Consumption Of Water Resources Research Articles

Coproprevalence, seroprevalence, and geographic distribution of Fasciola spp. infection in beef and dairy cattle in Pak Chong highland, Nakhon-Ratchasima Province, Northeast Thailand

Fasciola spp. is a major livestock parasite, especially in cattle, water buffalo, sheep, and goats. Infection reduces animal productivity, e.g., meat, dairy, wool and might cause death. In Thailand, reports of Fasciola spp. infection in livestock, especially dairy and beef cattle, are sparse. Pakchong district in Nakhon Ratchasima province is one of Thailand's largest farming areas for dairy and beef cattle, but the prevalence of Fasciola spp. infection has never been reported in this district. The landscape of this area is mainly a hilltop plateau with many water sources suitable for the development of lymnaeid snails, the intermediate host of Fasciola spp., which are essential for the parasite life cycle. This study surveyed the copro- and seroprevalence of Fasciola spp. infection in dairy and beef cattle farmed in Pakchong district by microscope-based examination, PCR, and indirect ELISA. Associated risk factors and geographic information data were collected and analyzed. Paired stool and serum samples were collected from 102 dairy cattle and 99 beef cattle from April to November 2021. Sample analyses demonstrated a high prevalence of Fasciola spp. infection, especially in beef cattle. The overall copro-prevalence was 5.97%, with 0.99% in dairy cattle and 11.11% in beef cattle. The overall seroprevalence was 23.88%, with 2.94% in dairy cattle and 45.45% in beef cattle. Moreover, the data indicated that infection status was not correlated with animal sex and age whereas consumption of natural grasses, water resources, housing floor, and farming system were significant risk factors. Data analysis by a geographic information system (GIS) demonstrated that an associated risk could be farmed in lowering areas, especially in Chan Thuck, Nong Sa Rai, and Khlong Muang subdistricts. In conclusion, this study reports the prevalence of Fasciola spp. infection in cattle in a major farming area of Thailand which could be beneficial for designing parasite control policies in this region as well as adapting this knowledge to other Fasciola spp. endemic areas.

Information asymmetry in the graph model of conflict resolution and its application to the sustainable water resource utilization conflict in Niangziguan Springs Basin

With the increasing consumption of global water resources, research on sustainable water resource utilization has become a topic of urgent interest. Despite the promulgation of policies and laws on the protection of water resources, the sustainable utilization and development of water resources in China are still far from reaching their initially established targets. This is partly explained by real-life conflicts that arise, in which different decision makers (DMs) possess different levels of professional knowledge, social status, and even power in contexts where the parties’ ability to leverage information varies greatly. Sustainable water resource utilization conflicts between the government and factories exemplify the impact of this information asymmetry on the relationship between DMs for the purposes of conflict resolution. In this paper, it is assumed that if one DM in a conflict has more information, their information advantage will affect the policy formation of the other DM. Thus, to analyze and resolve relevant problems, the concept of information asymmetry between two DMs is integrated into the basic structure of the graph model for conflict resolution (GMCR). According to the mathematical expression of the information asymmetry preferences of DMs, a set of information asymmetry stability definitions can be introduced to determine the stable state for each DM. The sustainable water resource utilization conflict in Niangziguan Springs Basin is used as an exemplar to confirm the effectiveness and correctness of the proposed method. Stability analysis shows that when the government implements strict environmental policies by leveraging more information, factories should adjust their preference relations to follow the rules and regulations to protect water resource in practice. Finally, comprehensive sustainable utilization and development of natural resource mechanisms must be implemented not only for these factories but also for other industries in China.

