Understanding the spatiotemporal pollution dynamics of highly fragile montane watersheds of Kashmir Himalaya, India

Bhat, Sami Ullah; Khanday, Shabir A.; Islam, Sheikh Tajamul; Sabha, Inam

doi:10.1016/j.envpol.2021.117335

Cited by 25 publications

(5 citation statements)

References 88 publications

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“…There are no unified conclusions about the most informative spatial scale, as in some studies the whole catchment is the key to understanding some of the water quality parameters [102,103]. There is also broad evidence that land use in the close proximity of streams may be the most important in terms of explaining water quality [37,104]. As suggested previously, the comparison of such results is difficult due to the heterogeneous land cover datasets used, different periods of interest, and factors such as topography and relief [33,105].…”

Section: The Role Of Spatial Scale For Water Qualitymentioning

confidence: 99%

The Impact of Various Types of Cultivation on Stream Water Quality in Central Poland

Stępniewski,

Karger,

Łaszewski

2023

Water

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Agricultural practices have a significant impact on stream water quality in rural landscapes; however, there is still little empirical evidence of how different types of cultivation alter the hydrochemistry of running water. Thus, the current study explored the spatial dynamics of selected ion concentrations and their land cover dependence in lowland agricultural catchments. From November 2021 to October 2022, water samples were collected from 30 sites located across small tributaries of the rivers Bzura, Pilica, and Radomka for chemical analysis of their NO3, NO2, NH4, Ca, Mg, K, Na, As, Ba, Sr, and V concentrations. The results indicated a clear spatial heterogeneity of water quality, related to lithology and dominant land cover evaluated with the CORINE Land Cover 2018 dataset. Overall, sites representing agricultural land promoted increased concentrations of major and trace elements, while those with pepper cultivation were additionally contaminated with NO3 and NO2. The correlation performance for nitrogen compounds was the highest for narrower buffer zones, which was not documented for major and trace elements, which were linked more strongly with land cover at larger scales. Such new insights into the water quality dynamics of lowland agricultural catchments, being a simultaneous reflection of lithology, agricultural practices, and several municipal impacts, have significant implications for appropriate water management in rural landscapes.

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Section: The Role Of Spatial Scale For Water Qualitymentioning

confidence: 99%

The Impact of Various Types of Cultivation on Stream Water Quality in Central Poland

Stępniewski,

Karger,

Łaszewski

2023

Water

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“…Human activities have exerted considerable anthropogenic influences on the earth system since the Anthropocene (1)(2)(3). Indeed, the increase in human activities through the rapid growth of population and urbanization has gradually become an important driving factor affecting the ecological environment on a global scale (4)(5)(6)(7). According to previous studies, over 75 and 90% of the earth's land surface and riverine systems, respectively, have been altered as a result of human activities (8)(9)(10)(11)(12), resulting in a series of eco-environmental problems, such as global warming, water pollution, and land degradation (13)(14)(15).…”

Section: Introductionmentioning

confidence: 99%

A novel method for quantifying human disturbances: A case study of Huaihe River Basin, China

Wang

Zhang²,

Wang³

et al. 2023

Front. Public Health

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Human disturbances have become the main factors affecting the ecological environment. Therefore, evaluating the intensity of human disturbances is of great significance for ensuring effective regional conservation and ecosystem management. In this study, we constructed a novel method to quantify human disturbances based on three components of human disturbances into three types, namely naturalness transformation, natural resource consumption, and pollutant emissions. These components were quantified using the land use naturalness index (LNI), resource consumption index (RCI), and pollution emission index (PEI). Based on these three indicators, the human disturbances index (HDI) was calculated to reflect the intensity of human disturbances. In addition, remote sensing (RS), geographic information system (GIS), and multisource data were combined in the HDI method, taking into account the temporal variability of input parameters to achieve more convenient and comprehensive dynamic monitoring and evaluation of human disturbances. The applicability and effectiveness of the HDI method were assessed in the Huaihe River Basin, China. The obtained results revealed an increase and decrease in the intensities of human disturbances in the Huaihe River Basin from 1990 to 2005 and from 2010 to 2018, respectively. In addition, areas with a high level of human disturbances in the 1990–2005 period were mainly concentrated in the agricultural and industrial areas, while those in the 2010–2018 period were mainly observed in urban areas. This change was mainly due to a decrease in the pollutant emission amounts from agricultural and industrial lands and a marked increase in resource consumption in urban areas. This study provides theoretical guidance for regional conservation in the Huaihe River Basin and a new method for quantifying human disturbances.

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“…Seasonal dynamics have a significant impact on the emergence, growth, development, and reproduction of macrobenthic invertebrates inhabiting the streams. The lotic waters like streams and rivers are susceptible to various environmental alterations in hydrological, geomorphological, and biological parameters [3][4][5] . In the temperate regions, streams and rivers are influenced by climatic conditions and habitat characteristics which ultimately have an impact on the macrobenthic invertebrates and fishes 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation in the Macrobenthic Invertebrate Densities of Aripal and Watalara Streams of Kashmir Himalaya, India

Mir

Bakhtiyar²,

Parveen³

et al. 2022

JEOH

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The present study reflects the seasonal variation of macrobenthic invertebrates from Aripal and Watalara streams in Kashmir Himalaya. During the study, a significant difference (p<0.05) was observed in the density of Annelida, Mollusca, and Arthropoda on a seasonal scale. Macrobenthic invertebrates were found to be at their highest density during summer and autumn, whereas they were recorded lowest during winter and spring. The total density during summer and autumn was found to be significantly different (p<0.05) when compared to winter and spring seasons. The data also depicted the maximum density of Arthropoda followed by Mollusca and Annelida. The study reveals the seasonal stability of the stream ecosystem within the temperate region and also provides the baseline information for macrobenthic invertebrate community structure.

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Understanding the spatiotemporal pollution dynamics of highly fragile montane watersheds of Kashmir Himalaya, India

Cited by 25 publications

References 88 publications

The Impact of Various Types of Cultivation on Stream Water Quality in Central Poland

The Impact of Various Types of Cultivation on Stream Water Quality in Central Poland

A novel method for quantifying human disturbances: A case study of Huaihe River Basin, China

Seasonal Variation in the Macrobenthic Invertebrate Densities of Aripal and Watalara Streams of Kashmir Himalaya, India

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