And the generation process of runoff and sediment erosion and the hydrodynamic characteristics of flow on grass slope were quantitatively studied.
试验结果表明,草地与裸地坡面土壤入渗过程均符合Horton入渗公式,且裸地坡面土壤入渗率约为草地的45%;草地坡面含沙率平均值较裸地减少70%左右、输沙率减少80%左右、径流系数减少30%左右;裸地与草地坡面流雷诺数Re均属于层流范畴,当坡面径流量较小时,裸地和草地坡面流的雷诺数和弗劳德数属于层流中的缓流范畴,当坡面径流量进一步增大,裸地坡面径流属于过渡流急流流态;草地和裸地坡面径流深没有明显差异,草地坡面径流流速明显较裸地低,而且Darcy-weisbach阻力系数f和曼宁糙率系数n的平均值分别是裸地的3。
Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River
黄河班多水电站工程区荒草地坡面产流过程试验研究
(2) The amount of the soil evaporation in Eucalyptus wood slope was the highest,followed by the nature grass slope,while it was the lowest in nature slope.
(2)不同地类的土壤蒸发量为桉树林坡面>自然草坡>阶间草坡。
Experimental Research on the Impacts of Ground Slope on the Runoff of Turf;
地面坡度对草坪径流的影响试验研究
the side of the mountain, tower, haystack
山、 塔、 草堆的坡面
Experimental study on the law of runoff and sediment generation in the natural grassland of the typical loess slope
典型黄土坡面天然草地产流产沙规律试验
Anticipated Empirical Model on Soil and Water Erosion for Grass Land in Mountain Areas of Middle Southern Part of Shandong Province
鲁中南山区坡面草业用地水土流失预测经验模型研究
Effects of slope aspect on plant community characteristics of Vetiveria zizanioides slope-protection land.
坡向对香根草护坡地植物群落特征的影响
The ground drops sharply near the shore.
近海边的地面坡度很大。
Milkworth and liverwort starred the green slope.
绿草坡上的望志草和地钱苔星星点点开着花。
The thatched cottage stands on the hillside all alone.
茅草屋孤零零地坐落在山坡上。
Effect of Artificial Pasture on Soil and Water Loss on the Slope
人工牧草种植对坡地水土流失的影响
Behind it rose the first gentle slopes of the hill clad with trees, and trees marched away westward along the curving shores of the lake.
草地后面首先是林木葱茏的和缓山坡，这些树木沿着蜿蜒的湖岸向西延展开来。
low-growing plants planted in deep shade or on a steep slope where turf is difficult to grow.
贴近地面生长的植物，种植在荫蔽处或草皮难以生长的陡峭的斜坡上。
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
On the gentle slope near the city of Soochow, the weeds were tall.
苏州城外一面并不很陡的山坡上，杂草丛生。
Soil Nutrient Characteristics Across Forest-grassland Landscape Boundary in Slope Forest of Loess Plateau
黄土丘陵区坡面林—草边界土壤养分特征
Distribution characteristics of soil temperature at the boundary of forestland-grassland in hilly area of loess plateau
黄土丘陵区坡面林-草边界土壤温度分布特征
Terraced fields on steep slopes should be returned to forests or pastures in a planned and systematic way
陡坡耕地要有计划、有步骤地退耕还林还草。