Abstract
The study is based on the life of the minor Han tribe in the limestone cave in the southeastern Yunnan province of China. Its members settled down nearly hundred years ago and had been earning their life by cultivating corn and wheat together with substantial hunting and gathering in the surrounding forests up until 1950s. But because of the collection of saltpeter and population increase, the surrounding forests decreased and environmental problems relating to water, landuse and high population density created pressure on the harmony of the ecology. The process of environmental degradation, the characteristics of limestone environment and the peoples' attitude towards environmental pressure are described in the paper.
