关键词: 植被-气候关系, 生物温暖指数, 生物寒冷指数, 生物干湿度指数, 生物量, 铁尾矿, 有机质, 改良措施, 理化性质

Abstract: Based on the concept of Kira's thermal indices and aridity/humidity index by the limit of monthly average temperature 5℃, the biological thermal indexes by the limit of monthly average temperature 10℃, including biological warmth index (BWI) and coldness index (BCI),are put forward,and Kira's aridity/humidity index is modified to biological aridity/humidity index (BK) . According to the records of 689 meterological stations,relationships between the distribution of main vegetation types of China and the thermal and aridity/humidity factors are analyzed. There exists a definite interactions between vegetation and climate. The scatter graphs of biological warmth index, coldness index and aridity/humidity index kindly show the relationship and pattern between vegetation types and climate. The biological warmth index (>10℃) not only indicates to the geographical distribution of forestry vegetation and classification of thermal climatic belts in eastern China, but also indicates the relations between vegetation and climate in alpine and subalpine regions of southwest China. Biological coldness index is a good index to distinguish the southern subtropical and tropical belts. Biological aridity/humidity index synthetically got from biological warmth index and precipitation has a kind value to analyse the relations between vegetation and water thermal factors in arid and semiarid areas of northwest China and also in the whole country.

Key words: Vegetation climate interaction, Biological warmth index, Biological coldness index, Biological aridity/humidity index, physico-chemical properties, biomass, organic matter, improvement effect, iron tailing