scholarly journals Environmental services in home gardens of la Chontalpa, Tabasco, Mexico

Author(s):  
Rosalva Chablé-Pacual, ◽  
David J. Palma-Cancino ◽  
Cesar J. Vázquez-Navarrete ◽  
Octavio Ruiz-Rosado ◽  
Jesús Ascensio-Rivera ◽  
...  

Objective: To identify the environmental services provided by home gardens in nine communities of La Chontalpa region in Tabasco, Mexico. Design/methodology/approach: Having previously identified home gardens, a visit route to nine communities was drawn using cartographic and demographic information. Three home gardens per community were randomly selected. Interviews about the use of home gardens were conducted. Physical environmental factors were measured inside and outside the gardens and soil samples were taken to determine organic matter and carbon contents in the soil. According to their category, the environmental services provided by the home gardens in each community were identified and classified into four types: provisioning, supporting, cultural, and regulating services. Results: Thirteen environmental services were identified as being provided by home gardens. Provisioning and cultural services are present in all localities. The most frequent category is the provision of food, followed by the provision of raw materials and education. Supporting and regulating services were observed in most communities —except for climate regulation, since the environmental conditions only allow gardens to provide the said service in four of the evaluated communities. Limitations on study/implications: Knowledge about the benefits of building home gardens suggests that these agrosystems provide environmental services. Categorizing the environmental services provided by home gardens is therefore important. Findings/conclusions: Home gardens in La Chontalpa, Tabasco, do not only provide provisioning services, but also cultural, supporting, and —to a lesser extent— regulating services.

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
. Desiana ◽  
Emi Roslinda ◽  
Siti Masitoh Kartikawati

Environmental services are the services provided by the ecosystem functions that have direct and indirect benefits. The purpose of this study is to describe the potential of environmental services in the KEHATI Park, Sekadau Regency. KEHATI Park Sekadau was built in 2012 with the aim of adding green open space land cover, collection of plants, development of science and ecotourism and the sources of seeds. The KEHATI Park ecosystem in Sekadau Regency has the potential of environmental services as a result of the interaction of the ecosystem in it. The Millennium Ecosystem Assessment (MEA 2005) classifies environmental services into four namely provisioning services, regulating services, cultural services, and supporting services. The method used is the survey method with interview techniques and questionnaires. For sampling of respondents conducted by accidental sampling and census. Data analysis was conducted based on MEA (2005) which was then analyzed descriptively. The environmental services contained in the Sekadau Forest Park are potential provisioning services that can be seen from foodstuffs such as fruit plants, medicines, vegetables, and forestry plants. Then regulating services that have the function of maintaining air quality, cultural services which are non-material benefits as a place of recreation, and the existence of supporting services (supporting services).Keywords: Environmental Services, KEHATI Park Sekadau, Millenium Ecosystem Assesment 


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Moawiya A. Haddad ◽  
Sharaf S. Omar ◽  
Salvatore Parisi

PurposeThe purpose of this study comes from the need of defining improved durability values and the realization of a good traceability management for selected vegan cheeses has suggested the comparison between a processed cheese and its analogous version without animal-origin raw materials. The durability should be studied at a well-defined temperature, probably agreed among the food producer and the food processor. In addition, the traceability system should consider many components and related suppliers.Design/methodology/approachA supply chain risk assessment analysis has been carried out with relation to two different products: an analogue cheese and a vegan cheese-like preparation. Raw materials and ingredients have been evaluated (production method and origin; geographical identification), with the aim of identifying simplified food.FindingsAn assessment of food supply networks has been carried out. In the first situation (analogue cheeses), the ingredient “cheeses” shows an important complexity: five suppliers with a related six-interconnection hub. On the other side, vegan cheeses are obtained from 11 ingredients (a challenging hub); four of them may be produced from 2–5 components of different origin (five total hubs). Tested processed cheeses are represented by means of a linear food supply network with two hubs (cheeses and “arrival” show degrees 6 and 9, respectively). Networks concerning vegan cheeses include five different hubs: four complex raw materials (degree: 2, 3, 4 and 5) and the “arrival” step (degree: 12).Originality/valueThe information load of vegan cheeses (two hubs, degrees >> average degree) appears high if compared with processed cheeses (two hubs), although the complexity of networks appears similar. Vegan cheeses may seem technologically simpler than processed cheeses and be sometimes questioned because of important traceability issues. Adequate traceability countermeasures in terms of preventive monitoring actions should be recommended when speaking of vegan cheeses. Anyway, a centralized manager would be always required.


