Efficient allocation of agricultural land and water resources for soil environment protection using a mixed optimization-simulation approach under uncertainty

Geoderma ◽  
2019 ◽  
Vol 353 ◽  
pp. 55-69 ◽  
Author(s):  
Mo Li ◽  
Jiang Li ◽  
Vijay P. Singh ◽  
Qiang Fu ◽  
Dong Liu ◽  
...  
Keyword(s):  
Water Resources ◽  
Agricultural Land ◽  
Efficient Allocation ◽  
Environment Protection ◽  
Simulation Approach ◽  
Soil Environment ◽  
Optimization Simulation ◽  
Mixed Optimization

Impact of metals bioleaching on the nutrient value of biological nutrient removal biosolids

1999 ◽  
Vol 39 (6) ◽  
pp. 175-181 ◽  
Author(s):  
Abdallah Shanableh ◽  
Pushpa Ginige
Keyword(s):  
Heavy Metals ◽  
Nutrient Removal ◽  
Organic Contaminants ◽  
Agricultural Land ◽  
Land Application ◽  
Biological Nutrient Removal ◽  
Environment Protection ◽  
Toxic Heavy Metals ◽  
Beneficial Use ◽  
Nutrient Value

The biosolids industry in Australia is evolving around the beneficial use of biosolids as a resource. Phosphorus rich biosolids from biological nutrient removal (BNR) facilities are highly desirable for land application. However, the accumulation of toxic heavy metals and industrial organic contaminants may render the biosolids unsuitable for land application. The presence of toxic heavy metals has been identified by Local Authorities in Australia as a major constraint limiting the beneficial use of biosolids. The potential of off-site contamination due to the migration of nutrients is also a major concern especially when applying biosolids to acidic agricultural land. Accordingly, the relevant environment protection and conservation agencies are involved in either developing or finalising guidelines to control the beneficial use of biosolids products. Metals bioleaching is a process achieved through bio-acidification. Bio-acidification of biosolids prior to land application can be used to dissolve and remove a significant fraction of the heavy metals content of the product. However, the process also reduces the nutrients content of the resource. Bio-acidification of Loganholme (Queensland) BNR biosolids dissolved 76% of the total phosphorus and 38% of the TKN. The heavy metals solubilisation results reached 50% for Cr, 79% for Ni, 45% for Zn, 24% for Cu, 30% for Cd, and 82% for Pb.

scholarly journals Equitable Allocation of Blue and Green Water Footprints Based on Land-Use Types: A Case Study of the Yangtze River Economic Belt

2018 ◽  
Vol 10 (10) ◽  
pp. 3556 ◽  
Author(s):  
Gang Liu ◽  
Lu Shi ◽  
Kevin Li
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Agricultural Land ◽  
Optimal Allocation ◽  
Water Footprint ◽  
Agricultural Water ◽  
Land Area ◽  
Lexicographic Optimization ◽  
The Impact

This paper develops a lexicographic optimization model to allocate agricultural and non-agricultural water footprints by using the land area as the influencing factor. An index known as the water-footprint-land density (WFLD) index is then put forward to assess the impact and equity of the resulting allocation scheme. Subsequently, the proposed model is applied to a case study allocating water resources for the 11 provinces and municipalities in the Yangtze River Economic Belt (YREB). The objective is to achieve equitable spatial allocation of water resources from a water footprint perspective. Based on the statistical data in 2013, this approach starts with a proper accounting for water footprints in the 11 YREB provinces. We then determined an optimal allocation of water footprints by using the proposed lexicographic optimization approach from a land area angle. Lastly, we analyzed how different types of land uses contribute to allocation equity and we discuss policy changes to implement the optimal allocation schemes in the YREB. Analytical results show that: (1) the optimized agricultural and non-agricultural water footprints decrease from the current levels for each province across the YREB, but this decrease shows a heterogeneous pattern; (2) the WFLD of 11 YREB provinces all decline after optimization with the largest decline in Shanghai and the smallest decline in Sichuan; and (3) the impact of agricultural land on the allocation of agricultural water footprints is mainly reflected in the land use structure of three land types including arable land, forest land, and grassland. The different land use structures in the upstream, midstream, and downstream regions lead to the spatial heterogeneity of the optimized agricultural water footprints in the three YREB segments; (4) In addition to the non-agricultural land area, different regional industrial structures are the main reason for the spatial heterogeneity of the optimized non-agricultural water footprints. Our water-footprint-based optimal water resources allocation scheme helps alleviate the water resources shortage pressure and achieve coordinated and balanced development in the YREB.

