What topographic region do Chinese Water Deer live in?

"Water deer are indigenous to the lower reaches of the Yangtze River, coastal Jiangsu province (Yancheng Coastal Wetlands), and islands of Zhejiang of east-central China, and in Korea, where the demilitarized zone has provided a protected habitat for a large number. They inhabit the land alongside rivers, where they are protected from sight by the tall reeds and rushes. They are also seen on mountains, swamps, grasslands, and even open cultivated fields. Water deer are proficient swimmers, and can swim several miles to reach remote river islands."

https://en.wikipedia.org/wiki/Chinese_Water_Deer#H...

- I don't think you could apply a single topography type to that. It is a mix of flat lowland, undulating terrain, valleys, mountainous slopes and who knows what else !