Kazem Zamanian
Dados Biográficos
| ID | 5601933 |
|---|---|
| NOME | Kazem Zamanian |
| PRENOMES | Kazem |
| SOBRENOME | Zamanian |
| ASSINATURA | ZAMANIAN K |
| AFILIAÇÕES | Leibniz University Hannover |
| ORCID | 0000-0002-9536-9251 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 10 |
| TOTAL DE CITAÇÕES | 0 |
| TOTAL COMO AUTOR | 10 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2017 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 0 |
Mechanistic models for rhizolith formation and their implications for paleoenvironmental reconstructions
Rhizoliths, cylindrical concretions formed primarily by CaCO 3 accumulation around plant roots, serve as valuable indicators of past environmental conditions, including hydrology, redox dynamics, and carbon cycling. Despite growing interest in paleo-reconstructions, the lack of quantitative studies on formation mechanisms complicates interpretation. We present “RhizoCalc”, the first mechanistic model (deployed in HYDRUS-1D) computing rhizolith fo…
Oat/Soybean Intercropping Reshape the Soil Bacterial Community for Enhanced Nutrient Cycling
Intercropping, particularly within legume‐based systems, has been shown to enhance yields and optimize resource use efficiency. Yet, the potential contribution of intercropping on soil microbial communities and functions to soil nutrients cycling are not fully understood. We conducted the same field experiments at Youyu (Site1) and Zhangbei (Site2) in Northern China to evaluate the impact of oat/soybean intercropping on the rhizosphere soil bacte…
Microbial Community and Functions Depending on Tillage and Straw Returning Management
Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5‐year field experiment in a winter wheat‐summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no‐tillage, each with either wheat only or both wheat and maize straw retur…
A balance among irrigation and fertilization regimes to reduce greenhouse gases emissions from saline and alkaline soils
Agricultural practices of nitrogen and irrigation overuse bring lots of environmental problems, such as greenhouse gases (GHGs) emissions, soil, and water pollution. With the fast expansion of saline and alkaline agricultural soils in the Tarim River Basin, field practice must be very cautious facing water limitations and global warming. The GHGs were measured 1–2 times weekly and water and fertilizer use efficiency were evaluated under five trea…
The δ 13 C, δ 18 O and Δ 47 records in biogenic, pedogenic and geogenic carbonate types from paleosol-loess sequence and their paleoenvironmental meaning
Paleoenvironmental reconstructions are commonly based on isotopic signatures of a variety of carbonate types, including rhizoliths and land-snail shells, present in paleosol-loess sequences. However, various carbonate types are formed through distinct biotic and abiotic processes over various periods, and therefore may record diverging environmental information in the same sedimentological layer. Here, we investigate the effects of carbonate type…
Croplands conversion to cash crops in dry regions
Understanding the effects of land‐use change in drylands on nutrient use efficiencies and losses within the food production‐consumption system provides insights on nutrient management strategies and the effectiveness of land‐use policies. Weibei Dryland is considered an example to use to evaluate changes in nitrogen (N) flows through the food chain following conversion of croplands to apple orchards, using the Nutrient flows in Food Chains, Envir…
In‐situ biochar production associated with paddies
Treating soils with pyrolyzed biomass, that is biochar, is proposed as a conditioner and a carbon geoengineering measure. Rice is known as a strategic crop and rice husk is a cheap and available feedstock material for biochar in particular in Asia. We conducted a field experiment with laboratory biochar (LB) and locally produced [in‐situ biochar (IB)] applied at rates of 10 and 20 t ha −1 using a randomized block design in three replicates to exa…
Formation and paleoenvironment of rhizoliths of Shiyang River Basin, Tengeri Desert, NW China
Carbonate crusts of Paleolake Zhuyeze, Tengeri Desert, China
Carbon Sources in Fruit Carbonate of Buglossoides arvensis and Consequences for 14 C Dating
Fruit carbonate of Buglossoides arvensis (syn. Lithospermum arvense ) is a valuable dating and paleoenvironmental proxy for late Quaternary deposits and cultural layers because CaCO 3 in fruit is assumed to be accumulated from photosynthetic carbon (C). However, considering the uptake of HCO 3 – by roots from soil solution, the estimated age could be too old depending on the source of HCO 3 – allocated in fruit carbonate. Until now, no studies ha…
