fossil erosion surface是什么意思

用法例句

Regional metallogeny is depedent upon a series of factors other than composition and age of magmatic rock, erosional level of ore-bearing batholith or magmatic assimination of sedimentary rock.

决定大区域成矿类型的究竟是什么，是否是岩浆岩的时代和成分、含矿岩基侵蚀断面的深度、沉积岩的成分和分散在其中的金属受到岩浆的同化作用？根据近年来最新研究资料，对这些问题作了否定回答，并提出了决定区域成矿特性的一系列因素。

The slope erosion is the original zone of water and soil loss and water and soil on slope must be treated quickly.

坡面侵蚀是水土流失的源区 ,有必要加快坡面水土治理。

According to observation data and the outcomes of artificial rainfall in Wangjiaqiao basin, based on erosion mechanics mechanism, two concepts of slope erosion and basin erosion are distinguished grimly and soil erosion models of slope and small watershed have been established.

根据王家桥流域观测资料及人工降雨实验成果,从侵蚀力学机制出发,严格区分了坡面侵蚀与流域侵蚀两个不同的概念,建立了坡面侵蚀模数和流域侵蚀模数。

There is serious slope erosion when the railway or road is constructed in granite region in southern China where ecological environment and engineering conditions is weak area in.

南方花岗岩地区是生态环境和工程条件脆弱区之一,铁路公路穿过时,常常存在较为严重的坡面侵蚀问题。

It is considered that the slope surface erosion is the inducing and promoting factor of the gradual destruction of the loess slope in long-term rainfall wash and infiltration,whose surface is exposed and within which is the slippage interface.

分析了斜坡坡面遭受天然降水与人类活动的侵蚀破坏对坡体稳定性的影响,认为坡面裸露的黄土边坡在长期的雨水冲刷与入渗情况下,坡面侵蚀破坏成为滑动面位于土层中的黄土边坡渐进破坏的诱发与促进因素。

From the following four aspects: drag forces, velocity, energy and sediment carrying capability of slope surface flow, the threshold gradient of slope surface erosion in the granite area in the south of china is discussed, and it is obtained the critical slope gradient is from 35 to 43 degree.

从坡面流拖曳力、流速、能量及挟沙力４ 个方面，分析了南方花岗岩地区坡面侵蚀临界坡度，得出其临界坡度为３５～４３

However, soil erosion and seasonal drought are major constraint for sustainable agriculture due to improper land use and uneven distribution of .

研究结果有助于深入了解坡面侵蚀机理,为泥沙输移模型开发提供必要的土壤参数。

A Research on Erosion of Slope Planting Protection of Railway Rock Slope;

铁路岩质边坡植被护坡的坡面侵蚀研究

Quantitative relationship between aggregate characteristics of red soil and slope erosion

红壤团聚体特征与坡面侵蚀定量关系

5. For dli channel at down-slope, sediment regime is always detachment and transport dominated.

5．对于细沟土槽，坡面侵蚀过程以侵蚀—搬运过程占主导地位。

Application of Runoff Erosion Power in the Calculation of Soil Erosion and Sediment Yield on Hillslopes

径流侵蚀功率理论在不同尺度坡面侵蚀产沙中的应用

The research of Slope Surface erosion in different vegetation pattern in the purple soil region in Sichuan Province

四川紫色土地区不同植被模式下坡面侵蚀研究

Study on Effects of Rainfall in the Spring Thaw Period on Black Soil Slope Erosion

春季解冻期降雨对黑土坡面侵蚀影响研究

Effects of upslope runoff on detachment and transport processes on loessial hillslopes

上方汇流对黄土坡面侵蚀—搬运过程的影响

Study on the Processes of Soil Erosion Using REE Tracers on Sloping Land and the Effect on Reducing Sediment of Different Underlying Surfaces;

REE示踪坡面侵蚀演变过程及不同下垫面撂荒地的减沙效益研究

Experimental Study on Evolution Process of Sheet Erosion-Rill Erosion-Gully Erosion and Sediment Yield Process on Loess Hillslope;

黄土坡面片蚀—细沟侵蚀—切沟侵蚀演变与侵蚀产沙过程研究

Comparitive Study upon Soil Erosion Processes on Red Soil Hillslope and Loess Hillslope

红壤坡面与黄土坡面土壤侵蚀过程对比研究

Effect of Slope Gradients on Soil Erosion Process in Red Earth Hillslopes

地面坡度对红壤坡面土壤侵蚀过程的影响研究

An Experimental Study on Soil Detachment and Transport Processes at Loessial Hillslope;

黄土坡面土壤侵蚀—搬运过程试验研究

Study on Slope Accelerated Erosion Processes of Red Soil and Purple Soil

红壤和紫色土坡面加速侵蚀过程研究

Simulated-rainfall experimental research on soil erosion processes on downslope segment of loess hillslope

黄土坡面下坡位土壤侵蚀过程的模拟试验

Quantitative Analysis of Soil Erosion on Hillslopes by Alternant DEM

用交互数字高程模型分析计算坡面土壤侵蚀量

Prediction Model of both Sediment Yield and Runoff Generation on Rill Erosion Zone over Loess Slope;

黄土坡面细沟侵蚀带产流产沙模型研究

The Study on the Changing of Micro-Morphological Characters in the Process of Erosion Soil in Slope;

坡面土壤侵蚀过程中微形态特征变化研究

Using REE Tracers to Measure Sheet Erosion Changing to Rill Erosion on Loess Slope;

利用REE示踪法研究黄土坡面土壤侵蚀过程