relief of the land

题目

relief of the land
有人解释为减免土地,也有人解释为调剂土地.我怎么觉得都这么别扭,什么是减免土地或调剂土地?
这是整句话：
when we look at drainage patterns,we can draw conclusions about the structural formation and relief of the land as well as the climate.

答案

relief of the land -----地形、地貌
The relief of Dalian City belongs to hill region.大连城市区在地形地貌上属丘陵.