搜索结果: 1-15 共查到“农学 Soil Organic Matter”相关记录17条 . 查询时间(0.223 秒)
Assessing the amount of soil organic matter and soil properties in high mountain forests in Central Anatolia and the effects of climate and altitude
forest soil topographic conditions climate model semi-arid regions Turkey
2017/6/26
The objectives of this study were to determine the amounts of soil organic matter (SOM) stored within surface soils of high mountain forests and how the SOM amounts are affected by aridity and altitud...
Changes of soil organic matter under minimum tillage in different soil-climatic conditions
Cambisol Chernozem humus content and quality humus fractionation minimum tillage
2015/3/2
Quantitative and qualitative soil organic matter properties were observed in a specific large area experiment (Chernozem – Gross Enzersdorf, Austria) and in a medium-term field experiment (Cambisol – ...
Influence of the degree of soil organic matter lability on the calcium carbonate equilibrium of soil water
calcium carbonate equilibrium degree of lability liming need soil organic matter soil water
2015/3/2
In average samples of three sandy-loamy acid Cambisols from a South Bohemian area labile organic matters were determined by the permangate method modified by the dichromate method, and the rate consta...
The influence of long-term organic and mineral fertilization on soil organic matter
long-term field experiment organic and mineral fertilization crop rotation soil organic matter
2015/2/4
Parameters evaluating soil organic matter quantity (organic C and N content) and quality (hot water extractable C content, aliphatic compounds, microbial biomass C content, basal respiration activity)...
A CENTURY 5 model using for estimation of soil organic matter behaviour at predicted climate change
carbon sequestration CENTURY 5 model climate change modelling regional climate scenario
2015/1/30
The trends of carbon sequestration behaviour have been estimated for the most fertile soil type of Slovakia based on the prognosticated regional climate change scenario. The processes were modelled an...
Characterisation of soil organic matter in long-term fallow experiment with respect to the soil hydrophobicity and wettability
long-term fallow experiment soil organic carbon FTIR spectra hydrophobic (A) and hydrophilic (B) functional groups wettability hydrophobicity
2015/1/30
Soil organic matter under different tillage and fertilisation systems of long-term fallow experiment established in 1958 in Prague was characterised in period of 1972–2004. This experiment consists of...
Soil Organic Matter and its Stability in Aerobic and Anaerobic Conditions
soils organic matter stability aerobic anaerobic conditions
2015/1/28
In eight samples of organic and organomineral surface horizons we studied the stability of soil organic matter in aerobic and anaerobic conditions expressed by the rate constant of its biochemical oxi...
Effects of different regimes of fertilization on soil organic matter under conventional tillage
soil organo-mineral complex soil humic acid soil fulvic acid
2014/10/28
To explore the effects of different fertilization regimes on soil organic matter (SOM) sequestration in a winter-soybean/corn rotation, a long-term field experiment was conducted in Anhui, China, from...
南京农业大学土壤学课件 Soil Organic Matter。
Potential and limitations of soil organic matter build-up in dry areas
Green manure soil organic matter water infiltration water stable aggregates
2011/1/13
Semi-arid areas comprise a large portion of the world’s agricultural crop land. These areas are characterised by high temperature and low rainfall which hinders soil organic matter accumulation.
Implications of Cereal-Based Crop Rotations, Nitrogen Fertilization, and Stubble Grazing on Soil Organic Matter in a Mediterranean-Type Environment
Mediterranean environment crop rotations soil organic matter organic carbon cereal stubble grazing nitrogen fertilization rainfed cropping
2009/1/8
Soil organic matter (SOM) is essential to all soil processes that have an impact on crop production and the environment. Soils of the semi-arid Mediterranean region are low in SOM due to environmental...
Changes in soil organic matter, bulk density and tensile strength of aggregatesafter percolation in soils after conservation and conventional tillage
percolation process carbon distribution aggregates strength
2008/11/26
The type of tillage in arable soils affects porosity of the soil and in consequence the hydraulic conductivity. The accessibility and mobility of organic carbon in arable soils can differ depending on...
Effect of management practices on soil organic matter, microbial biomass and aggregate stability of Orthic Luvisol
management practice organic matter microbial biomass aggregation
2008/11/21
Because of the importance of soil organic matter (SOM) and wet aggregate stability (WAS) on soil quality, the maintenance of satisfactory levels of these parameters is an integral component of soil m...
Emission of greenhouse gases and soil organic matter balance in different farming systems
organic farming greenhouse gases methane nitrous oxide
2008/11/19
Estimation of the influence of different farming systems on emission of greenhouse gases (methane and nitrous oxide) was the aim of the research. The research was conducted on the basis of a special f...
SOIL ORGANIC MATTER CHARACTERISTICS IN NATURE RESERVE ŽITAVSKÝ WETLAND - NATURA 2000 SITE
humus organic carbon
2010/12/7
The aim of this study was to characterize soil organic matter in the Nature Reserve Žitavský wetland. The area is located on a fluvial plain of Žitava River. Soil pits were trenched o...