Author(s):  
Rodica Sturza

The presented results reflect the researches carried out over the last decade, having as their object the soil, water, vegetal raw materials, and wines from the Republic of Moldova. The analysis of the possible anthropogenic contamination (NAA method) demonstrated the absence of systematic soil pollution. A total of 30 elements were determined in soil samples and the soil-leaves-fruit transfer factors were calculated. Approximately 3000 samples of local wines have been analysed to determine the residual quantities of pesticides. POPs were not found in any of the wine samples. In most of the examined cases (> 60% of samples), the lack of organic pesticide residues was observed. The migration of phthalates into different solutions from polymeric materials (PVC, rubber) and the influence of the temperature on the extraction rate were investigated. It has been shown that the contamination with phthalate residues occurs predominantly at the stage of grape processing, technological treatment, and storage.


Author(s):  
Jon Strand

Different ecosystem values of the Amazon rainforest are surveyed in economic terms. Spatial rainforest valuation is crucial for good forest management, such as where to put the most effort to stop illegal logging and forest fires, and which areas to designate as new nationally protected areas. Three classes of economic value are identified, according to who does the valuation: values accruing to the local and regional populations (of South America); carbon values (which are global); and other global (noncarbon) values. Only the first two classes are discussed. Three types of value are separated according to ecosystem service delivered from the rainforest: provisioning services; supporting and regulating services; and cultural and other human services. Net values of provisioning services, including reduced impact logging and various non-timber forest products, are well documented for the entire Brazilian Amazon at a spatially detailed scale and amount to at least $20–50/ha/year. Less-detailed information exists about values of fish, game, and bioprospecting from the Amazon, although their total values can be shown to be sizable. Many supporting and regulating services are harder to value economically, in particular climate regulation and watershed and erosion protection. Impacts of changed rainfall when Amazon rainforest is lost have been valued at detailed scale, but with relative model values of $10–20/ha/year. Carbon values are much larger, at a carbon price of $30/ton CO2, around $14,000/ha as capitalized value. The average per-hectare value of tourism and the health benefits from having the Amazon forest are low, and such values cannot easily be pinned down to individual areas of the Amazon. Finally, the biodiversity values of the Amazon, as accruing to the local and regional population, seem to be small based on recent stated-preference work in Brazil. Most of the values related to biodiversity are likely to be global and may. in principle, be very large, but the global components are not valued here. The concept of value is discussed, and a marginal valuation concept (practically useful for policy) is favored as opposed to an average or total valuation. Marginal value can be below average value (as is likely for biodiversity and tourism), but can also in some contexts be higher. This can occur where losing forest at a local scale increases the prevalence of forest fires and where it increases forest dryness, leading to a multiplier process whereby more forest is lost. While strides have recently been made to improve rainforest valuation at both micro- and macroscales, much work still remains.


2016 ◽  
Vol 45 (6) ◽  
pp. 439-443 ◽  
Author(s):  
Tingting Xu ◽  
Cuifeng Zhang ◽  
Lijun Chen

Purpose Presently, a wide range of polyurethane adhesives can be obtained using different kinds of polyols and isocyanates. However, the applied temperature of the polyurethane adhesive is not more than 80°C. The film of polyurethane adhesive will be softened and deformed when its applied temperature is more than 100°C. Thus, the mechanical property of the polyurethane adhesive is decreased clearly, which limits its further application. The purpose of the study is to improve the heat resistance of polyols, especially polyester polyols and its resultant polyurethane adhesives. Design/methodology/approach The more rigid benzene ring is introduced into the polyester polyols to improve the heat resistance of its resultant polyurethane adhesive. Findings The more rigid benzene ring has ben introduced into the polyester polyols and the heat resistance of its resultant polyurethane adhesive is improved. Originality/value The polyester polyols with more rigid benzene ring have been prepared successfully by the vacuum melting method when diethylene glycol, neopentyl glycol, 1,6-hexanediol, ethanediol, isophthalic acid, terephthalic acid, sebacic acid and adipic acid are used as raw materials and tetra-isopropyl titanate is adopted as the catalyst.


