摘要
研究了菜园和荒地土壤中蚯蚓的数量动态变化和空间分布,结果表明菜园的蚯蚓密度从3～6月逐渐减少,荒地土壤中蚯蚓密度从3～6月逐渐增多,而两者的垂直分布都是从上到下逐渐减少。在菜园和荒地土壤中的环境因素也具有明显的季节动态变化。灰色关联分析表明,影响菜地的蚯蚓密度的主要因素是含水量和pH值,而影响荒地蚯蚓密度的主要因素是土壤温度和含水量。
The study on relationship between earthworm density and the development of soil environmental factors in the kaleyard and wasteland. It was studied by grey connected analyses. The primary and secondary factors of influencing the variation were founded out. The two grey mode was developed to detect the relationship among soil pH-value, moisture and temperature which depends on two ecology factors and earthworm density.
出处
《常熟高专学报》
2002年第4期43-45,共3页
Journal of Changshu College
