摘要
不同肥力水平的红壤、冲积土种植柑桔、龙眼、荔枝、香蕉、枇杷等主要果树后,其土壤酶活性与微生物特性有较大差异,并随季节而变化.红壤果园土壤酶活性依次为柑桔园>香蕉园>龙眼园>荔枝园>枇杷园,冲积土果园土壤酶活性依次为柑桔园>龙眼园>香蕉园>荔枝园>枇杷园.两种土壤的微生物总数均为柑桔园>香蕉园>龙眼园>荔枝园>枇杷园.这种生物特性与土壤肥力的高低呈显著的正相关,它左右土壤肥力的演变过程.
The enzymes activities and microbe properties in red soils and alluvial soils with various fertility which planted citrus, logan, litchi, banana or loquat showed much different, and varied with seasons. Soil enzyme activities in rhizosphere were in the order citrus> banana> longan> litchi> loquat orchard soils derived from red soil, while citrus> longan> banana>litchi> loquat orchard soils derived from alluvial soil. The order of microbe quantity including bacteria, fungi and actinomyces in rhizosphere soil was: citrus> banana> longan> litchi> loquat orchard soils derived from both red soil and alluvial soil. The microbe properties were closely positively correlated with the soil fertility and influenced the development of the soil fertility.
关键词
果园
土壤
酶
微生物
orchard soils
enzyme activities
microbe properties
soil fertility
