Impact of agricultural water reallocation on crop yield and revenue: a case study in China

Water Policy ◽  
2016 ◽  
Vol 19 (3) ◽  
pp. 513-531
Author(s):  
Xiaoping Dai ◽  
Xiaohong Zhang ◽  
Yuping Han ◽  
Huiping Huang ◽  
Xu Geng
Keyword(s):  
Crop Yield ◽  
Irrigation Water ◽  
Positive Impact ◽  
Water Source ◽  
Irrigation District ◽  
Agricultural Water ◽  
Irrigation Frequency ◽  
Canal Irrigation ◽  
Using Data ◽  
The Impact

Our study area in the People's Victory Canal Irrigation District of Henan Province in China has been transferring agricultural water to the city for municipal use. This study starts with an examination of the impacts of irrigation frequency, irrigation water sources, and irrigation water supply performance on crop yield and net crop revenue, using data from a survey of 182 households in the study area. Thereafter, it analyzes the impact of agricultural water reallocation (AWR) on crop yield and revenue. The study ends with an estimation of the compensation for affected farmers and a discussion of the compensation methods. Regression results indicate that irrigation frequency shows a significantly positive impact on crop yield and net crop revenue. The change of irrigation water source from canal water to well water and local small river water decreases the integrated crop yield of wheat and rice by 9% and 12%, and decreases the net integrated crop revenue by 16% and 19%, respectively. AWR decreases the integrated crop yield of wheat and rice by at least 2%, and decreases the net integrated crop revenue by at least 3.5%. Estimated compensation for affected farmers is between 78.72 and 97.85 USD/ha.

Implications of less tail end water on livelihoods of small farmers in Pakistan

2017 ◽  
Vol 46 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Akhter Ali ◽  
Dil Bahadur Rahut ◽  
Muhammad Imtiaz
Keyword(s):  
Water Availability ◽  
Water Scarcity ◽  
Household Income ◽  
Water Source ◽  
Land Rent ◽  
Absolute Deviation ◽  
Canal Irrigation ◽  
Using Data ◽  
The Impact ◽  
Poverty Levels

In Pakistan, about 80% of the cropped area is irrigated using canal irrigation, and water availability is closely linked to the location of the farm. Using data collected from 950 farmers through a field survey covering four provinces (Punjab, Sindh, Khyber Pakhtunkhwa and Balochistan), this study aimed to assess the impact of location, that is, ‘head’ versus ‘tail’ on water availability and its impact on crop yield, household income, food security and poverty levels. The censored least absolute deviation was used to estimate farmer participation in water markets, and the propensity score matching was used to assess impacts on yield of wheat and rice, household income and poverty levels as well as land rent and water scarcity. The results show that farmers situated at the head of the water source have higher wheat and rice yields in the range of 2–3 maunds per acre. Household income levels are higher in the range of PKR 8455–14,673, and poverty levels are lower (+3% to 5%). The land rent at the head is higher compared to the tail while water scarcity is also less at the head. The study indicated that farmers’ status plays a major role in land location and access to irrigation water.

scholarly journals Modeling the Impact of Climate Changes on Crop Yield: Irrigated vs. Non-Irrigated Zones in Mississippi

2021 ◽  
Vol 13 (12) ◽  
pp. 2249
Author(s):  
Sadia Alam Shammi ◽  
Qingmin Meng
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Crop Yields ◽  
Negative Impact ◽  
Positive Impact ◽  
Information Criterion ◽  
Growing Season ◽  
Maximum Temperature ◽  
Linear Regression Models ◽  
The Impact

