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Geography for GS | Doubts

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Comments

  • @Teddy, @all

    Can you explain how melting of HImalayan glaciers indirectly impact snowfall and rainfall in India. Also will there be a different impact for eastern and western HImalayas

  • Thanks @Teddy....i got the point...

    Can you explain this as well.....It is a question from 2012 prelims

    In the context of climate change, which of the following help in carbon sequesteration/storage in the soil?
    a. Contour Bunding
    b. Relay Cropping
    c. Zero tillage

    Options are
    a. 1 and 2, b. 3 only c. 123 d. none

    Please explain answer for contour bunding and relay cropping.
  • Thanks @Teddy....i got the point...

    Can you explain this as well.....It is a question from 2012 prelims

    In the context of climate change, which of the following help in carbon sequesteration/storage in the soil?
    a. Contour Bunding
    b. Relay Cropping
    c. Zero tillage

    Options are
    a. 1 and 2, b. 3 only c. 123 d. none

    Please explain answer for contour bunding and relay cropping.
    this question is indirectly asking which of the following method ll help in better crop growth..
    1.Contour Binding=yes helps in dealing with soil erosion you do planting across(transversely) gentle slopes with bunding..eg.If slope is from North to South then you do planting from East to west or vice versa on that slope with small bunds to hold the water/runover soil..
    2.Relay Cropping =plainting crops one after the another..2nd crop is planted just before the harvesting of the first=No fallowiing,weed growth is minimum,soil erosion is minimum
    3.Zero Tillage mean u don't overturn your soil..If do tillage in such condition then loose soil ll lead to soil erosion,+Water/moisture of the soil is lost also some beneficial organism inside the soil..Zero tillage=>also provides organic matter..by the leftovers of the previous crops..

    carbon sequesteration is putting back the atmospheric carbon back inside soil. plants capture carbon and when dies if we allow to get back inside soil then option B and C is correct .

    Soil erosion hinders this process . So Contour Binding is also seems correct . But it directly dosnt helps in the process. Wouldnt it be over streaching ?
    Confused ..
    8-}
  • which source is reliable for distribution of world resources??
  • @Teddy and @The_Imp

    Guys, look at the keys here....answer is B....Only zero tillage .......how do we explain this....

    Q98 in http://www.upsc.gov.in/questionpaper/2012/CSP12/pap1a.pdf
    Answer key http://www.upsc.gov.in/exams/answerkeys/2012/csp/CSP2012_P1_ANS_KEYS.pdf

    PS: personally to me, linkage of soil erosion with carbon sequesteration is not too stretched

  • The mechanism of zero tillage is that the carbon that is present in the soil in organic form is retained....whereas in a tilled farm this carbon mixes with oxygen and escapes...also in tilling tractors adds to co2 emissions...that said how will contour bunding and relay cropping help in sequestration...please explain
    @Teddy
  • @Teddy many thanks...great =D>
  • @Teddy, @all

    Please see this question from 2014 prelims

    “Climate is extreme, rainfall is scanty and the people used to be nomadic herders.” The above statement best describes which of the following regions?

    African Savannah
    Central Asian Steppe
    North American Prairie
    Siberian Tundra

    African Savannah can be rejected outright as it does not have extreme climate. But rest all three are true for steppe, prairie and Tundra. how do we do this?
  • In stepp and Praire people do cultivation they are not nomadic herders .. Fell into the trap last year :-t
    Tundra is the answer
  • Thanks @Teddy, @The_Imp

    It cleared things for me.....answer is Steppe.......

    Here is a small stupid question from polity......(apologies for asking here).....Last year a question came that asked who has the power to increase the number of judges of SC.....the answer was Parliament......

    I can understand that such a power may not be given to judiciary for lack of funds with executive.....but why not executive itself....President of India?.......why is it so important to be given to Parliament and not President....Plz explain this as well....
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