scholarly journals Quantitative analyzes of virtual water net exports under the impacts of natural changes and human activities in the last 20 years in Shandong Province, China

2021 ◽  
Author(s):  
Xiuxiu Sun ◽  
Weiping Wang ◽  
Shisong Qu ◽  
Wenliang Li ◽  
Weidong Zhao ◽  
...  
Keyword(s):  
Water Management ◽  
Human Activities ◽  
Yellow River ◽  
Virtual Water ◽  
Water Diversion ◽  
Management Policy ◽  
Negative Effects ◽  
Virtual Water Trade ◽  
Beneficial Effects ◽  
Net Exports

Abstract Virtual water trade in a region is affected by both nature and humans. To study the contributions of human activities to virtual water trade quantitatively, an innovative method of quantitative comparison and analysis is put forward. At first, the climates are adjusted into a unified standard. Then the impacts of increment and reduction of foreign water are studied. Additionally, the impacts of water management policy are studied according to the comparable water quotas. Results show that with the development of economy, an N-shaped trend and inverted U-shaped trend exist with regard to the net exports of agricultural and industrial virtual water, respectively. The net imports of virtual water have beneficial effects to the water environments of water deficient areas, while the net exports have negative effects. In 1997, the net exports of agricultural and industrial virtual water reduced by 20.13% and 49.67% respectively due to the cut-off of Yellow River channel compared with that under the average Yellow River water diversion. In 2017, they increased by 1.32% and 41.99% respectively because of the South-to-North Water Transfer project and reduced by 10.01% and 20.39% respectively under the effects of the most stringent water management policy.

scholarly journals Virtual Water Trade in the Yellow River Economic Belt: A Multi-Regional Input-Output Model

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 748
Author(s):  
Ming Li ◽  
Qingsong Tian ◽  
Yan Yu ◽  
Yueyan Xu ◽  
Chongguang Li
Keyword(s):  
Water Resources ◽  
Water Use ◽  
Inner Mongolia ◽  
Yellow River ◽  
Cumulative Risk ◽  
Virtual Water ◽  
Hot Water ◽  
The Yellow River ◽  
Input Output ◽  
Virtual Water Trade

The sustainable and efficient use of water resources has gained wide social concern, and the key point is to investigate the virtual water trade of the water-scarcity region and optimize water resources allocation. In this paper, we apply a multi-regional input-output model to analyze patterns and the spillover risks of the interprovincial virtual water trade in the Yellow River Economic Belt, China. The results show that: (1) The agriculture and supply sector as well as electricity and hot water production own the largest total water use coefficient, being high-risk water use sectors in the Yellow River Economic Belt. These two sectors also play a major role in the inflow and outflow of virtual water; (2) The overall situation of the Yellow River Economic Belt is virtual water inflow, but the pattern of virtual water trade between eastern and western provinces is quite different. Shandong, Henan, Shaanxi, and Inner Mongolia belong to the virtual water net inflow area, while the virtual water net outflow regions are concentrated in Shanxi, Gansu, Xinjiang, Ningxia, and Qinghai; (3) Due to higher water resource stress, Shandong and Shanxi suffer a higher cumulative risk through virtual water trade. Also, Shandong, Henan, and Inner Mongolia have a higher spillover risk to other provinces in the Yellow River Economic Belt.

scholarly journals Assessing international virtual water trade of crops in Yellow River Basin, China

2019 ◽  
Vol 332 (2) ◽  
pp. 022001
Author(s):  
Rong Cai ◽  
Mengting Hu ◽  
Huiting Guo ◽  
Sinan Zhang ◽  
Xue Bai ◽  
...  
Keyword(s):  
River Basin ◽  
Yellow River ◽  
Virtual Water ◽  
Yellow River Basin ◽  
Virtual Water Trade

scholarly journals Oil palm and rubber expansion facilitates earthworm invasion in Indonesia

2021 ◽  
Author(s):  
Anton Potapov ◽  
Ina Schaefer ◽  
Malte Jochum ◽  
Rahayu Widyastuti ◽  
Nico Eisenhauer ◽  
...  
Keyword(s):  
Oil Palm ◽  
Human Activities ◽  
Negative Effects ◽  
Soil Biodiversity ◽  
Deforestation Rate ◽  
Beneficial Effects ◽  
Earthworm Invasion ◽  
Invasive Earthworms ◽  
Native Soil ◽  
Density And Biomass

AbstractDeforestation, plantation expansion and other human activities in tropical ecosystems are often associated with biological invasions. These processes have been studied for above-ground organisms, but associated changes below the ground have received little attention. We surveyed rainforest and plantation systems in Jambi province, Sumatra, Indonesia, to investigate effects of land-use change on the diversity and abundance of earthworms—a major group of soil-ecosystem engineers that often is associated with human activities. Density and biomass of earthworms increased 4—30-fold in oil palm and rubber monoculture plantations compared to rainforest. Despite much higher abundance, earthworm communities in plantations were less diverse and dominated by the peregrine morphospecies Pontoscolex corethrurus, often recorded as invasive. Considering the high deforestation rate in Indonesia, invasive earthworms are expected to dominate soil communities across the region in the near future, in lieu of native soil biodiversity. Ecologically-friendly management approaches, increasing structural habitat complexity and plant diversity, may foster beneficial effects of invasive earthworms on plant growth while mitigating negative effects on below-ground biodiversity and the functioning of the native soil animal community.

