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>

Diatoms in Saline Lakes Paleoclimate and Paleoecology Interpretations

2007 ◽  
Vol 13 ◽  
pp. 149-168 ◽  
Author(s):  
Erik J. Ekdahl
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Global Climate Change ◽  
Water Conservation ◽  
Environmental Changes ◽  
Global Climate ◽  
Light Availability ◽  
Ionic Concentration ◽  
Mitigation Strategies ◽  
Environmental Response

Average global temperatures are predicted to rise over the next century and changes in precipitation, humidity, and drought frequency will likely accompany this global warming. Understanding associated changes in continental precipitation and temperature patterns in response to global change is an important component of long-range environmental planning. For example, agricultural management plans that account for decreased precipitation over time will be less susceptible to the effects of drought through implementation of water conservation techniques.A detailed understanding of environmental response to past climate change is key to understanding environmental changes associated with global climate change. To this end, diatoms are sensitive to a variety of limnologic parameters, including nutrient concentration, light availability, and the ionic concentration and composition of the waters that they live in (e.g. salinity). Diatoms from numerous environments have been used to reconstruct paleosalinity levels, which in turn have been used as a proxy records for regional and local paleoprecipitation. Long-term records of salinity or paleoprecipitation are valuable in reconstructing Quaternary paleoclimate, and are important in terms of developing mitigation strategies for future global climate change. High-resolution paleoclimate records are also important in groundtruthing global climate simulations, especially in regions where the consequences of global warming may be severe.

scholarly journals The Effects of Soil Drying Out and Rewetting on Nitrogen and Carbon Leaching—Results of a Long-Term Lysimeter Experiment

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2601
Author(s):  
Holger Rupp ◽  
Nadine Tauchnitz ◽  
Ralph Meissner
Keyword(s):  
Climate Change ◽  
Best Management Practices ◽  
Management Practices ◽  
Global Climate ◽  
Significant Risk ◽  
Climatic Conditions ◽  
Leaching Losses ◽  
Lysimeter Experiment ◽  
Nitrogen Concentrations ◽  
Northeastern Germany

As a result of global climate change, heavy rainfall events and dry periods are increasingly occurring in Germany, with consequences for the water and solute balance of soils to be expected. The effects of climate change on nitrogen and carbon leaching were investigated using 21 non-weighable manually filled lysimeters of the UFZ lysimeter facility Falkenberg, which have been managed since 1991 according to the principles of the best management practices and organic farming. Based on a 29-year dataset (precipitation, evaporation, leachate, nitrate and dissolved organic carbon concentrations), the lysimeter years 1995/96, 2018/19, and 2003/04 were identified as extremely dry years. Under the climatic conditions in northeastern Germany, seepage fluxes were disrupted in these dry years. The reoccurrence of seepage was associated with exceptionally high nitrogen concentrations and leaching losses, which exceeded the current drinking water limits by many times and may result in a significant risk to water quality. In contrast, increased DOC leaching losses occurred primarily as a result of increased seepage fluxes.

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

scholarly journals Best management practices for erosion and sedimentation control of The Sermo Watershed

2021 ◽  
Vol 930 (1) ◽  
pp. 012068
Author(s):  
A A Rofikha ◽  
Y Saputra ◽  
F A Islami
Keyword(s):  
Best Management Practices ◽  
Water Conservation ◽  
Management Practices ◽  
Soil Stability ◽  
Sedimentation Rates ◽  
Sediment Control ◽  
Best Management ◽  
High Sedimentation ◽  
Calculation Results ◽  
High Level

Abstract Erosion and sedimentation problems caused by human activities disturbed the primary conditions of the watershed. This situation was also influenced by significant hydrometeorological shifts and high rainfall, which increased soil erosion. These inclement watershed conditions resulted in high sedimentation rates and caused severe problems for the quality and quantity of water in the reservoir. This study aims to solve the Sermo watershed problems by calculating the value of erosion and sedimentation, then providing a solution to deal with these problems in the form of Best Management Practices (BMP). This research used a USLE method to calculate the erosion and sedimentation rate. The calculation results showed that 40.86% of Sermo Reservoir within 809.12 hectares was classified as a high level of erosion. Further recommendations for overcoming this condition were made by referring to BMP for erosion and sediment control, including structures and soil water conservation. Further recommendations to address this condition were made regarding BMP for controlling water, maintaining soil stability, controlling sedimentation, and managing and maintaining optimal watersheds.

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