Automatization and evaluation of a remote sensing-based indicator for wetland health assessment in East Africa on national and local scales

Steinbach, Stefanie; Hentschel, Esther; Hentze, Konrad; Rienow, Andreas; Umulisa, Viviane; Zwart, Sander J.; Nelson, Andrew

doi:10.1016/j.ecoinf.2023.102032

Cited by 11 publications

(3 citation statements)

References 75 publications

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“…A fundamental aim in the study of mangroves and other wetland forests through remote sensing has been the definition of their spatial limits (Dale et al 1996, Hirano et al 2003, Yang et al 2009, Margono et al 2014, Wang et al 2019, Steinbach et al 2023, which is the basis for their cartographic expression (Figure 3A). This is a necessary step to understand the persistence of wetland forests or the changes in their spatial coverage over time (Kovacs et al 2001, Guerra Martínez & Ochoa Gaona 2006, Ren et al 2011, Mansaray et al 2016, Maryantika & Lin 2017, Pan et al 2020.…”

Section: Spatial Delimitation and Mapping Of Mangroves And Other Wetl...mentioning

confidence: 99%

“…Given the physical characteristics of their habitats and the peculiarities of the vegetation typical of these ecosystems, access to them is difficult, mainly when they cover extensive areas (Kuenzer et al 2011, Sharma 2018. This difficulty explains to some extent the relatively low pace at which crucial information on their structure, composition, and conservation status is gathered; this is worrisome given their high rates of transformation and fast disappearance (López-Portillo & Ezcurra 2002, Flores Mejía et al 2010, Hogarth 2007, Landgrave & Moreno-Casasola 2012, Steinbach et al 2023). An additional property of wetland ecosystems is the high variation of their vegetation; from a practical perspective, such variation can be reduced to the distinction between those communities dominated by herbs (herbaceous wetlands) and those in which dominance is shared by several woody species (wetland forests; Figure 1), among which mangrove forests have received the most attention from vegetation ecologists (Moreno-Casasola et al 2009, Infante Mata et al 2011.…”

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confidence: 99%

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Approaches, potential, and challenges in the use of remote sensing to study mangrove and other tropical wetland forests

Chávez,

López-Portillo,

Gallardo-Cruz

et al. 2023

Bot. Sci.

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Tropical wetland forests are fragile ecosystems facing critical risks due to global warming and other anthropogenic threats. Hence, gathering accurate and reliable information on them is urgent. Although remote sensing has demonstrated great potential in studying terrestrial ecosystems, remote sensing-based wetland forest research is still in an early stage of development. Mapping wetland forests, particularly mangrove forests, was an initial goal of this approach and is a task that still faces methodological challenges. Initially based on aerial photography only, wetland forest mapping through remote sensing underwent explosive diversification after the launching of artificial satellites in the 1970s. Later, precision in wetland forest mapping increased with the combination of hyperspectral, multispectral, and high and very high resolution imagery. Accurate delimitation of wetland forest extent is also necessary to assess their temporal dynamics (losses, gains, and horizontal displacement). Despite the prevalence of mapping studies, current remote sensing-based research on wetland forests addresses new questions and novel aims, such as describing and predicting wetland forest attributes through mathematical modeling. Although this approach has made substantial progress in recent decades, modeling and predicting wetland forest attributes remain insufficiently explored fields of research. Combining active and passive sensors is a promising alternative to provide a more accurate picture of these communities’ attributes. In particular, LiDAR and radar-based technologies may help overcome difficulties encountered in older studies. In the future, we will witness conceptual and methodological progress that will enable us to surmount the remaining challenges.

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Section: Spatial Delimitation and Mapping Of Mangroves And Other Wetl...mentioning

confidence: 99%

mentioning

confidence: 99%

Approaches, potential, and challenges in the use of remote sensing to study mangrove and other tropical wetland forests

Chávez,

López-Portillo,

Gallardo-Cruz

et al. 2023

Bot. Sci.

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“…Many studies have been conducted on ecosystem health assessment in China and abroad, including the sustainable development of certain regions [5][6][7][8] and wetland ecological protection [9,10], which can provide a reference for the health and development of wetland ecosystems. Ecological health assessments have been discussed from several different perspectives, but mainly as they apply to cities [11][12][13], lands [14,15], rivers [16,17], and wetlands [18][19][20]. The analysis process has primarily focused on soil [21] and groundwater [22,23], other elements, and so on [24,25].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Restoration and Protection Based on Sustainable Development Goals on Urban Wetland Health: A Case of Yinchuan Plain Urban Wetland Ecosystem, Ningxia, China

Dong

et al. 2023

Sustainability

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Drawing heavily upon the Sustainable Development Goals (SDGs), an SDG–pressure–state–response (PSR)–ecological–economic–social (EES) model and an index system for wetland ecosystem health assessment were constructed from the three dimensions of environment, economy, and society. By using the Yinchuan Plain urban wetlands in the Yellow River Basin of China as a case study, their ecological health status from 2000 to 2020 was systematically evaluated by integrating information from remote sensing technology, geographic information technology, field sampling, information entropy (IE), a landscape index, and a Comprehensive Evaluation Index. The results show that the restoration and protection of wetland ecosystems have achieved remarkable results in the Yinchuan Plain. The wetland ecological health index has significantly increased from 0.26 to 0.67, which is an increase of 157.7%, and the health level increased from poor (II) to sub-healthy (IV). Factors restricting the healthy development of wetland ecology in the Yinchuan Plain include wetland construction, investment, population density, the number of tourists, and fertilizer use. The research results show that the wetland restoration and protection have achieved specific environmental, economic, and social results in the Yinchuan Plain. However, we also need to pay attention to increasing the investment in wetland environmental governance, strictly controlling the intensity of land use and the total amount of chemical fertilizer applied in various regions, scientifically carrying out wetland restoration and protection, reasonably coordinating the relationship between environment and society, and providing technical and decision-making support for wetland management and protection. This study provides a reference for the ecological governance and sustainable development of wetlands in large river basins worldwide.

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Modeling and assessing spatial and temporal changes in recent agricultural land-use in Ben Tre province, Vietnam

Thien,

Phuong

2024

Environ Earth Sci

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Automatization and evaluation of a remote sensing-based indicator for wetland health assessment in East Africa on national and local scales

Cited by 11 publications

References 75 publications

Approaches, potential, and challenges in the use of remote sensing to study mangrove and other tropical wetland forests

Approaches, potential, and challenges in the use of remote sensing to study mangrove and other tropical wetland forests

The Impact of Restoration and Protection Based on Sustainable Development Goals on Urban Wetland Health: A Case of Yinchuan Plain Urban Wetland Ecosystem, Ningxia, China

Modeling and assessing spatial and temporal changes in recent agricultural land-use in Ben Tre province, Vietnam

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