黄绵土

该文以黄绵土（质地为粉质壤土）为试验材料，通过室内模拟降雨试验研究了雨强对坡地P随径流流失的影响。

Impacts of rainfall intensities on P loss from loessial slope land were studied using loessial soil with texture of silty loam and through simulated laboratory rainfall experiments .

土壤（特别是黄绵土）在雨水作用下，表面会形成结皮，显著地降低降雨入渗率，聚丙烯酰胺（PAM）能有效地抑制降雨过程中土壤结皮的形成，提高降雨入渗率。

Summary Surface crust of soil , especially Loess , formed under the impact of raindrops will significantly affect rain water infiltration rate .

对分布于甘肃省东部的黑壤土、灰褐土、黄绵土、新积土4个土类的7个土属进行电磁波谱测试。

The electromagnetic spectra of four soils distributed in eastern part of Gansu Province were tested .

该文通过采用土壤结构改良剂水解聚丙烯腈处理黄绵土，以探讨幼林地土壤管理的有效措施。

To take effective measures for management of young growth land , the soil structure improver hydropolyacrylonitrile was used to treat Huangmian soil in the experiment .

土娄土、黄绵土、黑垆土脲酶活性变化率与时间及土壤缓冲速率之间的方程为：时间的非线性阻尼振动方程和土壤缓冲速率线性方程的复合形式。

The equation among Lou soil 、 Loess soil and Heilu soil urease activity rate and their buffering rate and time is combination of the two sections , one is nonlinear damped vibration equation for time , the other is linear equation with one unknown for soil buffering rate .