(1) 洞庭詩 菅原文時 --Autumn--
Poem of "Lake DongTing" by Sugawara Fumitoki (Jingyuan Wenshi)

巖前木落商風冷，
The trees in front of the rocks shedding their leaves and the winds of this autumn breezing chilly，
Rock front trees - falling leaves;  autumn winds - wafting cold,

浪上花開楚水清。
The surface of Lake DongTing are rippling like many blooming flowers and the water is clear.
Lake Dong Ting waves, rippling flowers, water's clear.

青草舊名遺岸色，
The green grass beside the lake reminds me its ancient name of Lake GreenGrass，
Green green grasses on its banks, remnants of its ancient name.

黃軒古樂寄湖聲。
and I hear the music by ancient Emperor Huang in the sounds of waves lapping the shore. 
Sounds of the Lake, ancient music of the Yellow Emperor1 to my ears.

1.  Huang Di is often translated as Yellow Emperor.

Explanation：

Lake Dong Ting is in the northen district of Hunan province in of China. "Green Grass", if literally  if translated ltierally, is "Blue Green grass(青草) should be "blue grass".   but I just thought "green" is proper a better choice in for English here reading. The 4th line is based on the Chinese ancient text "帝張咸池之樂於洞庭之野"(荘子).  You need to translate this line.

(2) 大庾嶺 菅原文時 --Spring--
Great Yu Mountain Range by Sugawara Fumitoki (Jingyuan Wenshi)

五嶺蒼蒼雲往來，
The five peaks are full of green，the clouds are drifting sedately above，
Clouds swirling amongst the green green peaks of five,

但憐大庾萬株梅。
and especially appreciate its innumerable beautiful plum flowers of this Great Yu. 
How I cherish thee - plum blossom masses on Mt. of Yu.

誰言春色從東到，
Who said the spring colors comes from the east?
Who sayeth colors of spring begin in the east?

露暖南枝花始開。
(Actually) the southen branches of flowers bloom first with their warm dews.
When blooms burst forth on southern branches in dewy warmth.

Explanation：
Mt Yu Mountain is located in Guangdong province in of China. Zhang(678-740) in of the T'ang Dynasty opened cleared the mountain and planted plum trees. It is commonly said that "the spring comes from east" is a common saying in ancient times, but here the writer expressed his own opinion differing from this as an entertainment here as rhetorical question. 

Writer： Sugawara Fumitoki（菅原文時 899-981，Japan，Heian period）
These poems are supposed to be composed in his imagination from the Chinese literatures from China. Because  as there is no record that he ever visited China.