scholarly journals Best Management Practices for Sustaining Agricultural Production at Choctawhatchee Watershed in Alabama, USA, in Response to Climate Change

2021 ◽  
Vol 14 ◽  
pp. 117862212199178
Author(s):  
Mahnaz Dil Afroz ◽  
Runwei Li ◽  
Khaleel Muhammed ◽  
Aavudai Anandhi ◽  
Gang Chen
Keyword(s):  
Climate Change ◽  
Crop Rotation ◽  
Best Management Practices ◽  
Agricultural Production ◽  
Management Practices ◽  
Crop Yields ◽  
Fertilizer Use ◽  
Best Management ◽  
Early Planting ◽  
Loamy Sand Soil

Climate change will ultimately result in higher surface temperature and more variable precipitation, negatively affecting agricultural productivity. To sustain the agricultural production in the face of climate change, adaptive agricultural management or best management practices (BMPs) are needed. The currently practiced BMPs include crop rotation, early planting, conservation tillage, cover crops, effective fertilizer use, and so on. This research investigated the agricultural production of BMPs in response to climate change for a Hydrologic Unit Code12 sub-watershed of Choctawhatchee Watershed in Alabama, USA. The dominating soil type of this region was sandy loam and loamy sand soil. Agricultural Production Systems sIMulator and Cropping Systems Simulation Model were used to estimate the agricultural production. Representative Concentration Pathway (RCP) 4.5 and RCP8.5 that projected a temperature increase of 2.3℃ and 4.7℃ were used as climate scenarios. The research demonstrated that crop rotation had positive response to climate change. With peanuts in the rotation, a production increase of 105% was observed for cotton. There was no consistent impact on crop yields by early planting. With selected peanut-cotton rotations, 50% reduced nitrogen fertilizer use was observed to achieve comparable crop yields. In response to climate change, crop rotation with legume incorporation is thus suggested, which increased crop production and reduced fertilizer use.

Meeting Water Quality Goals by Spatial Targeting of Best Management Practices under Climate Change

2019 ◽  
Vol 63 (2) ◽  
pp. 173-184 ◽  
Author(s):  
Yuelu Xu ◽  
Darrell J. Bosch ◽  
Moges B. Wagena ◽  
Amy S. Collick ◽  
Zachary M. Easton
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Best Management Practices ◽  
Management Practices ◽  
Best Management ◽  
Spatial Targeting

A Review and Discussion on Modeling and Assessing Agricultural Best Management Practices under Global Climate Change

2016 ◽  
Vol 9 (1) ◽  
pp. 245 ◽  
Author(s):  
Yongbo Liu ◽  
Wanhong Yang ◽  
Chengzhi Qin ◽  
Axing Zhu
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Best Management Practices ◽  
Water Conservation ◽  
Management Practices ◽  
Global Climate ◽  
Spatiotemporal Pattern ◽  
Best Management ◽  
Challenges And Opportunities ◽  
Negative Impacts

<p>Understanding the impacts of global climate change on the spatiotemporal pattern of hydrologic cycle and water resources is of major importance in highly developed watersheds all over the world. These impacts are strongly dependent on related changes in intensity and frequency of extreme climate events. Implementation of Best Management Practices (BMPs) and policy approaches at watershed and regional scales is essential for mitigating their negative impacts on soil and water conservation, and sustainable economic development. However, the uncertainty of BMP effectiveness including increasing variability of future water supply and changing magnitudes of nonpoint source pollution has to be accounted for in watershed planning and management. This paper provides a review and discussion on the impacts of global climate change on BMP’s hydrologic performance, the current progress on hydrologic assessment of BMPs, as well as the existing problems and countermeasures. Research challenges and opportunities in the field of hydrologic assessment of BMPs under global climate change are also discussed in this paper.</p>

scholarly journals Economic Analysis of Climate Change Best Management Practices in Vermont Agriculture

Agriculture ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 879-900 ◽  
Author(s):  
Alexander Helling ◽  
David Conner ◽  
Sarah Heiss ◽  
Linda Berlin
Keyword(s):  
Climate Change ◽  
Economic Analysis ◽  
Best Management Practices ◽  
Management Practices ◽  
Best Management

