In southeast mountain area of China, the vegetation coverage is very high, it is much difficult to survey soils by remote sensing.

我国东南山区植被覆盖率高，进行土壤遥感调查困难重重。

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Climbing the six Abels in the brutal Western Arthurs Range, located inside the World Heritage-listed Tasmanian Wilderness Area that covers 20% of the island, necessitates a walk through such difficult mountain terrain that it can take walkers up to two weeks to hike what is often described as the most difficult bushwalk in Australia.

BBC: Tasmania's greatest mountain quest