slope steepness

Results show that critical slope steepness of shallow gully erosion occuring is 18 °, and 40 metres in critical slope length, 650 square metre in runoff converged area.

结果表明，发生浅沟侵蚀的临界坡度约为18°，临界坡长为40m左右，临界汇水面积约为650m~2。

互联网摘选

The result showed that within the critical slope steepness, raindrop splash could decrease velocity and Froude number of sheet flow;

结果表明：在临界坡度以内，雨滴打击降低坡面薄层水流流速、弗汝德数。

互联网摘选

Under the condition of same slope steepness and runoff, sediment delivery caused by rainfall erosion is bigger than that caused by feeding runoff washing. Sediment delivery has increased by 50% when rainfall intensity increases 1 time.

在坡度一致和坡面径流量基本相同时，降雨侵蚀产沙量大于供水径流的侵蚀产沙量，降雨强度增大1倍时，坡面侵蚀产沙量增大约50%；

互联网摘选

It also shows that slope steepness and factors of site have closely linear relationship with the growth of M. officinalis var. biloba.

海拔高度对厚朴生长的影响效应小于坡位、坡向、坡度，且立地因子与厚朴生长之间具有密切的线性关系。

互联网摘选

The remote sensing monitoring analyzes the relationship between soil erosion and the three factors of vegetation cover, land use, slope steepness.

本次遥感监测，分析了土地利用、植被覆盖和坡度三因子与土壤侵蚀之间的关系，并获得了该区域土壤侵蚀的动态变化情况。

互联网摘选

This paper reviews representative slope steepness classification of FAO, Australia, International Geographical Union Geomorphological Survey and Maping Council and Japan;

本文概述了联合国粮农组织、澳大利亚、国际地理学会地貌调查和制图委员会以及日本等有代表性的坡度分级；

互联网摘选

It is found by study on the runoff velocity in the layer of litter, that the runoff velocity was increasing with slope steepness and depth of runoff and was decreasing with increasing the thickness of litter.

本文研究了油松和山杨林枯枝落叶层对径流速度的影响，结果表明，它与坡度、径流深度成正比，与枯枝落叶厚度成反比。

互联网摘选

The steepness of the slope forbade ascent.

坡度很陡,没法攀登.

网络文摘精选

Statistical analysis on date of 55 Populus cathayana plots situated on the boundary between Gansu and Qinghai showed that factors affecting growth of the poplar were topography, soil, aspect, slope steepness, precipitation, elevation in proper oder.

通过对甘青交界区55个样地的青杨样木资料的统计、分析后确认：各立地因子对青杨生长的影响程度依次为地形、土壤、坡向、坡度、降水量、海拔；

互联网摘选