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- soil nutrient loss risk 土壤养分流失
- A layer loss in soil profile is a sign of soil nutrient loss. 土壤剖面中A层的流失是土壤养分流失的标志。
- Sloping spatial distribution of soil nutrient loss responds to spatial distribution of soil erosion patterns erosion intensity. Shallow gully ditch is the severest position of soil nutrient loss. 坡面土壤养分流失的空间分布与坡面侵蚀方式和侵蚀强度的空间分布相一致,浅沟沟槽是坡面土壤养分流失最严重的部位。
- the mechanism of soil nutrient loss by erosion 土壤养分流失机理
- Regular Pattern of Soil Nutrient Loss on the Loess Plateau 黄墡土养分流失规律初探
- IMPACT OF HEDGEROW ON THE CONTROL OF SOIL NUTRIENT LOSS 植物篱对土壤养分流失的控制机理研究
- Mechanism of Soil Nutrient Loss by Erosion and Land Covering Pattern Succession 小流域土壤养分流失机理与土地覆盖格局演变
- Regulation of Soil Nutrients Loss on Slope Land 坡耕地侵蚀泥沙养分富集规律研究
- Relationship between Soil Nutrient Loss and Rainfall Intensity in No-irrigated Farmland of Hefei Outskirts 合肥近郊旱地土肥流失与降雨强度的关系
- The impacts of accelerated erosion on soil nutrient loss and microbial quantity following deforestation in the Ziwuling area 子午岭地区林地破坏加速侵蚀对土壤养分流失和微生物的影响研究
- FEATURES OF SOIL NUTRIENT LOSS ACCOMPANIED WITH RUNOFF AND SEDIMENT FOR THE PURPLE SOIL DISTRIBUTED AREA IN SICHUAN PROVINCE 四川紫色土区土壤养分径流和泥沙流失特征研究
- Steaming them will prevent much of this nutrient loss. 蒸他们将阻止大部分的养分流失。
- Movement of soil nutrient of wheat field in arid desert area. 沙漠地区麦田土壤养分运动特征。
- Soil nutrient and water have a great spatiotemporal heterogeneity. 在森林土壤中;养分和水分具有很大的时间和空间异质性.
- soil nutrient loss 土壤养分流失
- Similarly, precisely because of leveraged hedge funds in operation at that time not often faced with the enormous excess of loss risk. 同样,也恰恰因为杠杆效应,对冲基金在操作不当时往往亦面临超额损失的巨大风险。
- The research results about the absorbed N,P amount of millet and soil nutrient loss as affected by different N,P treatments in slopeland reveals follow as: (1) The different N,P treatments might P were higher than P effects under only supplied N; 氮磷配施对坡地谷子吸N,P量及土壤养分流失影响的研究表明:(1)N,P肥的不同配比均能增加谷子对N,P的吸收,增施P对N吸收的效果较高于增施N对P的吸收;
- A modified version of P index was used to assess P loss risk and identify critical source areas in Chaohu watershed at a regional scale. 以巢湖流域为研究区,尝试采用改进的磷指数法在较大的流域尺度开展非点源磷流失风险评价及关键源区识别。
- To improve work efficiency, bagged soil nutrient management should be fixed. 为提高工作效率,营养袋装土应采用定额管理。
- The probability of the great loss is controlled by the right deflection distributing of hedging returns.Then the great loss risk of hedger is avoided. 通过偏度约束控制了当收益分布向右偏料时的重大损失发生的概率,解决了套保者遭受重大损失的问题。