搜索结果: 1-10 共查到“知识库 土壤学 Factors”相关记录10条 . 查询时间(0.453 秒)
不同土层土壤水分特征曲线的空间变异及其影响因素（Spatial Variability of Soil Water Retention Curve in Different Soil Layers and Its Affecting Factors）
土壤水分特征曲线 空间变异 多重分形
2010/1/28
利用多重分形和联合多重分形方法，对陕西杨凌地区0～20cm和20～40cm土层van Genuchten模型参数的空间变异性及其影响因素进行了研究。结果表明：0～20cm和20～40cm土层参数α都具有明显的多重分形特征，空间变异性较强，且分别是由低值和高值分布引起的；参数n和θs的多重分形特征不明显，空间变异性较弱。0～20cm和20～40cm土层van Genuchten模型参数与土壤物理特性...
Magnitude of Annual Soil Loss from a Hilly Cultivated Slope in Northern Vietnam and Evaluation of Factors Controlling Water Erosion
Annual Soil Loss a Hilly Cultivated Slope Northern Vietnam Water Erosion
2009/12/2
A soil erosion experiment was conducted in northern Vietnam over three rainy seasons to clarify the magnitude of soil loss and factors controlling water erosion. The plot had a low (8%) or medium (14....
Factors responsible for differences in uptake of integrated soil fertility management practices amongst smallholders in western Kenya
Adoption soil fertility integrated soil fertility management
2010/9/14
To address soil fertility depletion and the attendant low agricultural productivity in western Kenya, many attempts have been made to develop and popularize integrated soil nutrient management (INM) p...
The Procedure of Arable Land Classification on the Basis of Landscape Ecological Factors
Arable land classification Land use Landscape ecology Mesh data Multiple regression analysis
2009/8/6
In order to develop the procedure of arable land classification, we forced to adopt the viewpoint of landscape ecological classification depending on the analogy of topographic and edaphic factors, n...
冲击作用下粘性土壤破碎体的分形维数与影响因素（Fragmentation Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors）
粘性土壤 冲击破碎 破碎体分形维数
2009/5/22
给出冲击破碎分析的两倍尺度控制约定,研究粘结态土壤破碎体生成的影响因素，建立了土壤破碎体分形维数与落锤质量、冲击行程、土壤含水率、破碎比能之间的关系。结果表明，土壤破碎体的分形维数与落锤质量及冲击行程没有联系，但分形维数与土壤含水率及破碎比能具有明显的相关性。另外，通过比较得知土壤在冲击作用下的破碎体分形维数远远低于植被土样的分形维数。
Effect of edaphic factors on root colonization and spore population of arbuscular mycorrhizal fungi
Edaphic factors AM root Colonization AP Spore population
2009/3/12
Arbuscular mycorrhizal (AM) fungi in agricultural crops grown under AEZ-28 (CARS, Joydebpur), AEZ-9 (RARS, Jamalpur), AEZ-11 (RARS, Ishurdi) and AEZ-23 (RARS, Hathazari) in Bangladesh were assessed d...
Factors influencing Chinese consumer behavior when buying innovative food products
consumer behavior genetically modified (gM) food china multi-attribute model structural equation modeling
2014/3/3
This study conceptualizes a model of chinese consumers’ purchase decision for the gM foods by empirically testing the interrelationship among the gM food purchase decision determinants with a multi-at...
The development of main factors of the wine demand
wine wine production wine demand wine consumption consumer preferences
2014/3/3
The paper identifies and analyses the main factors which influenced the wine demand. The average annual wine consumption per capita is the basic factor of the wine demand. The average annual wine cons...
The Ammonium Fixation in Great Soil Groups of Tokat Region and Some Factors Affecting The Fixation I. The Affect of Potassium on Ammonium Fixation
Ammonium Fixation Great Soil Groups of Tokat Region Fixation I.
2009/1/15
The objective of this study was to evaluate the fixation of ammonium in the soils of Tokat region to find out the important factors influencing them. For this purpose 12 representative soil samples we...
Over-wintering of the Colorado potato beetle (Leptinotarsa decemlineata Say) in field conditions and factors affecting its population density in Estonia
Colorado potato beetles overwintering soil type mortality
2010/1/14
The adaptation of Colorado potato beetles (CPB) (Leptinotarsa decemlineata Say) to low temperatures has been the basis for the formation of a local permanent population in Estonia. The number of this ...