Climate change and its impact on agriculture are challenging issues regarding food production and food security. Many researchers have been trying to show the direct and indirect impacts of climate change on agriculture using different methods. In this study, we used linear regression models to assess the impact of climate on crop yield spatially and temporally by managing irrigated and non-irrigated crop fields. The climate data used in this study are Tmax (maximum temperature), Tmean (mean temperature), Tmin (minimum temperature), precipitation, and soybean annual yields, at county scale for Mississippi, USA, from 1980 to 2019. We fit a series of linear models that were evaluated based on statistical measurements of adjusted R-square, Akaike Information Criterion (AIC), and Bayesian Information Criterion (BIC). According to the statistical model evaluation, the 1980–1992 model Y[Tmax,Tmin,Precipitation]92i (BIC = 120.2) for irrigated zones and the 1993–2002 model Y[Tmax,Tmean,Precipitation]02ni (BIC = 1128.9) for non-irrigated zones showed the best fit for the 10-year period of climatic impacts on crop yields. These models showed about 2 to 7% significant negative impact of Tmax increase on the crop yield for irrigated and non-irrigated regions. Besides, the models for different agricultural districts also explained the changes of Tmax, Tmean, Tmin, and precipitation in the irrigated (adjusted R-square: 13–28%) and non-irrigated zones (adjusted R-square: 8–73%). About 2–10% negative impact of Tmax was estimated across different agricultural districts, whereas about −2 to +17% impacts of precipitation were observed for different districts. The modeling of 40-year periods of the whole state of Mississippi estimated a negative impact of Tmax (about 2.7 to 8.34%) but a positive impact of Tmean (+8.9%) on crop yield during the crop growing season, for both irrigated and non-irrigated regions. Overall, we assessed that crop yields were negatively affected (about 2–8%) by the increase of Tmax during the growing season, for both irrigated and non-irrigated zones. Both positive and negative impacts on crop yields were observed for the increases of Tmean, Tmin, and precipitation, respectively, for irrigated and non-irrigated zones. This study showed the pattern and extent of Tmax, Tmean, Tmin, and precipitation and their impacts on soybean yield at local and regional scales. The methods and the models proposed in this study could be helpful to quantify the climate change impacts on crop yields by considering irrigation conditions for different regions and periods.

Research on the Impact of Information Security Certification and Concealment onFinancial Performance

2022 ◽  
Vol 30 (3) ◽  
pp. 0-0
Keyword(s):  
Information Security ◽  
Financial Performance ◽  
Positive Impact ◽  
Rapid Development ◽  
International Standards ◽  
Corporate Decisions ◽  
Using Data ◽  
The Impact ◽  
The Relationship ◽  
Iso 27001

With the rapid development of information technology, information security has been gaining attention. The International Organization for Standardization (ISO) has issued international standards and technical reports related to information security, which are gradually being adopted by enterprises. This study analyzes the relationship between information security certification (ISO 27001) and corporate financial performance using data from Chinese publicly listed companies. The study focusses on the impact of corporate decisions such as whether to obtain certification, how long to hold certification, and whether to publicize information regarding certification. The results show that there is a positive correlation between ISO 27001 and financial performance. Moreover, the positive impact of ISO 27001 on financial performance gradually increases with time. In addition, choosing not to publicize ISO 27001 certification can negatively affect enterprise performance.

scholarly journals Entrepreneurial intention of engineering students: the role of motivations and barriers

2021 ◽  
Vol 5 (2) ◽  
pp. first
Author(s):  
Bich Huy Hai Bui ◽  
Minh Tien Pham
Keyword(s):  
Engineering Students ◽  
Positive Impact ◽  
Entrepreneurial Intention ◽  
Statistical Regression ◽  
Internal Factors ◽  
University Of Technology ◽  
Entrepreneurial Motivations ◽  
Using Data ◽  
The Impact

The purpose of this study is to explore perceptions of entrepreneurial motivations and barriers and to assess their influence on the entrepreneurial intention of engineering students. Using data of 350 respondents who are students at HCMC University of Technology, VNU-HCM, the study identifies the key motives and barriers towards entrepreneurship. The data are then subjected to statistical regression in order to identify causal relationships between the motivations, barriers, and entrepreneurial intention. The results indicate that creativity, independence, and economic motivation have a positive impact on entrepreneurial intention and that the most important motivator for the entrepreneurial intention of engineering students is creativity. On the contrary, lack of knowledge is the only barrier (an internal barrier) that impedes the students' intention of entrepreneurship. These results imply that the students' entrepreneurial intention is more affected by internal factors (for both motivations and barriers) than external factors. In terms of the relative power of the effects of motives and barriers on students' entrepreneurial intention, the results suggest that the impact of motivations is generally more powerful than that of barriers. The findings have important implications for educators and policymakers.

scholarly journals Motivation and Academic Performance: An Inter-country Comparison

