干旱河谷的土壤物理退化呈现地段性差异。
Changes in soil physical properties along the river gradients.
分析了爆炸对周围土壤物理、力学性质的影响。
The influences of explosion on the physical and mechanical properties of the surrounding soil are analyzed.
针对不同退化程度的湿地土壤物理特征的变化进行了分析。
This paper analyzes the change regularity of soil physical characteristics of degraded wetlands.
而物理性状（除土壤板结外）基本是良好的土壤物理构造。
The physical structure of the soil basically showed favourable characteristics except for hardening.
可改善土壤物理特征，改良土壤团粒结构，减少土壤密实性。
Can Improve the soil physical characteristics, soil aggregate structure, reduce soil compactness.
稻田养鸭、养鱼能明显改善土壤物理性状，提高土壤的通气性。
Raising duck or raising fish in rice field can clearly improve soil physics properties and the soil aeration.
土壤团聚体稳定性是评价土壤结构和土壤物理形状的重要指标。
The soil aggregates stability is one of the important factors to analyze soil structure.
不同恢复措施的土壤物理结构、土壤化学性质均获得明显的改善。
The soil physical structure and the soil chemical properties in two restoring measurement are obviously improved.
主要结论如下：(1)林粮间作能较好地改善土壤物理和化学性质。
The main conclusions can be drawn as follows: (1) Intercropping could obviously improve soil physical and chemical properties.
本文概述了国际土壤物理学的发展趋势和中国土壤物理研究前景展望。
This paper deals with the international development of soil physics, and the prospects for soil physics in China are given.
土壤主要营养成分及土壤物理性状则有随林分密度降低而改善的趋势。
Conversely, the nutrition and soil physical property were enhanced with the decrease of density.
最糟糕的是土壤物理结构的变化，如果表层土壤侵蚀，土壤更难保水保肥。
Worst of all, the physical structure changes if the top soil erodes, making it harder for the land to retain water or fertiliser.
研究了不同耕作方式对土壤物理特性、水分状况、甘蔗苗期生长的影响。
The effects of various tillage practices on soil properties, soil water status and sugarcane growth in seedling period were investigated in this paper.
在以往研究中，人们一直强调以土壤物理、化学特性作为土壤质量指标。
Soil quality assessment is based on soil function with different criteria in accordance with soil types.
提出利用土地环境条件、土壤物理特性、土壤养分因子反映矿区土地质量。
It is proposed that mined land quality can be estimated by environmental conditions, soil conditions, such as nutrient contents, physical factors.
研究了不同耕作方式对土壤物理特性、水分状况、甘蔗苗期生长的影响 。
Effects of different tillage methods on saturated hydraulic conductivity and compactiveness of the surface soil;
有机肥与化肥配合施用，土壤有机质呈增加趋势，有利于土壤物理环境的改善。
Mixing application of organic and inorganic fertilizer is favorable to increase amount of soil organic matter and to improve soil physical environment.
研究吉林玉米带现行耕作制度下所形成的剖面构造特征对土壤物理特性的影响。
The research aimed to study the effects of the profile conformation characteristics of Jilin corn belt under current farming system on the physical characteristics of soil.
在干旱地区土壤中的粘粒矿物组成是影响土壤物理和化学特性的重要因素之一。
Clay mineral compositions are one of important factors that influencing the chemical and physical characteristics of soils in the arid regions.
采用多元逐步回归模型用常规土壤物理参数对土壤水分入渗模型参数进行预报是可行的。
It is feasible to predict soil infiltration capacities by routine physical parameters with stepwise regression models with multiple units.
结果表明，造纸黑液适量施用能改善土壤物理性状，增加土壤有机质含量和氮、钾含量；
Results show that the proper application of black liquor of papermaking can improve the soil properties and increase the contents of organic materials, N and K in soil.
养分的有效性是由土壤物理、化学和生物学特性，特别是根系主导的根际动态过程所决定的。
The availability of mineral nutrients for plants is determined by the chemical, physical and biological characteristics of soils, especially by root-induced changes in the rhizosphere.
以往对紫色土的各种研究都忽略土壤砾石的性质和空间分布，以及对土壤物理和化学性质的影响。
The previous researches on purple soils neglected the properties of rock fragments, the distributions of rock fragments, and the influence on soil physical and chemical properties.
但生产内容单调，多数为纯粮型种植结构，经济效益不高，不利丰富社会产品和改善土壤物理性状。
But the low benefit of mono - cereal cropping structure is their main weak point which are unfavourable for providing plentiful agricultural products and improving the physical character of soil.
结果表明：生草可改善土壤物理性状，使土壤容重平均降低5.68%，总孔隙度提高6.15%。
The results indicated that green coverings improved soil physical characteristics, soil bulk density decreasing by 5.68% and the soil porosity increasing by 6.15%.
结果表明：土壤物理、化学、生物学性质的恶化是长春市街路树木病虫害严重发生的主要原因。
Result shows that the main reason for serious occurrence of pest and disease on street afforestation trees is the deteriorating of the physic-chemical and biological properties of soil.
模式所需的输入为初始土壤含水量、土壤物理常数、作物播种期、逐日平均气温、相对湿度和降水量。
The desired input parameters were soil physical constants, crop 's developmental date, initial soil water content and daily air temperature, relative humidity and precipitation.
基于清徐大田土壤试验研究了土壤的凋萎系数与其土壤物理性粘粒含量、有机质含量以及土壤全盐含量之间的关系。
The relation between the wilting point with the soil physics characters as clay content, organic matter content and the salt content have been studied based on the experiments in field.
在此基础上运用统计学方法从三个方面研究土地利用、不透水层、土壤物理特性等流域特性对这17个流量指数的影响。
We used statistical methods to quantify the effects of land use types, impervious surface, and soil physical properties on 17 flow metrics in three aspects.
四种改良剂均能不同程度的改善土壤物理性状，能降低土壤容重，提高土壤总孔隙度，加快渗透速度，增加田间持水量。
Four kinds of amendments can improve soil physical properties. Soil bulk density decreased, soil porosity, permeability coefficient and field capacity increased under treatments.
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