Improving water management in date palms using economic value of water footprint and virtual water trade concepts in Iran

2020 ◽  
Vol 229 ◽  
pp. 105941 ◽  
Author(s):  
Ommolbanin Bazrafshan ◽  
Hossein Zamani ◽  
Hadi Ramezani Etedali ◽  
Zahra Gerkaninezhad Moshizi ◽  
Mansoureh Shamili ◽  
...  
Keyword(s):  
Water Management ◽  
Water Footprint ◽  
Economic Value ◽  
Virtual Water ◽  
Virtual Water Trade ◽  
Date Palms ◽  
Value Of Water ◽  
Economic Value Of Water

scholarly journals Virtual Water Flows Embodied in International and Interprovincial Trade of Yellow River Basin: A Multiregional Input-Output Analysis

2020 ◽  
Vol 12 (3) ◽  
pp. 1251 ◽  
Author(s):  
Guiliang Tian ◽  
Xiaosheng Han ◽  
Chen Zhang ◽  
Jiaojiao Li ◽  
Jining Liu
Keyword(s):  
International Trade ◽  
River Basin ◽  
Agricultural Sector ◽  
Yellow River ◽  
Virtual Water ◽  
Yellow River Basin ◽  
Industrial Sector ◽  
Input Output ◽  
Output Analysis ◽  
Virtual Water Trade

With the imminent need of regional environmental protection and sustainable economic development, the concept of virtual water is widely used to solve the problem of regional water shortage. In this paper, nine provinces, namely Qinghai, Sichuan, Gansu, Ningxia, Inner Mongolia, Shaanxi, Shanxi, Henan, and Shandong in the Yellow River Basin (YRB), are taken as the research objects. Through the analysis of input-output tables of 30 provinces in China in 2012, the characteristics of virtual water trade in this region are estimated by using a multi-regional input-output (MRIO) model. The results show that: (1) The YRB had a net inflow of 17.387 billion m³ of virtual water in 2012. In interprovincial trade, other provinces outside the basin export 21.721 billion m³ of virtual water into the basin. In international trade, the basin exports 4334 million m³ of virtual water to the international market. (2) There are different virtual flow paths in the basin. Shanxi net inputs virtual water by interprovincial trade and international trade, while Gansu and Ningxia net output virtual water by interprovincial trade and international trade. The other six provinces all net output virtual water through international trade, and obtain the net input of virtual water from other provinces outside the basin. (3) From the industrial structure of the provinces in the basin, the provinces with a relatively developed economy, such as Shandong and Shanxi, mostly import virtual water in the agricultural sector, while relatively developing provinces, such as Gansu and Ningxia, mostly import virtual water in the industrial sector. In order to sustain the overall high-quality development of the YRB, we propose the virtual water trade method to quantify the net flow of virtual water in each province and suggest the compensation responsibility of the virtual water net inflow area, and the compensation need of the virtual water net outflow area, in order to achieve efficient water resources utilization.

Incentives in Water Management Reform: Case Study in the Yellow River Basin

Water Nepal ◽  
2004 ◽  
Vol 11 (2) ◽  
Author(s):  
Jinxia Wang ◽  
Zhigang Xu ◽  
Jikun Huang ◽  
Scott Rozelle
Keyword(s):  
Water Management ◽  
River Basin ◽  
Yellow River ◽  
Yellow River Basin ◽  
The Yellow River ◽  
Management Reform ◽  
The Yellow River Basin

Systematic approaches in water management: Aquatic outlook and decision support systems combining monitoring, research, policy analysis and information technology

1996 ◽  
Vol 34 (12) ◽  
pp. 9-16 ◽  
Author(s):  
J. de Jong ◽  
J. T. van Buuren ◽  
J. P. A. Luiten
Keyword(s):  
Water Management ◽  
Policy Analysis ◽  
Research Policy ◽  
Human Life ◽  
Management Policy ◽  
Ecological Aspects ◽  
Management Plans ◽  
Water Management Plans ◽  
Life On Earth

Sustained developments is the target of almost every modern water management policy. Sustainability is focused on human life and on the ecological quality of our environment. Both aspects are essential for life on earth. Within a river catchment area this means that well balanced relations have to be laid between human activities and ecological aspects in the involved areas. Policy analysis is especially looking for the most efficient way to analyse and to overcome bottlenecks. In The Netherlands project “The Aquatic Outlook” all these elements are worked out in a nationwide scale, providing the scientific base and policy analysis from which future water management plans can be derived.

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