Effectiveness of Best Management Practices with Changing Climate in a Maryland Watershed

2017 ◽  
Vol 60 (3) ◽  
pp. 769-782 ◽  
Author(s):  
Jaison Renkenberger ◽  
Hubert Montas ◽  
Paul T. Leisnham ◽  
Victoria Chanse ◽  
Adel Shirmohammadi ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Chesapeake Bay ◽  
Best Management Practices ◽  
Management Practices ◽  
Future Climate ◽  
Annual Rainfall ◽  
Best Management ◽  
Current Climate ◽  
The U.S

Abstract. The potential impacts of climate change on BMP effectiveness were investigated using SWAT simulations for an agricultural watershed that drains into the Chesapeake Bay in the U.S. Northeast climate region. Critical source areas (CSAs) for sediments, nitrogen, and phosphorus, identified for current and future climate (SRES scenarios A1B and A2), were classified by density to support BMP prioritization schemes. BMPs were designed for these CSAs and tested against current and future climate using SWAT simulations to evaluate their robustness. A second set of BMPs was designed by optimization for all agricultural and urban lands in the study watershed and was similarly tested for robustness. In both cases, the design goal was for the watershed’s water quality response to meet the bay TMDLs once BMPs were implemented. Results indicated that density 2 and 3 CSAs (hotspots exporting excess amounts of 2 or 3 constituents) may be good prioritization targets, but reaching the bay TMDLs would still require targeting all CSAs. BMPs designed for CSAs under current climate were effective to reach bay TMDLs under current climate but not under scenarios A1B and A2. BMPs designed for CSAs under scenario A2 were effective to reach the bay TMDLs under all climates, except for nitrogen under A2. Similarly, BMPs optimized for agricultural and urban lands, when designed for current climate, were effective in meeting TMDLs for current climate only. Optimizing these BMPs for future climate produced a design that met TMDLs under both current and future climates, except for nitrogen with future climate. However, in this case, the nitrogen TMDL was exceeded by a smaller amount than in the CSA design. It was concluded that, in the U.S. Northeast, BMPs designed to remediate water quality problems under current climate will be insufficient to maintain water quality with climate change. Increased annual rainfall and storm intensity will increase the proportion of watershed area needing BMPs, and current hotspots will generate excess amounts of new constituents that will require re-design of existing BMPs. Community-based participatory strategies will likely be required to foster BMP adoption and sustain water quality gains in the Chesapeake Bay region. Keywords: BMPs, Best management practices, Climate change, NPS pollution, SWAT model, Water quality, Watershed hydrology.

scholarly journals Best Management Practices for the Transition to a Water-Sensitive City in the South of Portugal

2021 ◽  
Vol 13 (5) ◽  
pp. 2983
Author(s):  
Miguel Rodrigues ◽  
Carla Antunes
Keyword(s):  
Climate Change ◽  
Best Management Practices ◽  
Management Practices ◽  
Rainwater Harvesting ◽  
Water Cycle ◽  
Source Control ◽  
Urban Water ◽  
The South ◽  
Adaptation To Climate Change ◽  
Best Management

The uncertainty that arises from future environmental and climatic challenges requires new approaches towards urban water management in Mediterranean cities. In this work, an urban water cycle (UWC) strategy based on the best management practices (BMPs) of water-sensitive urban design (WSUD) is proposed for the transition of a coastal city in the south of Portugal into a water-sensitive city (WSC), in line with the Municipal Strategy for Climate Change Adaptation of Loulé (EMAAC of Loulé). The city’s watershed was identified using the ArcMap Hydrology toolset with geospatial data provided by Loulé’s Municipal Council Operational Unit for Adaptation to Climate Change and Circular Economy (UOACEC). A broad characterisation of the study area was conducted, identifying existing resources to further develop a SWOT (strengths, weaknesses, opportunities, threats) analysis. The Hydrology toolset outputs, precipitation events records, and survey results were used to identify flood-prone areas. The opportunities and threats identified were further used to develop the transition strategy, which is focused on critical areas identified and supported by BMPs, including source control, attenuation, treatment and infiltration measures, permeable pavements, rainwater harvesting systems, and bioretention basins. The approach is designed to increase the city’s resilience to climate extremes, as well as community engagement towards UWC management.

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