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- regional soil loss 区域水土流失
- But stover protects against soil loss to wind and water. 但是柴火能让土地保留风和水。
- Using multi scale DEM datum, multi scale topographic index are extracted and mapped in the whole country and sample area in bess plateau, which prepare topographic datum basis for developing regional soil and water loss assessment model. (2)利用多尺度的DEM数据,提取了多尺度的水土流失地形指标,编制了全国及黄土高原典型样区的水土流失地形指标专题图件,为多尺度区域水土流失评价模型的建立准备了地形数据基础。
- 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。
- Developing a regional soil erosion model, understanding the forms, the extents, degrees and predicting the trend of the environment impacts of soil conservation, will be key issues for SEER studies. 今后尽快开发区域水土流失定量评价模型,并在区域尺度上对环境效应的方式、范围、程度和发展趋势做出综合计价和分析预测。
- 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。
- There are two goals of the study. The first one is to fabricate the estimating model of typical sort soils and region soils and simulate the soil AWC in china. 本研究的目的:一是初步构建我国典型土壤类型以及区域土壤的土壤AWC经验估算模型,并进行土壤AWC估算;
- 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。
- There are two goals of the study.The first one is to fabricate the estimating model of typical sort soils and region soils and simulate the soil AWC in china. 本研究的目的:一是初步构建我国典型土壤类型以及区域土壤的土壤AWC经验估算模型,并进行土壤AWC估算;
- 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。
- Blind sewage irrigation has caused the accumulation of poisonous and harmful substance in some regional soils and water sources,and environment has also been polluted in varying degrees,so that it has threated people health seriously in some region. 盲目的污水灌溉导致一些地区土壤、水源中有毒有害物质积累,环境受到不同程度的污染,在有些地区已经严重威胁了人类的健康。
- 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。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries