Natural Resources Conservation and Research最新文献

{"title":"Loss and gain of marine biodiversity in Mediterranean seawaters","authors":"N. Cantasano","doi":"10.24294/nrcr.v7i1.5420","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.5420","url":null,"abstract":"The Mediterranean Sea is one of the most important biodiversity hotspots worldwide. The high biodiversity level of the basin is confirmed by the presence of about 17,000 marine species of which 20.2% are endemics. Amongst them, Posidonia oceanica (Linnaeus) Delile can form, in pristine coastal waters, large and extensive meadows, performing a pivotal role in endemic processes. However, the richness of marine biota is, actually, affected by some threats such as habitat loss, marine pollution, climate changes, eutrophication and the establishment of invasive alien species coming from the Indo-Pacific region through the pathway of Suez Canal. This trend could lead to a new kind of marine biodiversity influenced by the introduction of termophilic species altering the pattern of Mediterranean biota. Anyway, it is necessary a global approach, ensuring the better ecological conditions so to protect marine biodiversity in meditrranean seawaters.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"8 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141100594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Smart materials for sustainable energy","authors":"Jyoti Bhattacharjee, Subhasis Roy","doi":"10.24294/nrcr.v7i1.5536","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.5536","url":null,"abstract":"In the new era of technologies, different smart or responsive materials are used which can respond to external stimuli, such as a specific amount of mechanical stress, pressure, temperature, pH, or sunlight radiations, by modifying their shape or dimensions or mechanical properties. As global temperatures rise and weather patterns become more erratic and severe. The risk to communities with energy-passive structures is growing, smart materials such as smart rooftops, thermoelectrics, photovoltaics, pyroelectrics, chromoactive, photoluminescent, as well as other innovations, help to conserve renewable energy smartly and sustainably. This review paper reflects on the applications of different smart materials as renewable smart resources. Intelligent quantum dot solar cells, Schottky solar cells, organic thin-film photovoltaic cells, dye-sensitized solar cells (DSSCs), and organic-inorganic heterojunction solar cells have high conversion efficiency, low cost, and possess wide absorption spectra that reach the near-infrared range. Biomechanical energy can be transformed into green energy using triboelectric and piezoelectric-based smart nanogenerators such as zinc oxide nanowires. Shape memory materials such as Nitinol (NiTi) have been embedded in the wind turbine blades to enhance aerodynamic efficiency. Piezoelectric nanogenerators can convert mechanical energy directly into electrical energy by using wireless sensors to harvest energy from moving water in hydroelectric power plants. Thermoelectric materials such as silver antimony telluride (AgSbTe2) offer a sustainable energy option, which employs industrial waste heat to produce power. Smart materials like graphene are more reliable and effective than carbon nanotubes for storing green hydrogen. Smart non-enzymatic biofuel cells are used in biomedical gadgets such as anesthesia machines and pacemakers, which are self-powered and have great sensitivity. Shape memory materials (SMM) are introduced in natural gas and oil reservoirs because they offer exceptional qualities such as the shape memory effect (SME), lightweight, corrosion resistance, and superelasticity, which enhance the performance and robustness of offshore industries. These new advancements, challenges, and applications of smart materials for renewable energy are covered in this review paper.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"41 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141107852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environment and blue tourism: Moving towards sustainability—6th maritime tourism observatory for Skyros Island","authors":"Gerasimina-Theodora Zapanti, Ioannis Theodoulou, Kyriakos Antonopoulos, Constantina Skanavis","doi":"10.24294/nrcr.v7i1.4940","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.4940","url":null,"abstract":"Ports are some of the most significant entry points for Greek tourism investments and can be characterized as “development tools” for the country, both at the local and national level. The blue economy is a recent example of economic development, globally promoted as a way to achieve sustainability in maritime and coastal areas. Linaria Port has been accredited by the United Nations as a “The blue port with a shade of green,” constituting an environmentally sustainable community capable of promoting responsible environmental behavior both within the local community and among tourists. The port has been highly competitive in achieving high sustainability standards and mainly operates in ways that complement environmental quality. It has presented innovative, competitive, and sustainable solutions since 2010. This research aimed to collect primary and secondary data on tourist preferences to evaluate these services. Evaluation was conducted through anonymous questionnaires divided into two parts: the first part concerned the tourist profile, and the second part concerned tourists’ opinions on the services and facilities of the Port and the island. In the evaluation of the port, 91% of respondents rated the marina positively compared to other ports in the country, while 77% ranked the port of Skyros in a good position compared to other European or international ports. The overall quality of the tourist product was positively evaluated at 89%, while 90% of visitors were generally satisfied with the overall services offered. Moreover, 95% would return to Skyros within the next years.