2018 ◽  
Vol 15 (1) ◽  
pp. 84-103 ◽  
Author(s):  
Syrus Islam ◽  
Ralph Adler ◽  
Deryl Northcott

Purpose Performance measurement systems (PMSs) are at the heart of most organisations. The aim of this study is to examine the attitudes of top-level managers towards the incompleteness of PMSs. Design/methodology/approach This paper draws on an in-depth field study conducted in an energy and environmental services provider based in New Zealand. The data, which were obtained from 20 semi-structured interviews, were triangulated against on-site observations and company documents. Findings The findings suggest that whether the incompleteness of a PMS is considered problematic or non-problematic depends on the role that the PMS plays in implementing a firm’s strategy. The authors show that when the PMS is mainly used to trigger improvement activities on and around strategic objectives and managers perceive adequate improvement activities to exist, then they consider the incompleteness of the PMS in relation to these strategic objectives to be non-problematic. Originality/value This study contributes to the nascent literature on managerial attitudes towards the incompleteness of PMSs by identifying conditions under which the incompleteness is considered problematic or non-problematic. The authors also contribute to the literature on the association between design qualities of PMSs and firm performance by suggesting that poor design qualities of a PMS (such as incompleteness) may not always translate into poor firm performance.


2014 ◽  
Vol 26 (4) ◽  
pp. 291-304 ◽  
Author(s):  
Wei Zhen Wang ◽  
Yan Wang ◽  
Shu Lian Yu ◽  
Lin Sun ◽  
Jing Liu ◽  
...  

Purpose – In view of high consumption situation of raw materials in the apparel industry due to unique and diversified style, the purpose of this paper is to investigate the application of pattern transformation between clothing and tent, explore the feasibility of extending multi-functional product and provide experimental demonstration for realizing 5R (Reduce, Reevaluate, Reuse, Recycle, Rescue) design goal of garment product. Design/methodology/approach – According to the results of market research, in order to make single product have the functions of both outdoor couple clothing and simple tent, the planar patterns of clothing and tent are compared and transformed to make them compatible with each other, then the removable multi-functional design and technique processing are adopted. Findings – It was found that outdoor clothing and tent with similar application occasions and raw materials could realize the assumption of multi-functional product. Their combination has the functions of both clothing and tent by wearing and assembling. Originality/value – By means of this transformation design, the diversification and enjoyment of garment styles and functions can be realized. This helps to improve the energy efficiency of raw materials and accessories by increasing the frequency of product reuse and sharing. In addition, the enjoyment design of products also helps to lead and promote ecological consumption.


Omni-Akuatika ◽  
2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Yudi Wahyudin ◽  
Tridoyo Kusumastanto ◽  
Luky Adrianto ◽  
Yusli Wardiatno

The purpose of this study was to determine the typology, seagrass ecosystem function andservices that are useful for human well-being.  This research was conducted by using literaturessurvey of some scientific documents and analyzed qualitatively and described to obtain acomprehensive overview in accordance with purposes of this research.  The results of this studyshows that seagrass ecosystem provides the benefits of ecosystem services are valuable andneeded humans to meet their needs and well-being, both ecologically, socially, and economically. Those ecosystem services include the following: (i) provisioning services that one of them shownby the production of a protein source necessary for mandkind, (ii) regulating services, one of whichis shown by role of seagrass in maintaining the stability of white sand beaches from abrasion, (iii)cultural services, one one which is shown by the role of seagrass in making the surrounding areaas a place for recreation, especially recreational fishing, and (iv) supporting services, one of whichis shown by the role of seagrass in the process of supplying oxygen and nutrient cycling in thewaters of the needs of fish and biota surrounding.  All the ecosystem services provided to be asource of life and livelihood are needed to meet the people’s welfare.  Keywords : seagrass, ecosystem services, provisioning services, regulating services,cultural services, supporting services


2018 ◽  
Vol 9 (3) ◽  
pp. 446-452 ◽  
Author(s):  
V. V. Morgun ◽  
R. A. Yakymchuk

