您要查找的是不是:
- But stover protects against soil loss to wind and water. 但是柴火能让土地保留风和水。
- People plant trees on stark hill in order to deline the water and soil loss. 人们在荒丘上种植了树木以减少水土流失。
- People planted trees on the waste hills to decrease water and soil loss. 人们在荒丘上种植了树木,以减少水土流失。
- Soil loss, water shortages, and environmental quality problems are also the legacy of our growth. 水土流失和环境质量也是我们发展中遗留下来的问题。
- Soil loss of the pure contour hedgerow plot was 37.71% of that of the pure crop plot. 单纯等高植物篱处理小区的侵蚀量仅为在相近雨强及雨量条件下对照坡耕地的37.71%25。
- And the soil loss of the grading terrace is more serious than the paddy field, with lower hypsography. 地势较高的缓坡梯田比地势低的水稻田侵蚀严重。
- After projects are put into operation, the emphases of soil loss monitoring are landslide and bank collapse. 工程建成投入运行后,水土流失监测的重点是库区的滑坡、塌岸。
- One of the most eye opening results was that increasing application of fertilizers correlated well with decreasing levels of soil loss on these sites. 最令人振奋的结果之一是,增加肥料用量与这些地点土壤损失量的降低呈良好相关。
- Hillslope one of the important topographty factors for process of the evolution and the intensity of erosion of the soil loss. 摘要地面坡度是地形因素中对坡面土壤侵蚀的演变发展过程与侵蚀强度起重要作用的因子。
- Hillslope is one of the important topographty factorsfor process of the evolution and the intensity of erosion of the soil loss. 地面坡度是地形因素中对坡面土壤侵蚀的演变发展过程与侵蚀强度起重要作用的因子。
- Contrastively, due to complicated types and high intensity, man-made erosions were main water and soil loss hazards in Guangzhou city. 人为侵蚀的成因主要有:采石取土、交通道路建设、开发区建设以及坡耕地。
- Applying a redesigned index of land use structure,the effect of land use structural change on water and soil loss in Wusuli River basin was analyzed. 不合理的土地利用结构是导致我国一些河流水土流失乃至河流改道的重要原因之一。
- One possibility is to use the remains of corn plants left in the field after harvest.This material is known as Stover.But stover protects against soil loss to wind and water. 有些人担心玉米作为乙醇生产的原料,用量不断增加会导致食品价格上涨,同时也担心玉米作为食品和饲料的原料减少了。
- Among the soil and crop management treatments, alley cropping gave the lowest soil loss, which was only about 14% of the farmers' practice(residues burnt). 在土壤和作物管理的不同处理中,巷带种植使土壤流失量最低,只有农民习惯措施(烧掉植物残体)的14%25左右。
- Corn straw cover is to use crop straw to cover the earth surface, which is a dry farming measure to solve soil, fertilization and water and soil loss control. 摘要玉米秸秆覆盖是利用作物秸秆覆盖地表,解决保土、培肥和控制水土流失的一项旱作农业耕作措施。
- Abstract: The working of laying sewage drain pipes resulted in periphery soil displacement seriously, partly landfall, partly soil loss and contortion of steel tubes. 摘 要: 针对深圳市污水排水放流钢顶管已施工部分,因顶管施工过程中周围土体位移严重,局部出现过塌方,造成部分土体流失,引起钢顶管扭曲变形。
- Based on 3 years locating and semi-locating observation, the amount of soil loss in runoff from yellow soil of hilly areas by de farming and reafforestation in Guizhou province. 通过3年定位、半定位观测,对贵州山区退耕还林(草)地进行采样并采用无界径流小区法收集地表径流样品,探讨贵州山区退耕还林(草)措施对贵州山区土壤养分流失以及水土保持效益的影响。
- Supplied with local soil and crop parameters and climate data, the model could simulate soil loss on hour basis to evaluate different conservation tillage system. 该模型以小时为步长,根据气象数据、地表土壤水分、秸秆残茬覆盖率及地表粗糙度,模拟不同耕作体系下农田土壤风蚀流失量情况;
- Soil loss is a function of six factors, i. e. rainfall, soil erodibility, slope length and steepness, crop and soil management(Wischmier and Smith,1978). 土壤流失是6项因子的函数,即降雨、土壤耐蚀性、坡长和坡度以及作物和土壤管理(Wischmier和Smith,1978)。
- The author expounded the situation and harms of different rocky water and soil losses in Ningdu county eroded area. 论述了宁都县侵蚀区不同岩性水土流失现状和危害,并对成因及发展趋势进行了分析。