The ionospheric up flowing ion mainly distributes in the near geo space and its flux has a negative gradient versus geo center distance.

上行离子主要分布在近地空间，其通量密度相对于地心距离呈负梯度。

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However, wheat mainly distributes in calcareous soil area which is zinc (Zn) deficient or potentially Zn-deficiency, resulting in a lower Zn concentration of wheat grain.

但由于小麦主要种植在我国北方大部分缺锌或潜在缺锌的石灰性土壤上，导致小麦籽粒锌缺乏现象比较普遍。

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Debris flow in Dandong Prefecture mainly distributes in three counties of Kuandian, Fengcheng and Youyan. The area subject to debris flow occupies 58. 3% of the total area.

丹东地区的泥石流，主要分布在宽甸、凤城、岫岩三县，泥石流活动影响面积占全区。总面积的58.3%。

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Oxfam, which distributes food in Hazarajat, a central region populated mainly by the Shia Hazara minority, says little has arrived.

ECONOMIST: The race to get food into Afghanistan before winter is on