scholarly journals Human and Natural Impacts on the Water Resources in the Syr Darya River Basin, Central Asia

2019 ◽  
Vol 11 (11) ◽  
pp. 3084 ◽  
Author(s):  
Shan Zou ◽  
Abuduwaili Jilili ◽  
Weili Duan ◽  
Philippe Maeyer ◽  
Tim de Voorde
Keyword(s):  
Water Resources ◽  
Central Asia ◽  
River Basin ◽  
River Discharge ◽  
Water Resource Management ◽  
Agricultural Land ◽  
Sharp Decline ◽  
Essential Information ◽  
Effective Water ◽  
Syr Darya

Water resources are increasingly under stress in Central Asia because downstream countries are highly dependent on upstream countries. Water is essential for irrigation and is becoming scarcer due to climate change and human activities. Based on 20 hydrological stations, this study firstly analyzed the annual and seasonal spatial–temporal changes of the river discharges, precipitation, and temperature in the Syr Darya River Basin and then the possible relationships between these factors were detected. Finally, the potential reasons for the river discharge variations have been discussed. The results show that the river discharges in the upper stream of the basin had significantly risen from 1930 to 2006, mainly due to the increase in temperature (approximately 0.3 °C per decade), which accelerated the melting of glaciers, while it decreased in the middle and lower regions due to the rising irrigation. In the middle of the basin, the expansion of the construction land (128.83 km2/year) and agricultural land (66.68 km2/year) from 1992 to 2015 has significantly augmented the water consumption. The operations of reservoirs and irrigation canals significantly intercepted the river discharge from the upper streams, causing a sharp decline in the river discharges in the middle and lower reaches of the Syr Darya River in 1973. The outcomes obtained from this study allowed us to understand the changes in the river discharges and provided essential information for effective water resource management in the Syr Darya River Basin.

scholarly journals A multi-objective optimization-simulation approach for real time rescheduling in dense railway systems

2020 ◽  
Vol 286 (2) ◽  
pp. 662-672 ◽  
Author(s):  
Estelle Altazin ◽  
Stéphane Dauzère-Pérès ◽  
François Ramond ◽  
Sabine Tréfond
Keyword(s):  
Real Time ◽  
Simulation Approach ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Railway Systems ◽  
Optimization Simulation

Precipitation trends and ruptures effect on catchment hydrology and water resources availability for agricultural lands under climate change

2020 ◽  
Author(s):  
Youness Hrour ◽  
Zahra Thomas ◽  
Ophélie Fovet ◽  
Pauline Rousseau-Gueutin ◽  
Pascal Pichelin ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Groundwater Recharge ◽  
Agricultural Land ◽  
Catchment Hydrology ◽  
Agricultural Adaptation ◽  
Stream Discharge ◽  
Precipitation Indices ◽  
The Impact ◽  
Precipitation Trends

<p>Water resources depletion under climate change is a major concern over the world. Mediterranean countries are deeply affected by changes in precipitation intensity, duration and frequency. Such changes lead to decrease in the averaged stream discharge and groundwater recharge consequently decreasing water resources availability. Our research focused on a case study performed in the Loukkos catchment, draining an area of 3730 km², located in the north of Morocco. Trend analysis of 8 to 62 years of precipitations was conducted based on statistical tests at about ten stations over the catchment. 20 to 70 years of temperature and discharge data were also analyzed. The time series were investigated using several non-parametric tests in order to characterize trends, to track down changes and their effect on agricultural land changes at the catchment scale. The present study highlights the impact of climate and catchment hydrology on agricultural practices and water resources used for irrigation. Analysis of precipitation indices showed that the temporal distribution of precipitation in the study area has changed since the 1970s. This change results from a reduction in precipitation, a shift in the hydrological year and a reduction in the number of wet days per year. Severe drought periods appear after the climatic rupture, which occurred around 1971. An increase in the intensity and frequency of droughts, in addition to an increase in the annual and seasonal average temperature (more than 1°C) were observed. Such changes contributed to agricultural practice modifications, with development of irrigated agriculture and later sowing period to adapt to the delay in the onset of the rains. For the future, the use of IPCC/CMIP5 climate projections for the Mediterranean region will help to evaluate how the precipitation indices will evolve. The impact of irrigation on stream discharge and groundwater recharge needs to be considered through agro-hydrological modeling including agricultural trajectory. Such tools will help to strengthen agricultural adaptation strategies and promote resilient farming practices.</p><p>Keywords: Precipitation trends, agricultural land use, water use for irrigation, agricultural adaptation strategies.</p><p> </p>