2020 ◽  
Vol 3 (3) ◽  
pp. p70
Author(s):  
Lewis R. Gale ◽  
Clifford Nowell
Keyword(s):  
Academic Achievement ◽  
Academic Performance ◽  
Positive Impact ◽  
Country Comparison ◽  
Using Data ◽  
The Impact ◽  
The Relationship ◽  
Detrimental Impact ◽  
The U.S ◽  
External Motivation

The objective of this paper is to explore the impact of amotivation on academic performance and to test whether the impact of motivation on academic performance differs across students from China and the U.S. Using data from Chinese and U.S. students located in their home countries, we find amotivation negatively impacts academic performance of both groups of students. We also show that external motivation is positively associated with academic achievement. While these findings are consistent with results from previous studies, we extend the understanding on the relationship between motivation and academic performance by demonstrating that the magnitude of the detrimental impact of amotivation differs between students in the two countries and that the positive impact of higher levels of external motivation provides similar benefits for both groups of students.

The Differential Impact of New Product Development “Make/Buy” Choices on Immediate and Future Product Quality: Insights from the Automobile Industry

2017 ◽  
Vol 81 (6) ◽  
pp. 1-23 ◽  
Author(s):  
Kartik Kalaignanam ◽  
Tarun Kushwaha ◽  
Tracey A. Swartz
Keyword(s):  
Product Development ◽  
Product Quality ◽  
New Product Development ◽  
Automobile Industry ◽  
Positive Impact ◽  
New Product ◽  
The United States ◽  
Trade Offs ◽  
Using Data ◽  
The Impact

This article examines the impact of new product development (NPD) “make/buy” choices on product quality using data from the automobile industry. Although the business press has lamented that NPD outsourcing compromises product quality, there is no systematic evidence to support or refute this assertion. Against this backdrop, this study tests a contingency model of the impact of NPD make/buy decisions on immediate and future product quality. The hypotheses are tested using data on NPD make/buy choices of 173 models of 12 automobile firms in the United States between 2007 and 2014. The authors find that whereas NPD buy has a more positive impact on immediate product quality, NPD make has a more positive impact on future product quality. Furthermore, the immediate product quality impact of NPD buy is stronger when (1) technologies are more complex and (2) firm NPD capability is higher. In contrast, the future product quality impact of NPD make is stronger when (1) there is postlaunch adverse feedback and (2) firm NPD capability is higher. The study highlights the complex trade-offs associated with NPD make/buy decisions and offers valuable insights on how firms could manage these decisions.

scholarly journals What Is the Consensus from Multiple Conclusions of Future Crop Yield Changes Affected by Climate Change in China?

2020 ◽  
Vol 17 (24) ◽  
pp. 9241
Author(s):  
Chengfang Huang ◽  
Ning Li ◽  
Zhengtao Zhang ◽  
Yuan Liu ◽  
Xi Chen ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Crop Yields ◽  
Positive Impact ◽  
Scientific Evidence ◽  
Future Climate Change ◽  
Systematic Review Methodology ◽  
Uncertainty Interval ◽  
The Impact ◽  
Yield Decrease

Many studies have shown that climate change has a significant impact on crop yield in China, while results have varied due to uncertain factors. This study has drawn a highly consistent consensus from the scientific evidence based on numerous existing studies. By a highly rational systematic review methodology, we obtained 737 result samples with the theme of climate change affecting China’s crop yields. Then, we used likelihood scale and trend analysis methods to quantify the consensus level and uncertainty interval of these samples. The results showed that: (i) The crop yield decrease in the second half of the 21st century will be greater than 5% of that in the first half. (ii) The crop most affected by climate change will be maize, with the decreased value exceeding −25% at the end of this century, followed by rice and wheat exceeding −10% and −5%. (iii) The positive impact of CO2 on crop yield will change by nearly 10%. Our conclusions clarify the consensus of the impact of future climate change on China’s crop yield, and this study helps exclude the differences and examine the policies and actions that China has taken and should take in response to climate change.

