Dynamics of water usage in Haloxylon ammodendron in the southern edge of the Gurbantünggüt Desert

2014 ◽  
Vol 38 (11) ◽  
pp. 1214-1225 ◽  
Author(s):  
DAI Yue ◽  
◽  
ZHENG Xin-Jun ◽  
TANG Li-Song ◽  
and LI Yan
2016 ◽  
Vol 2016 (12) ◽  
pp. 5788-5815
Author(s):  
Eliza Jane Whitman ◽  
Flor Burrola ◽  
Edward Arrington ◽  
Ray Soloman ◽  
Lenise Marrero
Keyword(s):  

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Trey Dronyk-Trosper ◽  
Brandli Stitzel

AbstractAs water rights and water usage become an ever more important part of municipalities’ and states’ way of life, it becomes important to understand what policies can be effective for encouraging conservation of water. One method that has been employed at various times and throughout numerous communities is to limit outdoor watering days. We use a dataset with over 3 million property-month observations during the 2007–2015 period in Norman, Oklahoma, to identify whether the periodic implementation of mandatory water restrictions reduces water usage. Our data allow us to exploit variance in the timing of these water restriction programs. Our findings indicate that this policy reduces water consumption by 0.7 % of total water consumption. Additionally, we use home assessment prices to identify heterogeneity in this response, finding that high priced homes are more responsive to water use restrictions.


Author(s):  
Tamaryn Menneer ◽  
Zening Qi ◽  
Timothy Taylor ◽  
Cheryl Paterson ◽  
Gengyang Tu ◽  
...  

In response to the COVID-19 outbreak, the UK Government provided public health advice to stay at home from 16 March 2020, followed by instruction to stay at home (full lockdown) from 24 March 2020. We use data with high temporal resolution from utility sensors installed in 280 homes across social housing in Cornwall, UK, to test for changes in domestic electricity, gas and water usage in response to government guidance. Gas usage increased by 20% following advice to stay at home, the week before full lockdown, although no difference was seen during full lockdown itself. During full lockdown, morning electricity usage shifted to later in the day, decreasing at 6 a.m. and increasing at midday. These changes in energy were echoed in water usage, with a 17% increase and a one-hour delay in peak morning usage. Changes were consistent with people getting up later, spending more time at home and washing more during full lockdown. Evidence for these changes was also observed in later lockdowns, but not between lockdowns. Our findings suggest more compliance with an enforced stay-at-home message than with advice. We discuss implications for socioeconomically disadvantaged households given the indication of inability to achieve increased energy needs during the pandemic.


Author(s):  
Ke Guo ◽  
Shaoyan Wang ◽  
Renfeng Song ◽  
Zhiqiang Zhang

AbstractLeaching titaniferous magnetite concentrate with alkali solution of high concentration under high temperature and high pressure was utilized to improve the grade of iron in iron concentrate and the grade of TiO2 in titanium tailings. The titaniferous magnetite concentrate in use contained 12.67% TiO2 and 54.01% Fe. The thermodynamics of the possible reactions and the kinetics of leaching process were analyzed. It was found that decomposing FeTiO3 with NaOH aqueous solution could be carried out spontaneously and the reaction rate was mainly controlled by internal diffusion. The effects of water usage, alkali concentration, reaction time, and temperature on the leaching procedure were inspected, and the products were characterized by X-ray diffraction, scanning electron microscope, and energy dispersive spectroscopy, respectively. After NaOH leaching and magnetic separation, the concentrate, with Fe purity of 65.98% and Fe recovery of 82.46%, and the tailings, with TiO2 purity of 32.09% and TiO2 recovery of 80.79%, were obtained, respectively.


Water Policy ◽  
2013 ◽  
Vol 16 (2) ◽  
pp. 205-221 ◽  
Author(s):  
Desirée C. Rabelo ◽  
Josep Espluga ◽  
Edmilson C. Teixeira ◽  
Quim Brugué

Despite the growing literature and empirical research on citizenship participation in the elaboration of water resources plans (WRP), little attention has been paid to the Terms of Reference (ToR) for such plans. Such a technical contract sets the targets, stages and activities to be met as part of the development of the WRP. Thus, any analysis of the participation impacts and results must follow the previously agreed terms but the ToR development may not, in itself, be participative. Examined herein are the ToR for the WRP of the Doce River Basin (Brazil) and the Catalonia Fluvial District (Spain), with focus on (i) proposals for democratising debates and decisions and (ii) the very process of ToR development. Historical and institutional aspects of both regions were analysed, which comprised participation mechanisms established by the corresponding national policies and recommended by the relevant international bodies. Despite the distinct features of the two regions, they both share the challenge of implementing a new governance model involving various stakeholders with the common goal of defining the water usage rights in a sustainable way. A comparative analysis of the two approaches revealed different approaches to tackle this challenge and highlighted advantages and disadvantages of each model.


Author(s):  
Wu Xiao ◽  
Li-Juan Li ◽  
Hong-Guang Dong ◽  
Xiao Yang ◽  
Ping-Jing Yao

2013 ◽  
Vol 726-731 ◽  
pp. 3559-3563
Author(s):  
Wen Hui Lv ◽  
Zhi Gang Gao

DEA was used to estimate the relative efficiency of industrial water in Xinjiang. Using data from 2005 to 2010 for fifteen prefectures in Xinjiang, this research selected productive water usage, employed persons, land area and fixed asset investment as the inputs, and chose gross regional product as the output. The scale redundancy ratio and technical redundancy ratio were also calculated. On the basis, the water utilization relative efficiency was calculated for every prefecture and the spatial-temporal variation of regional industrial water distribution were discussed. The spatial analyses show that the relative efficiency of industrial water utilization is distinctly different among the fifteen prefectures. Agriculture-oriented areas have relatively low water use efficiency, mainly due to the large proportion of agricultural water and seriously wasted water. Every prefecture should adjust the industrial structure and strengthen the agricultural water's conservation according to local condition.


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