The analysis on the texture of soil indicated the mostly Apple-pear orchards' soil of yanbian area was clay.
通过对土壤质地分析表明,延边地区大部分苹果梨园土壤为壤质粘土。
The salinity of soils varies greatly with texture of soils and total salinity of seawater and ranges from< 0.5% (sandy tidal flat soil)to 3.3%.
土壤含盐量是随质地和滩面水的总盐量的变化而不同,如潮滩沙土由小于0.5%至3.3%。
The grainy texture of soil, the coarse surface of mountainous regions, and the salty flow of ocean water add visual excitement and intrigue to each image.
粒状土壤质地,表面粗糙,山区和海水咸流量增加每个图像视觉兴奋和阴谋。
Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.
有些地区由于土质、地形位置或与河流或地下水的距离,几乎没有水分能提供给植物,而另一些地区则有。
Standardization of crop irrigation using the agrohydrological characteristics, such as texture, bulk density, soil moisture under the lowest water capacity and wilting moisture is investigated .
用土壤的农业水文学特征,如土壤质地、土壤容量、最低田间含水量和萎蔫下的土壤含水量对作物灌溉的规范化进行了研究。
Influence of soil texture, tillage practices and stubble on water storage content before wheat sowing was studied by using the method of contrast in Linfen and Xiangfen, Shanxi province.
在山西临汾、襄汾采用大区对比法研究了土壤质地、耕作方式及茬口对小麦播前土壤贮水量的影响。
Earthworms consume large amounts of soil, and produce a rich humus, perfect in texture.
蚯蚓吃下大量土壤,排出肥力丰富、物理结构理想的腐殖质。
The differences of soil section features and soil texture provide conditions and bases for us to distinguish.
土壤剖面特性的不同和质地的差异为我们提供了区分的条件和依据。
For diluvial soils, KBD distribution was probably related with soil texture. Soils with high content of gravel in bottom layer are mostly concentrated on KBD affected area.
就洪积土壤来说,其与大骨节病分布的关系似乎与土壤质地有一定的联系,底部砾石含量高的土壤多集中在大骨节病地区。
It is the objective reflections of different compressibilities before and after destruction of original texture of the soil.
它是土的原始结构发生破坏前后的不同压缩性的客观反映。
Affect of soil texture and rotation on wheat yield and water use efficiency has studied by using the method of contrast in Linfen and Xiangfen, Shanxi province.
在山西临汾、襄汾采用大区对比法研究了土壤质地和茬口对小麦产量及水分利用效率的影响。
The content of soil organic matter affected soil swelling rate remarkably when soil texture was not obviously different.
有机质含量在质地差别不明显情况下,对土壤膨胀率也有极显著的作用与影响;
The application technique of texture mapping on imitating the soil surface is introduced for an example of the soil surface changed in the engineering corps battlefield.
以工兵战场仿真中挖土作业时土壤表面视景仿真为例,介绍了纹理映射技术在模拟土壤变形过程中的运用。
Soil texture, tube material, and disturbance of light on root were also the factors affecting the precision of the method.
此外,土壤质地、石砾多少、微根管材料选择、减少光系统对根系的干扰等也是影响微根管测定精度的因素。
Statistic analysis indicated that the fractal dimension could objectively reflect soil texture, mainly the content of clay, and then silt content.
土壤颗粒分形维数是反映土壤质地的一个较好指标,重点反映粘粒含量,其次是粉粒含量。
The soil texture chart of Haining County was mapped based on data of mechanical composition of 230 soil profiles.
本文根据230个土壤剖面的机械组成数据绘制了海宁县土壤质地图。
The present study has discovered th at soil texture had a great effect on bacterial wilt occurrence of tomato.
采用盆栽试验方法,研究了不同质地土壤条件下番茄青枯病的发生情况和土壤微生物的特征。
The impacts of the soil texture, the up - per and lower bounds of water application and the crop roots to the relative percolation are analysed in the study.
在研究中,分析了土壤质地,灌水上、下限和作物根系交错对相对深层渗漏量的影响。
The result showed: (1) With the development of community, soil texture changed from silt to clay loam, soil texture was improved obviously.
结果显示:(1)随着群落的发育,土壤质地由群落发育中期的粉土逐渐过渡到发育后期、末期的粘壤土,土壤质地得到了明显的改善。
But the big function of soil and water conservation and the improvement of soil texture and seedling nursing have not been studied systematically.
但对它强大的水土保育功能(抑制水土流失、改善土壤质地),以及与水土保育相关联的幼苗保育功能等方面研究较少。
With the increase of farming years the degradation of nutrients, texture and bulk density weakened the soil abilities of water and fertility retention.
随耕种年限的增加,耕地在养分、质地以及容重退化的同时保水保肥能力降低。
The mechnical stability, varies with soil texture and with various phases of soil structure .
机械稳定性随土壤的层理和土壤结构中各相情况而变化。
They are applicable to the various soil texture and meet the requirements of environmental protection. They are ideal equipment that supersede steam or air hammers.
因此,液压模锻锤可以用于各种土质条件的地区,且符合环保要求,是替代蒸空模锻锤的理想设备。
Experimental results show that fine texture soil layer overlying coarse texture soil layer can markedly increase water-holding capacity and get some supplement of water after reaching field capacity.
实验结果表明,细粒土壤下垫有粗粒土壤时,上部细粒土壤的持水能力有明显的提高,可以超过最小持水量而得到若干补充水量。
A fitted relationship between the parameters and the soil texture was established, with which the model parameters of soil water retention curves can be predicted by the soil physical characteristic.
采用回归分析方法建立了参数与土壤物理特性间的函数关系,为采用土壤颗粒组成等土壤物理特性确定土壤水分特征曲线提供了指导。
The only input factors of the simplified model were soil radium content, dry bulk density, water content and soil texture type and the output was soil radon exhalation rate.
模型只需输入土壤样品镭含量、容重、质量含水率和质地名称,就可以输出该样品的氡析出率理论值。
The mathematics model for the relationships among soil available water content with soil texture, particle diameter and dosage of super absorbent ploymer(SAP) was deduced.
结果表明:土壤质地、保水剂用量对土壤有效水含量的影响达到极显著水平,而保水剂粒径对土壤有效水含量的影响不显著。
Soil type and soil texture and land type affected the movement of water and salt in soil, thereby influenced soil salinization levels.
土壤类型、土壤质地和土地类型以不同的方式影响着土壤水盐运移,对土壤盐渍化水平有一定的指示作用。
The spatial model of soil AWC in China, based on texture and organic matter, was analyzed.
研究中对基于土壤质地和土壤有机质的我国土壤awc模型进行了空间分析。
Most of soil texture ranges from clay loam tO loam clay.
土壤质地多为重壤土至中粘土,呈强酸性反应。
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