Who wrote flying flowers and light cold?

The poem "flying flowers light cold" is:

The sun sets, Cangshan Lanzhou is small, and there is no sunset to write a clear spring.

Last year, leaves were lost by fate, but stagnant water flooded and people died.

Note that this poem was not written by Li Bai. As soon as the poem "flying flowers are light and cold" appeared on the internet, it caused great repercussions. This poem is not a good poem. Even though I know it was not written by Li Bai, its meaning has really attracted many Japanese people who hate China to quote it.

Brief comments:

In the past year, when Junichiro Koizumi was in the happiest mood, this song was called "Flying Flowers Lighten the Cold". By separating the beginning and the end of the seven-character quatrain, a paragraph can be formed: "If Japan dies, Koizumi will also die."

This poem is written in a general way, without a flat style and even the title has no charm. Moreover, Shixian is not a street aunt, and he should pay attention to style when swearing. How can it be insulting? Looking through the whole Tang poetry, I can't find this poem. There is no doubt that it is a fake of modern people.

The above contents refer to Baidu Encyclopedia-flying flowers are light and cold.