Problems in Climates and Agroclimates for Mountain Developments in Xishuangbanna, South Yunnan, China

Abstract

The present paper deals first with conditions of air temperature, rainfall, fog, sunshine hours, winds etc. and secondly their impact on the cultivation of rubber, tea, rice, sugarcane etc. Cold waves occur not infrequently, causing serious damage to the tropical crops mentioned above. Favorable temperature conditions apart from winter and summer on the slopes are found in the zone between 1, 300m and 1, 650 m a. s. l. The bottoms of valleys and basins have different conditions from the surrounding mountain slopes, which may be utilized for different crop cultivation or for a different harvesting season. Spring drought is serious in some years. Irrigation is needed as a countermeasure.