scholarly journals Assessment of Blue and Green Virtual Water Trade: A Case Study of India

2021 ◽  
Vol 3 (6) ◽  
pp. 15-22
Author(s):  
Shiv Narayan Nishad ◽  
Naresh Kumar

Declining water resources and increasing demand of water for agricultural, industrial, and domestic sector and potential climate change has posed a major challenge to maintain water sustainability of a nation. There is a need to adopt long-term perspective for assessment and policy design for sustainability of primary resources like water. It is also argued that virtual water trade has raised issues of water sustainability as even small but continuous net virtual water trade may influence the water sustainability through irreversible losses. With the constraints for water sustainability, virtual water trade has received much attention in the recent years. While the impact of virtual water trade on water sustainability of virtual water exporter country is less explored and assessed. India is a major water exporting country resulted tremendous pressure on water resources that has serious threat to food security and the negative impact on development of economy and other sectors.

Author(s):  
Shiv Narayan Nishad ◽  
Naresh Kumar

Abstract Limited and declining water resources, increasing demand of water resources from different sectors has posed a major challenge for maintaining water sustainability and thus overall sustainability for a populous and water scarce country like India. Over extraction and changing climate have put additional pressure to maintain water sustainability. Therefore, there is a need of proper planning of utilization and management of water resource. Recently, virtual water trade has received much attention and become important tool for balancing the water budget. On the other hand, virtual water trade may also adversely effects on water balance of exporter's country as well as economy. Analysis of virtual water trade with its implications on water resources are missing, hence, there is a need of such analysis that will help in management of water resources. In this study an attempt is made to present a quantitative analysis of virtual water trade and its implications on water sustainability. For this study rice crop is considered only due to its characteristics as rice is major water consumer crop and water exporter crop from India.


2004 ◽  
Vol 49 (7) ◽  
pp. 25-32 ◽  
Author(s):  
J. Ramirez-Vallejo ◽  
P. Rogers

The linkages between agricultural trade and water resources need to be identified and analyzed to better understand the potential impacts that a full liberalization, or lack thereof, will have on water resources. This paper examines trade of virtual water embodied in agricultural products for most countries of the world. The main purpose of the paper, however, is to examine the impact of trade liberalization on virtual-water trade in the future. Based on a simulation of global agricultural trade, a scenario of full liberalization of agriculture was used to assess the net effect of virtual water flows from the relocation of meat and cereals’ trade. The paper also identifies the main reasons behind the changes in the magnitude and direction of the net virtual water trade over time, and shows that virtual water trade flows are independent of water resource endowments, contrary to what the Heckscher-Ohlin Theorem states. Finally, based on a formal model, some input demand functions at the country level are estimated. The estimates of the income and agricultural support elasticities of demand for import of virtual water have the expected sign, and are statistically significant. Variables found to have some explanatory power of the variance of virtual water imports are average income; population; agriculture as value added; irrigated area, and exports of goods and services.


Work ◽  
2021 ◽  
pp. 1-11
Author(s):  
Yan Xu ◽  
Wantian Cui

BACKGROUND: China’s atmospheric PM2.5 pollution is serious, and PM2.5 exerts a negative impact on the human respiratory system, cardiovascular, and mental health, and even more serious health risk for the elderly with weak immunity. OBJECTIVE: This work aims to analyse the impacts of PM2.5 microenvironment exposure on the health of the elderly and provide corresponding countermeasures. METHODS: The survey subjects are 118 retired elderly people in the community. PM2.5 exposure concentrations are monitored in summer (June 10 ∼ July 10, 2019) and winter (November 25 ∼ December 25, 2019). RESULTS: The exposure concentration in winter is higher than that in summer, with statistical difference (P <  0.05). Under the impact of PM2.5 microenvironment exposure, smoking in the elderly can increase the concentration of PM2.5, and long-term exposure to PM2.5 in the elderly can cause mental health problems. CONCLUSION: Long-term exposure of the elderly to the PM2.5 microenvironment leads to physical diseases and even psychological problems, which requires attention.


Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 748
Author(s):  
Ming Li ◽  
Qingsong Tian ◽  
Yan Yu ◽  
Yueyan Xu ◽  
Chongguang Li

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.


Author(s):  
Jie Deng ◽  
Cai Li ◽  
Ling Wang ◽  
Shuxia Yu ◽  
Xu Zhang ◽  
...  

2016 ◽  
Vol 20 (7) ◽  
pp. 2877-2898 ◽  
Author(s):  
Hannes Müller Schmied ◽  
Linda Adam ◽  
Stephanie Eisner ◽  
Gabriel Fink ◽  
Martina Flörke ◽  
...  

