麋鹿苑鱼类以江河平原鱼类为主，其次还有东洋区印度平原鱼类，缺少北温带北部的北方平原鱼类。

The fishes of Milu Park is common river species and few Oriental Indian plain species, lack plain fishes of the northern north Temperate Zone.

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华北地区地处北温带气候区。

The north part of China belongs to northern temperate Zone.

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该盆地地处我国北温带大陆性干旱-半干旱气候区，总体上降雨稀少、蒸发强烈，生态环境脆弱。

This basin is located in north China continental arid and semi-arid climate zones . Low rainfall and strong evaporation, weak ecological environment in general.

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