surface soil造句
1 The surface soil and the unconsolidated mantle rock beneath it form only a thin venner.
2 Surface soil organic matter contents of each plantation was higher than that of the control plot.
3 There, the surface soil is also alkaline and low in salts, but deeper it can turn saline and acidic as the "ice table" is approached, he said.
4 The results show that the surface soil layer sandification is more evident after the reclamation, the more intensive land utilization, the more serious the destruction on soil aggregate structure.
5 The sample is from the surface soil that scientists say covers a layer of ice.
6 Passive microwave is sensitive to the surface soil moisture, but the resolution is poor.
7 The results showed that sand grain content in surface soil of Pinus massoniana forest land was highest among 4 kinds of forest lands and that of natural evergreen broad-leaved forest was lowest.
8 There is plenty of salt in surface soil of Yellow River delta,[www.] which makes soil hardened and salinized .
9 The surface soil salt content increases gradually from south to north in the horizontal direction.
10 Cropland surface soil invertebrate living in it is considered as a special ecosystem in cropland - soil system.
11 Stability of a shaft in thick and deep surface soil is studied when a bottom aquifer of Quaternary System is feeding water to Haizi Mine in Huaibei.
12 The anti-scourability of surface soil increased with time, and the relationships for the land uses can be fitted by power function.
13 The average amount of water reported, if we were to extract it, is about a quart of water per ton (of surface soil).
14 Cuttings should be after regular watering, keep the soil moist seedbed to the surface soil seedbed no significant white suitable.
15 The purpose of this paper is to find the distribution laws of the shear force between vertical shaft and surface soil, and to lay a foundation for mechanical model of shaft in soil.
16 The paper reports the support technique of inclined shaft crossing surface soil with swelling and watering, in this case the stability of whole support system is key factor for successful control.
17 Xuehu coal main and subsidiary well have deep shaft, thick surface soil and strong disability, poor pourability in the hydrated grope rock and complex geology condition.
18 If the infiltration intensity is less then the saturated permeability coefficient, the surface soil finally reaches to an unsaturated infiltration stage instead of saturated infiltration stage.
19 By adopting heat equilibrium method, the paper studies the function of the two kinds of shelterbelts to decrease evaporation and saltness of surface soil in the farmland.
20 To put it another way, he said, about 16 ounces of water might be present for every 1,000 pounds of surface soil near the moon's poles.
21 The soil water content and the content of organic matter, total N and available P, K in the surface soil of the open forest were lower than that of the other forests.
22 Normally, the extracting soil areas firstly need to temporally store the surface soil, meanwhile, temporary block measures, temporary drainage projects and temporary cover should be taken.