A Case Study of Hangzhou, China

Yang

Zhu

et al. 2021

IJERPH

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Disordered urban expansion has encroached on a large amount of ecological land, resulting in the steady degradation of urban ecology, which has an adverse effect on the sustainable development of the region. An ecological security pattern can effectively control urban expansion, and it is of great significance to balance urban development and ecological protection. In order to analyze the impact of ecological security patterns on urban expansion, Hangzhou was taken as an example, the CA-Markov model and FLUS model were used to simulate the urban expansion pattern in 2030 under the natural development scenario and the ecological security scenario. The results showed that (1) the ecological source area in the study area is 630.90 km2 and was mainly distributed in the western mountainous area. There are 14 ecological corridors, primarily composed of valleys and rivers. Ecological nodes are mainly distributed on the north and south sides of the main urban area. (2) From 2000 to 2018, the annual increase index (AI) of construction land decreased in the northeast and southeast directions but increased in the northwest and southwest directions, and in the northeast direction the value was always the highest. Except for the southwest direction, the average annual growth rate (AGR) of construction land in the other directions decreased. At a distance from the city center of 30 km, AI was relatively higher and was increasing, while AGR was declining. At a distance of 30–45 km, both AI and AGR were increasing, indicating that the focus of construction land was moving outwards. (3) From 2018 to 2030, under both natural development scenario and ecological security scenario, construction land would keep expanding, but the construction land area, proportion, AI, and AGR of the latter would both be smaller than the former, indicating that the ecological security pattern can effectively curb urban expansion. Because of a large amount area of ecological sources, the expansion of construction land in the southwest direction would be constrained, especially under the ecological security scenario. The methods and results of this study can provide theoretical and application references for urban planning and green development in metropolises.

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Site suitability analysis for industrial development using geospatial technology and multi criteria decision making

Giri,

Tripathy,

Swain

et al. 2023

Environmental Quality Mgmt

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In the process of developing industries to eradicate poverty, developing countries continue to invest more in their land use system, as this may provide a safeguard to food security through a healthy ecosystem and have a positive impact on sustainability. The Geographic Information System (GIS) has created an unprecedented world of possibilities for processing data from remote sensing and other sources. Multi Criteria Decision Making (MCDM), in conjunction with geospatial technology, provides a tool for industrial area mapping and management. The current research was conducted in three blocks of the Baleshwar district in northern Odisha, India. Analysis of a location's physical, social, and economic factors to see if it is good for a certain use, like an industrial setup, urban planning, or recreational use, is becoming more and more important in today's world so that important decisions can be made within a short period. Due to the fact that the present research location is located in close proximity to both hilly terrain and a coastal plan, the site's appropriateness may be improved by employing a variety of factors to design an industrial setup that is economically viable. The goal of the study is to apply land suitability analysis (LSA) to identify existing land use in areas with industrial growth potential so that agricultural and industrial development may focus on long‐term sustainability. According to this study, 16.6% (201.79 km2) of the area is highly suitable, 48.2% (586.96 km2) is moderately suitable, 15.5% (188.40 km2) is less suitable, and 19.71% (239.73 km2) is not suitable at all. Due to the abundance of raw materials, improved communication, and proximity to the shore, the Baleswar block has the largest percentage of highly suitable areas when compared to the Remuna and Nilgiri blocks of the research area.

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Modeling direct above-ground carbon loss due to urban expansion in Zanzibar City Region, Tanzania

Cited by 12 publications

References 68 publications

Human footprints in the Global South accelerate biomass carbon loss in ecologically sensitive regions

Human footprints in the Global South accelerate biomass carbon loss in ecologically sensitive regions

Simulating Urban Expansion Based on Ecological Security Pattern—A Case Study of Hangzhou, China

Site suitability analysis for industrial development using geospatial technology and multi criteria decision making

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