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Analyzing Spatial and Geometrical Patterns of Tiruchirappalli and Tier-Urban Centers Using Spatial Metrics 利用空间尺度分析蒂鲁奇拉帕利和二线城市中心的空间和几何格局
Q3 Environmental Science Pub Date : 2023-08-22 DOI: 10.2478/jlecol-2023-0010
K. Prakash, R. Jegankumar, Sheik Mohideen Abdul Rahaman, R. S. Libina, Subbiah Pothumani Dhanabalan
Abstract Understanding spatial and geometrical patterns of urbanization is crucial in tackling associated problems. As urbanization progresses through various stages of development, it reflects different forms, patterns, and interactions based on its physical and functional aspects. Spatial metrics is a well-acclaimed technique for quantifying urban morphological characteristics. The current study was conducted for Tiruchirappalli and six tier-urban centers located within a 40-kilometers radius to comprehend the comparative growth and spatial patterns. The urban centers are divided into eight zones based on direction for more precise quantification. The study employed Landsat 5 and 8 satellite images to classify land use/cover for the periods 1996, 2008, and 2020. FRAGSTAT is the software application used to analyze spatial metrics, at patch, class, and landscape levels. The study generated a significant amount of data about spatial and geometric patterns of growth. Area, edge, and aggregation metrics indicated that zones in Manachanallur, Manapparai, Musiri, Thiruverumbur, and Thuraiyur had protrusive urban growth during the study period. Transport networks have been the instrumental factor for such growth. Diversity metrics revealed Tiruchirappalli and Thiruverumbur have abundant patches of various classes in many of their zones since they retain patches like open, vegetation, and water bodies extensively. Shape metrics across all urban centers during the period 1996-2008 were more irregular in shape; it has become significantly smooth during 2008-2020 due to infill developments on the fringe areas. The period 1996-2008 recorded a huge transition of open areas into built-ups, attributing to infill development, especially inside the urban centers; similarly, during the period 2008-2020, edge expansion has been recorded widely across the urban centers. The current study is a significant contribution to urban research in understanding relative spatial and geometric patterns of urbanization.
了解城市化的空间和几何模式是解决相关问题的关键。随着城市化经历不同的发展阶段,它在物理和功能方面反映出不同的形式、模式和相互作用。空间度量是一种广受赞誉的量化城市形态特征的技术。本研究以蒂鲁奇拉帕利和位于40公里半径内的六个三线城市中心为研究对象,了解其比较增长和空间格局。为了更精确地量化,城市中心根据方向划分为八个区域。该研究使用Landsat 5和8卫星图像对1996年、2008年和2020年的土地利用/覆盖进行分类。FRAGSTAT是一个软件应用程序,用于分析空间指标,在斑块,类,和景观水平。这项研究产生了大量关于空间和几何增长模式的数据。区域、边缘和聚集指标表明,在研究期间,Manachanallur、Manapparai、Musiri、Thiruverumbur和Thuraiyur区域的城市增长突出。运输网络一直是这种增长的重要因素。多样性指标显示,Tiruchirappalli和Thiruverumbur在许多地区都有丰富的各种类型的斑块,因为它们广泛地保留了开放、植被和水体等斑块。1996年至2008年期间,所有城市中心的形状指标都更加不规则;在2008-2020年期间,由于边缘地区的填充开发,它变得非常平稳。1996年至2008年期间,由于填充开发,特别是在城市中心,开放地区向建成区的巨大转变;同样,在2008年至2020年期间,边缘扩张在城市中心得到了广泛的记录。本研究对于理解城市化的相对空间和几何格局具有重要意义。
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引用次数: 0
Mapping and Yield Prediction of Castor Bean (Ricinus communis) Using Sentinel-2A Satellite Image in a Semi-Arid Region of India 基于Sentinel-2A卫星图像的印度半干旱区蓖麻(Ricinus communis)制图及产量预测
Q3 Environmental Science Pub Date : 2023-08-22 DOI: 10.2478/jlecol-2023-0008
Ritesh Kumar, Narendra Singh Bishnoi, Nimish Narayan Gautam, Muskan, V. Mishra
