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。
Most of these areas are occupied by acid tropical upland soils.
这些地区大多数为酸性热带旱地土壤。
Effects of different tillage measures on upland soil respiration in Loess Plateau
不同耕作措施对黄土高原旱地土壤呼吸的影响
Variability of Soil Nutrients of Dryland in Microtopography of Mid-Sichuan Hilly Region;
川中丘陵区旱地土壤养分微地形变异特征研究
Effect of Soil Surface Mulching on Carbon Fractions on Dryland;
不同地表覆盖对旱地土壤碳组分的影响
Research on Dryland Soil Fertility Index and the Comprehensive Evaluation in the Center of Guizhou
黔中地区旱地土壤肥力指标及综合评价研究
Studies on the Phosphorous Adsorption Curves by the Several Upland Soils in Anhui Province.
安徽省几种旱地土壤磷吸附曲线的研究
The Research of Dust Emission in Arid and Semi-arid Soil
干旱半干旱地区土壤的粉尘释放研究
Study of Preventing Leakage and Saving-Water Technique in Sandy Soil in Semiarid and Arid Region
干旱、半干旱地区沙质土壤的防渗节水技术研究
Soil Dematiaceous Hyphomycetes from the Arid-semiarid Zones of Northwest China;
中国西北干旱—半干旱地区土壤中的暗色丝孢菌
Hydrological characteristics of different forest types of soil in arid and semi-arid mountain
干旱半干旱区山地森林类型的土壤水文特征
drying out of once-fertile soils
以前肥沃的土壤逐渐变成旱地
Nutrient Diagnosis and Fertmzation in Soils in Fuji Apple Orchards in Rainfed Land
旱地红富士果园土壤营养诊断和施肥
Germination Characteristics of Seed Banks in Mining Wasteland of Arid Environments
干旱矿区废弃地土壤种子库特征研究
SOIL WATER INFILTRATING PROCESS IN AFFORESTED LAND ON SLOPES OF THE SEMIARID REGION OF LOESS PLATEAU
半干旱区人工林地土壤入渗过程分析
Freezing-Thawing Condition of Main Dryland Farming Soil Areas in Northeast China
东北主要旱地耕作土壤冻融环境分析
Effects of Different Manure Sources on Soil Characters in Upland Red Soil
不同有机肥源对红壤旱地耕层土壤性质的影响
Analysis of Soil Water Characters Between Upland Red Soil and Paddy Soil
旱地红壤与红壤性水稻土水分特性分析
State Key Laboratory of soil erosion and dryland farming on loess plateau
黄土高原土壤侵蚀与旱地农业国家重点实验室
