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371.
海子山自然保护区生态环境质量评价 总被引:1,自引:0,他引:1
海子山自然保护区生态环境独特,珍稀濒危动物富集,但在人类干扰下,其生态环境逐步恶化。本文采用层次分析法,选取自然性、多样性、代表性、稀有性、生态脆弱性、面积适宜性、人类干扰等7项指标对该自然保护区的生态环境质量进行定量评价。结果表明,该自然保护区自然性赋值为4分,多样性赋值为3分,代表性赋值为4分,稀有性赋值为4分,生态脆弱性赋值为3分,面积适宜性赋值为4分,人类干扰赋值为2分,综合评价指数为0.78,生态环境质量较好,但今后仍应加大该区的保护与管理。 相似文献
372.
Eugene E. Ezebilo Mattias Boman Leif Mattsson Anders Lindhagen Werner Mbongo 《Journal of Environmental Planning and Management》2015,58(2):283-296
In Sweden there is a strong tradition of using nature areas for outdoor recreation. This paper reports on a study which explored preferences and willingness to pay for outdoor recreation close to home (≤100 km away from home and ≤24 hours stay at a recreation site) using the contingent valuation method. The data originated from a mail survey that involved Swedish residents who were randomly selected from a national register. An ordinary least squares regression model was used to account for factors influencing willingness to pay. The results showed that approximately 50% of the respondents used nature areas close to their home for recreation and their average frequency of visits to these areas was 74 times annually. Areas dominated by forests were the most preferred, followed by water. The respondents were willing to pay approximately 7200 SEK (US$1080) annually. Their willingness to pay was influenced by factors such as type of nature area, distance to and time spent at the recreation site and income. The results provide one input to the land use planning process by considering the demand for nature-based outdoor recreation close to home. 相似文献
373.
羊毛吸声毡是一种新开发的绿色环保吸声材料,采用羊毛纺织工业弃用的粗羊毛制成。羊毛吸声毡具有优异的防火、声学和环保性能,在文化演艺建筑中得到了大量应用。 相似文献
374.
Dominic Muenzel Kay Critchell Courtney Cox Stuart J. Campbell Raymond Jakub Iliana Chollett Nils Krueck Daniel Holstein Eric A. Treml Maria Beger 《Conservation biology》2023,37(2):e14008
Larval dispersal is an important component of marine reserve networks. Two conceptually different approaches to incorporate dispersal connectivity into spatial planning of these networks exist, and it is an open question as to when either is most appropriate. Candidate reserve sites can be selected individually based on local properties of connectivity or on a spatial dependency-based approach of selecting clusters of strongly connected habitat patches. The first acts on individual sites, whereas the second acts on linked pairs of sites. We used a combination of larval dispersal simulations representing different seascapes and case studies of biophysical larval dispersal models in the Coral Triangle region and the province of Southeast Sulawesi, Indonesia, to compare the performance of these 2 methods in the spatial planning software Marxan. We explored the reserve design performance implications of different dispersal distances and patterns based on the equilibrium settlement of larvae in protected and unprotected areas. We further assessed different assumptions about metapopulation contributions from unprotected areas, including the case of 100% depletion and more moderate scenarios. The spatial dependency method was suitable when dispersal was limited, a high proportion of the area of interest was substantially degraded, or the target amount of habitat protected was low. Conversely, when subpopulations were well connected, the 100% depletion was relaxed, or more habitat was protected, protecting individual sites with high scores in metrics of connectivity was a better strategy. Spatial dependency methods generally produced more spatially clustered solutions with more benefits inside than outside reserves compared with site-based methods. Therefore, spatial dependency methods potentially provide better results for ecological persistence objectives over enhancing fisheries objectives, and vice versa. Different spatial prioritization methods of using connectivity are appropriate for different contexts, depending on dispersal characteristics, unprotected area contributions, habitat protection targets, and specific management objectives. Comparación entre los métodos de priorización de la conservación espacial con sitio y la conectividad espacial basada en la dependencia 相似文献
375.
