scholarly journals Advances in Drainage: Selected Works from the Tenth International Drainage Symposium

2018 ◽  
Vol 61 (1) ◽  
pp. 161-168 ◽  
Author(s):  
Jeffrey S. Strock ◽  
Christopher Hay ◽  
Matthew J. Helmers ◽  
Kelly A. Nelson ◽  
Gary R. Sands ◽  
...  
Keyword(s):  
Water Quality ◽  
Agricultural Production ◽  
Crop Production ◽  
Water Quantity ◽  
Agricultural Drainage ◽  
Crop Response ◽  
Scale Modeling ◽  
Production Water ◽  
Wide Range ◽  
Water Quality And Quantity

Abstract. This article introduces a special collection of fourteen articles accepted from among the 140 technical presentations, posters, and meeting papers presented at the 10th International ASABE Drainage Symposium. The symposium continued in the tradition of previous symposia that began in 1965 as a forum for presenting and assessing the progress of drainage research and implementation throughout the world. The articles in this collection address a wide range of topics grouped into five broad categories: (1) crop response, (2) design and management, (3) hydrology and scale, (4) modeling, and (5) water quality. The collection provides valuable information for scientists, engineers, planners, and others working on crop production, water quality, and water quantity issues affected by agricultural drainage. The collection also provides perspectives on the challenges of increasing agricultural production in a changing climate, with ever-greater attention to water quality and quantity concerns that will require integrated technical, economic, and social solutions. Keywords: ASABE Drainage Symposium, crop response, design and management, hydrology and scale, modeling, water quality.

Study on the Water Quality and Quantity Scheduling Scheme in Xinxue River Constructed Wetland of China under the Constraint Condition of Class III of Surface Water Quality

2011 ◽  
Vol 374-377 ◽  
pp. 923-927
Author(s):  
Chao Liu ◽  
Xiao Jie Cao ◽  
Chao Wang ◽  
Jing Jing Sun ◽  
Yu Ting Gu
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Constructed Wetland ◽  
Surface Water Quality ◽  
Ammonia Nitrogen ◽  
Water Quantity ◽  
Constraint Condition ◽  
Scheduling Scheme ◽  
Influent Water ◽  
Water Quality And Quantity

Using Xinxue River Constructed Wetland as the study object, the wetland prediction models based on BP neural network were established through the seasonal division of the wetland, and the maximum influent water load was determined on the constraint condition that effluent water quality achieved class Ⅲ of surface water quality. Then nonlinear functions of water quality and quantity scheduling were constructed by Origin software. The optimal influent load was determined adopting prediction results of the models as constraint conditions of the functions. Thus the water quality and quantity scheduling scheme of the wetland was established. The results show that optimal influent load for Feb. ~ May: the influent water quantity is no more than 8560m3/d, CODCr is 25.47mg/l~26.37mg/l, ammonia nitrogen 0.11mg/l~1.0mg/l, TN 10.28mg/l~10.51mg/l, TP 0.16mg/l; for Jun. ~ Sept.: the water quantity is no more than 31750m3/d, CODCr is 26mg/l~32.36mg/l, or 37.15mg/l~45.37mg/l, ammonia nitrogen 0.48 mg/l~1.78mg/l, TN 5.15mg/l~6.18mg/l, TP 0.07mg/l~0.09mg/l; for Oct. ~ Dec.: the water quantity is no more than 11070m3/d, CODCr is 24.55mg/l~26.91mg/l, ammonia nitrogen no more than 0.75, TN no more than 8.61 mg/l, TP 0.10mg/l~0.12mg/l, or 0.16mg/l~0.17mg/l.

scholarly journals Organizational and economic priorities for the agro-industrial complex development in Russia at the regional level

2021 ◽  
Vol 937 (3) ◽  
pp. 032061
Author(s):  
N Osadchaya ◽  
A Murzin ◽  
R Revunov ◽  
G Plokhotnikova
Keyword(s):  
Russian Federation ◽  
Agricultural Production ◽  
Crop Production ◽  
Large Scale ◽  
Climatic Factors ◽  
The State ◽  
Industrial Complex ◽  
Wide Range ◽  
Complex Development ◽  
The Russian Federation

