Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India

Wetlands form an important and dynamic ecosystem, and therefore, need continuous monitoring. We have developed a framework to assess the status of wetland health based on hydrogeomorphic characteristics and vegetation dynamics and have implemented it on a newly designated Ramsar site, Kaabar Tal, a...

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Autores principales:	Manudeo Singh, Rajiv Sinha
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Wetland hydrogeomorphology Wetland hydrology Wetland remote sensing Hydrogeomorphic health indicators Floodplain wetlands Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/0bfb1f6362a9466d88c63ea2be9b4ed7
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spelling	oai:doaj.org-article:0bfb1f6362a9466d88c63ea2be9b4ed72021-12-01T04:52:25ZHydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India1470-160X10.1016/j.ecolind.2021.107739https://doaj.org/article/0bfb1f6362a9466d88c63ea2be9b4ed72021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004040https://doaj.org/toc/1470-160XWetlands form an important and dynamic ecosystem, and therefore, need continuous monitoring. We have developed a framework to assess the status of wetland health based on hydrogeomorphic characteristics and vegetation dynamics and have implemented it on a newly designated Ramsar site, Kaabar Tal, a large floodplain wetland in Ganga Plains, eastern India. The study has attempted to integrate the hydrological, geomorphological, and ecological concepts and tools to develop the protocols for a hydrogeomorphic assessment of wetland health. We have used multi-temporal Landsat imageries to define several health indicators based on water-spread area, geomorphology, and vegetation and have integrated them to compute wetland health index (WHI) scores. These health indicators correspond to a range of spatial scales – landscape (wetland) scale, ecosystem (sub-wetland) scale, and local (pixel) scale and individually represent different hydrogeomorphic and ecological functions as well as dynamics of a wetland. We have also presented four different wetland health scenarios based on dominating health indicator and two integrated scenarios representing the best and the worst WHI scores in all four scenarios. Our results show that the Kaabar Tal is in a degraded state and the degree of degradation varies spatially within the wetland. Agriculture is the prime factor for its degradation, augmented by decreasing rainfall and anthropogenic drainage reorganization. Based on our data analysis, we have suggested several recommendations to restore the health of this wetland. The framework presented in this work has a potential to understand the relationship between hydrodynamics and ecological functions in wetland systems in different hydro-climatic settings.Manudeo SinghRajiv SinhaElsevierarticleWetland hydrogeomorphologyWetland hydrologyWetland remote sensingHydrogeomorphic health indicatorsFloodplain wetlandsEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107739- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wetland hydrogeomorphology Wetland hydrology Wetland remote sensing Hydrogeomorphic health indicators Floodplain wetlands Ecology QH540-549.5
spellingShingle	Wetland hydrogeomorphology Wetland hydrology Wetland remote sensing Hydrogeomorphic health indicators Floodplain wetlands Ecology QH540-549.5 Manudeo Singh Rajiv Sinha Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
description	Wetlands form an important and dynamic ecosystem, and therefore, need continuous monitoring. We have developed a framework to assess the status of wetland health based on hydrogeomorphic characteristics and vegetation dynamics and have implemented it on a newly designated Ramsar site, Kaabar Tal, a large floodplain wetland in Ganga Plains, eastern India. The study has attempted to integrate the hydrological, geomorphological, and ecological concepts and tools to develop the protocols for a hydrogeomorphic assessment of wetland health. We have used multi-temporal Landsat imageries to define several health indicators based on water-spread area, geomorphology, and vegetation and have integrated them to compute wetland health index (WHI) scores. These health indicators correspond to a range of spatial scales – landscape (wetland) scale, ecosystem (sub-wetland) scale, and local (pixel) scale and individually represent different hydrogeomorphic and ecological functions as well as dynamics of a wetland. We have also presented four different wetland health scenarios based on dominating health indicator and two integrated scenarios representing the best and the worst WHI scores in all four scenarios. Our results show that the Kaabar Tal is in a degraded state and the degree of degradation varies spatially within the wetland. Agriculture is the prime factor for its degradation, augmented by decreasing rainfall and anthropogenic drainage reorganization. Based on our data analysis, we have suggested several recommendations to restore the health of this wetland. The framework presented in this work has a potential to understand the relationship between hydrodynamics and ecological functions in wetland systems in different hydro-climatic settings.
format	article
author	Manudeo Singh Rajiv Sinha
author_facet	Manudeo Singh Rajiv Sinha
author_sort	Manudeo Singh
title	Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
title_short	Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
title_full	Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
title_fullStr	Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
title_full_unstemmed	Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India
title_sort	hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new ramsar site (kaabar tal), india
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0bfb1f6362a9466d88c63ea2be9b4ed7
work_keys_str_mv	AT manudeosingh hydrogeomorphicindicatorsofwetlandhealthinferredfrommultitemporalremotesensingdataforanewramsarsitekaabartalindia AT rajivsinha hydrogeomorphicindicatorsofwetlandhealthinferredfrommultitemporalremotesensingdataforanewramsarsitekaabartalindia
_version_	1718405707018010624

Hydrogeomorphic indicators of wetland health inferred from multi-temporal remote sensing data for a new Ramsar site (Kaabar Tal), India

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