Abstract Castor bean (Ricinus communis) indigenous to the southeastern Mediterranean basin, eastern Africa and India is a crop having various industrial and medicinal applications. It is helpful in crop rotation and replenishing the soil nutrients due to less water consumption. The current study explores the utility of Sentinel-2A satellite image for mapping and yield prediction of castor beans. Several classification methods viz. migrating means clustering, maximum likelihood classifier, support vector machine and artificial neural network are used for the classification and mapping of different landscape categories. The overall classification accuracy was achieved to be highest for artificial neural network (85.81 %) subsequently support vector machine (80.12 %), maximum likelihood classifier (74.23 %) and migrating means clustering (73.03 %). The yield prediction is performed using Sentinel-2A-derived indices namely Normalized Difference Vegetation Index and Enhanced Vegetation Index-2. Further, the cumulative values of these two indices are investigated for castor bean yield prediction using linear regression from July 2017 to April 2018 in different seasons (pre-monsoon, post-monsoon, and winter). The regression model provided (adj R2=0.75) value using EVI-2 compared to (adj R2=0.55) using NDVI for yield prediction of Ricinus communis crop in the winter season. The methodology adopted in this study can serve as an effective tool to map and predict the productivity of Ricinus communis. The adopted methodology may also be extended to a wider spatial level and for other significant crops grown in semi-arid regions of world.
摘要蓖麻原产于地中海东南部盆地、非洲东部和印度,是一种具有多种工业和医药应用的作物。它有助于轮作和补充土壤养分,因为它消耗的水更少。目前的研究探索了Sentinel-2A卫星图像在蓖麻豆测绘和产量预测中的实用性。采用迁移均值聚类、最大似然分类器、支持向量机和人工神经网络等多种分类方法对不同景观类别进行分类和映射。人工神经网络(85.81%)、支持向量机(80.12%)、最大似然分类器(74.23%)和迁移均值聚类(73.03%)的总体分类准确率最高。产量预测使用Sentinel-2A衍生的指数进行,即归一化差异植被指数和增强植被指数-2。此外,利用线性回归方法对2017年7月至2018年4月不同季节(季风前、季风后和冬季)蓖麻产量预测中这两个指标的累积值进行了研究。回归模型使用EVI-2提供了(adj R2=0.75)值,而使用NDVI提供了(dj R2=0.55)值,用于预测蓖麻作物在冬季的产量。本研究采用的方法可以作为绘制和预测蓖麻生产力的有效工具。所采用的方法也可以扩展到更广泛的空间层面,并适用于世界半干旱地区种植的其他重要作物。
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引用次数: 0
Zonal Concept: Landscape Level Parameters and Application 分区概念:景观水平参数及应用
Q3 Environmental Science Pub Date : 2023-08-22 DOI: 10.2478/jlecol-2023-0009
Petr Dujka, A. Kusbach
Abstract Zonal concept is a traditional approach in land assessment. Although its principles have been known for over a hundred years, they have not yet been thoroughly evaluated using modern analytical approaches. Assessing the empirically established parameters for characterising a zonal site, establishing threshold values of significant environmental factors, along with assessing the applicability of the zonal concept, were the goals of this study. The data analysed were obtained from the robust and objective Czech National Forest Inventory database. Regression, indirect ordination, hierarchical clustering and spatial analyses of geo-information systems were used. The study revealed seven crucial environmental factors: Slope, Slope Height, Terrain Surface Texture, Negative Openness, Multi-Resolution Index of Valley Bottom Flatness, Soil Type and Soil Subtype. A graphical model of zonal/azonal sites was constructed based on calculated threshold values of the factors. This methodic approach introduces significant geomorphological information that are otherwise problematically detectable in field mapping. We suggest it is possible to use the zonal concept as a base layer for general landscape assessment. Zonal site classification can become a part of a precise land management practice, consisting of valuable empiricism of traditional landscape ecological classifications enriched by modelling in disturbance ecology and prediction of climate change effects.
