soil chemical factors的用法和樣例：
例句
- The regression equations between soil enzyme activities and chemical properties were obtained by using a stepwise regression method.
用土壤化學性質對各種酶活性進行逐步回歸分析，可以得到理想的方程。 - The findings indicated that, to choose suitable plants and the disposition proportion in Cropland to Forest were more advantageous to the soil fertility enhancement.
摘要對青海大通縣北川河流域退耕還林地土壤化學性質研究結果表明，退耕還林中選擇適宜的樹種及配置比例更有利於土壤肥力的提高。
