In the class of water demand associated with weather, households are less sensitive to policy changes but exhibit increased sensitivity to precipitation both when the utility is actively promoting conservation (during severe drought) and in post-drought years. Implications for long-term effectiveness of...
In view of river functions and the Minimum Water Demand for River Ecosystem (MWDRE), the water resources in the Lower Yellow River is further divided into three portions, i.e. water available for ecosystem (WE), water exploitable for socioeconomic purposes (WS) and excess flood water (WF)...
is significantvariation inpresent water use (Figure 8.5); with some countries where per capita consumption is increasing, although most are having some success in maintaining or further reducingdemand. wrdmap.org wrdmap.org 即使是在欧盟气候温和、经济相对均衡的地区,目前用水量差异仍然很大(图 8.5); ...
Vertical sap flow is the main water transfer in trees, most of which supplies transpiration demand. Radial water flow is also important, where water transfer occurs between different storage tissues (e.g. phloem and xylem) (James et al., 2003; Pfautsch et al., 2015; Zweifel et al., ...
In recent years, along with the economical fast development, the urbanized advancement sped up, population sharp growth, adding water demand also sharp growth, but the water resources supply and demand also even more highlighted not balanced to the social development restriction.[translate] ...
In India almost 80 percent of the rural population depends on untreated groundwater for potable water supplies1. Contamination of drinking water may occur by percolation of toxics through the soil to ground water2. Due to continuous population growth demand for fresh water increases rapidly. The ...
With the development of the local economy, society, and population, the contradiction between the intensification of water demand in the basin and the uneven distribution of precipitation during the year has become more and more acute, and the intra-year regulation and storage effect of reservoir ...
Variation in oxygen demand (OD) with depth, of both the solids and porewaters, in a contaminated urban sediment was measured in order to predict the response of the sediment water system to future improvements in water quality and partial dredging. The OD (24?h) of the solid was relatively...
bicarbonate, calcium, hardness, free CO2, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), nitrate (NO3–N), nitrite (NO2–N), ammonia (NH3–N) and phosphate (PO4–P) was carried out using the standard methods for water and wastewater (APHA, 2005)...
Lutaizi and Wujiadu stations presented decreasing trend in spring and autumn.On the whole,the runoff in the dry season reduced that might aggravate the contradiction between supply and demand of water resources.(3)Furthermore,annual runoff series had significant changes which were including two wet...