在升温环境下武夷山地区富铝土演化预测

摘要

Rich aluminum soil is the main soil type in China tropical and subtropical area ,different water hot status and different ratio decided that soil had different physico-chemical nature.Rich aluminum soil evolution of Wuyi Mountain area was forecasted under warming environment ,it was conducive to exploit the soil resources ,and had great and far-reaching significance for the protection of world natural and cultural heritage of Wuyi Mountain.By field practice investigation and indoor test analysis ,we got physico-chemical nature data of Wuyi Mountain aluminum soil.By finishing related meteorological information about years average temperature of Nanping and Wuyishan City ,compared with organic matter content and pH value of rich aluminum soil-a layer at different time stage ,evolution situation of Wuyi Mountain aluminum soil was forecasted under warming environment. The results were as following:①temperature around Wuyi Mountain area had warming trend;②soil organic matter content were declining in red ,yellow red,brown of yellow red,and yellow. The pH value was increasing to weak acid direction;③red soil,yellow-red soil and yellow soil of Wuyi Mountain area would separately evolute to latosol red soil ,red soil and yellow soil;④latosol red soil would appear.%富铝土是我国热带、亚热带地区主要的土壤类型，不同的水热状况及其配比不同，决定土壤具有不同的理化性质，对在升温环境下武夷山地区富铝土演化进行预测，有利于更好地开发利用该地土壤资源，对于保护武夷山世界自然和文化遗产有着重要而深远的意义。通过对武夷山富铝土的野外实习考察与室内试验分析，得到武夷山富铝土的理化性质数据，并通过整理南平市、武夷山市的年平均气温的相关气象资料，在对比不同时间阶段富铝土A层的有机质含量和pH值的基础上，预测在升温环境下武夷山富铝土的演化情况，结果表明：①武夷山地区周边的气温有逐年增加的趋势；②随着时间的推移，红壤、黄红壤、棕化黄红壤、黄壤A层土壤有机质含量不断减少， pH值不断增大，向弱酸性方向发展；③武夷山地区的红壤、黄红壤和黄壤将会分别向砖红壤性红壤、红壤以及黄红壤方向演化；④将出现砖红壤性红壤。