Vegetation restoration in dryland with shrub serves as a carbon sink: Evidence from a 13‐year observation at the Tengger Desert of Northern China

AbstractDryland area accounts for approximately 40% of worldwide land area, which plays a significant role in regulating the carbon sequestration capacity of land. Vegetation restoration in drylands adopted to prevent land degradation, and may also serve as a carbon sink in the earlier stage. However, the persistence of the carbon sink for the revegetated ecosystem in drylands is still unknown. Can the well‐established restoration vegetation in dryland areas serve as a carbon sink in long‐run? To address this question, we investigated the carbon sequestration capacity of planted vegetation in dryland areas with 13 years of observation (2009–2021) for established vegetation restoration, which began in 1989. We found that the revegetation area serves as a carbon sink in all years. The mean annual net ecosystem productivity (NEP) is 91.61 ± 36.17 gC m−2 yr−1 (mean ± standard deviation). Annual NEP showed a significant increasing trend over the study period with a rate of 5.65 gC m−2 yr−1 yr−1 (p < 0.05). The increase in spring temperature, the earlier start of net carbon uptake and the longer duration of net carbon uptake contribute to the gradual trend of NEP. The amount of annual NEP is predominantly determined by summer precipitation. Meanwhile, our results revealed that the increase in net carbon uptake by revegetation did not lead to excessive consumption of water resources. Our results have suggested that appropriate vegetation restoration in arid areas can increase ecosystem carbon sequestration over longer timescales and mitigate climate change, with relatively low environmental consequences and risks. Considering the vast area of degraded land in the global drylands, the carbon sequestration effect of this model should be given more attention.

Coupling coordination of the water‒energy‒carbon system in three provinces of Northeastern China

Water resource consumption, energy consumption, and carbon emissions are key factors that restrict the level of regional development and affect the quality of the regional ecological environment. This study investigates three provinces in Northeastern China, using remote sensing and historical data from the period 2001–2019 to analyze the spatiotemporal trends of water and energy consumption, and carbon emissions. Using the AHP-entropy weight method, comprehensive analysis method, and system dynamics research method, the coupling relationships of the three subsystems (water‒energy‒carbon, WEC) were determined, and the development and changes over the next 20 years were simulated. The results show that: 1) Over the period 2001–2019, the comprehensive index of the WEC system in the three Northeastern provinces ranged from 0.0994 to 0.2314. 2) Over the period 2001–2019, the coupling degree of the WEC system in the three Northeastern provinces ranged from 0.9457 to 0.9985, equating to a high coupling stage level. However, the level of coupling coordination was low, with values ranging from 0.3151 to 0.4780, equating to a state of mild disorder or near disorder. 3) During the study period, water resource consumption, energy consumption, and carbon emissions all showed an increasing trend, with the former having the fastest growth rate. This study is of great significance for promoting the sustainable utilization of resources and green and low-carbon development in the three studied Northeastern provinces of China.

Hydrocarbon Potential and Reservoir Characteristics of Lacustrine Shale: A Case of Lower Jurassic in the Western Qaidam Basin, NW China

The Lower Jurassic lacustrine shale is well developed in the western Qaidam Basin and characterized by significant thickness and continuous distribution. Previous investigations have indicated its substantial potential as a shale gas resource. Based on experiments of organic carbon content, vitrinite reflectance, rock-eval pyrolysis, X-ray diffraction, and low-temperature nitrogen adsorption, the hydrocarbon potential and reservoir characteristics of Lower Jurassic lacustrine shale in the western Qaidam Basin were systematically analyzed. The results show that the total organic carbon (TOC) content ranges from 1.71% to 4.49%, with an average of 2.98%. The kerogen belongs to type II–III. The vitrinite reflectance (Ro) ranges from 1.05% to 1.95%, with an average of 1.62%, indicating that the kerogen has reached the high thermal maturity stage (gas window). The maximum pyrolysis peak temperature (Tmax) ranges from 408 °C to 580 °C, with an average of 498.38 °C, further supporting the high thermal maturity of the kerogen. The content of brittle minerals, including quartz, feldspar, pyrite, and carbonate, ranges from 21% to 44% (averaging 32.54%), which is comparable to shale minerals found in American Ohio shale. The pore structure of the shale is predominantly characterized by open parallel plate slit pores and inclined slit pores. The pore diameter distribution curve can be divided into two types, including unimodal distribution and bimodal distribution. Micropores and mesopores contribute significantly to the specific surface area, and mesopores account for the highest proportion of pore volume. The thermal evolution degree has a direct impact on pore development of shale reservoirs. The micropore, mesopore, macropore, and total pore volumes of lacustrine shale in the study area show a negative correlation with TOC content, indicating that the organic matter within the shale is probably still in the first pyrolysis stage. However, no significant correlation is observed between pore volume and clay mineral content or between pore volume and brittle mineral content due to the complex interplay of several geological factors. These findings contribute to a better understanding of the lacustrine shale gas resource potential and can guide future exploration and exploitation efforts. In addition, the systematic analysis of reservoir characteristics serves as a foundation for the introduction and exploration of new shale fracturing technologies, which is of great significance for reducing the consumption of water resources and mitigating potential geo-disasters.