地带概念是土地评估的传统方法。虽然它的原理已经知道了一百多年,但它们还没有用现代分析方法进行彻底的评估。本研究的目标是评估经验建立的参数,以表征地带性场地,建立重要环境因素的阈值,以及评估地带性概念的适用性。所分析的数据来自强大而客观的捷克国家森林清查数据库。采用回归分析法、间接排序法、层次聚类法和空间分析法对地理信息系统进行分析。研究揭示了7个关键环境因子:坡度、坡高、地形表面纹理、负开放性、谷底平整度多分辨率指数、土壤类型和土壤亚型。基于计算的因子阈值,构建了地带性站点的图形模型。这种有条理的方法引入了重要的地貌信息,否则在野外测绘中难以检测到。我们建议可以使用分区概念作为一般景观评估的基础层。地带性立地分类可以成为精确土地管理实践的一部分,由传统景观生态分类的宝贵经验组成,丰富了干扰生态学建模和气候变化影响预测。
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引用次数: 0
Floristic Composition, Structure, and Regeneration Status of Woody Plant Species in Hurubu Natural Forest, North Shewa, Oromia Region, Ethiopia 埃塞俄比亚奥罗米亚州北舍瓦胡鲁布天然林木本植物的区系组成、结构和再生状况
Q3 Environmental Science Pub Date : 2023-05-01 DOI: 10.2478/jlecol-2023-0005
Hana Tamrat Gebirehiwot, Alemayehu Abera Kedanu, Abenezer Asmamaw Guangul, Megersa Adugna
Abstract Ethiopia harbour the Eastern afromontane and Horn of Africa hotspots of biodiversity. The general objective of this study was to investigate the floristic composition and diversity of species, the structure and the regeneration status of the Hurubu forest. Three parallel transects lines with 1 km length were systematically laid across the forest with an interval of 500 m in south to north direction. Thirty sample quadrants of 20 m × 20 m were placed along transects at an interval of 200 m for mature trees and shrubs, while for the purpose of seedling and sapling inventory, four sub-quadrants of 1 m × 1 m were laid at each corner of the main quadrant. A total of 32 woody species representing 25 families were recorded consisting of trees and shrubs. The lower storey consisted of all woody plant species, except Ekebergia capensis tree species. The middle storey consisted about 14.41 % of the tree species while the upper storey involved only 2.35 % of the total individual trees in the forest. The total basal area of woody plants in Hurubu forest was 90 m2 per ha. The three most important woody species with the highest IVI were Juniperus procera, Osyris quadripartite and Myrsine africana in decreasing order. The general regeneration status of the tree species of the study site was satisfactory at the community level showing a ‘fair’ regeneration status. Therefore, special conservation actions should be implemented for the poorly and not regenerating woody species of the forest.
摘要埃塞俄比亚是东非和非洲之角生物多样性的热点地区。本研究的主要目的是调查胡鲁布森林的区系组成、物种多样性、结构和再生状况。在森林中系统地铺设了三条长1公里的平行样带,从南到北间隔500米。对于成熟的树木和灌木,30个20 m×20 m的样本象限以200 m的间隔沿着样带放置,而为了清点幼苗和树苗,在主象限的每个角落放置了4个1 m×1 m的子象限。共记录了代表25科的32种木本植物,包括树木和灌木。下层由所有木本植物组成,但山核桃除外。中层约占森林树种的14.41%,上层仅占森林单株总数的2.35%。胡鲁布森林的木本植物总基底面积为每公顷90平方米。IVI最高的三个最重要的木本物种依次是圆柏、四裂油树和非洲杨梅。研究地点树种的总体再生状况在社区层面上令人满意,显示出“尚可”的再生状况。因此,应该对森林中再生不良的木本物种采取特别的保护行动。
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引用次数: 1
Review on Factors Affecting Early Survival of Tree /Shrub Seedlings and it’s Remedy in Restoration Sites of Ethiopia 埃塞俄比亚恢复地乔灌木幼苗早期成活的影响因素及补救措施综述
Q3 Environmental Science Pub Date : 2023-05-01 DOI: 10.2478/jlecol-2023-0007
Hana Tamrat Gebirehiwot
Abstract Restoration activities in degraded and/or deforested forest landscapes are common and old occurrences around the world. Tree planting is common in most forest landscape restoration initiatives. In Ethiopia, eight seedling-based landscape restoration options are identified to alleviate land degradation and its consequences. The primary purpose of this work was to review factors affecting the early survival of tree and shrub seedlings and their remedies in the restoration sites of Ethiopia. Drought and moisture stress, low soil fertility, poor seedling quality, weak species site matching, termites, livestock grazing, and seasonal frost are the basic factors that hinder the survival and growth of seedlings in the field. In situ rainwater harvesting structures, fertilizer application, the use of quality seedlings, the right species site matching, and the exclusion of livestock and grazing animals from planted seedlings are the remedies that must be employed to increase the success of tree-based restoration practices. Thus, further investigation of the factors affecting the survival of seedlings in the out-planting sites and remediation accordingly is necessary to ensure the productivity and sustainability of restoration practices in Ethiopia.
