干旱区生态环境知识资源中心(Arid): Spatiotemporal variation of the nutrients and heavy metals in mangroves using multivariate statistical analysis, Gulf of Kachchh (India)

Arid

DOI	10.1016/j.envres.2021.110803
	Spatiotemporal variation of the nutrients and heavy metals in mangroves using multivariate statistical analysis, Gulf of Kachchh (India)
	Maurya, Parul; Kumari, Rina
通讯作者	Kumari, R (corresponding author), Cent Univ Gujarat, Environm & Sustainable Dev, Gandhinagar 382030, Gujarat, India.
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2021
卷号	195
英文摘要	The present study is an attempt to assess the spatial and seasonal variation of nutrients and heavy metals in mangroves water in the Gulf of Kachchh, India. The surface water samples were collected during pre- and post-monsoon to evaluate the hydrochemical processes occurring in the region. Seasonal changes and anthropogenic inputs have influenced the nutrients and metal concentrations. The results suggest high salinity (Pre-monsoon +/- 45.59 PSU; post-monsoon +/- 45.36 PSU) and chloride (Pre-monsoon +/- 30251 mg/L; post-monsoon +/- 29536 mg/L) concentration in both the seasons. Average values of Sulfate (SO4-), Nitrate (NO3), Dissolved silica (DSi), and Phosphate (PO43-) was 2503.69 mg/L, 10.47 mg/L, 35.41 mg/L and 0.85 mg/L in pre-monsoon, and 3474.50 mg/L, 13.66 mg/L, 31.54 mg/L and 0.64 mg/L in post-monsoon, respectively. Nutrient ratios indicate phosphorus limitation in both the seasons. Cluster and Principal Component analysis signifies that sampling locations in cluster 3 and factor 1 majorly impacted due to seawater mixing, high evaporation and discharge of brine from saltpans, while cluster 2, 3 and factor 2 indicates the anthropogenic source. Metal concentration was higher during pre-monsoon and among the metals, Fe, Sr, Zn and Mn were observed in high concentration. The hydrochemical characteristics of water found to be dependent on the peculiarity of sampling locations such as high tidal amplitude, less freshwater input, arid climate, extensive saltpans, tidal flushing, instinctive reducing environment and anthropogenic discharge. Gulf of Kachchh is an industrial hub of the country, where anthropogenic activities (such as fertilizer, cement, and chemicals industries, oil and petroleum refineries, metal processing units, thermal power plants and ports activities) are the prime sources of contamination, which are affecting water quality. The relatively high concentration of nutrients and metals suggests that water is in very dreadful condition, which will ultimately affect flora and fauna of this ecosystem. This study provides baseline information on mangrove water quality and impacts of ongoing anthropogenic activities on the Gulf of Kachchh.
英文关键词	Mangroves Nutrients Heavy metals Anthropogenic impacts Multivariate statistical analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639328800087
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368894
作者单位	[Maurya, Parul; Kumari, Rina] Cent Univ Gujarat, Environm & Sustainable Dev, Gandhinagar 382030, Gujarat, India
推荐引用方式 GB/T 7714	Maurya, Parul,Kumari, Rina. Spatiotemporal variation of the nutrients and heavy metals in mangroves using multivariate statistical analysis, Gulf of Kachchh (India)[J],2021,195.
APA	Maurya, Parul,&Kumari, Rina.(2021).Spatiotemporal variation of the nutrients and heavy metals in mangroves using multivariate statistical analysis, Gulf of Kachchh (India).ENVIRONMENTAL RESEARCH,195.
MLA	Maurya, Parul,et al."Spatiotemporal variation of the nutrients and heavy metals in mangroves using multivariate statistical analysis, Gulf of Kachchh (India)".ENVIRONMENTAL RESEARCH 195(2021).