Also located here is Pollardstown Fen, the largest fen in Ireland. Supreme commander Tian Fen opposed Han intervention. There are four types of mire&colon; bog, fen, marsh and swamp. The island has five principal vegetation formations&colon; grassland, herbfield, fen, bog and feldmark. The Kent beaver colony lives in a fenced enclosure at the wetland of Ham Fen. The fen and jiao denominations have become increasingly unnecessary as prices have increased. One "jiao" is divided into 10 "fen" (). Ai Fen (China), Xie Linka (China) for Asian women corona fighters. Holme Fen in Cambridgeshire, is around below sea level. Elgin boasts two highly protected nature preserves, the Bluff Spring Fen and Trout Park. Endangered species such as the fen violet will be seeded. It is situated along the banks of the Fen River. Fenmen known as the Fen Tigers tried to sabotage the drainage efforts. The "Strabrechtse Heide" holds also the largest fen of the Netherlands. He also starred in the highly acclaimed TV drama "Penda's Fen" (1974) by David Rudkin.