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Cu(II)、Pb(II)和Cd(II)在红壤胶体和非胶体颗粒上吸附的比较
红壤 土壤胶体 矿物组成 表面电荷 重金属 吸附-解吸
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2018/4/28
研究了湖南长沙和海南昆仑的2种红壤胶体和非胶体的矿物组成、阳离子交换量（CEC）及Cu(II)、Pb(II)和Cd(II)在土壤胶体和非胶体颗粒表面的吸附行为，以明确红壤胶体对土壤表面化学性质的贡献。X射线衍射分析结果表明，两种红壤胶体的矿物组成均以次生矿物为主，次生矿物又以1:1型高岭石所占比例最高。土壤非胶体颗粒中石英等原生矿物含量较高。土壤铁铝氧化物主要富集在土壤胶体部分，土壤胶体颗粒中游离...
Selection of catchment descriptors for the physical similarity approach. Part II: Application
a priori SAC-SMA model parameters catchment characteristic MOPEX catchments regionalisation
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2015/3/9
This paper demonstrates an application of the previously published method for selection of optimal catchment descriptors, according to which similar catchments can be identified for the purpose of est...
添加农作物秸秆炭对红壤吸附Cu(II)的影响
红壤 生物质炭 作物桔杆 吸附
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2012/8/1
为考察秸秆生物质炭在重金属污染红壤修复中的作用，用一次平衡法研究了由花生秸秆、大豆秸秆、稻草和油菜秸秆制备的4种生物质炭对采自江西和广西的2种红壤吸附Cu(II)的影响及其机制。结果表明，添加由农作物秸秆制备的生物质炭提高了红壤对Cu(II)的吸附量，生物质炭对Cu(II)吸附的促进作用随生物质炭添加量的增加而显著增加，低pH值条件下促进作用更明显。pH4.0和w 为2%生物质炭添加水平下，油菜秸...
Interactive Effects of Soil Water Regime with Above-Ground Conditions on Photosynthesis in Wheat Plants:II. Combined effects of soil water deficit with low air humidity
Humidity Leaf position Photosynthesis Ribulose 1 5-bisphosphate carboxylase/oxygenase
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2009/8/6
Effects of soil water deficit, low air humidity and in combination were examined at the milky stage under controlled conditions. Low air humidity which plants experienced prior to measurement affected...
Village-Level Studies on Rice-Based Cropping Systems in the Low-Lying Areas of Bangladesh : II. Toposequence, hydrology, land classification and cropping patterns in the Bogra District of the Barind Tract
Bangladesh Cropping pattern Land classification Multiple cropping Shallow tube-well irrigation
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2009/7/22
An intensive village-level survey on the change of land use and cropping systems was conducted in the village of Aira (Bogra District of the Barind Tract, a Pleistocene terrace) from the Aman season 1...
IMPROVEMENT OF THE EFFECTIVENESS OF MAIZE (Zea mays L.) FERTILIZATION WITH NITROGEN BY THE APPLICATION OF MAGNESIUM PART II. CONTENT OF NUTRIENTS IN GRAIN AND ITS ENERGETIC VALUE
fertilizer application method magnesium maize cultivar types nitrogen
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2009/4/1
Field experiments were carried out at the Didactic and Experimental Farm in Swadzim (52o26’ N; 16o45’ E) near Poznań in the years 2004-2007. The experiment was carried out in a „split-plot” des...
BORDER EFFECTS IN TRIALS WITH OAT AND YELLOW LUPINE MIXTURES Part II. RESPONSE OF OAT AND LUPINE PLANTS GROWN IN MIXTURES AND PURE SOWING TO NEARNESS OF EXPERIMENTAL PATHS
border effects mixtures oat sowing rate yellow lupine
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2009/4/1
The field trial was conducted for three years on the sandy soil, the rye soil complex. The response of oat and yellow lupine to the border interaction with paths splitting the plots was determined. Th...
ENERGY RESOURCES OF AGRICULTURAL ORIGIN PART II. BIOMASS AS A SOLID FUEL（REVIEW）
renewable energy biomass energy crops solid fuels
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2009/3/30
Biomass for direct combustion can be obtained from short rotation willow coppice harvested in annual or 2-3 year cutting cycles and as a supplement, from some perennial crops of C4 photosynthesis as ...
Strength of Individual Soil Aggregates Against Crushing Forces II. Influence of Selected Soil Properties
Individual Soil Aggregates Crushing Forces II. Selected Soil Properties
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2009/1/15
The objective of this study was to determine the influence of selected soil properties on the relative strength of individual oil aggregates against crushing forces. Soil aggregates were crushed betw...
Winter Annual Cover Crops in a Virginia No-till Cotton Production System: II. Cover Crop and Tillage Effects on Soil Moisture, Cotton Yield, and Cotton Quality
Virginia No-till Cotton Production Winter Annual Cover Crops
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2008/5/19
Winter annual cover crops could help control soil erosion problems on sloping Piedmont soils in a no-till cotton (Gossypium hirsutum L.) production system. Field experiments were conducted from 1995 t...
用吸附平衡法研究了不同草酸浓度、体系pH对针铁矿 (G)吸附Cd2+的影响与机制以及电解质 (KNO3)浓度对针铁矿、草酸化针铁矿 (G+40 )吸附Cd2+的影响差别及原因。结果表明 ,低浓度草酸 (<1mmol·L-1 )促进Cd2+的吸附 ;高浓度草酸 (>1mmol·L-1/sup> )抑制Cd2+的吸附。已吸附在针铁矿表面的草酸对Cd2+ 吸附的影响与液相中草酸的影响不同 ,这主要与草酸...