Ecological monitoring of natural resources has become vital for assessing existing reserves of natural resources as well as for prevention of environmental degradation and contamination. This book compiles researches and case studies related to ecological assessment of resources and related topics such as management of various water resources, sustainable land management and agricultural policies, evaluation of industrial pollutants, etc. It aims to provide a comprehensive overview of the prominent concepts and methods of ecological assessment from different parts of the world. Through this book, an attempt has been made to further enlighten the readers about the emerging aspects in this field.