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  • Deforestation of pine wood trees on a hillside at Gibbon, in Yellowstone National Park, Wyoming. Fires on occasion rage through the forest leaving behind burnt and fallen trees which are left to decompose naturally, and to regrow over time. This is how the park is run, leaving nature to take it's natural cause, not intervening with nature.
    2007_08_07_Deforestation at Gibbon_A.jpg
  • Fallow fields, slash and burn landscape, Luang Prabang province, Lao PDR. Slash and burn cultivation or ‘hai’ in Lao PDR consists of cutting the natural vegetation, leaving it to dry and then burning it for temporary cropping of the land, the ash acting as a natural fertiliser. To rebuild the soil fertility after growing crops on a shifting cultivation plot, farmers ‘abandon’ that plot and allow vegetation to regrow for a number of years.  This is called the ‘fallow period’.  In the meantime, they grow crops on other new plots. Shifting cultivation practices, although remarkably sustainable and adapted to their environment in the past, have come under increasing stress in recent decades and are now starting to be a major problem in Lao PDR, causing widespread deforestation and watershed degradation.
    20-02_1_1.jpg
  • Fallow fields, slash and burn landscape, Luang Prabang province, Lao PDR. Slash and burn cultivation or ‘hai’ in Lao PDR consists of cutting the natural vegetation, leaving it to dry and then burning it for temporary cropping of the land, the ash acting as a natural fertiliser. To rebuild the soil fertility after growing crops on a shifting cultivation plot, farmers ‘abandon’ that plot and allow vegetation to regrow for a number of years.  This is called the ‘fallow period’.  In the meantime, they grow crops on other new plots. Shifting cultivation practices, although remarkably sustainable and adapted to their environment in the past, have come under increasing stress in recent decades and are now starting to be a major problem in Lao PDR, causing widespread deforestation and watershed degradation.
    20-07_1_1.jpg
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