Scheme simulation and predictive analysis of water environment carrying capacity in Shanxi Province based on system dynamics and DPSIR model

A key influence factor of sustainable regional development is the water environment carrying capacity (WECC), which is a prerequisite for ecological security and harmonious regional development. Utilizing the benefits of the dynamic analysis of system dynamics (SD) and the Driver-Pressure-State-Impact-Response (DPSIR) framework system, we constructed a water environment carrying capacity-system dynamics (WECC-SD) model and evaluation index system for Shanxi Province. Five possible future development schemes were designed to predict the changes in WECC from 2020 to 2030. Further, we analyzed the system coordination with the coupling coordination degree model. The results manifest that the comprehensive ranking of WECC under different schemes is: comprehensive scheme > water environment protection scheme > water conservation scheme > status quo scheme > economic development scheme. The economic development scheme performs the worst in WECC and coupling coordination performance, the water conservation and water environment protection schemes can both improve WECC to varying degrees but promote coordinated system development to a very limited extent, the comprehensive scheme can significantly improve WECC and system coordination and is the best strategy to realize the coordinated and steady development of regional economic activities and the water environment. In future development, economic development should be moderated on the premise that the quality of the water environment will gradually enhance and the consumption of water resources will continue to decline, so that a benign relationship between population – economy – water resources – water environment can be created and a steady increase in the level of coordinated regional development can be promoted. The study reveals complex impact relationships within the WECC system and informs the development of future regional planning and environmental policy.

Coordinated development of shale gas benefit exploitation and ecological environmental conservation in China: a mini review

The large-scale development and utilization of shale gas is significant for achieving the “Carbon Peak and Carbon Neutrality” goals. However, addressing the ecological environmental challenges stemming from extensive hydraulic fracturing is imperative. Drawing from the successful exploration and development of shale gas in the Sichuan Basin, this paper employs a bibliometric approach and utilizes the Web of Science database as its data source to review the impact of shale gas development on the ecological environment. Furthermore, effective strategies for achieving coordinated development of shale gas benefit exploitation and ecological environmental conservation in China are identified. The findings highlight that the ecological impact of shale gas development has been a major focus of research over the past decade, primarily involving concerns such as water resources consumption, groundwater pollution, methane emissions, and waste management. These challenges can be addressed by adopting measures such as responsible water usage, maintaining well integrity, proper storage and disposal of fracturing flowback fluids, and appropriate management of drilling solid waste. The key to achieving green and efficient shale gas development in China lies in constructing a solid theoretical framework for benefit exploitation, refining environmental management standards and regulations, and promoting the development of clean production technologies specific to shale gas. Additionally, establishing a distinct exploration and development theory and fostering technical innovation for deep shale gas (buried depth > 3500m) are pivotal for enhancing and stabilizing production in China. Clarifying the theoretical logic of benefit development and improving the environmental protection law of shale gas development are of great significance for realizing the scale benefit development of shale gas and the harmonious development of ecological environment in China.

Ecological Footprint of Different Culture Modes of Penaeus vannamei in Northern China

The rapid development of shrimp aquaculture has resulted in numerous ecological problems, thereby necessitating the assessment of its sustainable ecological development. This study employed the ecological footprint method to conduct a quantitative analysis of the environmental ramifications of two culture modes (pond and factory) of Penaeus vannamei. The analysis includes a horizontal comparison between two different modes and a vertical comparison among different aquaculture links of the same mode, with the objective of identifying the weak link in the aquaculture process. The results show that the ecological footprint per unit of profit of the factory culture mode was lower than that of the pond mode, while the ecological footprint per unit of output was higher in the former. Water resource consumption was identified as the primary component of the ecological footprint in both modes, accounting for over 70% of the total, followed by feed consumption. The higher energy consumption in the factory culture mode is ascribed to the operation of mass-production facilities. The feed conversion ratio in shrimp aquaculture requires improvement, as evidenced by a ratio of 1.05 in the pond mode and a higher ratio of 1.82 in the factory culture mode, indicating suboptimal feed utilization efficiency. In light of these conclusions, various measures and suggestions are put forth, including improving shrimp feed composition, implementing energy-saving measures, weighing production planning across different culture modes, and optimizing water resource utilization.