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"18 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contribution of Millets in food and nutritional security to human being: Current status and future perspectives","authors":"Priyanka Baduni, R.K. Maikhuri, Girish Bhatt, Harendra Rawat, Ravindra Singh, C.P. Semwal, Ashok Kumar Meena","doi":"10.24294/nrcr.v7i1.5479","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.5479","url":null,"abstract":"Globally food and nutrition insecurity remain a serious challenge however the situation is more sever to the groups of people living under marginal and disadvantaged society. The causes of food and nutrition insecurity are multifaceted and complex, and influenced by a range of factors including high poverty, natural resource degradation, climate change, low level of market development, uncertain food support, and inadequate policy and institutional support. Considering the acute shortage of food and nutrition facing by global population, strengthening food and nutritional security is crucial in order to feed the ever-growing world population. One of the promising approaches of promoting millets, which requires low external inputs, a novel candidate for nutrients and adapted to thrive in harsh and dry environment. These crops play an important role in global food and nutrition security, and may have potential to contribute to sustainable food systems under changing climatic conditions. Keeping in view the importance of the millets in diversifying diet as well as a source of rich nutrition, we conducted an analysis by reviewing the research articles/reports/books as well as online databases to identify the prospects of millets crops crucial for continuous supply of food and nutrition, traditionally managed genetic resources for future crop improvement and making agricultural system resilient under changing climatic conditions. Evidences suggested from the meta-analysis that as a product of generations of agricultural landrace, there are range of millet crops are rich in nutrients, resilient, and adapted to location specific agricultural environments. Such millet crops in the existing cropping systems could support diverse food systems and nutrient suppliers and represent a broad gene pool to improving crops with suitable genetic interventions in the future. The study advocates for advancement in genomics coupled with molecular breeding for improving the genetic potential of millet crops and open avenues for developing sustainable food systems. The study also emphasis on developing strategies and roadmap for future research engagement and a policy interface to facilitate conservation and management of traditional landraces and associated indigenous knowledge of cultivation and consumption while adopting sustainable production of millet crops under marginal environmental conditions.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"20 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140965289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling soil organic carbon based on field soil-texture measurements","authors":"Talita Nogueira Terra, R. F. dos Santos, Rubens Augusto Camargo Lamparello","doi":"10.24294/nrcr.v7i1.4913","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.4913","url":null,"abstract":"There are many studies about soil organic carbon (SOC) around the world but, in extensive territories, it is more difficult to obtain data due to the number of variables involved in the models and their high cost. In large regions with poor infrastructure, low-cost SOC models are needed. With this in mind, our objective was to estimate the SOC using a simple model based on soil textural data. The work was focused on savanna soil and validated the model in the Brazilian Savanna. Two models were constructed, one for topsoil (0–0.3 m) and other for subsoil (0.3–1.0 m). The SOC models can be carried out in a textural triangle together with SOC values. The results showed that subsoil models were more accurate than topsoil models, but both had good performance. The models give support to SOC-related preliminary research in gross and fast estimates, requiring only reduced financial contribution to calculate SOC in a large region of interest.