Good water governance and IWRM in Zambia: challenges and chances

Water Policy ◽  
2011 ◽  
Vol 13 (6) ◽  
pp. 845-862 ◽  
Author(s):  
Thomas Uhlendahl ◽  
Pritam Salian ◽  
Claudia Casarotto ◽  
Jakob Doetsch
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Policy ◽  
Agricultural Land ◽  
Water Governance ◽  
Local Level ◽  
Integrated Water Resources Management ◽  
Water Sector ◽  
Resources Management ◽  
Hydropower Production

The implementation of principles for water governance is widely accepted but challenging for the whole water sector of a developing country like Zambia, because of the legal and administrative changes and organizational requirements involved. In February 2010, a revised water policy for Zambia was approved by the Cabinet. The revised National Water Policy 2010 aims to improve water resources management by establishing institutional coordination and by defining roles as well as responsibilities for various ministries. Taking into account the previous political and administration changes, this paper points out the problems and challenges of the implementation of good water governance mechanisms in Zambia. Focusing on the Kafue River Basin, from which water is abstracted for a variety of conflicting purposes (like municipal supplies, industrial use, mining, irrigation of agricultural land, fishery activities, wetland reserves and hydropower production), the gaps in implementing good water governance and Integrated Water Resources Management (IWRM) in Zambia are identified, as well as the factors causing these gaps in the Zambian water sector. The paper finishes with a overview of the opportunities given by the new water policy through Water User Associations (WUAs) at a local level.

scholarly journals Degradation of water quality: the case of plain west of Annaba (northeast Algeria)

2016 ◽  
Vol 31 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Badra Attoui ◽  
Nabila Toumi ◽  
Saloua Messaoudi ◽  
Samia Benrabah
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Economic Crisis ◽  
Industrial Pollution ◽  
Agricultural Land ◽  
Industrial Wastes ◽  
Chemical Fertilizers ◽  
Pollution Problem ◽  
Intensive Use ◽  
The World

AbstractIn the world, the water quality is undergoing deterioration due to urban and industrial wastes, and intensive use of chemical fertilizers in agriculture. Unfortunately, as in most countries of the world, Algeria is experiencing a severe crisis of its environment apart from the problem of depletion of water resources. The plain west of Annaba is particularly subjected to a general industrial pollution. The pollution problem in this region has really started to become worrying not earlier than in 1980, when the economic crisis has led some industrial units to sacrifice the “Environment” criterion for the benefit of the production. We were particularly interested in this work in waters of the superficial aquifer and wadis like Boudjemaa, Bouhdid, Sidi Harb, and Forcha whose waters are most often used to irrigate the surrounding agricultural land. Comparison of analytical results from two periods – 2006–2016 for the: EC, pH, Ca2+, Mg2+, Cl−, NO2 and 2006–2010 for the: Fe, Cr, Cu2+, Pb+ show a degradation of water quality in this region, which represents a very vulnerable area with a risk to pollution of groundwater.

scholarly journals The legal protection of environment in ancient Rome

2020 ◽  
Vol 15 (29) ◽  
pp. 199-216
Author(s):  
Pál Sáry
Keyword(s):  
Water Pollution ◽  
Agricultural Land ◽  
Good Condition ◽  
Legal Protection ◽  
Roman Law ◽  
Ancient Rome ◽  
Environment Protection ◽  
Animal Protection ◽  
Legal Rules ◽  
Private And Public

The paper wants to give an overview of the moral and legal rules which protected the natural and built environment in ancient Rome. These rules prove that environment protection is not a modern invention. A bonus et diligens pater familias was morally obliged to cultivate his own agricultural land carefully. Both air and water pollution was legally sanctioned. A house-owner had to keep his own building in good condition. Each person was to keep the street outside his own house in repair and clean. Demolition of both private and public buildings was strictly restricted. It is true that in ancient Rome environment protection was not full scope (e.g., animal protection was absent from Roman law), but many elements of environment were legally protected.

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