• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

CBSE Tuts

CBSE Maths notes, CBSE physics notes, CBSE chemistry notes

  • NCERT Solutions
    • NCERT Solutions for Class 12 English Flamingo and Vistas
    • NCERT Solutions for Class 11 English
    • NCERT Solutions for Class 11 Hindi
    • NCERT Solutions for Class 12 Hindi
    • NCERT Books Free Download
  • TS Grewal
    • TS Grewal Class 12 Accountancy Solutions
    • TS Grewal Class 11 Accountancy Solutions
  • CBSE Sample Papers
  • NCERT Exemplar Problems
  • English Grammar
    • Wordfeud Cheat
  • MCQ Questions

Nutrient Cycles through the Environment

One of the most fascinating Biology Topics is the study of the brain and behavior.

Nutrient Cycle – Definition, Types

Nutrient cycling involves the following three aspects:
1. Input of Nutrients: An ecosystem receives nutrients from an external source. It stores them for further use through biological processes.

2. Output of Nutrients: Nutrients also move out of an ecosystem and many of them become input to another ecosystem.

3. Internal Nutrient Cycling: Soil is a reservoir of nutrients. Nutrients are continuously regenerated and stored in the soil in forms available to plants. Regeneration of nutrients is done by decomposers (e.g., bacteria, fungi, and actinomycetes) by the process of decomposition of detritus. These nutrients are stored in the soil for re-utilization. Plants absorb large amounts of nutrients from the soil.

Nutrient Cycles through the Environment

The process of nutrient regeneration and absorption occurs simultaneously due to which a dynamic state of nutrients in the soil is maintained. The process of transfer and absorption of nutrients from the soil, through the plants is called uptake. During growth, these absorbed nutrients are metabolically incorporated into plants. Litter fall of vegetation, animal remains, fecal matter of animals (forming above-ground detritus) and dead plant roots (forming below-ground detritus) are acted upon by decomposers to, bring back the nutrients to the soil (regeneration of nutrients).

  • Biosphere. That part of Earth’s environment in which living organisms are found.
  • Detritus. Dead or partially decomposed plant and animal matter (i.e., non-living organic matter).
  • Ecosphere. All the living organisms on Earth interact with the physical environment as a whole.
  • Actinomycetes. A kind of filamentous bacteria.

When the uptake of nutrients is more than the amount of nutrients recycled (e.g., in a young-growing forest), a part of the uptake is retained in the standing crop. This retention of nutrients in the standing crop results in the increase in nutrient contents of the ecosystem. Therefore, Retention = Uptake – Recycle

Rates of nutrient uptake, recycling, and retention vary greatly in different ecosystems. The number of different nutrients/weights of biomass or soil can be determined by a number of chemical methods. We can calculate the nutrient budget of the ecosystem by determining changes in the nutrient concentrations and biomass with time.

Primary Sidebar

NCERT Exemplar problems With Solutions CBSE Previous Year Questions with Solutoins CBSE Sample Papers
  • The Summer Of The Beautiful White Horse Answers
  • Job Application Letter class 12 Samples
  • Science Lab Manual Class 9
  • Letter to The Editor Class 12 Samples
  • Unseen Passage For Class 6 Answers
  • NCERT Solutions for Class 12 Hindi Core
  • Invitation and Replies Class 12 Examples
  • Advertisement Writing Class 11 Examples
  • Lab Manual Class 10 Science

Recent Posts

  • Understanding Diversity Question Answer Class 6 Social Science Civics Chapter 1 NCERT Solutions
  • Our Changing Earth Question Answer Class 7 Social Science Geography Chapter 3 NCERT Solutions
  • Inside Our Earth Question Answer Class 7 Social Science Geography Chapter 2 NCERT Solutions
  • Rulers and Buildings Question Answer Class 7 Social Science History Chapter 5 NCERT Solutions
  • On Equality Question Answer Class 7 Social Science Civics Chapter 1 NCERT Solutions
  • Role of the Government in Health Question Answer Class 7 Social Science Civics Chapter 2 NCERT Solutions
  • Vital Villages, Thriving Towns Question Answer Class 6 Social Science History Chapter 9 NCERT Solutions
  • New Empires and Kingdoms Question Answer Class 6 Social Science History Chapter 11 NCERT Solutions
  • The Delhi Sultans Question Answer Class 7 Social Science History Chapter 3 NCERT Solutions
  • The Mughal Empire Question Answer Class 7 Social Science History Chapter 4 NCERT Solutions
  • India: Climate Vegetation and Wildlife Question Answer Class 6 Social Science Geography Chapter 8 NCERT Solutions
  • Traders, Kings and Pilgrims Question Answer Class 6 Social Science History Chapter 10 NCERT Solutions
  • Environment Question Answer Class 7 Social Science Geography Chapter 1 NCERT Solutions
  • Understanding Advertising Question Answer Class 7 Social Science Civics Chapter 7 NCERT Solutions
  • The Making of Regional Cultures Question Answer Class 7 Social Science History Chapter 9 NCERT Solutions

Footer

Maths NCERT Solutions

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 11 Maths
NCERT Solutions for Class 10 Maths
NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 7 Maths
NCERT Solutions for Class 6 Maths

SCIENCE NCERT SOLUTIONS

NCERT Solutions for Class 12 Physics
NCERT Solutions for Class 12 Chemistry
NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 11 Chemistry
NCERT Solutions for Class 10 Science
NCERT Solutions for Class 9 Science
NCERT Solutions for Class 7 Science
MCQ Questions NCERT Solutions
CBSE Sample Papers
NCERT Exemplar Solutions LCM and GCF Calculator
TS Grewal Accountancy Class 12 Solutions
TS Grewal Accountancy Class 11 Solutions