Abstract The purpose of this study is to identify the main trends in the agro-industrial complex development of the Russian Federation, substantiate the organizational and economic recommendations aimed at stimulating Russian agricultural production and enhancing of this economy sector competitiveness. An extensive corpus of empirical data reflecting the agro-industrial complex development in the Russian Federation in 2016-2020, as well as its place in foreign trade operations of the Russian Federation has been thoroughly studied in frames of this research. Using the tools of statistical data processing (sampling, observation, summary and grouping), the methods of econometric analysis, the dynamics of agro-industrial complex products manufacturing, the rate of the main indicators’ change, the place of agro-industrial complex in export-import operations of the Russian Federation have been revealed, the main indicators have been compared. The geographic conditions diversity of the Russian Federation, combined with a wide range of climatic features, the availability of land and water resources creates favorable conditions for productive agricultural activities. It has been established that large-scale agricultural producers dominate in agro-industrial complex of the Russian Federation. The directions of agro-industrial complex, in particular, crop production and cattle rising, are unevenly developing in the Russian Federation. The constituent entities of the Russian Federation, which administratively represent the Southern Federal and North Caucasian Federal Districts specialize mainly in the cultivation of grain and oilseeds due to the natural and climatic factors’ action. State authorities of the Russian Federation successfully implement the tools to stimulate agricultural production, in particular: preferential taxation regime, subsidies for lending to the agro-industrial complex economic entities from the state budget, leasing development, etc. The state support mechanism effectiveness can be intensified by using the organizational and economic tools substantiated by the authors.

An Impact of Innovations on Agricultural Production and Malong the Koshi-Highway of Eastern Nepal

2020 ◽  
Vol 4 (1) ◽  
pp. 164-175
Author(s):  
Shyam Prasad Wagle
Keyword(s):  
Agricultural Production ◽  
Crop Production ◽  
New Technologies ◽  
Production Systems ◽  
Secondary Data ◽  
Primary Data ◽  
Innovative Methods ◽  
Wide Range ◽  
The Government ◽  
The Impact

 The study assesses the impact of using new technologies on crop production and marketing of selected crops particularly in the case of the Eastern hills. It also evaluates the role of governmental and non-govrnmental organizations to improve agricultural production systems too. Relevant data have been collected from both primary and secondary sources. Primary data draws from the interview, key informant survey and field observation. For this, 30 percent sample households were selected from three altitude belts (upper, middle and lower belts) ranging from 300 to 2,250 masl along the Koshi-highway. It has a wide range of climates, ranging from sub-tropical to alpine with monsoon precipitation in the summer for three and half months and therefore it has diversity in flora and fauna, and people. Similarly, secondary data havebeen gathered from various books, journals and official records. This paper presented that the crucial impact of acceptance of innovative methods in agriculture in the study area is a combined effort of both local people and government. The government together with the development agencies and non-government organizations has contributed to impart knowledge of the agriculture innovative methods in the local farmers and at the same time, the farmers were enthusiastic to learn and adopt those methods. As a result, one can easily see the remarkable changes in crop production due to the impact of new technologies.

scholarly journals Reducing Unavoidable Nutrient Losses from Florida's Horticultural Crops

2010 ◽  
Vol 20 (1) ◽  
pp. 52-66 ◽  
Author(s):  
S. Shukla ◽  
B.J. Boman ◽  
R.C. Ebel ◽  
P.D. Roberts ◽  
E.A. Hanlon
Keyword(s):  
Water Quality ◽  
Water Table ◽  
Crop Production ◽  
Management Strategies ◽  
Water Quantity ◽  
Research Needs ◽  
Watershed Scale ◽  
Nutrient Losses ◽  
Nutrient Loadings ◽  
Horticultural Crops

