[PDF] Analysis of Water-Sand Changes and Influencing …
DOI: 10.15244/pjoes/174482 Corpus ID: 266796624; Analysis of Water-Sand Changes and Influencing Factors in the Ganjiang River Basin from 1958-2019 @article{Zheng2024AnalysisOW, title={Analysis of Water-Sand Changes and Influencing Factors in the Ganjiang River Basin from 1958-2019}, author={Siyu Zheng and Jiawei Chen and …
Analysis and prediction of carbon emissions from food consumption …
Food consumption has resulted in great carbon emissions in recent years. China has been facing the new mitigation challenge of carbon emissions with its emerging middle-income groups, especially in urban areas. This paper analyzes and predicts carbon emissions from food consumption (CEFC) of middle-income groups in the Yangtze River Economic Belt …
A Chinese soil conservation dataset preventing soil water …
Substituted observations refer to observed sediment runoff data for hydrologic stations in eight major river basins in China from 2010 to 2019 (Fig. 1i) 66, which were compared with modelled soil ...
China builds with manufactured sand, easing worry about
About 80 per cent of the sand used in China's construction industry today is manufactured, marking a turning point in engineering,,nd offering hope to solve a major crisis for the world, according ...
Sand, gravel, and UN Sustainable Development Goals: Conflicts
In combination with a growing global population, unprecedented human pressures are confronting the Earth's system. 11 Sand, gravel, and crushed stone play a significant role in the global economy, with concrete being a central pillar of urban development. 12 For cement alone, a proxy for aggregate usage, China's demand has increased exponentially by 438% …
Substantial increase in China's manufactured sand supply …
Here we present a material flow analysis of sand from 1995 to 2020 that shows China's overall sand supply surged by approximately 400% over the study period, yet the proportion of natural sand...
Material efficiency to tackle the sand crisis
consumption of sand-containing materials ... is currently sourced from river beds3, which account for <1% of the world's ... (2019). 3. Torres, A. et al. Science 357, 970–971 (2017). 4. Allen ...
Impact assessment of river sand resource shortage …
To cope with the excessive consumption of river sand, Xiao et al. Low-carbon Materials and Green Construction Page 3 of 13 China began to implement the Yangtze River Sand Min- ing Management ... Fig. 1 Data of construction area and cement …
China's shift to manufactured sand reduces environmental …
In 2020, the proportion of natural sand compared with total sand supply stood at only around 21 per cent – down from around 80 per cent in 1995. It represents a landmark in the history of human civil engineering, especially considering that China's sand consumption is an outstandingly high percentage of global use.
Challenges to saving China's freshwater biodiversity: Fishery
China has over 1320 freshwater fish species, 877 of which are endemic. In recent decades, over-exploitation and landscape pressures have threatened them and led to a severe aquatic biodiversity crisis. In response, large-scale fishing bans have been promulgated to protect freshwater biodiversity in major Chinese rivers since the early 1980s. Here, we present the …
Substantial increase in China s manufactured sand …
Here we present a material flow analysis of sand from 1995 to 2020 that shows China's overall sand supply surged by approximately 400% over the study period, yet the proportion of natural sand...
Time is running out for sand
Approximately 85% existing buildings consume natural sand. Every year over 10.5 billion tons of river sand are used in concrete and mortar all over the world [3, 4]. After decades of rapid development of the construction industry, the total amount of construction industry in China has gradually stabilized.
Why the world is running out of sand
China alone has likely used more sand this decade than the United States did in the entire 20th Century. There is so much demand for certain types of construction sand that Dubai, which sits on ...
Forecasting electricity consumption in China's Pearl River …
To reflect the trend of electricity consumption (EC) in China's Pearl River Delta (PRD) under a balanced environment and economy, this paper proposes an EC forecasting framework from the perspective of optimal economic growth. ... Liu et al. [23] estimated the housing vacancy rate in the PRD from 2013 to 2019 using NPP-VIIRS data, and achieved ...
Driven to Extraction: Can Sand Mining be Sustainable?
For example, in 2000, Chinese authorities banned sand mining in the Yangtze River after extraction had caused the collapse of bridges and riverbanks. 12 However, this led to the massive expansion of sand mining in Poyang lake, which is 300 miles up the Yangtze river from Shanghai. Poyang is China's largest freshwater lake and an important ...