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Carbon Sources in Fruit Carbonate of Buglossoides arvensis and Consequences for 14 C Dating
Fruit carbonate of Buglossoides arvensis (syn. Lithospermum arvense ) is a valuable dating and paleoenvironmental proxy for late Quaternary deposits and cultural layers because CaCO 3 in fruit is assumed to be accumulated from photosynthetic carbon (C). However, considering the uptake of HCO 3 – by roots from soil solution, the estimated age could be too old depending on the source of HCO 3 – allocated in fruit carbonate. Until now, no studies ha…
Formation and paleoenvironment of rhizoliths of Shiyang River Basin, Tengeri Desert, NW China
Carbonate crusts of Paleolake Zhuyeze, Tengeri Desert, China
The δ 13 C, δ 18 O and Δ 47 records in biogenic, pedogenic and geogenic carbonate types from paleosol-loess sequence and their paleoenvironmental meaning
Paleoenvironmental reconstructions are commonly based on isotopic signatures of a variety of carbonate types, including rhizoliths and land-snail shells, present in paleosol-loess sequences. However, various carbonate types are formed through distinct biotic and abiotic processes over various periods, and therefore may record diverging environmental information in the same sedimentological layer. Here, we investigate the effects of carbonate type…
Croplands conversion to cash crops in dry regions
Understanding the effects of land‐use change in drylands on nutrient use efficiencies and losses within the food production‐consumption system provides insights on nutrient management strategies and the effectiveness of land‐use policies. Weibei Dryland is considered an example to use to evaluate changes in nitrogen (N) flows through the food chain following conversion of croplands to apple orchards, using the Nutrient flows in Food Chains, Envir…
In‐situ biochar production associated with paddies
Treating soils with pyrolyzed biomass, that is biochar, is proposed as a conditioner and a carbon geoengineering measure. Rice is known as a strategic crop and rice husk is a cheap and available feedstock material for biochar in particular in Asia. We conducted a field experiment with laboratory biochar (LB) and locally produced [in‐situ biochar (IB)] applied at rates of 10 and 20 t ha −1 using a randomized block design in three replicates to exa…
Oat/Soybean Intercropping Reshape the Soil Bacterial Community for Enhanced Nutrient Cycling
Intercropping, particularly within legume‐based systems, has been shown to enhance yields and optimize resource use efficiency. Yet, the potential contribution of intercropping on soil microbial communities and functions to soil nutrients cycling are not fully understood. We conducted the same field experiments at Youyu (Site1) and Zhangbei (Site2) in Northern China to evaluate the impact of oat/soybean intercropping on the rhizosphere soil bacte…
Microbial Community and Functions Depending on Tillage and Straw Returning Management
Tillage and straw returning are promising practices to improve soil quality, especially because of the unclear controlling effects on microbial communities and functions. A 5‐year field experiment in a winter wheat‐summer maize cropping system was implemented in the North China Plain to address this research gap. Management practices were deep tillage, rotary tillage, and no‐tillage, each with either wheat only or both wheat and maize straw retur…
A balance among irrigation and fertilization regimes to reduce greenhouse gases emissions from saline and alkaline soils
Agricultural practices of nitrogen and irrigation overuse bring lots of environmental problems, such as greenhouse gases (GHGs) emissions, soil, and water pollution. With the fast expansion of saline and alkaline agricultural soils in the Tarim River Basin, field practice must be very cautious facing water limitations and global warming. The GHGs were measured 1–2 times weekly and water and fertilizer use efficiency were evaluated under five trea…
Mechanistic models for rhizolith formation and their implications for paleoenvironmental reconstructions
Rhizoliths, cylindrical concretions formed primarily by CaCO 3 accumulation around plant roots, serve as valuable indicators of past environmental conditions, including hydrology, redox dynamics, and carbon cycling. Despite growing interest in paleo-reconstructions, the lack of quantitative studies on formation mechanisms complicates interpretation. We present “RhizoCalc”, the first mechanistic model (deployed in HYDRUS-1D) computing rhizolith fo…
Soil water (6 obras) · Agronomy (5 obras) · Biology (5 obras) · Chemistry (5 obras) · Environmental Science (5 obras) · Geology and Paleoclimatology Research (5 obras) · Ecology (4 obras) · Soil Carbon and Nitrogen Dynamics (4 obras) · Agroforestry (3 obras) · Carbonate (3 obras)