Surface Water Nitrogen Load Due to Food Production-Supply System in South Asian Megacities: A Model-based Estimation | Chapter 13 | Advances and Trends in Agricultural Sciences Vol. 1
Food production and supply system contributed more than 90% of the nitrogen originated in south Asian megacities that pollute the surface water. Five megacities of three South Asian countries were considered in this study. These countries are developing and their population is increasing tremendously. All the five megacities are very densely urbanized. A numerical model has been used to calculate the anthropogenic nitrogen load on the environment. FAO statistics on fertilizer consumption and food balance data sheet has been used to calculate the nitrogen load. Human waste plays the vital role in nitrogen production of south Asian megacities. So, in these contexts the nitrogen load for all the study areas extremely harmful for environment and ever increasing population also increased the load of nitrogen on surface water produced from human waste which also very awful for the environment. So, a proper sewage treatment facility is compulsory for all the study areas. Four finding...