Evaluation of water-energy-food-environment-agricultural economic growth nexus integrated approach to achieve sustainable production.

Today, growing the production of the agricultural sector in order to meet the increasing demand of food is happening through excessive consumption of water resources, energy, chemical fertilizers, and pesticides, especially in developing countries. Therefore, the present study aims to design a new approach for sustainable management of resources and realization of clean production in the agricultural sector. In order to design the new approach of the present study, the integration of two concepts of water-energy-food (WEF) nexus and decoupling pollution-agricultural growth (DEC) was used. The proposed approach is modeled through the multi-objective programming model by optimizing the WEF and DEC indices, which is the first research effort in this field. In this regard, the performance of this approach was evaluated in Jiroft County in Kerman province, Iran. The results of the study showed that the consumption of chemical fertilizers and pesticides in the optimal pattern with the simultaneous provision of WEF and gross margin (GM) goals (optimal 1) is about 110 kg and 0.19 l per hectare, respectively, more than the proposed pattern (optimal 3). On the other hand, the consumption of water and energy resources in the optimal pattern with the simultaneous provision of DEC and GM goals (optimal 2) is about 8785 cubic meters and 1108 MJ per hectare more than the proposed pattern (optimal 3), respectively. Therefore, this approach, due to the simultaneous integration of two concepts of sustainable development in the agricultural sector, can overcome the weakness of the WEF nexus in not paying attention to the issues of environmental pollution affected by the use of chemical inputs and the weakness of separating pollution-agricultural growth in not paying attention to the management of water and energy resources in the agricultural sector.

Spatio-temporal dynamics of water storage across Northwest China over the past four decades

Study regionThe Northwest inland basins of China (NWC). Study focusTerrestrial water resources, especially groundwater resources, are the main source of water for human activities and for maintaining the stability of the ecological environment in NWC. Excessive consumption of water resources will seriously affect the sustainable utilization of water resources and ecological security in this region. Therefore, it is urgent to clarify the long-term changes in water storage in this area in order to handle the pressure of future water resources and the natural environment. Using GRACE satellite datasets and global hydrological models (GHMs) products, this study analyzed spatiotemporal variations in terrestrial water storage anomalies (TWSA), groundwater storage anomalies (GWSA), soil moisture, snow water equivalent, and canopy interception combined anomalies (SSCA) in NWC through the application of the water balance, trend decomposition, and empirical orthogonal decomposition methods. Furthermore, the driving factors of water storage change and feasible water resource management strategies were discussed. New hydrological insights for the regionTWSA in the NWC has experienced a continuous decline over the past nearly 40 years, while SSCA has shown a weak increasing trend (0.03 cm yr-1). Since the availability of glacial retreat data (2003–2016), glacial water storage in the NWC has decreased by 0.09 cm per year, while TWSA, SSCA, and GWSA have changed at rates of − 0.25, 0.02, and − 0.18 cm yr-1, respectively. The North Tianshan Rivers Basin has become one of the areas with the most severe groundwater depletion in China. 2005–2010 was a turning period in the changes of TWSA, followed by widespread water loss across the NWC. Glacier and snow melt are the most important factors for the decline of TWSA in the Tianshan mountains area, and over-exploitation of groundwater by human activities is a secondary factor. For other regions, Groundwater losses remain the most significant contributor to TWSA losses. The massive loss of water storage in the Tianshan Mountains area, especially the accelerated retreat of glaciers, will affect the stable water supply to the middle and lower reaches of the oasis region, perhaps leading to increased groundwater extraction, which will threaten regional water security and sustainable development. Developing a water-saving society and implementing inter-basin water transfer are feasible ways to alleviate the water resource crisis. Conducting a comprehensive analysis of all inland rivers in China helps to facilitate horizontal comparisons between various basins, thereby providing more comprehensive insights of water storage fluctuations. The data on water storage changes, extending back to 1980, provide a longer-term perspective on water resource changes in the region, which can contribute to enhancing water resource security and ecological environmental protection.

