Assessment of Soil Fertility Status and Nutrient Dynamics under Different Land Use Systems
Abstract
Soil fertility is a fundamental component of sustainable agricultural production, ecosystem functioning, and environmental conservation. Different land use systems significantly influence soil physical, chemical, and biological properties, thereby affecting nutrient availability, crop productivity, and long-term soil health. Rapid urbanization, deforestation, intensive agriculture, industrialization, and climate change have altered natural land use patterns, resulting in soil degradation, nutrient depletion, erosion, and declining agricultural productivity. Understanding soil fertility status and nutrient dynamics across various land use systems—including agricultural land, forests, grasslands, wetlands, agroforestry systems, and fallow lands—is essential for developing effective soil management strategies. Soil nutrients such as nitrogen, phosphorus, potassium, sulfur, calcium, magnesium, and micronutrients undergo continuous transformation through biological, chemical, and physical processes influenced by vegetation, land management, climate, and microbial activity. Modern technologies including Geographic Information Systems (GIS), Remote Sensing, Artificial Intelligence (AI), Internet of Things (IoT), precision agriculture, and digital soil mapping have improved the assessment of soil fertility by enabling accurate spatial analysis and real-time nutrient monitoring. This study evaluates soil fertility status and nutrient dynamics under different land use systems by examining soil properties, nutrient cycling processes, technological innovations, and sustainable land management practices. The study concludes that appropriate land use planning, integrated nutrient management, precision agriculture, and conservation practices are essential for maintaining soil fertility, improving crop productivity, conserving natural resources, and ensuring sustainable agricultural development under changing environmental conditions.