dryland soil conservation

The protected field soil,of which the acidification is serious in Shenyang region,is taken as studying object in this paper.

以沈阳地区酸化比较严重的保护地土壤为研究对象,采用淋洗模拟试验的方法,通过测定淋洗后土壤pH值和全盐量、淋洗出的盐分离子含量,研究了土壤pH值与离子组成、含量之间的关系。

The relationship of soil salinity accumulating and pH was studied by measuring salinity content,ion constitution and pH of the protected field soil in Shenyang of Liaoning province.

对辽宁省沈阳市于洪地区保护地土壤盐分含量及其离子组成和土壤pH值进行测定分析,研究保护地蔬菜栽培对土壤盐分和土壤pH值的影响。

Effects of fertilization on the potential of methane oxidation in upland soil;

氮肥对旱地土壤甲烷氧化能力的影响

Available P, K, Fe, Mn, Cu, Zn, Ca and Mg of some upland soils in Hubei province were determined by both ASI and routine methods.

分别用ASI法与我国常规分析方法测定了湖北省3大类旱地土壤共153个样品的有效P、K、Fe、Mn、Cu、Zn、Ca和Mg的含量,并进行了相关性研究。

The distribution pattern of fixed ammonium and maximum capacity of ammonium fixation in the profiles of several cultivated upland soils and paddy soils in Hunan province,China,and their influencing factors were studied with sampling on fields,and laboratory incubation and determination.

通过野外调查取样、室内培养试验和分析测定,研究了湖南主要旱地土壤和稻田土壤固定态铵含量与最大固铵容量的剖面变化特征及其影响因素。

Effects of soil-surface mulching on organic carbon,inorganic carbon and light fraction organic carbon in dryland soil

不同地表覆盖栽培对旱地土壤有机碳、无机碳和轻质有机碳的影响

Although the averaged P sorption maxima of upland soils derived from Langmuir sorption plot was a little higher than that of paddy soils the potential of P loss from upland soils to waterbodies was greater because upland soils usually had a much higher P level.

旱地土壤中流失的磷是地表水体中磷的重要来源 ,本文通过模拟实验对比太湖地区丘陵旱地土壤和水稻土对磷的吸持解吸特征 ,结果表明虽然旱地土壤对磷的固定能力略高于水稻土 ,但由于旱地土壤的有效磷水平普遍高于水稻土 ,因而前者磷的吸持饱和度 (DPS)要大大高于后者 ,这就决定了旱地土壤中的磷被淋溶或以溶解态随径流流失的风险和数量也显著高于水稻土 。

The nitrogen leaching loss from the soils in dry land at different depths (20, 40 and 60 cm) of columns was studied.

用土柱研究旱地土壤60cm土体夏季的氮肥淋溶损失，结果表明，在土壤施尿素后35d内淋水350mm，在不产生泾流的条件下，淋失率平均为25。

Acidity Characteristics and Acidification Mechanism of Soils in Protected Fields

保护地土壤酸度特征及酸化机理研究

Effects of soil salinity accumulating and ion constitution on pH in the soil of protected field

保护地土壤盐分积累及其离子组成对土壤pH值的影响

Diversity of Soil Fungi in Protected Lands of Northeastern China;

东北地区保护地土壤真菌多样性的研究

Diversity of Bacteria and Archaea in the Soil of Protected Land;

保护地土壤细菌和古菌群落多样性分析

Study on Quantity and Species of Fungi in Cover Vegetable Field

秋冬季保护地土壤真菌种类和数量的研究

Study on Soil Fusarium Species Distribution in Greenhouse in Hebei

河北蔬菜保护地土壤镰孢菌种群分布研究

EFFECT OF IRRIGATION METHODS ON MINERALIZATION OF SOIL ORGANIC NITROGEN IN PROTECTED FIELD

灌溉方法对保护地土壤有机氮矿化特性的影响

Effect of Different Irrigation Methods on Soil Temperature in Greenhouse

不同灌溉方法对保护地土壤温度的影响

Effects of Water and Fertilizers on Available N and P of Protected Soils Planting Capsicum

水肥处理对辣椒保护地土壤速效氮、磷的影响

Research on Fungus Chaff's Impact on the Soil Microbe Flora in the Greenhouse

菌糠对保护地土壤微生物区系影响的研究

UP-PCR diversity analysis of Fusarium population isolated from greenhouse melon soils

瓜类保护地土壤镰孢菌种群及UP-PCR多样性分析

Current Situation of Farmland Soil Utilization and Countermeasures of Soil Protection in Fuzhou City;

福州市耕地土壤利用现状与保护对策

Plants cover the soil.

植物覆盖和保护着土壤。

Project Conservation of Soils and Watershed

土壤和分水界保护计划

Drip Irrigation under Mulch and Water Movement in Soil of Cucumber in Protected Field

保护地黄瓜膜下滴灌及土壤中水分运行

SOIL'S ENZYME ACTIVITY IN DIFFERENT CONSERVATION TILLAGE IN SLOPING LAND

旱作坡耕地保护性耕作土壤酶活性研究

Fractal dimension characteristic of soil particles during the grassland reclamation and protection

草地开发与保护过程中土壤颗粒分形特征

Issues of Soil Quality in Eastern Liaoning and Protective Measures

辽宁东部地区土壤质量问题与保护措施