地表以肥沃的黑土著称的是（　　）

阅读下面这首诗，然后回答问题。
                                                                                   日暮倚杖水边^①   （金）王寂
                                                                              水国西风小摇落，撩人羁绪乱如丝。
                                                                              大夫泽畔行吟处，司马江头送别时。
                                                                              尔辈何伤吾道在，此心惟有彼苍知。
                                                                              苍颜华发今如许，便挂衣冠已慢迟。