在退化和/或毁林的森林景观中,恢复活动在世界范围内是常见和古老的现象。植树在大多数森林景观恢复计划中是常见的。在埃塞俄比亚,确定了八种以苗木为基础的景观恢复方案,以减轻土地退化及其后果。本工作的主要目的是回顾影响埃塞俄比亚恢复地点乔灌木幼苗早期存活的因素及其补救措施。旱涝胁迫、土壤肥力低、苗木质量差、种址匹配弱、白蚁、牲畜放牧、季节性霜冻是田间苗木成活和生长受阻的基本因素。就地雨水收集结构、施肥、使用优质幼苗、正确的物种位点匹配以及将牲畜和放牧动物排除在种植的幼苗之外,这些都是必须采用的补救措施,以提高基于树木的恢复实践的成功率。因此,有必要进一步调查影响外植地幼苗存活的因素并相应地进行补救,以确保埃塞俄比亚恢复做法的生产力和可持续性。
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引用次数: 0
Social Perception of Trees in the Landscape: The Connection Between Attitudes and Visual Preferences 景观中树木的社会感知:态度与视觉偏好之间的联系
Q3 Environmental Science Pub Date : 2023-05-01 DOI: 10.2478/jlecol-2023-0004
Jana Stachová, D. Čermák
Abstract The study presented in this paper uses a representative sample of the Czech population to analyse the relationships between attitudes to trees and preferences for landscapes with trees. We ask whether a positive assessment of the environmental benefits of trees in general and old and dead trees in particular leads to preferences for close-to-nature forms of the tree landscape. The results show that tree landscape preferences are primarily affected by attitudes attached to trees, rather than by sociodemographic factors. People who appreciate the environmental benefits of trees are more likely to prefer transparent and organized landscapes with trees, whereas the more specific environmental attitude appreciating old or dead trees is reflected in higher preferences for wilderness-like landscapes. The results of our research suggest that the perceived environmental benefits of trees are anthropocentric in nature, in a way utilitarian; trees serve people and their environment, and not nature as such.
摘要本文采用捷克人口的代表性样本来分析对树木的态度和对树木景观的偏好之间的关系。我们想知道,对树木,特别是老树和死树的环境效益的积极评估是否会导致对接近自然形式的树木景观的偏好。结果表明,树木景观偏好主要受对树木的态度的影响,而不是受社会人口因素的影响。欣赏树木的环境效益的人更倾向于有树木的透明和有组织的景观,而欣赏老树或死树的更具体的环境态度则反映在对荒野般的景观的更高偏好上。我们的研究结果表明,树木的环境效益在本质上是以人类为中心的,在某种程度上是功利的;树木服务于人类和环境,而不是自然本身。
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引用次数: 0
Sustainable Tourism Planning on Landscape Scale: Case Study from Slovakia (Central Europe) 景观尺度的可持续旅游规划:以斯洛伐克(中欧)为例
Q3 Environmental Science Pub Date : 2023-05-01 DOI: 10.2478/jlecol-2023-0003
I. Belčáková, A. Rácz, H. Ollerová, Lucia Spodniaková
Abstract The European cultural landscape and its traditional values represent a significant condition for recreation and tourism. However, we are aware of the negative consequences of human activity in the past years in rural areas and pay more attention to protecting these values. Modern rural recreation and tourism must be built on scientific background. That is why the presented contribution brings an innovative integrated approach to sustainable rural recreation and tourism model by applying landscape ecological planning methodology with a combination of ecological stability and landscape character assessment. It deals with the qualitative evaluation of the landscape potential of the foothill village of Podkonice in Slovakia and the possibilities of its use in sustainable rural tourism. Determining the potential in confrontation with different forms of tourism activities can help achieve a sustainable tourism concept. The main result of the presented research is the final optimal selection of activities and use of the landscape with regard to the development of tourism. Such a proposal can be used in spatial planning and strategic decision-making processes not only in the study area, but it can be applied in the European context.
