旱地土壤

基于BaPS系统的旱地土壤呼吸作用及其分量确定探讨

Determination of upland soil respiration and its components with BaPS System

应用BaPS系统研究旱地土壤硝化&反硝化过程和呼吸作用

Using BaPS System to Study Upland Soil Nitrification-Denitrification and Respiration

旱地土壤N2O排放与土壤脲酶活性关系的研究

Study on N_2O emission and urease activity in dryland soil

就整个麦豆轮作生态系统而言，旱地土壤分别是大气N2O、CH4的源汇。

Dryland soil is atmospheric N_2O source and is sink of atmospheric CH _4 .

在旱地土壤中磁化率与重金属元素Hg、Pb高度相关，与Cd、As和Cr不相关；

In dry land magnetic susceptibility is highly correlated with Hg and Pb and has poor correlativity with Cd 、 As and Cr ;

在小麦生长季，通气良好的旱地土壤表现出对CH4的吸收，大气CO2浓度升高促进土壤对CH4的吸收。

In wheat growth season , the elevated CO2 would stimulate CH4 absorption by dry aerobic soil from atmosphere .

有机无机肥配施有利于稻田和旱地土壤N、P、K养分和有机质（OM）含量增加，减缓土壤酸化进程。

Combination application of organic and inorganic fertilizer is benefit to increase of N , P , K and organic matter ( OM ) content in paddy soil and dryland soil .

水田土壤可矿化碳也对单施有机肥响应敏感（P0.05），而分解功能稳定性则对有机无机配施更为敏感，旱地土壤中则无明显的趋势。

Carbon mineralization potential in paddy soil also significantly responded to single application of organic fertilizer ( P0.05 ), while the functional stability of decomposition increased in NPK + OM .

硝、铵态氮肥对旱地土壤氧化亚氮排放的影响亚硝态氮对鲤鱼种血液SOD及GSH-Px的影响

Effects of nitrogen types on N_2O emissions of dry-land soil Activity of SOD and GSH-Px in the Blood of Fingerling Cyprinus carpio under Different Nitrite Concentration

施用有机物料后水田和旱地土壤DOM含量均以0～20cm土层最高，越向下含量越低。

The concentration of DOM was highest in the depth of 0 to 20 cm and decreased with depth both two soils .

在供试的旱地土壤中DOM主要迁移深度为40cm，少量DOM可迁移到60cm。

Meanwhile the mainly transference depth of DOM was 40 cm and a little of DOM can transfer to the depth of 60 cm .

对湖北省的主要旱地土壤种植多茬作物后油菜生产锰毒的原因进行了研究。结果表明，供试土壤pH值较原土样下降了1.0个单位。

The main upland soils of Hubei Province were planted for 4 ~ 6 crops of cotton and rape in pot experiment ( rotation ), and in last crop of rape , soil pH decreased 1 . 0 unit .

以Langmuir曲线测出的Xm值（最大吸磷量）为指标，对不同施肥条件下红壤旱地土壤的吸磷能力变化特征及影响磷素吸附的主要因素进行了研究。

Characteristics of phosphorus adsorption by upland red soils different in fertilization and their affecting factors were studied with X_m-value calculated out of the Langmuir curve as index .

在粉砂粘壤土上，降水对休闲地和旱地土壤NO-3-N累积的影响主要在0～2m的深度范围；

In silty clay loam , precipitation mainly influenced soil nitrate nitrogen concentration in a depth of 0 ~ 200cm in fallow land and dryland .

利用土壤探头法和密闭气室法相结合，就黄土高原旱地土壤玉米生长期灌溉和降水对N2O气态损失的影响进行了研究；

By using soil bores and closed chamber methods , field experiments were carried out in the semiarid area of dry land to study the effects of irrigation and rainfall on the N2O loses .

引用Arya估测土壤持水特性的物理经验模型和Gardner双曲线模型，对湖北省10种旱地土壤的持水特性进行了计算和分析。

The physical empirical patterns of the water holding characteristics of 10 dry land soils in Hubei Province were calculated and analysed by Arya Model and the Gardner Curve .

结果：施用K＿2O0.3g／kg和0.6g／kg，4种土壤上油菜幼苗鲜、干重均较不施对照增加，但两种旱地土壤的增值小于两种水稻土。

The results showed that the fresh and dry weights of rape seedlings in the four soils were all increased by application of 0.3, 0.6g K2O / kg , but the increasing rates of two upland soils were lower than those of two paddy soils .

而旱地土壤由于淋溶作用微弱，锰仅在第二层（20-40cm）富集。

But in profiles of dryland soil , Mn leaching was much weak and Mn only accumulated in the second layer ( 20-40cm ) .

以土壤水动力学原理为基础，研究降雨条件下旱地土壤水分的运动规律，建立了一维垂直非饱和土壤水分运动的数学模型，采用有限差分法FDM求解数学模型。

On the basis of soil-water dynamics , soil-water movement rules in upland field with rainfall are researched , and a one-dimensional vertical unsaturated soil-water movement mathematic model is established . Finite difference method is used in solving the mathematic model .

古旱地土壤及底层土壤PAHs含量在32.0~36.9μg.kg-1.古水稻土中，2环和3环所占比例较大，达63%，萘和菲含量最高，而4环以上的多环芳烃含量较低。

In ancient paddy soil , the concentrations of 2-ring and 3-ring PAHs took a larger portion of 63 percents to the total PAHs , and naphthalene and phenanthrene were the most abundant compounds , while PAHs of more than 4 rings took a small part .

供试旱地土壤和水田土壤各形态有效锰含量的剖面分布明显不同，供试旱地土壤各形态有效锰含量均在第二层（20-40cm）土壤富集，但剖面分布规律不是很一致；

The contents and profile distributions of various fractions of available Mn in the soils were remarkably different . For the tested upland soils , various chemical fractions of available Mn accumulated in the second layer ( 20-40cm ) .

一般土壤中，全氮含量为0.10.2%，速效氮一般不超过全氮量的1%，通常为580ppm，旱地土壤的铵态氮含量为1.414ppm。

The content of quick effect nitrogen is no more than 1 % of the total nitrogen . Ordinarily it is 5 80ppm , In soil of arid land the ammonium content is about 1.4 14ppm .

其中，旱地土壤的侵蚀最为严重；

The soil erosion in dry farmland was the most serious ;

砖红壤地区旱地土壤肥料养分淋失研究进展

Research Advances on Leaching of Fertilizer Nutrients in the Latosol Areas

旱地土壤硝态氮残留淋溶及影响因素研究

Nitrate Nitrogen Residue and Leaching in Dryland Soil and Influence Factors

提高旱地土壤氮肥利用效率的途径和对策

Ways and strategies for increasing fertilizer nitrogen efficiency in Dryland Soil

黄土高原旱地土壤水资源管理

Management for Soil Water Resource in Dryland of Loess Plateau

云阳县旱地土壤退化及防治

Degradation of Upland Fields in Yunyang County and Its Control

施肥对旱地土壤供水特征的影响

Effects of Fertilization on the Properties of Soil Water Supply in Dryland

几种农作措施对旱地土壤水分状况的影响

Effects of Several Agricultural Measures on Soil Moisture Regime in Rainfed Farmland