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Higher leaf nitrogen content is linked to tighter stomatal regulation of transpiration and more efficient water use across dryland trees
arid ecosystems ci/ca ratio leafδ13C leaf δ18O plant isotopic composition
2023/11/28
The least-cost economic theory of photosynthesis shows that water and nitrogen are mutually substitutable resources to achieve a given carbon gain. However, vegetation in the Sahel has to cope with th...
中国地质大学科学技术发展院李嘉光* 等，资源学院. Journal of Hydrology（2020）, Digital Elevation Models for topographic characterisation and flood flow modelling along low-gradient, terminal dryland rivers: A comparison of spaceborne datasets for the Río Colorado, Bolivia（图）
精确表征；极低；缓河流；末端；地形；模拟河道；洪水；漫溢
2021/10/15
近日，国际知名期刊Journal of Hydrology在线刊发了中国地质大学资源学院李嘉光副教授团队在陆相湖盆边缘河流末端沉积体系研究的最新成果——Digital Elevation Models for topographic characterisation and flood flow modelling along low-gradient, terminal dryland rive...
THE RESEARCH ON DRYLAND CROP CLASSIFICATION BASED ON THE FUSION OF SENTINEL-1A SAR AND OPTICAL IMAGES
Crop Classification Fusion Sentinel-1A Synthetic Aperture Radar Object-Oriented Technique
2018/5/15
In recent years, the quick upgrading and improvement of SAR sensors provide beneficial complements for the traditional optical remote sensing in the aspects of theory, technology and data. In this pap...
Soil management practice effect on water balance of a dryland soil during fallow period on the Loess Plateau of China
deep percolation fallow efficiency modelling
2016/2/22
To understand the mechanisms affecting water balance partitioning during fallow on drylands could improve the fallow management practices in arable land ecosystems. A three-year field experiment was c...
Turkish Experience on Dryland Agronomy:Lessons from the Past and the Recent Experiments
Dry farming rotational cropping fallow systems manures zero-tillage Turkey
2009/9/29
Turkish dryland agriculture system had good productivity in the sixties with introduction
of high yielding cultivars and increase in fertilizer use. However, the sustainability of this
system is que...
Effects of Crop Residue and Nitrogen Rates on Yield and Yield Components of Two Dryland Wheat (Triticum aestivum L.) Cultivars
Crop residue Dryland wheat Grain yield Nitrogen rates
2010/3/4
In most southern parts of Iran, wheat (Triticum aestivum L.) residues have been traditionally burned or removed; that is often criticized for soil organic and nutrient losses, reducing soil microbial ...
Genetic Opportunities to Improve Cereal Root Systems for Dryland Agriculture
Breeding Root growth Root health Root physiology Water uptake Wheat
2009/7/21
Understanding the major limitations to root growth is very important if we are to maximize water and nutrient use and increase yields. Limitations may be insufficient rooting depth, root diseases, nut...
Major faults and the development of dryland salinity in the western wheatbelt of Western Australia
dryland salinity Western Australia western wheatbelt
2009/5/27
Dryland salinity poses a major threat to agricultural production in the wheatbelt of Western Australia and much time and effort is expended on understanding the mechanisms which cause it and on develo...
Hydrological processes and water resources management in a dryland environment IV：Long-term groundwater level fluctuations due to variation in rainfall
Long-term groundwater level fluctuations rainfall dryland environment
2009/5/26
To evaluate the effects of variations in rainfall on groundwater, long-term rainfall records were used to simulate groundwater levels over the period 1953-96 at an experimental catchment in south-east...
Hydrological processes and water resources management in a dryland environment III：Groundwater recharge and recession in a shallow weathered aquifer
Hydrological processes Groundwater recharge shallow weathered aquifer dryland environment
2009/5/26
In crystalline basement regions of Africa, shallow weathered aquifers provide vital water resources for rural communities. To quantify evidence of the behaviour of these shallow aquifers, groundwater...
Hydrological processes and water resources management in a dryland environment II：Surface redistribution of rainfall within fields
Surface redistribution rainfall within fields Soil water movement
2009/5/26
Soil water movement was studied within fields on two different soil types, a red clay soil and a duplex soil of sand over clay, at the Romwe Catchment in southern Zimbabwe. Each study site comprised t...
Hydrological processes and water resources management in a dryland environment I：An introduction to the Romwe Catchment Study in Southern Zimbabwe
Hydrological processes water resources management Southern Zimbabwe
2009/5/26
In Zimbabwe during the 1980s and early 1990s, a sequence of severe droughts caused widespread food shortages and great hardship to rural communities. The droughts exacerbated the problems of environme...
A model for simulating the deposition of water-lain sediments in dryland environments
avulsion channel deposition drylands erosion gravel armouring modelling sheet-flood transport capacity
2009/3/3
Triassic Sandstone aquifers of the UK for the study of solute movement. DSESS employs discrete storm-flood automata, released across a cellular landscape, to model sediment transport: erosion, migrati...
Effect of Phosphorus Fertilizers and Application Methods on the Yield of Wheat Grown Under Dryland Conditions
Phosphorus Fertilizers Application Methods Yield Wheat Grown Dryland Conditions
2009/1/15
This study was conducted to investigate the efficiency of diammonium phosphate (DAP) and triple superphosphate (TSP) as phosphorus (P) sources and the effect of fertilizer application methods on the ...
Role of Wheat in Diversified Cropping Systems in Dryland Agriculture of Central Asia
Dryland crop rotation crop diversification summer fallow
2009/1/12
Wheat is major crop in dryland agriculture of Central Asia. In most cases both spring wheat and winter wheat are grown in rotation with summer fallow. Studies were conducted in order to identify alter...