Taxonomic approach and potential anthropic indices to understanding cross-sectional morphology and landscape modification of a tropical river Basin, India
artículo
Fecha
2023Autor
Ghosha, Susmita
Islam, Aznarul
Quesada Román, Adolfo
Md. Towfiqul Islam, Abu Reza
Chandra Pal, Subodh
Chandra Das, Balai
Metadatos
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During the Anthropocene, human modifications to fluvial landscapes
have become a common aspect of their progress and development.
The primary objective of this research is to delve into the humaninduced
alterations on fluvial landscapes at both the channel and
basin scales. For channel scale investigation, we classify the channel
cross-sections in terms of human interventions and relate them with
the potential anthropic (or anthropogenic) geomorphology in the
Kopai River basin (KRB) in India. A total of 35 cross-sections (CS) were
surveyed at an interval of ~ 3 km from source to mouth, and a
perceptional survey was executed among randomly selected 960
respondents in the seven community development blocks. The CS
are classified into natural (alluvial and bedrock) and anthropogenic
(monatogenic – mining-influenced, traffic- road-stream crossings,
hydrogenic-influenced by hydrological projects like dams, and agrogenic-
agriculture-influenced) categories following Sźabo’s (1971)
taxonomic approach. The statistical difference between natural and
anthropic cross-sections is measured using seven hydromorphological
characteristics. Basin scale investigation adopting Nir’s index
(1983) of potential anthropic geomorphology (IPAG) from 1961 to
2021 depicts that the IPAG is progressively decreasing with time,
although the reality is different. We propose to extend the basic
notion of the IPAG by incorporating more relevant parameters.
External link to the item
10.1080/02723646.2023.2236839Colecciones
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