水土保持耕作 meaning in Chinese
conservation tillage
Examples
- On the basis of analyzing factor ( soil particle composition , soil bulk density , water stable aggregate content , antecedent soil moisture , slope gradient , rain intensity , accumulation depth and soil crust , soil and water conservation tillage measures ) affecting soil infiltration rates , several relation models was obtained ; analyzed in detail different soil and water conservation tillage measures intensifying infiltration rates , while there have the same rainfall condition , the increasing infiltration rates of contour tillage and artificial digging and artificial hoeing in gully areas of loess plateau are 67 % and 41 % and 29 % ; the increasing infiltration rates in hilly areas of loess plateau is 45 % and 22 % and 14 %
在相同的降雨条件下，黄土高原沟壑区等高耕作与直线坡相比，可提高入渗67 ，人工掏挖可提高入渗41 ，人工锄耕可提高入渗29 ；黄土丘陵沟壑区等高耕作可提高入渗45 ，人工掏挖可提高入渗22 ，人工锄耕可提高入渗14 。并根据黄土高原超渗产流的概念和水量平衡方程，建立了不同水土保持耕作措施强化入渗速率模型。 - 2 . on the basis of analyzing experimental data for slope land of loess plateau in different slope gradient and rain intensity and soil and water conservation tillage measures , using curve - fitting techniques , a soil infiltration rates model was woke out , the accuracy of the model is tested by a series of experiment data , the result of these indicate that the soil infiltration rates model is accurate and has good stability for slope land of loess plateau . 3 . using soil infiltration rates and runoff time and wetting frontal surface depth of soil infiltration reflect effect of factor affecting soil infiltration rates
( 3 )采用土壤稳定入渗速率、坡面开始产流时间、土壤湿润锋面下渗深度三个指标来反映坡耕地土壤入渗影响(土壤性质、土壤初始含水率、地面坡度、降雨强度、积水深度、水土保持耕作措施等)因素效用大小，建立了各因素与三个指标的关系模型，详细分析了不同水土保持耕作措施强化土壤入渗的影响，其中等高耕作作用最为显著，其次是人工掏挖和人工锄耕。