Green innovative economy remodeling based on economic complexity

In this article, we propose a model of innovative economy remodeling, which aims to increase economic complexity by developing and investing in the green economy. We create this model for example of a transitional economy, which is the economy of Ukraine. For a comprehensive statistical analysis of the share of natural and energy resources in individual sectors of the economy, data on intermediate consumer costs from the first quadrant of the Input-Output table (Leontief model) were used for the first time. In this way, the most resource-intensive sectors of the economy and those that require investment in innovative technologies of green business are identified. The following sectors have the highest shares in the consumption of natural and water resources: C – Production; D – Electricity, gas, steam and air conditioning supply; E - Water supply; sewerage, waste management and remediation activities. In these sectors, first of all, implementing modern (knowledge-rich) green technologies should take place, which will reduce the consumption of natural and water resources. The proposed model can serve as a justification for the choice of investment directions in the remodeling of other economies in the transition period.

Water Footprint Analysis of Sheep and Goat from Various Production Systems in Northern China

Water scarcity is a significant global problem. Considerable water resources are consumed in the production of livestock and poultry products, thus posing a huge challenge to global freshwater resources. Sheep meat has the second highest water footprint among livestock meat products. Furthermore, as the demand for sheep meat increases on a year by year basis, water consumption continues to rise as a result. In order to make better informed decisions around water management, it is necessary to estimate the water footprint of animal husbandry. This study offers a comprehensive overview of the water footprint of sheep in Northern China. It analyzes the water footprint of feed production and virtual water using CROPWAT, based on the water footprint of sheep and goats in Shanxi under different production systems and feed components. The water footprint was calculated to be 6.03 m3/kg for sheep and 5.05 m3/kg for goats, respectively. Therefore, the water footprint of three farming modes, including grazing mixed and industrial in the Shanxi region was slightly higher than what other experts have evaluated for China. These data provide crucial information that can help reduce water resource consumption in animal husbandry and contribute to the development of sustainable strategies.

Smart Water Harvesting System Using IoT

With the alarming rate of consumption of water resources in today’s world, water scarcity has become more prominent than ever. Harvesting rainwater is an area frequently tread upon but the concept of smart rainwater harvesting has only come in the form of ideas, not executions. We present an IoT-based solution aimed at addressing the need for monitoring water quality and facilitating water provision. This study showcases a strategy for rainwater collection in rural regions alongside an IoT framework designed for monitoring water quality and quantity. Sensor-derived data are accessible in real-time through a dedicated website interface. The system architecture incorporates an Arduino microcontroller as the central unit, coupled with various sensors including water level, pH, and water flow sensors. Data acquired from these sensors are processed by the microcontroller and transmitted to the cloud via a wireless connectivity module.

Characteristics and propagation of meteorological and hydrological droughts in eastern Gansu, a typical semi‐arid region, China

AbstractThe meteorological drought (MD) is the precursor of the hydrological drought (HD), and understanding the propagation process from MD to HD is of great significance for the early warning of HD. Based on the theory of run and Bayesian networks, this study uses the standardized precipitation index (SPI), standardized precipitation evapotranspiration index (SPEI) and standardized streamflow index (SSI) to explore the characteristics and propagation of MD and HD in the regions of eastern Gansu, China. The results indicate that: (1) The region was mainly wet (dry) and the wetness (dryness) was stronger before (after) 2000 when reflected by SSI. The frequency is higher based on SPI and SPEI than that based on SSI, while the duration and magnitude are lower than those based on SSI. (2) The propagation time from MD to HD is generally within 1–10 months. After the occurrence of a certain level of MD, it is most likely to propagate to HD events that are relatively weaker than the MD. Besides, the higher the intensity level of MD, the shorter the propagation time to HD, and the shorter for cumulative occurrence probability of HD to approach 1.0. (3) The increase in temperature and decrease in precipitation, runoff and runoff coefficient may contribute to the dryness after 2000. Moreover, the weakened propagation from MD to HD may be due to the rapid increase of water resource consumption caused by intensive anthropogenic activities in the study area. From the above results, this study found some propagation characteristics from MD to HD in a semi‐arid and semi‐humid watershed, which can provide a supplement for revealing the drought mechanism and can assist in the management and planning of water resources in China.

