IGNOU MED 7 2018 - Why are agro-ecosystems relatively open with respect to nutrient cycle

Question

Why are agro-ecosystems relatively open with respect to nutrient cycles?

09 Mar 2018

Answer :

Word Count : 481

A nutrient cycle (or ecological recycling) is the movement and exchange of organic and inorganic matter back into the production of matter. Energy flow is an unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic. Mineral cycles include carbon cycle, sulfur cycle, nitrogen cycle, water cycle, phosphorus cycle, oxygen cycle, among others that continually recycle along with other mineral nutrients into productive ecological nutrition.

The nutrient cycle is nature's recycling system. All forms of recycling have feedback loops that uses energy in the process of putting material resources back into use. Recycling in

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