土壤空气

农田土壤空气CO2动态和土壤&大气界面CO2释放的研究

Study on Soil Air CO_2 Concentration and Soil CO _2 Evolution in Farmland Soils

浑水灌溉禁锢土壤空气压力影响的研究

Study on the effect of muddy irrigation on soil air pressure

农田土壤空气中CO2变异特征及移动的动力学机制

Variation Characteristics of Soil CO_2 and Its Plow Dynamic Mechanism in the Farmland

路南石林地区土壤空气中CO2浓度分布规律与土下溶蚀形态研究

The case study of subsoil solution features and soil co_2 concentration in stone forest region , lunan , yunnan , China

大气中的COZ与土壤空气中的CO：都受温度的影响。

CO2 in air and soil are all influenced by temperature .

以无锡地区典型水稻土稻麦轮作田为对象，研究和讨论了农田不同层次和时间土壤空气中CO2浓度变化规律，以及温度、降水、环境CO2浓度升高和作物生长对土壤CO2浓度变化的影响。

The dynamics of the concentration of soil CO_2 in different layers of a rice-wheat rotation field in Wuxi and at different time was monitored and the influences of temperature , precipitation , environmental CO_2 concentration and crop growth on soil CO_2 were studied .

土壤空气中的CO：浓度远高于大气中的C02浓度，土壤释放使土壤成为大气CO：的一个源。

CO2 concentration in soil is much higher than that in air , CO2 release makes soil to become a source of CO2 in air .

土壤空气压力影响下的非饱和入渗格林-安姆特模型

Green-Ampt model for unsaturated infiltration affected by air pressure entrapped in soil

土壤空气阻力对水平畦灌溉的影响

Effect of soil air resistance on level basin irrigation

本文利用自由入渗试验、恒定土壤空气压力入渗试验和土壤水力性能试验结果，给出了禁锢土壤空气压力影响下的格林-安姆特模型。

On the basis of experimental result , the Green-Ampt model for unsaturated infiltration affected by entrapped air in soil is established .

恒定土壤空气压力对累积入渗水量的影响约为0.4%～3%；

The entrapment of soil air block the water moves . The soil air stable pressure effected infiltration and moist van developed speed about 0.4 % ~ 3 % .

根据室内及田间恒定土壤空气压力、正常积水入渗过程中湿润层土壤含水量的变化，观察了禁锢土壤空气压力及入渗水流的变化过程。

According to the variation of the water volume in the wet layer which exists in the stable soil air pressure infiltration and the normal infiltration indoors and outdoors , we have observed the process of the soil air entrapment pressure and the infiltration water flow .

但如果人们把它们扔掉,有毒化学物质会进入土壤或空气,影响环境和人们的健康。

But if people throw them away , the toxic chemicals can get into the earth or air , affecting the environment and people 's health .

每一种昆虫都贡献了一些事情，就象蚂蚁松土给土壤增加空气一样。

Each insect contributes something just as ants aerate the soil .

土壤和空气中的湿度高或贫瘠土壤等环境因素及增施N素肥料等，都会加重植物受害。

Plant would damaged more with high humidity in soil and air , poor soil and application of N fertilizer .

植物体内PAHs的浓度与其在土壤及空气中浓度呈正相关。

The bioconcentration factors ( BCFs ) of plants for PAHs decreased with the increase of PAHs concentrations in ambient air or soil .

氟（fluorine，F）是电负性最强的非金属元素，广泛分布于自然界，人可通过各种来源如水、土壤、空气接触到氟化物。

Fluorine is the most electronegative metallic element widely distributed in nature , people exposure to fluoride through a variety of sources such as water , soil and air .

基于土壤与空气之间的对流和扩散原理，利用标有尺度的钻杆，从不同度试土壤中取得CO2样品，用胶管直接通入便携式红外CO2分析器进行测定。

Samples of CO2 in soil at different depths are extracted by a drilling pole ( with depth scale on it ) and transfered directly into a portable infrared CO2 gas analyzer through a rubber tube .

自上世纪70年代，PCBs生产和使用已被禁止，但由于其高度稳定性，现仍广泛残留在土壤、空气、水体和生物体内。

Although their production and use were banned from 1970s ', their residues have been detected extensively in soil , air , water and in biological organisms because of their extreme stability .

风土条件（terroir）的最重要组成部分有可能是那些存在于土壤和空气中，且与地势、气候和人没有任何关系的独特而复杂的微生物种群。

The most important component of terroir - that is nothing to do with topography , climate or man - may be the particular complex of micro-organisms in the soil and atmosphere .

覆盖物在土壤与空气之间形成屏障。

Mulch forms a barrier between the soil and the air .

土壤&空气换热系统流动与供冷性能的计算模拟

Numerical simulation of flow and cooling performance of the earth-air heat exchangers

土壤和空气中纤维素酶高产菌株的筛选

Isolation of High Cellulase-Producing Culture Strain in Soil and Air

土壤-空气换热系统传热的数值模拟

Numerical Simulation of the Heat Transfer in an Earth-air Heat Exchange System

农地膜作为土壤和空气中得一层薄的隔离。

Mulch provides a thick barrier between the soil and the air .

土壤中空气对土结构和入渗过程的影响

Experimental study of the air entrapment effects on soil structure and infiltration

有土壤，空气和适宜的温度，植物一定会生长。

Given earth , air and due temperature , the plant must grow .

在土壤和空气中得到的原料

Raw materials taked from the soil and air

土壤、空气湿度对嫁接成活率有较大影响。

Meanwhile , soil , air humidity has relatively impact to the grafted survival rate .

耕作土壤表面空气动力学粗糙度是评价土壤可蚀性的重要指标。

Aerodynamic roughness length is a important feature to easement soil resistance to wind erosion .