The Makalu Barun National Park exhibits a high diversity of forest types that are characteristic for the Eastern Himalayas, ranging from near-tropical dipterocarp monsoon forest on altitude to subalpine conifer stands on altitude. Forest aspects vary depending on seasonal moisture availability, temperature and snow cover at different elevations and slopes. Forests below are strongly affected by subsistence agriculture, so that only some ecologically significant stands remain there. Above forests are usually extensive since the cool, humid climate suppresses agricultural activity. Forests span five bioclimatic zones: