搜索结果: 1-15 共查到“农学 loess”相关记录17条 . 查询时间(0.062 秒)
Developing Additive Systems of Biomass Equations for Robinia pseudoacacia L. in the Region of Loess Plateau of Western Shanxi Province, China
Robinia pseudoacacia L. Loess Plateau additive biomass models error structure likelihood analysis seemingly unrelated regression
2024/1/12
The accurate estimation of forest biomass is important to evaluate the structure and function of forest ecosystems, estimate carbon sinks in forests, and study matter cycle, energy flow, and the effec...
Seasonal Variations in Carbon, Nitrogen, and Phosphorus Stoichiometry of a Robinia pseudoacacia Plantation on the Loess Hilly Region, China
ecological stoichiometry plants-litter-soil seasonal variation plantation Loess Plateau
2024/1/11
Seasonal variations in stoichiometry are a crucial regulatory mechanism for plant communities that respond to environmental changes. However, the seasonal characteristics of stoichiometry in plants, l...
Influence of Abiotic and Biotic Factors on Soil Microbial Biomass in Robinia pseudoacacia Plantations in the Loess Hilly Region
Robinia pseudoacacia driving factors interactive effect forward selection general linear model
2023/12/21
The ecological productivity of the Robinia pseudoacacia L. (RP) widely cultivated on the Loess hilly region has been widely questioned with its aging. Soil microbial biomass (SMB) plays a key role in ...
Understory Plant Abundance Is More Important than Species Richness in Explaining Soil Nutrient Variation Following Afforestation on the Eastern Loess Plateau, China
afforestation soil organic carbon total nitrogen total phosphorus understory vegetation biomass
2023/12/1
Afforestation plays an important role in controlling soil erosion and nutrient loss on the Loess Plateau in China. However, previous studies on soil nutrient changes have mainly focused on the effects...
Optimal forest rotation periods: integrating timber production and carbon sequestration benefits in Pinus tabulaeformis plantations on the Loess Plateau, PR China
Optimal rotation period timber production benefits carbon sequestration avenues ARIMA models
2024/2/27
Determining the optimal rotation period was a crucial component of forest sustainable management strategies, especially under climate change. This paper had two objectives: (1) to determine the econom...
Soil reinforcement by a root system and its effects on sediment yield in response to concentrated flow in the loess plateau
Root Soil Properties Soil Erosion Sediment Yield Loess Plateau
2013/3/4
The importance of roots in soil conservation has long been underestimated due to a lack of sys-tematic studies conducted to evaluate root dis-tribution patterns and their effects on soil ero-sion. Cur...
Variability of soil water-physical properties in a small catchment of the Loess Plateau, China
Geostatistical analysis regression analysis rainfall seasn land use pattern
2011/1/13
Data from the Donggou small catchment, located in a typical wind-water erosion crisscross zone on the Loess Plateau of China, illustrate the spatial variability of soil water-physical properties of di...
Water Relations of 4 Afforestation Species in the Loess Plateau,China
Loess Plateau pressure-volume curve revegetation in arid areas transpiration water relations
2009/8/24
Water consumption patterns and leaf water relations obtained from P-V curves were compared to examine the suitability for afforestation among one-year-old seedlings of 4 tree species, Robinia pseudoac...
Impact of the long-term straw supply on loess-derived soil structure
plant residues slaking soil structural properties organic matter
2008/11/26
Keeping plant residues on the field and incorporating them instead of removing or burning them, is a well-known practice in soil and water conservation. One of the objectives of this management is to...
Effect of organic carbon content on the compactibility and penetration resistance of two soils formed from loess
soil compactibility Corg. content penetration resistance bulk density
2008/11/21
Penetration resistance and bulk density were measured in the laboratory for two soils: grey-brown and brown, both formed from loess with different Corg. content which had been compacted using the Proc...
Influence of long-term liming on aggregate stability of a loess-derived soil
liming aggregate stability settlement loessial soil surface sealing
2008/11/18
Results of a long-term field trial on a silt loam soil near Freising (Upper Bavaria) show that evaluating the meliorative effect of liming on soil structural properties depends on the initial homogene...
Methane and carbon dioxide emissions from a loess soil treated with municipal waste water after second step of purification
methane emission carbon dioxide municipal waste water redox potential
2008/11/14
The aim of the study was to determine in laboratory conditions CH4 and CO2 emissions from a soil with including redox potential (Eh). Experiment was carried out under laboratory conditions on Ap horiz...
Nitrates(V) in loess soils modified by weather conditions(preliminary data of a model experiment)
nitrates(V) Eh pH loess soils anaerobic conditions
2008/11/13
In a model experiment (anaerobiosis) with full
saturation of soil samples with water and their incubation at 5, 10
and 20°C during 0-60 days, nitrates(V) concentration in soil solution,
Eh and pH i...
Studies on platinum (IV) ions sorption in loess and loamy soils
platinum ions sorption loess soil loamy soil
2008/11/12
The aim of the experiment was to study the sorption of platinum ions in loess and loamy soils in the presence of Pb(II) and Cd(II) ions, in relation to temperature, incubation time and concentration o...
0.25 mm water stable aggregate content, the soil sheer strength and the soil erosion intensity were analyzed, which showed that the first and seventh years were the turning years of the so...