Landscape pattern and sustainability of a 1300-year-old agricultural landscape in subtropical mountain areas, Southwestern China

The Hani terrace landscape located in the mountainous areas of Southwestern China has a history of 1300 years and is a classic example of human-environment harmony. This study investigates the spatial distribution and pattern characteristics of land cover in the landscape using geographical information system and remote-sensing techniques. With the synthetic consideration of both physical and cultural factors, the ecological stability of the landscape was discussed. The results showed that terrace' and forest' are dominant in the landscape accounting for 43.80% and 44.90% of the total area, respectively. A clear vertical land-cover distribution of higher forest-middle village-lower terrace-lowest river' can be found on steep slopes. The local climate and its variation with elevation are essential for the stable local water cycle, and the spatial layout of the landscape elements allows for effective material and energy flow within the landscape. Moreover, the obligatory forest and water resource conservation due to the unique history and culture of Hani adds a social layer of protection. The sustainable development of the Hani landscape is expected to provide valuable insights for the present land and environmental management.