Despite efforts to optimize water and nutrient inputs to Florida's vegetable and fruit crops, the sandy soils, shallow water table, and tropical climate of Florida result in nutrient leaching losses that are unavoidable. Water quantity and quality management strategies that can reduce these nutrient losses from Florida's horticultural crops were reviewed and research needs for quantifying their effectiveness were identified. The water quantity management strategies included water table management for irrigation, drainage management, detention of runoff and drainage, and summer flooding. In addition to the expected water quality benefits of these practices, potential effects on crop production and farm economics were also discussed. Watershed-scale adoption of stormwater harvesting has the potential to not only reduce the nutrient loadings but also become a source of additional income for landowners through water trading. The water quality practices included structural and managerial practices (e.g., vegetative filter strips and ditch cleaning). Key research needs for reducing the unavoidable nutrient discharges included the development of a crop-specific drainage management tool; quantification of farm and watershed-scale benefits of stormwater detention and its reuse with regards to nutrient loadings, water supply, crop production, and farm income; enhancement of hydraulic efficiency of detention areas; and effects of summer flooding and ditch maintenance and cleaning on nutrient discharges.

scholarly journals How Water Quality and Quantity Affect Pepper Yield and Postharvest Quality

Horticulturae ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 4 ◽  
Author(s):  
Elazar Fallik ◽  
Sharon Alkalai-Tuvia ◽  
Daniel Chalupowicz ◽  
Merav Zaaroor-Presman ◽  
Rivka Offenbach ◽  
...  
Keyword(s):  
Water Quality ◽  
Weight Loss ◽  
Irrigation Water ◽  
Total Yield ◽  
Postharvest Quality ◽  
Water Quantity ◽  
Salty Water ◽  
Quality Water ◽  
Export Quality ◽  
Water Quality And Quantity

There are gaps in our knowledge of the effects of irrigation water quality and amount on yield and postharvest quality of pepper fruit (Capsicum annuum L.). We studied the effects of water quality and quantity treatments on pepper fruits during subsequent simulated storage and shelf-life. Total yield decreased with increasing water salinity, but export-quality yield was not significantly different in fruits irrigated with water of either 1.6 or 2.8 dS/m, but there was a 30–35% reduction in export-quality yield following use of water at 4.5 dS/m. Water quantity hardly affected either total or export-quality yield. Water quality but not quantity significantly affected fruit weight loss after 14 days at 7 °C plus three days at 20 °C; irrigation with water at 2.8 dS/m gave the least weight loss. Fruits were significantly firmer after irrigation with good-quality water than with salty water. The saltier the water, the higher was the sugar content. Vitamin C content was not affected by water quality or quantity, but water quality significantly affected antioxidant (AOX) content. The highest AOX activity was found with commercial quality water, the lowest with salty water. Pepper yield benefited by irrigation with fresh water (1.6 dS/m) and was not affected by water quantity, but post-storage fruit quality was maintained better after use of moderately-saline water (2.8 dS/m). Thus, irrigation water with salinity not exceeding 2.8 dS/m will not impair postharvest quality, although the yield will be reduced at this salinity level.

Variations in Quality and Quantity of Slims River Water, Yukon Territory

1972 ◽  
Vol 9 (11) ◽  
pp. 1469-1478 ◽  
Author(s):  
M. Leonard Bryan
Keyword(s):  
Water Quality ◽  
River Water ◽  
Yukon Territory ◽  
Water Quantity ◽  
Glacier Terminus ◽  
Melt Water ◽  
Ablation Pattern ◽  
Water Quality And Quantity ◽  
Kluane Lake

The Slims River, one of the two outlets draining the Kaskawulsh Glacier of the Icefield Ranges, Yukon Territory, Canada, is seen to have a variation in both quality and quantity of discharge. These variations, studied for several 24 hour periods during the summer of 1970, are reflections of both the diurnal ablation pattern of the Kaskawulsh Glacier and of a shift in the glacial drainage, a shift which is thought to be due to ice movements at the glacial terminus. Water quality and quantity was measured at the bridge where the Alaska Highway crosses the Slims River and its delta in Kluane Lake. In addition, several similar measurements were taken on tributary streams entering the Slims River below the glacier terminus. Both sets of measurements show a distinct change during early August, the water quantity decreased by a factor of 3–5 and the quality became decidedly less fresh. The change in quality is considered to be a result of the decrease in the proportion of glacial melt water in the Slims River. The effects these changes in river water may have on sediment regimes in Kluane Lake are briefly discussed.