Scenario simulation and comprehensive assessment of water footprint sustainability system in Heilongjiang Province, China: A model combining system dynamics with improved radar chart approach

With population and economic growth, coupled with the problem of limited water resources, having led to widespread problems like water scarcity with aquatic pollution, exploring the impacts of water exploitation with usage on the environment, society, and economy is important for achieving regional sustainability goals. In order to analyze the impact of different water resources utilization policy scenarios on water footprint (WF) environmental sustainability, WF economic sustainability, WF social sustainability, and scenario optimization, this study employed a system dynamics approach to build a water footprint sustainability (WFS) system under six future scenarios: status quo (S1), open-source throttling (S2), pollution reduction (S3), agricultural development (S4), socioeconomic development (S5), and comprehensive (S6). Additionally, the dynamic effects of different future scenarios on the environmental sustainability, economic sustainability and social sustainability of regional WF were comparatively analyzed. The improved radar chart approach was applied to calculate the comprehensive assessment values under the different scenarios to select the optimal scenario. The results revealed that compared with scenario S1, scenarios S2 and S3 reduced the consumption and pollution of water resources, whereas scenarios S4, S5, and S6 promoted agricultural and socio-economic development, however, scenarios S4, S5, and S6 were not conducive to solving water shortage and pollution problems. Under the six scenarios, the environmental sustainability and social sustainability of WF would deteriorate, and the economic sustainability would continue to improve. Six scenarios have varying effects on the regional WFS. The comprehensive evaluation value for scenario S6 was the largest, and was much higher than that under scenario S1, indicating that the scenario S6 was the optimal scenario for improving the WFS and realizing the coordinated development of regional water resources and social economy. The findings of this study afforded a scientific foundation for achieving regional sustainable evolution and ensuring water security.

Environmental Impact Analysis of Functional Retrofitting Measures in Buildings

A large number of existing building stock in India was built before the implementation of government guidelines mandating the Green Building Codes. These buildings have been operating with various inefficiencies pertaining to their resource consumption and emissions. Literature suggests that the option of functional retrofitting of building has a potential to reduce this inefficiency by up to 50%. This paper investigates this potential by analysing actual cases of functional retrofitting of buildings (for achieving greater operational efficiency) in Indian context. The environmental impact analysis in this study includes the impact categories of primary energy demand, global warming potential, abiotic depletion potential, ozone depletion potential and water resource consumption for both pre-retrofit and post-retrofit scenario of building. The results are then correlated to the initial cost of functional retrofitting for each case in order to identify the inter-relationship and trend with respect to the level of intervention opted for the cases.

The Importance of Rainwater Harvesting and Its Usage Possibilities: Antalya Example (Turkey)

The significance and effective use of water, one of the most basic requirements for sustaining vital activities, is gaining importance every day. Population growth and unprogrammed industrialization accelerate the consumption of available water resources. However, drought, as a result of climate change, poses a threat to water resources. Factors such as the exhaustibility of water resources, rapid population growth, unscheduled industrialization and drought increase the tendency towards alternative water resources. Rainwater harvesting is based on the principle of using the rainwater falling into the regions after it is stored. Water collected through rain harvesting can be utilized in many different areas, such as agricultural irrigation, landscape irrigation and domestic use. Among agricultural activities, the idea of water harvesting in greenhouse areas comes to the fore. Due to the gutters on the greenhouse roofs, water can be stored. In Antalya, which has about half of the greenhouses in Turkey, the amount of water in the rain harvest that can be obtained in greenhouses is 224,992,795.8 m3 per year. Monthly calculations throughout the year showed that the minimum water can be harvested in August (938,447.53 m3) and the maximum (54,771,210 m3) in December. Therefore, it is thought that some plant water consumption can be met by building sufficient storage in areas close to the greenhouse.

