soil n. 1.泥土,土壤;土质。 2.土地,国土。 3.滋生地,温床。 4.农业生活,务农。 clayey [sandy] soil 黏[砂]壤。 poor [rich] soil 瘦[肥]土。 high soil 轻质土。 alluvial soil 冲积土。 arable soil 耕地。 a tiller [child, son] of the soil 农民;本地人。 the lord of the soil 领主,地主。 soil conservation 土壤保持。 soil invaders 【农业】土壤寄居菌。 on foreign soil 在外国。 one's native [parent] soil 故乡,祖国。 n. 1.脏东西,污物,污秽,污斑。 2.粪尿,肥料。 a soil pipe 污水管。 night soil 粪便。 vt. 1.弄脏,弄污;污染,污损。 2.污辱,败坏。 3.给…上粪[施肥]。 vi. 被弄脏,变脏。 soil one's hands with 〔比喻〕因…弄脏手;染手。 It soils easily. 那东西容易脏。 soil a field 给田施肥。 soiled clothes 脏衣服。 vt. (给畜舍内畜牲)喂青草[青饲料];(用青饲料给畜牲)通便;催肥。 soiling crops 青饲料作物。
The influence of initial soil conditions on water penetration and soil moisture distribution 荒漠地区土壤初始状况对水平入渗的影响
The wetting front moved nearly parallel to the soil surface , and its length could be described by a power function of time , when the distribution of initial soil water was uniform 当初始含水量分布均匀时,降雨入渗过程中湿润锋面几乎平行坡面运移,湿润锋深度与时间的关系可用幂函数描述。
By the experiments , some main factors influenced watering effect were analyzed . the results show that watering volume , initial soil water content , and width of water ditch influenced the watering effect differently 对影响灌水效果的几个主要因素进行了分析,实验表明,灌水量、土壤初始含水率、灌水沟宽度对灌水效果都有不同程度的影响。
The results indicated that even if there was different at initial soil condition , such as initial moisture content and initial salt content , salt content in soil profile and sar at top soil increased greatly after the high salinity water infiltrated 结果表明尽管土壤初始条件存在差异,但灌高矿化度水后,土壤含盐量和溶液浓度总体增加,且土壤剖面特别是表层的sar明显增大。
The results showed that the lower initial soil moisture content was , the less infiltration occurred and wetting front moved slowly , and soil salt were leached more efficiently . at the same time , salt reduced in the top soil and salt accumulated at the wetting front 通过对土壤初始含水量下土壤水盐运移规律室内模拟试验研究,发现随着土壤初始含水量的增加,相同入渗历时内的累积入渗量和湿润锋都在增加。
When the saline water ( < 3g / l ) infiltrated to 45cm , the top soil of 0 - 37cm was desalinized , when the saline water of 3g / l infiltrated , the desalinized depth was 0 - 15cm . moreover , sar of top soil increased with the sar of the infiltration water . 3 . through lab experiment , the characteristics of soil water and salt movement under different initial soil moisture content were analyzed 当湿润深度为45cm时,小于3g l的微咸水入渗后, 0 - 37cm土层处于脱盐状态,而3g l的微咸水入渗, 0 - 15cm土层处于脱盐状态, 15cm - 35cm土层含盐量基本等于初始含盐量,但湿润锋处含盐量很高。