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Pores (the spaces that exist between soil particles) provide for the passage and/or retention of gasses and moisture within the soil profile.The soil's ability to retain water is strongly related to particle size; water molecules hold more tightly to the fine particles of a clay soil than to coarser particles of a sandy soil, so clays generally retain more water. [2]
Water retention curve is the relationship between the water content, θ, and the soil water potential, ψ. The soil moisture curve is characteristic for different types of soil, and is also called the soil moisture characteristic. It is used to predict the soil water storage, water supply to the plants (field capacity) and soil aggregate stability.
Soil water can refer to: Soil#Soil moisture - water in soil; Soil water (retention) - water-holding phenomenon inside soil; Blackwater (waste) ...
The drought is attributed to a lack of rain, combined with increase water consumption and storage of water in upstream dams, such as the controversial Xayaburi Dam in Laos. The drought, along with panic buying by the COVID-19 pandemic, hikes global rice price to a 6-year-high surge. [3]
According to a national urban water benchmarking system set up by the Viet Nam Water Supply and Sewerage Association (VWSA) with the support for the Asian Development Bank, non-revenue water is reported by provincial water companies as having been reduced from 39% in 2000 to around 30% in 2009 on average. However, VWSA itself questions the ...
A July 2021 study revealed the Bagmati River basin saw considerable improvements in water quality during the COVID-19 pandemic. Reduced human activity caused a decrease in biological oxygen demand, an important indicator of bacteria levels in water, by 1.5 times the level before lockdowns were implemented. [97]
A police car in Hanoi with COVID-19 public health messaging. The Vietnamese government using social media platforms to keep the public informed of COVID-19 news and instructions. Thong Tin Chinh Phu (Governmental Information), the government's official Facebook page, provides nearly hourly updates on the country's pandemic situation. Zalo, a ...
Infection rates dropped and stabilised throughout 2022 and 2023, leading to the end of COVID-19's classification as a severe transmissible disease in June 2023. [ 22 ] Although the pandemic has heavily disrupted the country's economy , [ 23 ] Vietnam's GDP growth rate has remained one of the highest in Asia-Pacific , at 2.91% in 2020.