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  • a)
    संपूर्ण जैव मंडल का NPP लगभग 170 अरब टन कार्बनिक पदार्थ है।
  • b)
    NPP = GPP - R
  • c)
    NPP एक जलीय पारिस्थितिकी तंत्र में प्रकाश और उपलब्ध पोषक तत्वों द्वारा सीमित है।
  • d)
    उष्णकटिबंधीय वर्षावन के लिए NPP बहुत अधिक होता है।
Correct answer is option 'C'. Can you explain this answer?
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?a) NPP 170 b)NPP = GPP - Rc)NPP d) NPP ...
GPP वह दर है जिस पर बायोमास या जैव खनिज उत्पादकों द्वारा इकाई आवर्त अवधि में प्रति यूनिट क्षेत्र में प्रकाश संश्लेषण के दौरान उत्पन्न होते हैं।
नेट मुख्य उत्पादकता (NPP): इसे सकल मुख्य उत्पादकता माइनस रेस्पिरेटरी लॉस (R) के रूप में स्पष्ट किया गया है।
NPP = GPP-R 
प्रकाश और खनिज पोषक तत्वों की उपलब्धता प्रकाश संश्लेषण की प्रक्रम को प्रभावित करती है क्योंकि वे खाद्य के उत्पादन के लिए आवश्यक कच्चे माल हैं। इकाई जलीय पारिस्थितिकी तंत्र में, नाइट्रोजन उत्पादकता को प्रभावित करने वाले पोषक तत्वों को सीमांत करता है। इसके अलावा, जलीय पारिस्थितिकी तंत्र की उत्पादकता प्रकाश द्वारा सीमांत है जो जल की गहराई में वृद्धि के साथ घट जाती है।
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?a) NPP 170 b)NPP = GPP - Rc)NPP d) NPP ...

Net Primary Productivity (NPP)

NPP is the rate at which energy is stored as organic matter after respiration by plants. It is an essential indicator of the productivity and health of an ecosystem.

Calculation of NPP

- The formula to calculate NPP is NPP = GPP - R, where GPP stands for Gross Primary Productivity and R stands for respiration.
- Gross Primary Productivity (GPP) is the total amount of organic matter produced by plants through photosynthesis.
- Respiration (R) is the process by which plants use some of the energy produced through photosynthesis for their own metabolic functions.

Significance of NPP

- NPP is crucial for estimating the amount of energy available to support the various trophic levels in an ecosystem.
- It helps in understanding the overall health and functioning of an ecosystem.
- NPP is also used to assess the impact of environmental factors such as climate change and human activities on ecosystem productivity.

Therefore, in the context of the given options, NPP is represented by the formula NPP = GPP - R. This equation highlights the importance of both photosynthesis (GPP) and respiration in determining the net productivity of an ecosystem.
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?a) NPP 170 b)NPP = GPP - Rc)NPP d) NPP Correct answer is option 'C'. Can you explain this answer?
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