Assessment of On-Farm Water Storage (OFWS) Systems as a BMP for Sustainable Irrigation and Nutrient Loading Control in Mississippi

2015 ◽  
Keyword(s):  
Nutrient Loading ◽  
Water Storage ◽  
Sustainable Irrigation ◽  
On Farm

scholarly journals Potential for sustainable irrigation expansion in a 3 °C warmer climate

2020 ◽  
Vol 117 (47) ◽  
pp. 29526-29534
Author(s):  
Lorenzo Rosa ◽  
Davide Danilo Chiarelli ◽  
Matteo Sangiorgio ◽  
Areidy Aracely Beltran-Peña ◽  
Maria Cristina Rulli ◽  
...  
Keyword(s):  
Climate Change ◽  
Irrigation Water ◽  
Water Demand ◽  
Crop Production ◽  
Cropping Systems ◽  
Water Storage ◽  
Future Research ◽  
Irrigation Water Demand ◽  
Starting Point ◽  
Sustainable Irrigation

Climate change is expected to affect crop production worldwide, particularly in rain-fed agricultural regions. It is still unknown how irrigation water needs will change in a warmer planet and where freshwater will be locally available to expand irrigation without depleting freshwater resources. Here, we identify the rain-fed cropping systems that hold the greatest potential for investment in irrigation expansion because water will likely be available to suffice irrigation water demand. Using projections of renewable water availability and irrigation water demand under warming scenarios, we identify target regions where irrigation expansion may sustain crop production under climate change. Our results also show that global rain-fed croplands hold significant potential for sustainable irrigation expansion and that different irrigation strategies have different irrigation expansion potentials. Under a 3 °C warming, we find that a soft-path irrigation expansion with small monthly water storage and deficit irrigation has the potential to expand irrigated land by 70 million hectares and feed 300 million more people globally. We also find that a hard-path irrigation expansion with large annual water storage can sustainably expand irrigation up to 350 million hectares, while producing food for 1.4 billion more people globally. By identifying where irrigation can be expanded under a warmer climate, this work may serve as a starting point for investigating socioeconomic factors of irrigation expansion and may guide future research and resources toward those agricultural communities and water management institutions that will most need to adapt to climate change.

Developing soil health indicators for improved soil management on farm

2021 ◽  
pp. 289-328
Author(s):  
Elizabeth Stockdale ◽  
◽  
Paul Hargreaves ◽  
Anne Bhogal ◽  
◽  
...  
Keyword(s):  
Soil Health ◽  
Water Storage ◽  
Soil Management ◽  
Health Indicators ◽  
Traffic Light ◽  
Essential Step ◽  
The World ◽  
On Farm ◽  
Water Catchment ◽  
Structure Water

A range of chemical, physical and biological processes are important for sustained productivity and environmental quality in agricultural systems. Farmers and scientists share a concern with soil health, and this leads to questions for both measurement and management. An essential step is to define the context and the key functions required of a soil at the scale of interest (e.g. farm, drinking water catchment, region). Only then can appropriate indicator measurements be selected. Current soil health frameworks across the world commonly use organic matter (carbon), pH, extractable phosphorus, and various indicators of soil structure/water storage. A framework of interpretation shows whether the measured values are acceptable or whether one or more soil functions are constrained. A number of the soil health frameworks in practical use present the soil health indicators in a scorecard using traffic light coding to direct users towards guidance for improved soil management on-farm.

DAM EA$Y—software for assessing the costs and benefits of on-farm water storage based production systems

2003 ◽  
Vol 76 (1) ◽  
pp. 19-38 ◽  
Author(s):  
S.N Lisson ◽  
L.E Brennan ◽  
K.L Bristow ◽  
B.A Keating ◽  
D.A Hughes
Keyword(s):  
Production Systems ◽  
Water Storage ◽  
Costs And Benefits ◽  
On Farm

scholarly journals Using AnnAGNPS to Simulate Runoff, Nutrient, and Sediment Loads in an Agricultural Catchment with an On-Farm Water Storage System

Climate ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 133
Author(s):  
Juan D. Pérez-Gutiérrez ◽  
Joel O. Paz ◽  
Mary Love M. Tagert ◽  
Lindsey M. W. Yasarer ◽  
Ronald L. Bingner
Keyword(s):  
Winter Wheat ◽  
Best Management Practices ◽  
Management Practices ◽  
Storage System ◽  
Water Storage ◽  
Watershed Scale ◽  
Southeastern Us ◽  
Sediment Loads ◽  
The Individual ◽  
On Farm

On-farm water storage (OFWS) systems are best management practices that consist of a tailwater recovery (TWR) ditch used with a storage pond to provide irrigation water and improve downstream water quality. These systems have been increasingly implemented in the southeastern US, but the individual and cumulative effects of these systems on a watershed scale are unknown. In this study, the runoff, nutrient, and sediment loads entering a TWR ditch in an agricultural catchment were quantified, and contributing sources were identified using the annualized agricultural non-point source (AnnAGNPS) model. Fields with larger areas and soils with a high runoff potential produced more runoff. The volume of runoff exceeded the TWR ditch storage volume approximately 110 times, mostly during the winter and spring seasons. During years when corn and winter wheat were planted, NO3–N loads increased because these crops need nitrogen fertilization to grow. Planting winter wheat in priority subwatersheds reduced the total phosphorous (TP) and sediment loads by about 19% and 13%, respectively, at the TWR ditch inlet. Planting winter wheat can reduce runoff, TP, and sediment loads but also result in higher NO3–N loads. AnnAGNPS simulations quantified the benefits of an OFWS system to advance the understanding of their impact on water availability and quality at a watershed scale.

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