From shortage to stress on earth: a century of changes in the nitrogen cycle

Quimica nova

Santos, Oalas Aparecido Morais dos¹  Cardoso, Arnaldo Alves²  Garcia, Gabriel² 

[1] Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso, Santo Antônio do Leverger, Brasil;Universidade Estadual Paulista, Araraquara, Brasil

关键词: nitrogen cycle;    reactive nitrogen;    intensive agricultural.;   

DOI  :  10.1590/S0100-40422013000900032

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Heavy metals and pesticides are usually associated with the main problems humankind has created in the natural environment. However, compounds with characteristics of essential macronutrients are causing serious environmental changes that could intensify, compromising the diversity of life on the planet. This is the case of nitrogen compounds, produced by industrial processes for use in intensive agriculture in addition to those unwittingly produced from human activities, available in excess in the environment. These compounds warrant greater attention from researchers in various fields of knowledge and public agencies for environmental control, toward minimizing their availability in the environment, thereby returning conditions closer to the natural environmental balance of the planet.

【 授权许可】

CC BY