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":" 1266","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140988905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of aquatic ecosystem quality in Dharoi Reservoir using Sentinel-2 satellite imagery","authors":"Saurabh Kumar Gupta, S. Kanga, S. Singh","doi":"10.24294/nrcr.v7i1.4477","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.4477","url":null,"abstract":"Background: Dharoi Reservoir, located in Gujarat, India, is a vital freshwater resource supporting agriculture, industry, and local communities. Chl-a, a key indicator of water quality, reflects the trophic state and ecological balance of aquatic systems. Objective(s): This study aims to provide comprehensive insights into the water quality dynamics of Dharoi Reservoir, offering valuable information for environmental management and sustainable water resource planning. Methods: This study employs high-resolution Sentinel-2 satellite imagery to analyze Chl-a concentrations in the reservoir during October 2020. The Chl-a index, calculated by dividing Sentinel-2 bands B5 and B4, reveals a spatial distribution of Chl-a concentrations. Results: The Chl-a index ranges from 73.78 to 100. The mean Chl-a index is 91.6 with a standard deviation of 3.27, indicating elevated and variable Chl-a concentrations. Conclusions: The findings contribute to the understanding of the reservoir’s ecological health and assist in making informed decisions for water quality management. This research exemplifies the integration of remote sensing technology and environmental stewardship, promoting sustainable water management practices in the region. Policy recommendations: No policy recommendations are explicitly stated in the abstract, but they could be inferred from the conclusions. For example, one possible policy recommendation is to monitor and regulate the sources of nutrient inputs into the reservoir, such as agricultural runoff, sewage, and industrial effluents, to reduce the risk of eutrophication and algal blooms. Another possible policy recommendation is to implement adaptive management strategies that consider the seasonal and spatial variability of Chl-a concentrations and their impacts on water quality and availability.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"88 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140371150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methods for economic assessment of forest resource degradation: A systematic review","authors":"Robert Sourokou, F. Vodouhè, Jacob A. Yabi","doi":"10.24294/nrcr.v7i1.4353","DOIUrl":"https://doi.org/10.24294/nrcr.v7i1.4353","url":null,"abstract":"Forest degradation is one of the challenges facing the planet today. Several methods have been used to measure forest degradation, including spatiotemporal model analysis, satellite analysis, remote sensing, time series data, geospatial techniques, and most recently aerial drone imagery. However, few studies have used economic valuation methods to assess forest degradation. Therefore, this research aimed to identify the methods used the economic assessment of forest degradation. This systematic review was carried out using PRISMA guidelines. Research articles on the economic valuation of forest resource loss, published from 2015 to 2022, were electronically collected from three databases. Three independent reviewers, with the third acting as referee, inventoried articles, extracted data, and assessed the risk of bias in the articles included in the study. A total of 10,095 articles were identified, including one article from the grey literature. Only five articles met the eligibility criteria. A qualitative content analysis was performed on the extracted data. The selected articles used various methods. However, only a few articles used the contingent valuation method, even though this is indicated for estimating the highest economic value of forests. Based on forest functions, the articles evaluated erosion due to the absence of trees, wood loss, recreation areas and externalities due to forest loss, air quality, water regulation, food supply, and wildlife. The main limitation of this review was the small number of studies included, which may have affected the findings. The study protocol is registered in PROSPERO under the number CRD42021223242","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140391606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Once again about “global warming” and “greenhouse gases”","authors":"Alexey R. Kulchitskiy","doi":"10.24294/nrcr.v6i2.2607","DOIUrl":"https://doi.org/10.24294/nrcr.v6i2.2607","url":null,"abstract":"An analysis was carried out of documents adopted at international conferences from 1992 to 2022 that reflected the current state of the planet’s climate, characterized by an increase in the average global temperature. The validity and effectiveness of the measures that were taken to reduce the rate of increase in the indicated temperature were also analyzed. The analysis took into account data characterizing the state of the climate on the planet over the past 66 million years. An analysis of documents relating to the problem of “global warming” shows that too much responsibility is placed on human activity and too little attention is paid to natural factors. At the same time, as evidence, they operate with data of several decades, in the best case, two or three centuries. But this