Culture Arena
China · Nature & Wildlife · Hard
Which karst sinkhole forest, called the 'Tiankeng' (Heavenly Pit) and located in Guangxi's Leye County, is a massive dolomite and limestone sinkhole over 600 metres deep that harbours a unique ecosystem with species found nowhere else?
Answer: Xiaozhai Tiankeng — Xiaozhai Tiankeng is the world's largest sinkhole by depth (662 m) and volume. Its vertical walls isolate an ancient forest at the bottom where scientists discovered previously unknown plant and insect species in a pristine, sunken ecosystem.
- A Erawan sinkhole
- B Cenote Angelita
- C Dean's Blue Hole
- D Xiaozhai Tiankeng ✓
Xiaozhai Tiankeng is the world's largest sinkhole by depth (662 m) and volume. Its vertical walls isolate an ancient forest at the bottom where scientists discovered previously unknown plant and insect species in a pristine, sunken ecosystem.