ParyavaranPushan · Class 9-10
Ghaas ka maidan aur carbon: kyun 'wasteland' galat naam hai
Ped lagana achha hai, toh ghaas ke maidan mein ped lagane ki koshish nuksaan kaise kar sakti hai?
Socho pehle… phir dekho jawab
Kyunki ped ghaas ko chhaya mein daba dete hain aur ground-nesting chidiyon ke shikaariyon ko chhupne ki jagah dete hain. Aur carbon sirf pedon mein hi nahi, ghaas ki mitti mein bhi jama hota hai.
Mechanism: puraane grasslands mein aise paudhe hote hain jo sansaadhan kam kharch karte hain. Jab yeh ujad jaate hain, mitti ke poshak tatva aur pH badal jaate hain, toh naye grasslands mein lambe paudhe, kam kism aur bahar ke weedy annuals aa jaate hain — aur yeh sau saal se zyada mein bhi puraane jaise nahi bante.
Term aur number: grasslands duniya ke zameeni carbon ka lagbhag ek-tihai sambhaalte hain. India mein duniya ke lagbhag 15% pashu sirf lagbhag 4% zameen par hain — isliye charagaah aur grazing ka sawal bada hai.
So what: solar park ya plantation ke liye khuli ghaas ko 'khaali zameen' maan lena galat hai. Behtar hai ki pehle sach mein bigdi zameen, chhat aur nahar ke upar jagah dekhi jaaye. Par counter-view bhi hai: kuch grasslands bigde jungle hote hain, isliye classification site ke hisaab se honi chahiye.
Ghar pe try karo
Ek 2-column table banao: 'Puraana grassland' aur 'Secondary grassland' — paudhon ki kism, mitti, jeev. Phir ek line: solar park kahan lagana chahiye aur kyun?
Wow!
Ped-lagao abhiyaan mein ghaas ke maidan mein ped lagana carbon ke hisaab se bhi ulta ho sakta hai, kyunki ghaas ki mitti bhi carbon jama karti hai!
3 sawaal
- Grasslands duniya ke zameeni carbon ka lagbhag kitna hissa sambhaalte hain?
Jawab dekho
Ek-tihai. Vaigyanik kehte hain ki lagbhag ek-tihai zameeni carbon grasslands mein hai.
- Ghaas ke maidan mein ped lagana nuksaan kaise kar sakta hai?
Jawab dekho
Ped ghaas ko chhaya mein daba dete hain. Ped ghaas ko chhaya mein daba dete hain aur shikaariyon ko jagah dete hain.
- India mein duniya ke lagbhag kitne% pashu sirf lagbhag 4% zameen par hain?
Jawab dekho
15%. India mein lagbhag 15% pashu sirf lagbhag 4% zameen par hain.
NCERT se jodo: NCERT Class 9 Science — natural resources; NCERT Class 10 Science — our environment