is too small a time scale, and in this case, we can only talk about local climate change in different regions and not about global change on the entire planet. Analysis of data on a scale of hundreds of thousands and millions of years shows that periods of both cooling (ice ages) and warming occurred on our planet long before the appearance of humans. At the same time, the Little Ice Age ended only in the middle of the 19th century, and it is quite natural that a warming process is now underway. The main responsibility for global warming lies with anthropogenic influence due to the development of industry, agriculture, and deforestation. Such human activity has led to an increase in the release of so-called greenhouse gases into the atmosphere, which ensures an increase in the greenhouse effect—the secondary heating of the atmosphere by long-wave (infrared) radiation from the surface of the planet absorbed by these gases. The main gas responsible for the greenhouse effect is carbon dioxide (CO2). However, it was not taken into account that water vapor has three times the ability to absorb infrared radiation. Also, scientific data obtained from the analysis of core samples recovered from deep wells in Antarctica and Greenland were not taken into account. An analysis of the composition of the air contained in the core showed that the amount of carbon dioxide does not precede warming but comes after warming since 90% of carbon dioxide is dissolved in the World Ocean. When it is heated, a huge amount of carbon dioxide is released into the atmosphere, and when it gets colder, the oceans easily absorb carbon dioxide. Currently, climate policy is based on inadequate models that have many shortcomings, and giving too much of a role to humans in influencing the climate will not have the expected effect.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"118 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of mycotic diseases attack on indigenous old mango plants grown in Vatala park, Tehsil Bernala District Bhimber, Azad Kashmir","authors":"Tanveer Hussain, Faheem Ahmed Khan, Rawish Ahmed Sikander","doi":"10.24294/nrcr.v6i2.2985","DOIUrl":"https://doi.org/10.24294/nrcr.v6i2.2985","url":null,"abstract":"The current research work was explored fungal attacks on different parts of mango (Mangifera indica L.) trees naturally grown in Tehsil Bernala, District Bhimber Azad Kashmir. Different symptoms were observed, like stem end rot, anthracnose dieback, and blossom blight, during field survey. The identification of mycotic diseases was confirmed by further direct microscopic examination of affected parts of mango trees. Then fungal diseases of mango trees were isolated by microculture and purification methods on different media. Some other parameters, like disease incidence and disease severity rates, were measured against each identified disease through a pathogenicity test under in vitro conditions. It was indicated that maximum disease incidence (DI) was 33.73% measured against dieback disease. The lowest incidence (30.98%) was measured against blossom blight disease. It was also found that disease severity (DS) was rated from 0 to 4 on a visual rating scale.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"151 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139622411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the possible impacts of a regulatory change on resource conservation: The case of the plumpox virus in France","authors":"J. Terreaux","doi":"10.24294/nrcr.v6i2.2986","DOIUrl":"https://doi.org/10.24294/nrcr.v6i2.2986","url":null,"abstract":"Preserving natural resources in the context of global change includes looking at how to protect trees, whether in forests or for fruit production, from various epidemic diseases. A change in European regulation presently underway (EU 2016/2031; currently, in 2023, transitional measures are being implemented in France) transfers, from the public authorities to the profession (all the tree growers susceptible to be concerned), the responsibility for detecting plum pox virus, which has the potential to damage virtually all stone fruit orchards, and for eliminating the affected trees. Yet the disease is a viral one, transmitted by a vector (aphids) from tree to tree and from orchard to orchard. Within a few years, fruit from contaminated trees can no longer be marketed. We show here that, in the context of this new regulation, the heterogeneity of the tree growers (due to the size of the orchards, the diversification of the crops, the future of the farm...) can lead to a recrudescence of the disease throughout the stone fruit orchards. This would also imply all kind of negative effects on the economic (employment in the agricultural sector, national trade balance, processing and marketing sector activities...), social and environmental (landscapes...) levels. The results can easily be generalised to any problem of conservation of natural resources whose management is delegated to private stakeholders.","PeriodicalId":113263,"journal":{"name":"Natural Resources Conservation and Research","volume":"28 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139441681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}