The environmental impacts of river sand mining
Even though it would be in nature's best interest, a worldwide ban on sand mining is not an option as the demand for sand is enormous and ever-growing (Gallagher and Peduzzi, 2019).Between 1900 and 2010 the global demand for sand increased 23-fold (Torres et al., 2017) and it is expected to grow to a colossal 82 billion tons by 2060 (Fritts, 2019).
From Sandstorm and Smog to Sustainability and Justice: China's …
In 2019, coal consumption accounted for 57.7 percent of total energy consumption, but this was already a decrease of 10.8 percentage points from 2012; the consumption of so-called clean energy (natural gas, hydropower, nuclear power, and wind power) accounted for 23.4 percent of total energy consumption, an increase of 8.9 …
PAHs and PAEs in the surface sediments from Nenjiang River …
The Songhua River, one of the seven major rivers in China, located in northeast China. The water resources in the basin are not only the drinking water source for many residents in Heilongjiang, Jilin and Inner Mongolia Autonomous regions, but also the irrigation water source for China's largest grain production base (Sun et al., 2011, Yang et al., 2020).
The Unsustainable Use of Sand: Reporting on a …
Sand consumption has increased worldwide, ... . Impact of sand minig on the carbon sequestration and nitrogen removal ability of soil in the riparian area of Lijiang River, China. Environ. Pollut. 2020, 261, 114220. ...
Stocks and flows of sand, gravel, and crushed stone in China …
They could be obtained not only from the river sand but also from a variety of silicon-containing ores, such as vein quartz, quartz gravel, etc. ... (Ministry of Industry and Information Technology of China, 2019), the annual consumption of aggregates in the country has reached nearly 20 billion tons in recent years, occupying over half of ...
Assessing the Impacts of Climate and Land Use Change on …
The Three-River Headstreams Region (TRHR) serves as the cradle of China's three major rivers—the Yangtze, Yellow, and Lancang—rendering its water conservation (WC) capacity quintessentially significant for Asian water resource security. This study integrated the InVEST model and random forest model to holistically elucidate the spatiotemporal …
The Unsustainable Use of Sand: Reporting on a …
In 2018, China and India accounted for more than 60% of global cement production, with China producing more than all other countries combined [22]. Interestingly, small countries like Singapore (which largely uses sand for …
Understanding Future Water-Carbon-Land Coupled Systems …
The ESs of a river basin mainly include water yield (WY), carbon storage (CS), and soil conservation (SC) (Gao et al., 2019; Souliotis & Voulvoulis, 2021).These services are closely related to human survival, life, and happiness (Gong et al., 2019).Government officials and decision-makers typically aim to enhance one or multiple ecosystem services through the …
Stocks and flows of sand, gravel, and crushed stone in China …
According to the China Aggregates Association (Ministry of Industry and Information Technology of China, 2019), the annual consumption of aggregates in the country has reached nearly 20 billion tons in recent years, occupying over half of China's material footprint (Jiang et al., 2019).
China's Natural Sand Market Report 2024
The Chinese natural sand market totaled $3.1B in 2023, remaining relatively unchanged against the previous year. The market value increased at an average annual rate of +3.4% from 2012 to 2023; however, the trend pattern indicated some noticeable fluctuations being recorded in certain years. As a result, consumption attained the peak level of $3.1B; …
Impact of anthropogenic activities on morphological and deposition …
The evolution of the Pearl River Estuary (PRE), China in recent decades has been dominated by human activities. Historical admiralty charts and remote sensing images indicated that from 1936 to ...
The rapid prosperity of China's Pearl River Delta from the …
Second, the social–ecological coupling trajectory of China's Pearl River Delta (PRD) is quantitatively identified in the period between 1980s and 2019, and the impacts of its rapid prosperity ...
Streamflow and sediment load changes from China's large …
In China, the Yangtze River is a typical case with decreased sediment load and stable streamflow (Guo et al., 2019). Due to the intensified construction of large hydropower dams, the sediment reaching its delta continued to decrease (Dai and Lu, 2014), and the same changes also were observed in the Pearl River (Liu et al., 2014; Wu et al., 2020).
Managing nitrogen to restore water quality in China
China now accounts for around 32% of the world's consumption of nitrogen ... This input can be conceptualised as China's share of the total planetary safe nitrogen boundary. ... (2019). https ...
Ecological effect of the riparian ecosystem in the lower reaches of the
The riparian vegetation in the lower reaches of the Tarim River is an irreplaceable natural resource for its ecosystem, and also a guarantee for the transportation safety in this area. Here, we analyzed different plant influences on soil erosion and evaluate the main ecosystem service functions served by the riparian vegetation to study area. Results showed …