EFFECT OF SALINE IRRIGATION WATER ON MUSTARD (BRASSICA JUNCEA) CROP YIELD AND SOIL SALINITY IN A SEMI-ARID AREA OF NORTH INDIA

2011 ◽  
Vol 48 (1) ◽  
pp. 99-110 ◽  
Author(s):  
AJAY SINGH ◽  
SUDHINDRA NATH PANDA
Keyword(s):  
Brassica Juncea ◽  
Crop Yield ◽  
Soil Salinity ◽  
Irrigation Water ◽  
Growth Yield ◽  
Water Source ◽  
North India ◽  
Canal Water ◽  
Saline Irrigation ◽  
Saline Groundwater

SUMMARYThe groundwater in some parts of north India is generally saline and not suitable for drinking. However, it can be used for growing salt-tolerant crop plants. To explore the potential of using saline groundwater for farm production, a field experiment was conducted at Shahpur village, near Hisar in Haryana State, India, to study the effect of different qualities of irrigation water on mustard (Brassica juncea, cv. RH–30) crop growth, yield, water use efficiency and soil salinity. Treatments consisted of combinations of irrigation with saline groundwater (electrical conductivity (EC) 7.48 dS m−1), and a good quality canal water (EC 0.4 dS m−1) applied either alone, as blends or in alternate applications. In all treatments, canal water was used for pre-sowing irrigation. In mustard cultivation, saline groundwater with an EC of 7.48 dS m−1 can be used safely to supplement all post-sowing irrigations with marginal decline in crop yield. Irrigation with saline groundwater gave a yield as high as 95% of the optimum crop yield obtained with fresh canal water. The temporal variation in salinity showed that mustard yield responds to the average salinity of the soil during the growing season. Thus saline groundwater is a good water source to exploit for supplemental irrigation.

scholarly journals The impact of participation in employment-based retirement savings plans on material hardship

2015 ◽  
Vol 15 (4) ◽  
pp. 407-428
Author(s):  
BRADLEY T. HEIM ◽  
SHANTHI P. RAMNATH
Keyword(s):  
Income Distribution ◽  
Low Income ◽  
Positive Impact ◽  
Retirement Savings ◽  
Program Participation ◽  
Material Hardship ◽  
Short Term ◽  
Financial Difficulties ◽  
Using Data ◽  
The Impact

AbstractTo contribute to a retirement plan (barring an increase in income), an individual must either reduce consumption or increase debt. Using data from the 2004 wave of the Survey of Income and Program Participation, we examine the extent to which contributing to 401(k)-type accounts leads to an increase in short-term financial difficulties, particularly among low-income individuals. After instrumenting for plan take-up, we find that contributing to a 401(k) plan appears to have a small positive impact on the presence of any material hardship and debt holding among the lowest income quintiles, though that effect diminishes further up the income distribution.

Impact of changing cropping pattern on the regional agricultural water productivity

2014 ◽  
Vol 153 (5) ◽  
pp. 767-778 ◽  
Author(s):  
S. K. SUN ◽  
P. T. WU ◽  
Y. B. WANG ◽  
X. N. ZHAO
Keyword(s):  
Water Scarcity ◽  
Crop Production ◽  
Water Footprint ◽  
Water Productivity ◽  
Irrigation District ◽  
Cropping Pattern ◽  
Agricultural Water ◽  
Cropping Patterns ◽  
Cash Crops ◽  
The Impact

SUMMARYWater scarcity is a major constraint of agricultural production in arid and semi-arid areas. In the face of future water scarcity, one possible way the agricultural sector could be adapted is to change cropping patterns and make adjustments for available water resources for irrigation. The present paper analyses the temporal evolution of cropping pattern from 1960 to 2008 in the Hetao Irrigation District (HID), China. The impact of changing cropping patterns on regional agricultural water productivity is evaluated from the water footprint (WF) perspective. Results show that the area under cash crops (e.g. sunflower and melon) has risen phenomenally over the study period because of increased economic returns pursued by farmers. Most of these cash crops have a smaller WF (high water productivity) than grain crops in HID. With the increase of area sown to cash crops, water productivity in HID increased substantially. Changing the cropping pattern has significant effects on regional crop water productivity: in this way, HID has increased the total crop production without increasing significantly the regional water consumption. The results of this case study indicate that regional agricultural water can be used effectively by properly planning crop areas and patterns under irrigation water limitations. However, there is a need to foster a cropping pattern that is multifunctional and sustainable, which can guarantee food security, enhance natural resource use and provide stable and high returns to farmers.

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