在土壤学中常常引用“坚实度”的概念来说明土壤的物理状况,特别是耕性状况,但对于“坚实度”这一术语却从未下过明确的定义。从字义上看,“坚”者,抗压强度之意;“实”者,紧实程度之意,所以土壤坚实度应包含抗压强度与紧实度两方面。然而文献中在 The concept of “solidity” is often used in soil science to describe the physical state of the soil, especially the tillage conditions, but the term “firmness” has never been clearly defined. From the literal point of view, “Kennedy,” the meaning of compressive strength; “real” who, compacted degree of meaning, so soil solidity should include both compressive strength and compaction. However, in the literature