查询词典 water and soil
- 与 water and soil 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Water flows on the film that was covered at bottom of border and infiltrates into soil through the holes and the crop growth from the fole.
该灌溉方式是将地膜平铺于畦中,从而实现利用地膜输水,通过出苗孔、专用供水孔入渗来进行灌溉的方法。
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The canopy of the species is strong in obstructing storms and reducing soil surface erosion and the water-holding capacity.As a result,the surface erosion is less than that on the grassed slope by 11%;the litter under the canopy has a depth of 5.5 cm on the average;and each adult tree can hold 0.3~0.69 m3 of rainfall.
杨梅树冠和树形有极强的阻截暴雨,减少地表径流以及蓄水能力,地表径流比草坡减少11%,树冠下部凋落物平均厚度5.5 cm,每株成年树可保存0.30~0.69 m3的降水量。
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Based on data of Yanhe river basin's hydrological stations on precipitation, runoff, soil and water conservation measure area sizes (terrace land, forestation land, grassed land, and silted dam land) from 1950s'-1980s', the basin's monthly precipitation station weightiness indexes and the four main measure areas weightiness indexes through correlation analysis and factor analysis were built.
以建立一种科学的较简单的评价方法为目的,以延河流域水文站20世纪50-80年代30余年降水、径流、水土保持主体措施面积(梯田、造林、种草、淤堤坝)资料为基础,运用相关分析、因子分析等方法,建立了流域雨量站各月降雨量权重指标体系、流域4大水土保持措施面积权重指标值,并构建了以水土保持面积指标、降雨量指标为参数的流域水文响应评价模型,进而分析水土保持措施对流域径流量的效应。
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Conflict between forestry and graziery ; small scale husbandry ; soil and water conservation industry
林牧矛盾;小农畜牧业;水保产业
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On the other hand, these activities control the amout and quality of freshwater, for example, water used for agricultrue and industry increase, build up reservoir and unloading directly change the balance of the ecological eviromental composition such as salinity, sand, nutrious and microelement in soil, so that control the change of heteroptera Kitog.
人类活动一方面通过建设虾池、大坝及油井平台等活动直接占用了碱蓬生长的土地,另一方面它又通过控制上游淡水的水量与水质,如农业与工业用水的增加、建水库、直接排污等活动改变着区域土壤的盐度、泥沙成分、营养物质、微量元素等生境组分的平衡,进而控制碱蓬的消长。
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Field investigation,pot culture test and water culture experiment of Suaeda heteroptera Kitag in Panjin"Red Beach"were conducted,the results showed that the increasing salt amount of the beach soil gave the main cause for the plant Suaeda heteroptera Kitag 's withering and death.
通过对翅碱蓬的野外调查、盆栽试验、水培实验,得出滩涂土壤盐分升高是引起翅碱蓬枯萎死亡的主要原因,并提出了恢复&红海滩&生态功能切实可行的技术措施。
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The results showed that soil organic carbon, water-soluble organic carbon and humin decreased gradually. Extracted humic substances presented an increasing trend at first and then decreased. Relative proportion of humic acid in HE decreased at first and then increased during the initial stage of corn stalk decomposition, which indicated that the formed rate of fulvic acid was faster than HA. Then PQ dropped gradually and reached stabilization, which indicated that FA and HA transformed into each other for some time and then reached balance.
研究结果表明:随着培养时间的延长,土壤有机碳、水溶性有机碳、胡敏素逐渐减少,可提取腐殖物质先增加后下降,可提取腐殖物质中胡敏酸的相对比例则在玉米秸秆分解初期表现为先减少后增加、最后趋于稳定,表明富里酸和HA经历了一段相互转化的过程后达到了动态平衡。
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The results indicated that vegetation biomass had a significant positive relationship with vegetation coverage. They had a significant negative correlation with bulk density of soil, and a positive correlation with macroaggregate, water stability macroaggregate, organic matter content, total nitrogen content, hydrolyzable nitrogen content, available kalium content, microbial biomass, and microbial respiration. However, they had no significant relationship with total phosphorus and available phosphorus.
在其恢复过程中,植被地上生物量与植被覆盖度呈正相关,它们与土壤容重呈负相关,而与土壤大团聚体、水稳性大团聚体、有机质含量、全氮含量、水解氮含量、速效钾含量、微生物量以及土壤呼吸强度之间呈正相关,与土壤全磷、速效磷含量无显著相关性。
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It can be concluded that the microwave radiation has the advantages of saving time and energy and heating uniformly,and is an effective way to measure soil hydroscopic water
因此 ,有必要寻找一种简便快速的方法。近几年来,微波辐射技术应用到各个领域,该技术不仅可以完好
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It took 4,7,10,and 12 min respectively for air dried soil of 5,10,15,and 20 g to reach a basic steady status of hydroscopic water loss.
测定土壤吸湿水的传统方法为烘箱法[2 ] ,它是把一定数量(通常 1 0 0g)凉干土壤装于去盖铝盒中,在 1 0 5~ 1 1 0℃烘箱中烘 8~ 1 0h ,所失水分占烘干土壤百分率为土壤吸湿水含量。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。