Abstract. When assessing global water resources with hydrological models, it is essential to know about methodological uncertainties. The values of simulated water balance components may vary due to different spatial and temporal aggregations, reference periods, and applied climate forcings, as well as due to the consideration of human water use, or the lack thereof. We analyzed these variations over the period 1901–2010 by forcing the global hydrological model WaterGAP 2.2 (ISIMIP2a) with five state-of-the-art climate data sets, including a homogenized version of the concatenated WFD/WFDEI data set. Absolute values and temporal variations of global water balance components are strongly affected by the uncertainty in the climate forcing, and no temporal trends of the global water balance components are detected for the four homogeneous climate forcings considered (except for human water abstractions). The calibration of WaterGAP against observed long-term average river discharge Q significantly reduces the impact of climate forcing uncertainty on estimated Q and renewable water resources. For the homogeneous forcings, Q of the calibrated and non-calibrated regions of the globe varies by 1.6 and 18.5 %, respectively, for 1971–2000. On the continental scale, most differences for long-term average precipitation P and Q estimates occur in Africa and, due to snow undercatch of rain gauges, also in the data-rich continents Europe and North America. Variations of Q at the grid-cell scale are large, except in a few grid cells upstream and downstream of calibration stations, with an average variation of 37 and 74 % among the four homogeneous forcings in calibrated and non-calibrated regions, respectively. Considering only the forcings GSWP3 and WFDEI_hom, i.e., excluding the forcing without undercatch correction (PGFv2.1) and the one with a much lower shortwave downward radiation SWD than the others (WFD), Q variations are reduced to 16 and 31 % in calibrated and non-calibrated regions, respectively. These simulation results support the need for extended Q measurements and data sharing for better constraining global water balance assessments. Over the 20th century, the human footprint on natural water resources has become larger. For 11–18% of the global land area, the change of Q between 1941–1970 and 1971–2000 was driven more strongly by change of human water use including dam construction than by change in precipitation, while this was true for only 9–13 % of the land area from 1911–1940 to 1941–1970.


2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Grace Amin

Bullying is deliberate aggressive action, using an imbalance of strength physically or mentally by hurting physical, verbal, or emotional / psychological forms repeatedly. In the last decade, cases of bullying in Indonesia continue to increase and if not handled properly will increasingly have a negative impact on the development of the children of the nation's next generation. Bullying does not only affect children who are bullied but can also affect children who bully, children who witness bullying. Some of the effects of bullying include anxiety, depression, and low self-esteem. The purpose of community engagement is to socialize the impact of bullying and how to increase self-esteem to adolescents. Through psychoeducation programs in adolescents such as schools and teenagers religious communities in the Cikarang - Bekasi region, young people gain an in-depth understanding of bullying, its effects and how to increase their confidence. Through this psychoeducation, teenagers understand the understanding, types and effects of bullying both short term and long term so they promise to resist bullying starting from themselves. Teenagers learn that humans are social beings who need each other. They learn about the meaning of diversity and bhineka tunggal ika and try to implement it in their next lives by respecting the differences in their environment. These teenagers learn to respect themselves more, see the positive things that God has given them. They try to always believe in themselves that they are perfect and valuable beings in God's eyes so that even though the environment around them may not appreciate, they can still see positive things in themselvesABSTRAK:Bullying adalah tindakan agresif yang disengaja, menggunakan ketidakseimbangan kekuatan secara fisik atau mental dengan cara menyakiti bentuk fisik, verbal, atau emosional/ psikologis secara berulang – ulang. Dalam satu decade terakhir, kasus bullying di Indonesia terus meningkat dan bila tidak ditangani dengan baik akan semakin berdampak negative bagi perkembangan anak – anak generasi penerus bangsa. Tindakan bullying tidak hanya berdampak pada anak yang di-bully tetapi juga dapat berdampak pada anak yang mem-bully, anak yang menyaksikan bullying. Beberapa dampak bullying diantaranya kecemasan, depresi, serta rendahnya harga diri (self-esteem). Tujuan dari pengabdian kepada masyarakat ini adalah untuk mensosialisasikan dampak bullying serta cara meningkatkan self-esteem kepada para remaja. Melalui program psikoedukasi di lingkungan remaja seperti sekolah maupun komunitas keagamaan remaja wilayah Cikarang – Bekasi, para remaja mendapatkan pemahaman mendalam mengenai bullying, dampaknya serta bagaimana cara meningkatkan kepercayaan diri mereka. Melalui psikoedukasi ini, para remaja memahami pengertian, jenis serta dampak bullying baik jangka pendek maupun jangka panjang sehingga mereka berjanji untuk bersikap menolak bullying mulai dari diri mereka sendiri. Para remaja belajar bahwa manusia adalah mahluk social yang saling membutuhkan. Mereka belajar tentang makna keberagaman dan Bhineka Tunggal Ika serta berusaha mengimplementasikannya dalam kehidupan mereka selanjutnya dengan cara menghargai perbedaan yang ada di lingkungannya. Remaja ini belajar untuk lebih menghargai diri mereka, melihat hal positif yang telah diberikan Tuhan kepada mereka. Mereka mencoba untuk selalu menanamkan dalam diri bahwa mereka adalah mahluk yang sempurna dan berharga di mata Tuhan sehingga walaupun lingkungan di sekitar mereka mungkin tidak menghargai, mereka tetap dapat melihat hal positif dalam diri mereka.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Asier Minondo

Purpose This paper aims to analyze the impact of COVID-19 on the trade of goods and services in Spain. Design/methodology/approach This paper uses monthly trade data at the product, region and firm level. Findings The COVID-19 crisis has led to the sharpest collapse in the Spanish trade of goods and services in recent decades. The containment measures adopted to arrest the spread of the virus have caused an especially intense fall of trade in services. The large share of transport equipment, capital goods, products that are consumed outdoors (i.e., outdoor goods) and tourism in Spanish exports has made the COVID-19 trade crisis more intense in Spain than in the rest of the European Union. Practical implications The nature of the collapse suggests that trade in goods can recover swiftly when the health crisis ends. However, COVID-19 may have a long-term negative impact on the trade of services that rely on the movement of people. Originality/value It contributes to understand how COVID-19 has affected the trade in goods and services in Spain.


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