نتایج جستجو برای: wue
تعداد نتایج: 877 فیلتر نتایج به سال:
in the water-limited areas, the great challenge of the agricultural sector is more production from less water that it can be achieved by increasing water productivity. a field study was conducted to compare various cultivars of wheat to water using line source sprinkler irrigation at gorgan research station in 2005-2006. the effect of variable water supply on yield and wue of six wheat cultivar...
although the physiological and morphological differences between intercropped species caused a higher wue possibly, most researches on multiple cropping systems have focused on yields and the resources use efficiency (water, light and nutrients) has been less investigated. in addition, optimal use of nitrogen is important to attain sustainable agriculture due to its role in wue improvement. the...
PDF HTML阅读 XML下载 导出引用 引用提醒 2000-2019年中国南方竹林区水分利用效率时空特征及驱动机制 DOI: 10.5846/stxb202203120598 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 十四五重点研发计划课题"典型森林生态系统碳汇提升经营技术与增汇潜力"(2021YFD2200405);国家林业和草原局/北京市共建竹藤科学与技术重点实验室开放基金(ICBR-2020-16);城市与区域生态国家重点实验室开放基金(SKLURE2022-2-6);四川省社科重点研究基地国家公园研究中心项目(GJGY2022-ZD004) Spatiotemporal patterns and driving mechanisms of water use efficiency in bamboo forest areas southern ...
Background Leaf functional traits can influence the ability of plants to grow when facing stresses. Climate changes impose fundamental impacts on plant growth, especially at high mountains. Yet little is known about relationships between leaf and elevations in tree species above 4000 m a.s.l.Aims Our objective was investigate compare trend water use efficiency (WUE) Tibetan juniper (Juniperus t...
Abstract The Baro Akobo River, Gambella, is a representative of lower River watersheds with lost soils. Under eight landscapes, the geospatial and temporal variability water use efficiency (WUE) system WUE (sWUE) was investigated. In contrast WUE, sWUE takes runoff into account, better capturing combined effects soil management, climate change, land cover change on agricultural irrigation syste...
in order to study the effect of water deficit stress and different nitrogen levels on flower yield, yield components and water use efficiency of calendula officinalis l., an experiment was conducted as split plot based on randomized complete block design with three replications, at research field of islamic azad university, birjand branch in 2009. in this experiment, irrigation treatments (irri...
ent organs of plants (Comstock and Ehleringer, 1992), and different aged plants (Cavender-Bares and Bazzaz, Water use efficiency (WUE) is an important ecophysiological char2000). In contrast to WUE, the intrinsic water use effiacteristic of plants, especially in semiarid and arid regions. At the scale of community or ecosystem, WUE is difficult to quantify because ciency (IWUE), defined as the ...
The current climate change is forcing growth-adapted genotypes with a higher water use efficiency (WUE). However, the evaluation of WUE being made by different direct and indirect parameters such as instantaneous leaf (WUEi) isotopic discrimination carbon (δ13C) content fruits. In present work, has been evaluated in these two ways wide collection grapevine genotypes, including Tempranillo Garna...
this research was conducted at torogh agricultural research station in khorasan-e razavi province to determine the impact of irrigation cutoff at different growth stages and percentage of water use on the yield and water use efficiency (wue) of wheat cultivars using sprinkler irrigation. the study was done from 2006-2008. the experimental design was a randomized complete block design with a str...
Studying the impact of regional or seasonal drought on vegetation water-use efficiency (WUE) can identify an effective theoretical basis by which cope with future climate change. Based remote sensing data and grid data, in this study, we calculated ecosystem WUE standardized precipitation evapotranspiration index (SPEI), analyzed temporal spatial divergence WUE, explored relationship between Lo...
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