The water storage capacity of the forest is very strong, and 10,000 hectares of forest land is equivalent to a small reservoir with a storage capacity of 3 million cubic meters. The forest area of Leshan, Sichuan is about 450,000 hectares, which is equivalent to a reservoir with a storage capacity of tens of thousands of cubic meters?
森林的蓄水能力很强，1万公顷林地相当于一座300万立方米库容的小型水库．四川乐山的森林面积约45万公顷，相当于一座多少万立方米库容的水库？
<gadget id="calculator">45 * 300</gadget>
<output>13_500</output>

<result>13_500</result>