欧洲文化景观及其传统价值是休闲和旅游的重要条件。然而,我们意识到过去几年人类活动对农村地区的负面影响,并更加注意保护这些价值。现代乡村休闲旅游必须建立在科学的背景之上。这就是为什么本文提出了一种创新的综合方法,通过应用生态稳定性和景观特征评估相结合的景观生态规划方法来实现可持续的乡村游憩和旅游模式。它涉及斯洛伐克波德科尼斯山麓村景观潜力的定性评价及其在可持续乡村旅游中使用的可能性。确定与不同形式的旅游活动对抗的潜力有助于实现可持续的旅游概念。本研究的主要结果是关于旅游发展的活动和景观利用的最终优化选择。这样的建议不仅可以用于研究区域的空间规划和战略决策过程,而且可以应用于欧洲的环境。
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引用次数: 0
Finding the Corridor Potential Between Protected Areas in a Fragmented Landscape, Gunungkidul Regency, Indonesia 在支离破碎的景观中寻找保护区之间的走廊潜力,印度尼西亚古农基都县
Q3 Environmental Science Pub Date : 2023-05-01 DOI: 10.2478/jlecol-2023-0006
Madina Dwi Panuntun, E. Haryono, L. W. Santosa
Abstract Fragmentation impacts disconnecting protected areas in Gunungkidul Regency, namely Bunder Forest Park (BFP) and the Paliyan Wildlife Reserve (PWR). This also decreases the carrying capacity in PWR, degrading the Long-Tailed Macaque (LTM) habitat. Therefore, this research aims to analyze the landscape structure between Protected areas, the habitat suitability of LTM in Gunungkidul Regency, and determine connectivity potential as an environmental management strategy. applied for this research to investigates the structure and fragmentation using Fragstat 4.2 and ArcGIS 10.8 software. Meanwhile, scoring and weighting methods analyze the LTM habitat, while Least Cost Patch Analysis (LCPA) supported by ArcGIS 10.8 determine the corridor. The results showed that the research land cover changed from 1999-2021. Agriculture, scrubs, and settlements are the dominant land cover suspected to cause forest fragmentation. Based on the habitat suitability analysis using parameters such as land cover, vegetation density, slope, altitude, distance from the river, and sources of threats, most of the research area is intermediate habitat suitability class. These findings can be integrated to determine connectivity between protected areas as one of the environment management strategies. Good forest cover can be used to designate a corridor that has the greatest potential to be developed between BFP and PWR and should be maintained as a wildlife crossing.
