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A Systematic Review on the Impact of Urbanization and Industrialization on Indian Coastal Mangrove Ecosystem

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Coastal Ecosystems

Part of the book series: Coastal Research Library ((COASTALRL,volume 38))

Abstract

The history of human civilization has witnessed a strong and rapid transformation pattern in the coastal environment. It harbors a prominent transition zone of land and sea that plays a significant part in the socioeconomic and environmental aspects. Due to tremendous pressure from anthropogenic perturbations manifested by coastal squeeze, it’s protection and conservation become substantial. 5.04% of the mangrove land has been converted to aquaculture land between 1988 and 2013. Present mangrove loss is 35% which is supposed to reach 60% by 2030. Human activities increase the chances of exposure of coastal waters to effluents (organic and inorganic) released from the industrial and urban components which accelerate the metals and nutrient pollution, eutrophication, and oxygen depletion. This tends to alter ecosystem dynamics and biogeochemical processes with serious impacts on the biota. Pichavaram shows an increase in nitrate from 5.9 mg/l in 1995 to 29.9 mg/l in 2006–2007. In Sundarbans it increases from 1.14 mg/l in 2001 to 3.69 mg/l in 2006 and in Godavari from 0.61 mg/l in 2001 to 2.25 mg/l in 2016. The phosphate values increase from 0.28 mg/l in 1995 to 6.6 mg/l in 2006 in Pichavaram mangroves. Manori creek, Mumbai, shows hike in phosphate in past 25 years. The value increases from 0.06 mg/l in 1982 to 2.19 mg/l in 2007. A consistent increase in heavy metal content has been observed in Sundarban, Pichavaram, and Goa mangroves. Thus, the resultant surge of heavy metals and nutrient pollutants indicates growth of fallow land, agricultural, and aquaculture activities and industrial pollution. This chapter has been constructed to discuss a holistic view of the major drivers of coastal mangrove ecosystem degradation by reviewing the case studies to highlight the past changes and present trends of human activities through industrialization and urbanization. We evaluate the impact of these human influences on the mangrove ecosystem, with an approach to emphasize the crucial role of mangroves, both in terms of quality and quantity, and the absolute need to conserve their future.

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Abbreviations

μM:

Micromolar

ADB:

Asian Development Bank

As:

Arsenic

BOD:

Biochemical oxygen demand

cal/g:

Calorie per gram

Cd:

Cadmium

COD:

Chemical oxygen demand

Cr:

Chromium

CRZ:

Coastal Regulation Zone

Cu:

Copper

DAP:

Diammonium phosphate

DIP:

Dissolved inorganic phosphate

DO:

Dissolved oxygen

E:

East

EDC:

Endocrine disrupter compounds (EDCs)

FAO:

Food and Agricultural Organization

Fe:

Iron

FSI:

Forest Survey of India

GIS:

Geographic Information System

ha:

Hectare

JMM:

Joint Mangrove Management

km2:

Square kilometer

MAP:

Management Action Plan

mg/kg:

Milligram per kilogram

mg/l:

Milligram per liter

MMR:

Mumbai Metropolitan Region

Mn:

Manganese

MSL:

Mean sea level

N:

Nitrogen

N:

North

NACA:

Network of Aquaculture Centres in Asia-Pacific

NGO:

Nongovernmental organization

Ni:

Nickel

NOAA:

National Oceanic and Atmospheric Administration

P:

Phosphorus

PAH:

Polycyclic aromatic hydrocarbons

Pb:

Lead

POP:

Persistent organic pollutants (POPs)

PPCP:

Pharmaceuticals and personal care products

ppm:

Parts per million

ppmv:

Parts per million by volume

S:

South

SEZ:

Special Economic Zone

Si:

Silicon

SPM:

Suspended particulate matter

TSS:

Total suspended solid

W:

West

Zn:

Zinc

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Sharma, D., Rao, K., Ramanathan, A. (2022). A Systematic Review on the Impact of Urbanization and Industrialization on Indian Coastal Mangrove Ecosystem. In: Madhav, S., Nazneen, S., Singh, P. (eds) Coastal Ecosystems. Coastal Research Library, vol 38. Springer, Cham. https://doi.org/10.1007/978-3-030-84255-0_8

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