Communicating with Extension Clients about Water

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Alexa J. Lamm ◽  
Phillip S. Stokes ◽  
Caroline G. Roper
Keyword(s):  
Water Quality ◽  
Public Opinion ◽  
The United States ◽  
Water Quantity ◽  
Surrounding Water ◽  
Specialty Crop ◽  
Important Extension ◽  
Water Quality And Quantity ◽  
Water Issues ◽  
Water Quantity And Quality

The conservation and preservation of natural resources is one of the most pressing issues facing the nation today (Gregory & Di Leo, 2003). Among these natural resource issues are the issues of water quality and quantity. Water is one of the most important resources in the United States, and is especially important in Florida. Not only is Florida a specialty crop state, but the Florida economy also depends highly on tourism and recreation, both of which thrive on water. Water impacts Florida’s tourism, agriculture, retail, and real estate development industries, all of which significantly contribute to Florida’s economy (Odera, Lamm, Dukes, Irani, & Carter, 2013). As the U.S. and Florida populations continue to increase and the demand for fresh, clean water rises, water quality and quantity issues will become increasingly important. Extension faculty should understand public opinion surrounding water issues and identify the information that needs to be communicated to the public about water issues, as well as the best mode for this communication. By understanding public opinion and topics of interest surrounding water quantity and quality, as well as Florida residents’ preferred communication methods, Extension faculty will be able to communicate more effectively with clients about water. The issues associated with water quantity and quality are of ever-increasing importance, and are considered a priority by UF/IFAS Extension. Enhancing and protecting water quality, quantity, and supply is considered a high-priority initiative in the 2013–2023 Florida Extension Roadmap. This EDIS publication will provide an overview of how to communicate with Florida residents about water, including information about their preferred communication method and what topics surrounding water Florida residents find of interest. This publication will better equip Extension faculty to discuss water quantity and quality issues with Florida residents.

The way of value of Correlation of genomic DNA microsatellite loci and live weight of Chukchi reindeer

2020 ◽  
pp. 27-32
Author(s):  
V. Dodokhov ◽  
N. Pavlova ◽  
T. Rumyantseva ◽  
L. Kalashnikova
Keyword(s):  
Microsatellite Markers ◽  
Agricultural Production ◽  
Live Weight ◽  
Biodiversity Loss ◽  
Tribal Community ◽  
High Germination ◽  
Wide Range ◽  
The Mean ◽  
High Level ◽  
Dna Microsatellite

The article presents the genetic characteristic of the Chukchi reindeer breed. The object of the study was of the Chukchi reindeer. In recent years, the number of reindeer of the Chukchi breed has declined sharply. Reduced reindeer numbers could lead to biodiversity loss. The Chukchi breed of deer has good meat qualities, has high germination viability and is adapted in adverse tundra conditions of Yakutia. Herding of the Chukchi breed of deer in Yakutia are engaged only in the Nizhnekolymsky district. There are four generic communities and the largest of which is the agricultural production cooperative of nomadic tribal community «Turvaurgin», which was chosen to assess the genetic processes of breed using microsatellite markers: Rt6, BMS1788, Rt 30, Rt1, Rt9, FCB193, Rt7, BMS745, C 143, Rt24, OheQ, C217, C32, NVHRT16, T40, C276. It was found that microsatellite markers have a wide range of alleles and generally have a high informative value for identifying of genetic differences between animals and groups of animal. The number of identified alleles is one of the indicators of the genetic diversity of the population. The total number of detected alleles was 127. The Chukchi breed of deer is characterized by a high level of heterozygosity, and the random crossing system prevails over inbreeding in the population. On average, there were 7.9 alleles (Na) per locus, and the mean number of effective alleles (Ne) was 4.1. The index of fixation averaged 0.001. The polymorphism index (PIC) ranged from 0.217 to 0.946, with an average of 0.695.

Unintended consequences of biofuels production?The effects of large-scale crop conversion on water quality and quantity

2010 ◽  
Author(s):  
Heather L. Welch ◽  
Christopher T. Green ◽  
Richard A. Rebich ◽  
Jeannie R.B. Barlow ◽  
Matthew B. Hicks
Keyword(s):  
Water Quality ◽  
Large Scale ◽  
Unintended Consequences ◽  
Water Quality And Quantity
Sign in / Sign up

Export Citation Format

Share Document