Mass accumulation of toxic waste near inhabited localities has changed some regions of Ukraine, in particular Kalush industrial area (Ivano-Frankivsk region), into zones of ecological disaster. Research on cytogenetic anomalies caused by chemical soil contamination of the territories of toxic chemical warehouses will be useful in determining the level of mutagenic activity of xenobiotics when they enter the environment and potential mechanisms of the induction of chromosome reconstructions by them and mitosis disorders. The aim of the research is to study frequency and spectrum of the types of cytogenetic disorders in T. aestivum L. under the prolonged effect on the seeds of soil contaminated with hexachlorinebenzene from territories of toxic waste warehousing and to determine the level of their mutagenic activity as compared with the effect of moderate and high concentrations of N-nitrozo-N-methylurea (NMU). Seeds of winter wheat cultivars Al’batros odes’kyi and Zymoiarka were sprouted in the soil samples taken from the toxic waste ground of LLC “Oriana Halev”, its recultivated area and the dump area of Dombrovskyi potash ore mine, situated near Kalush city. Hexachlorobenzene concentrations in the soil of the studied areas exceeded CPC by 1233–18350 times. Soil samples from a tentatively clean area of Svatky village, Hadiach district, Poltava region were taken as the control. To study cytogenetic consequences of the effect of moderate and high concentrations of NMU, wheat seeds were kept in a mutagen water solution at concentrations 0.005%, 0.010%, 0.025%. Frequency and spectrum of cytogenetic anomalies were determined in the cells of sprout root meristem using the anatelophase technique. Chemical contamination of the soil exhibited high mutagenic activity which, by induction frequency of cytogenetic anomalies, exceeded the control level by 1.8–3.8 times and equalled mutagenic activity of NMU in moderate concentrations. The highest level of cytogenetic disorders, which exceeded spontaneous indicators by 3.4–3.8 times, was found when the soil contamination of the territory of the toxic waste ground with hexachlorobenzene was the most intensive. Traces of hexachlorobenzene in the soil of the recultivated plot of the ground continue to manifest high cytogenetic activity and pose a threat for the genomes of living organisms. Frequency of chromosome aberrations at a low hexachlorobenzene concentration in the soil of the disposal area of Dombrovskyi mine exceeded spontaneous indicators by 1.8–2.4 times, which is the result of its complex effect with natural-mineral compounds of mining-chemical raw materials. The increase of some bridges and acentric chromosome rings – markers of a radiation effect – among the types of cytogenetic disorders, induced by the soil contamination with hexachlorobenzene, confirms the radiometric properties of the xenobiotic, which were identified at high concentrations of NMU. The increase in the number of the cells with multiple aberrations, induced by the hexachlorоbenzene contamination of the soil holding the studied objects proves the high genotoxicity of the chemical compound and the threat of serious genetic consequences if it enters the environment.


Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 451 ◽  
Author(s):  
Zhigang Zou ◽  
Fuping Zeng ◽  
Kelin Wang ◽  
Zhaoxia Zeng ◽  
Hui Tang ◽  
...  

Although many land-use patterns have been established to restore vegetation and eliminate poverty in the karst area in southwest China, the ecosystem services (ESs) of these patterns are still not fully understood. To compare the differences in seven typical monoculture patterns and three agroforestry patterns, their ESs and tradeoffs were analyzed within the Millennium Ecosystem Assessment Framework. Compared with the local traditional corn pattern, the marigold pattern improved provisioning, regulating, and cultural services by >100%. The pomegranate pattern provided far more provisioning services than the other patterns. The apple + soybean intercropping pattern reduced regulating services, and eventually, its Total ESs (TES) and ecosystem multifunctionality index (EMF) also decreased. Cultural services will be enhanced by the introduction of fruit trees, as well as intercropping. Orange + peach had the greatest negative tradeoffs between provisioning and regulating services (P-R), provisioning and supporting services (P-S), and provisioning and cultural services (P-C), which indicates that the provisioning services urgently require improvement. Peach + pumpkin intercropping decreased the negative tradeoffs of P-R, P-S, and P-C (all > 10%), while pomegranate + grass intercropping increased the negative tradeoffs of R-S and R-C (all > 100%). Our results suggest that all six of these patterns are worthy of promotion but the pomegranate pattern should be given priority. Among the three intercropping patterns studied herein, the apple + soybean pattern should be redesigned to improve performance.


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