Thesis Abstract

Abstract
Microplastics, tiny plastic particles less than 5 mm in size, have become a major environmental concern due to their widespread presence and potential negative impacts on ecosystems. This thesis investigates the impact of microplastics on soil health in agricultural ecosystems. The study aims to assess the levels of microplastics in agricultural soils, determine their sources, and evaluate their effects on soil properties and microbial communities. Chapter One provides an introduction to the research topic, including the background of the study, problem statement, objectives, scope, significance, and structure of the thesis. The chapter also includes definitions of key terms related to microplastics and soil health. Chapter Two presents a comprehensive literature review on microplastics in soil, their sources, distribution, and effects on soil health. The chapter discusses previous studies on microplastics in agricultural ecosystems and highlights gaps in current knowledge that this research aims to address. Chapter Three outlines the research methodology, including sampling techniques, laboratory analysis methods, and data interpretation approaches. The chapter describes how soil samples will be collected from agricultural fields, processed for microplastic analysis, and assessed for soil health indicators. Chapter Four presents the findings of the study, including the levels of microplastics detected in agricultural soils, their characteristics, and potential sources. The chapter also discusses the effects of microplastics on soil properties such as nutrient content, moisture retention, and microbial activity. Chapter Five offers a conclusion and summary of the thesis, highlighting the key findings, implications for soil health and agricultural practices, and recommendations for future research. The study contributes valuable insights into the impact of microplastics on soil health in agricultural ecosystems and underscores the importance of addressing this emerging environmental issue. Keywords Microplastics, Soil Health, Agricultural Ecosystems, Environmental Impact, Soil Microorganisms.

Thesis Overview

The project titled "Investigating the Impact of Microplastics on Soil Health in Agricultural Ecosystems" aims to address the emerging concern of microplastic pollution in agricultural soils and its potential impact on soil health and ecosystem sustainability. Microplastics, defined as plastic particles less than 5mm in size, have been increasingly recognized as a global environmental issue due to their widespread distribution and persistence in various environmental compartments, including soils. The research will focus on understanding the sources, distribution, and fate of microplastics in agricultural soils, as well as their potential effects on soil properties, microbial communities, plant growth, and overall ecosystem functioning. By investigating these aspects, the study aims to contribute valuable insights into the potential risks associated with microplastic contamination in agricultural ecosystems and provide a scientific basis for developing effective mitigation strategies. The research methodology will involve field surveys to assess the presence and abundance of microplastics in agricultural soils, laboratory experiments to evaluate their effects on soil physicochemical properties and microbial communities, and greenhouse studies to investigate the impact of microplastics on plant growth and nutrient uptake. Advanced analytical techniques, such as microscopy and spectroscopy, will be employed to characterize the size, shape, and composition of microplastic particles in soil samples. The findings of this research are expected to enhance our understanding of the interactions between microplastics and soil ecosystems, shed light on the potential risks posed by microplastic pollution in agricultural soils, and inform the development of sustainable management practices to minimize the adverse effects of microplastics on soil health and ecosystem resilience. Overall, this project represents a significant contribution to the field of environmental science by addressing a critical gap in knowledge regarding the impact of microplastics on soil health in agricultural ecosystems. The outcomes of this research have the potential to inform policy decisions, guide agricultural practices, and raise awareness about the importance of mitigating microplastic pollution to ensure the long-term sustainability of agricultural systems and environmental health.