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  2. Thinning - Wikipedia

    en.wikipedia.org/wiki/Thinning

    Thinning from below – this low thinning can be split into 4 Grades: A Grade is a very light thinning, that removes all overtopped trees Kraft crown class 4 and 5. B Grade is a very light thinning that removes overtopped trees and intermediates which are Kraft Crown class 4,5 and some 3s, C Grade and D Grade are a moderate and heavy thinning respectively removing anything that will not lead ...

  3. Deforestation in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Deforestation_in_the...

    Rapid population growth, unregulated logging concessions especially during Ferdinand Marcos' regime, illegal logging and mining, and destructive typhoons have been cited as major reasons for deforestation in the country. Deforestation affects biodiversity in the Philippines and has long-term negative impacts on the country's food production. [3]

  4. Environmental issues in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    The Philippines is projected to be one of the most vulnerable countries to the impacts of climate change, [5] which would exacerbate weather extremes. As the Philippines lies on the Pacific Ring of Fire, it is prone to natural disasters, like earthquakes, typhoons, and volcanic eruptions.

  5. Nitrogen deficiency - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_deficiency

    This makes it crucial that the fields have enough nitrogen in the soil to grow a prosperous crop. [5] However, excess nitrogen in the soil can also be harmful to potato production, influencing how well the roots are able to develop, and delays can occur in tuber initiation during the tuberization stage of potato growth.

  6. Agriculture in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Agriculture_in_the_Philippines

    Agriculture in the Philippines is a major sector of the economy, ranking third among the sectors in 2022 behind only Services and Industry. Its outputs include staples like rice and corn, but also export crops such as coffee , cavendish banana , pineapple and pineapple products, coconut , sugar , and mango . [ 1 ]

  7. Effects of climate change on agriculture - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    The increased atmospheric CO 2 level from human activities (mainly burning of fossil fuels) causes a CO 2 fertilization effect. This effect offsets a small portion of the detrimental effects of climate change on agriculture. However, it comes at the expense of lower levels of essential micronutrients in the crops.

  8. 2022–2023 Philippine onion crisis - Wikipedia

    en.wikipedia.org/wiki/2022–2023_Philippine...

    It is a seasonal crop, growing between the rainy months of September and December. Meanwhile, its harvest season begins as early as December and ends in June. [6] The Philippines consumes an average of 17,000 metric tons of onion per month. [7] In August 2022, the country was predicted to experience a shortage of onion and garlic. [8]

  9. Grassland degradation - Wikipedia

    en.wikipedia.org/wiki/Grassland_Degradation

    Grassland in Europe. Grassland degradation, also called vegetation or steppe degradation, is a biotic disturbance in which grass struggles to grow or can no longer exist on a piece of land due to causes such as overgrazing, burrowing of small mammals, and climate change. [1]