Katarzyna M. Mikołajczak Jos Barlow Alexander C. Lees Christopher D. Ives Micha Strack Oriana Trindade de Almeida Agnis C. Souza Frazer Sinclair Luke Parry 《Conservation biology》2023,37(4):e14067
Inner phenomena, such as personal motivations for pursuing sustainability, may be critical levers for improving conservation outcomes. Most conservation research and policies, however, focus on external phenomena (e.g., ecological change or economic processes). We explored the factors shaping 9 conservation attitudes toward forest and wildlife protection among colonist farmers around an Amazonian deforestation frontier. Our data comprised 241 face-to-face quantitative surveys, complemented with qualitative insights from open-ended questionnaire responses and opportunistic semistructured interviews. To account for the full spectrum of possible inner motivations, we employed measures of nature connection (indicating biospheric motivation) and personal values organized around the traditionalism (traditionalist through to high openness to change) and universalism dimensions (egoistic through to altruistic motivations). We used averaged beta-binomial generalized linear models to assess the role of external factors (socioeconomic, sociodemographic, and environmental) and personal (inner) motivations on the variation in attitudes. Each attitude was modeled separately. The relative importance of each predictor was judged by the proportion of models where it appeared as significant. Proconservation views were expressed by the majority (at least 65%) of the respondents in 7 out of the 9 attitude models. The most consistent predictors were emotional nature connection and personal values (significant in 4–6 out of 9 models), rather than external phenomena (significant in 0–5 models). However, the poorest farmers had lower scores on the agreement with prioritizing nature over development (𝛽 = –0.52, 95% CI: –0.96 to –0.07). Qualitative data also indicated that economic barriers hinder forest conservation on farms. These results suggest that biospheric, traditionalistic, and altruistic motivations promote people's proconservation attitudes, but nurturing these latent motivations is unlikely to improve conservation outcomes if material poverty remains unaddressed. Integrating the inner–outer perspective into conservation thinking and practical interventions could foster environmental stewardship and increase human well-being. 相似文献
376.
377.
Understanding what drives environmentally protective or destructive behavior is important to the design and implementation of effective public policies to encourage people's engagement in proenvironmental behavior (PEB). Research shows that a connection to nature is associated with greater engagement in PEB. However, the variety of instruments and methods used in these studies poses a major barrier to integrating research findings. We conducted a meta-analysis of the relationship between connection to nature and PEB. We identified studies through a systematic review of the literature and used Comprehensive Meta-Analysis software to analyze the results from 37 samples (n = 13,237) and to test for moderators. A random-effects model demonstrated a positive and significant association between connection to nature and PEB (r = 0.42, 95% CI 0.36, 0.47, p < 0.001). People who are more connected to nature reported greater engagement in PEB. Standard tests indicated little effect of publication bias in the sample. There was significant heterogeneity among the samples. Univariate categorical analyses showed that the scales used to measure connection to nature and PEB were significant moderators and explained the majority of the between-study variance. The geographic location of a study, age of participants, and the percentage of females in a study were not significant moderators. We found that a deeper connection to nature may partially explain why some people behave more proenvironmentally than others and that the relationship is ubiquitous. Facilitating a stronger connection to nature may result in greater engagement in PEB and conservation, although more longitudinal studies with randomized experiments are required to demonstrate causation. 相似文献
378.
Heather Welch Stephanie Brodie Michael G. Jacox Steven J. Bograd Elliott L. Hazen 《Conservation biology》2020,34(3):589-599
Spatial management is a valuable strategy to advance regional goals for nature conservation, economic development, and human health. One challenge of spatial management is navigating the prioritization of multiple features. This challenge becomes more pronounced in dynamic management scenarios, in which boundaries are flexible in space and time in response to changing biological, environmental, or socioeconomic conditions. To implement dynamic management, decision-support tools are needed to guide spatial prioritization as feature distributions shift under changing conditions. Marxan is a widely applied decision-support tool designed for static management scenarios, but its utility in dynamic management has not been evaluated. EcoCast is a new decision-support tool developed explicitly for the dynamic management of multiple features, but it lacks some of Marxan's functionality. We used a hindcast analysis to compare the capacity of these 2 tools to prioritize 4 marine species in a dynamic management scenario for fisheries sustainability. We successfully configured Marxan to operate dynamically on a daily time scale to resemble EcoCast. The relationship between EcoCast solutions and the underlying species distributions was more linear and less noisy, whereas Marxan solutions had more contrast between waters that were good and poor to fish. Neither decision-support tool clearly outperformed the other; the appropriateness of each depends on management purpose, resource-manager preference, and technological capacity of tool developers. Article impact statement: Marxan can function as a decision-support tool for dynamic management scenarios in which boundaries are flexible in space and time. 相似文献
379.
Rothley KD 《Environmental management》2006,38(3):327-337
Many reserve selection tools have been created to solve the minimum representation problem, selecting the least costly set
of sites such that all conservation surrogate targets are met. However, there are practical problems and risks associated
with this method for finding reserve network alternatives, including the treatment of persistence-promoting design considerations
as secondary objectives. Here, reserve networks are generated for a hypothetical landscape where the objectives are to maximize
representation and to maximize conformance with persistence-promoting design principles, subject to a constraint on the number
of sites in the networks. The efficiency of potential networks is calculated as the total number of species captured in the
included sites. Effectiveness is measured as a function of the size of individual patches, total reserve size, and extent
of interpatch connectivity. A series of tradeoff curves are produced showing the nondominated compromise alternatives between
representation and design for organisms with varying dispersal capabilities. Each alternative comprises a list of selected
sites and covers species, as well as the identities and locations of the interpatch edges connecting the sites. Potential
ways to use the results are discussed. 相似文献
380.
豫东黄河故道湿地鸟类自然保护区现状调查及生态保护规划 总被引:4,自引:0,他引:4
对豫东黄河故道湿地鸟类自然保护区现状进行了调查,并提出了生态保护规划。 相似文献