and that of tightly combined residues (H3) was similar with amorphous Al content; but no significant relation was found between different combined residues and soil pH, clay content and various combined humus carbon contents.

• 紧结态甲磺隆残留物的相对百分比(H3)与无定形铝含量变化规律基本相似；但不同结合态甲磺隆残留物的相对百分比与土壤的pH值、黏粒含量及各结合形态腐殖物质含碳量之间的关系不是很明显.