Dissipation and movement of soil water in artificial forest in arid oasis areas: Cognition based on stable isotopes

Large-scale construction of artificial forests in arid oasis areas plays a role in wind prevention and sand fixation, vegetation increase and landscape improvement. However, due to the extremely strong evapotranspiration in the arid areas, the construction of artificial forests may greatly increase the consumption of water resources. Therefore, it is necessary to evaluate and weigh the benefits of its ecology, landscape and water resource utilization. Based on different water isotopic data (soil water, precipitation) and related hydrometeorological data of typical poplar plantation in the middle and lower reaches of Shiyang River Basin from 2018 to 2019, this study evaluated the soil evaporation loss rate and water storage capacity of artificial forest and revealed the mechanism of soil water movement. The results showed that: (1) The average soil evaporation loss in the artificial forest was 21.30%, which was higher in spring and summer and lower in autumn and winter; (2) The soil water recharge from the artificial forest has the characteristics of preferential flow recharge, with long retention of precipitation in the soil, and full mixing of newly recharged water with original water; (3) The artificial forest increased the water storage capacity of deep soils (80–100 cm) in the oasis area, but the water consumption rate also correspondingly increased. Artificial forests must rely on water input to maintain normal growth, and its own water consumption rate and soil evaporation loss are high. Therefore, ecological, landscape, and water resource utilization benefits should be considered when constructing artificial forests in arid oasis areas where water resources are scarce.

Connection number based model for coordination development evaluation of regional water resources, social economy and ecological environment complex system

The development of social economy often requires a large consumption of water resources, and will also discharge a large amount of pollutants to the environment. Currently, the rapid development of regional water resources, social economy and ecological environment (WSE) complex system encounters significant challenges, and the coordination development of WSE complex system becomes important and necessary condition of regional sustainable development. Therefore, to scientifically evaluate the coordination development state of WSE system, based on the establishment of evaluation index system, the connection number and distance coordination model coupling approach for the coordination development evaluation of WSE complex system was proposed in this manuscript. The application results of the proposed method in Anhui Province, China indicate that, during 2011–2020, the coordination level of Anhui province is relatively high, and the coordination grade of most cities are in grade I or II. The coordination development degree of Anhui province presented a distinct improving trend with time, from most cities in grade IV or V in 2011 to most cities in grade II in 2020, from the worst 0.0580 in 2011 to the best 0.9200 in 2020. In terms of space, the coordinated development level of southern Anhui is higher than that of northern Anhui. Meanwhile, the coordination development status of the 16 cities in Anhui province can be divided into three patterns according to its historical variation characteristics, i.e., coordination development mode, ecological environment backward mode, and social and economic backward mode. Compared with the commonly used coordination evaluation method, the method of this paper can solve the problem of homogenization, and its calculation results are more reasonable and practical.

Integrated Geospatial and Geophysical Approaches for Mapping Groundwater Potential in the Semi-Arid Bukombe District, Tanzania

The rapid growth of civil societies coupled with population influx due to the artisanal mining industry in the Bukombe district (BD) has triggered a high demand for water resources. The daily consumption of water resources in the district surpasses the supply from available surface water sources. Thus, the situation has raised the demand for groundwater resources as an alternative. Despite the importance of groundwater resources, no current studies have spatially assessed groundwater potential to locate optimal points for borehole development. This study intended to investigate and map the groundwater potential areas (GWPAs) in the semi-arid BD using remote sensing (RS), the geographic information system (GIS), and the analytic hierarchy process (AHP) to help local communities access clean and safe water. Rainfall, geology, slope, drainage density, land use/land cover and lineament density were prepared to delineate the map of GWPAs. The map was categorized into poor (0.21%), moderate good (51.39%), good (45.70%) and very good (2.70%). Finally, the GWPA map was validated using Vertical Electrical Sounding (VES), 2-D sections and a drilled borehole. The validation results confirmed that the applied approach provides significant results that can help in planning the sustainable utilization of groundwater resources.