erosion scar meaning in Chinese

冲刷痕
侵蚀痕

But then , with the intention of bringing trees back to the territory , serious efforts were made by the government to green the countryside . however , the hills - and even some valleys - were dominated by badlands and erosion scars
不过，当年的山岭，以至部分山谷，皆遍布劣地和侵蚀遗痕加上这崎岖不平之地主要由花岗岩组成，表土养分易于流失，凡此种种，都对植树工作构成严峻的考验。