他说，森林砍伐通常由富有的农场主和人工林所有者进行，而贫困农户只能在林区中开辟肥沃的农田。
He says deforestation is often undertaken by wealthy ranchers and plantation owners and poor households can carve productive farmlands out of the forest.
樟子松人工林枝条丢失年轮数随着总着枝深度的增加而增多，有87.6%的枝条没有年轮丢失现象。
Lost rings increased with DINC increasing and 87.6 percent of the branches was not losing rings in Mongolian pine plantation.
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