查询词典 soil conservation
- 与 soil conservation 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Based on analyzing the mechanism of heat and water transfer in unsaturated soil, and the conservation principles of mass and energy, the theoretical model of heat and water migration in unsaturated soil was established.
理论上，通过对土壤内热和水分迁移机理分析，根据质量守恒和能量守恒原理，建立了土壤非饱和区热和水分迁移的理论模型。
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Classification of soil erosion is an important topic in soil and water conservation.
土壤侵蚀等级的确定是水土保持工作中的重要问题。
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Soil erosion is an important topic in the planning of soil and water conservation in the urban area.
土壤侵蚀等级的确定是城市水土保持规划中的重要问题。
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It also simulated to calculate runoff and soil loss in the beginning year of soil and water conservation.
4完成了对延河流域生态服务价值的测算。
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It is very important to measure sediment concentration in water current on studying of soil erosion and soil and water conservation.
引言土壤侵蚀是危及人类生存与发展的重要环境问题之一，在我国表现尤为突出。
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Article 28th strengthening river beaches, river banks and dikes of soil and water conservation, prevention of soil erosion and river siltation.
第二十八条加强河道滩地、堤防和河岸的水土保持工作，防止水土流失、河道淤积。
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Based on field investigation and historical data analyzing, the characteristics and causes of flood disasters of Qinba Mountain area were discussed in this paper. Take the harnessed Watershed and unharnessed Watershed as comparative study objects, through analzing the two typical watershed land using and rainfall-runoff dynamic data, combinating the in-situ soil infiltration field testing, a rainfall-runoff model of small watershed which was appropriate to Qinba Mountain areas was built based on improving the SCS model. And then the influence of soil and water conservation measures on the flood processes was analysed.
本文通过野外调查与历史调查资料，阐述了秦巴山地区洪水灾害的特点及成因，以治理流域与未治理流域为对比研究对象，通过对两条典型流域的土地利用状况分析，结合土壤入渗原位测试，充分利用降雨、径流动态观测资料，以SCS模型模拟降雨径流为重点，建立适合于秦巴山地区小流域的降雨径流计算模型，分析水土保持措施对于洪水的作用过程。
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By analysis on the physical and chemical properties of rhizosphere and nonrhizosphere soils of Zanthoxylum bungeanum with soil and water conservation economic benefits in Karst valley of Guizhou province,the soil characteristics suiting Zanthoxy
文摘：测定了贵州喀斯特峡谷水保经济植物花椒根际和非根际土壤的理化性质；探讨了适宜花椒生长的土壤特性；提出了发展花椒生产的主要技术措施。
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Biological circulation rate of five elements in Chinese fir layer is 0.412,but they are 0.505and 0.556 in shrub and herb layers,and they show the law of herb layer＞shrub layer＞Chinese firlayer,this shows that understory plants have significant conservation function of soil fertility innutrient circulation,but Chinese fir tree species has larger consumption of soil fertility.
杉木层的5种元素总生物循环速率为0.412，而灌木层和草本层的5种元素总生物循环速率分别为0.505和0.556，表现出草本层〉灌木层〉杉木层的规律，说明林下植物在养分循环中具有明显的地力维护作用，而杉木对地力消耗较大。
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It is pointed out bythe monthly dynamic analysis and yearly comparative analysis that the improvementof soil water conservation functions in purple soil sloping fields by planting Pure and mixed stands of Sabaigrass vegetation is synchronous with the local raining rhythmand the longer planted the better the effect.
月季动态分析和年际间比较分析指出，龙须草纯种植被和龙须草-林木复合种植植被对紫色土荒山坡地土壤蓄水性能改良效果既与当地降雨节律同步，又呈现出随着处理年限延长而强化的趋势。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。