摘要碎片化影响断开古农基都县的保护区,即Bunder森林公园(BFP)和Paliyan野生动物保护区(PWR)。这也降低了压水堆的承载能力,降低了长尾猕猴(LTM)的栖息地。因此,本研究旨在分析保护区之间的景观结构、古农基杜尔县LTM的栖息地适宜性,并确定连通性潜力作为环境管理策略。应用Fragstat 4.2和ArcGIS 10.8软件对其结构和碎片进行了研究。同时,评分和加权方法分析LTM栖息地,而ArcGIS 10.8支持的最小成本补丁分析(LCPA)确定走廊。结果表明,1999年-2021年,研究区土地覆盖发生了变化。农业、灌木丛和定居点是被怀疑导致森林破碎化的主要土地覆盖。根据使用土地覆盖、植被密度、坡度、海拔、与河流的距离和威胁源等参数进行的栖息地适宜性分析,大多数研究区域属于中等栖息地适宜性类别。这些发现可以作为环境管理战略之一加以整合,以确定保护区之间的连通性。良好的森林覆盖率可用于指定BFP和PWR之间最有潜力开发的走廊,并应作为野生动物过境点进行维护。
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引用次数: 0
Spatiotemporal Characterization Of Land Surface Temperature In Relation Landuse/Cover: A Spatial Autocorrelation Approach 土地利用/覆被关系下地表温度的时空特征:空间自相关方法
Q3 Environmental Science Pub Date : 2023-03-08 DOI: 10.2478/jlecol-2023-0001
Diksha, Maya Kumari, R. Kumari
Abstract The land use and land cover (LULC) characteristics of Ghaziabad have experienced dynamic changes because of the city’s ongoing industrialization and urbanisation processes. These shifts can be directly attributed to human actions. These shifts can be directly attributed to human actions. Thermal variation in the study area necessitates LULC analysis. Landsat and Sentinel satellite data for 2011 and 2021 were used to map LULC, estimate land surface temperature (LST) and analysis spatial autocorrelation among the variables using ArcGIS software and the Google Earth Engine (GEE) cloud platform. A sharp descent is observed in the cropland while built-up area has increased during the study period. With the increase in the built-up surface in the area, the ambient temperatures have also increased from 18.70 °C in 2011 to 21.81 °C in 2021 leading to urban heat island effect. At all spatial scales, spatial autocorrelation is a characteristic property of most ecological parameters. The spatial clustering of LST in an ecosystem can play a crucial role in determining the dynamics of LULC.The Moran’s, I show that there is a considerable level of spatial autocorrelation in the values of LST and highly clustered pattern for both the years. Monitoring and understanding the surface thermal environment is crucial to discerning the causes of climate change.
摘要由于城市持续的工业化和城市化进程,加齐阿巴德的土地利用和土地覆盖特征经历了动态变化。这些变化可以直接归因于人类的行为。这些变化可以直接归因于人类的行为。研究区域的热变化需要进行LULC分析。2011年和2021年的Landsat和Sentinel卫星数据用于绘制LULC地图,估计地表温度(LST),并使用ArcGIS软件和谷歌地球引擎(GEE)云平台分析变量之间的空间自相关。在研究期间,农田急剧下降,而建成区面积增加。随着该地区建成区面积的增加,环境温度也从2011年的18.70°C上升到2021年的21.81°C,导致城市热岛效应。在所有空间尺度上,空间自相关是大多数生态参数的特征性质。LST在生态系统中的空间聚类可以在决定LULC的动力学方面发挥关键作用。Moran的研究表明,这两年的LST值和高度聚类模式都存在相当程度的空间自相关。监测和了解地表热环境对于查明气候变化的原因至关重要。
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引用次数: 6
Application of the CZ-Globio Model in Beskydy Protected Landscape Area CZ-Globio模型在Beskydy景观保护区中的应用
Q3 Environmental Science Pub Date : 2023-03-08 DOI: 10.2478/jlecol-2023-0002
M. Plánka, V. Pechanec
Abstract Spatially oriented simulation models have not yet been applied to the territory of Beskydy Protected Landscape Area (PLA) to assess the state of biodiversity at a local scale. The CZ-GLOBIO model, which is adapted to the conditions of the Czech Republic, was used as a tool to assess habitat degradation using four selected drivers. The aim of the article is to apply the CZ-GLOBIO model for biodiversity status assessment in Beskydy PLA at the biotope level using detailed habitat data. The result of the application of the model is the evaluation of the state of biodiversity and the risk of its degradation using the Mean Species Abundance (MSA) index. Values are obtained for each segment as well as the average value for the entire territory. The results of biodiversity modelling are available by five maps and five tables with output Mean Species Abundance (MSA) values. Understanding the spatial distribution of the resulting MSA values contributes to the landscape-level habitat assessment of Beskydy PLA. This can serve as a basis for further policy decisions in the environmental field.
摘要:面向空间的模拟模型尚未应用于Beskydy保护景观区(PLA),以评估当地范围内的生物多样性状况。适用于捷克共和国条件的CZ-GLOBIO模型被用作评估栖息地退化的工具,使用了四个选定的驱动因素。本文的目的是利用详细的栖息地数据,将CZ-GLOBIO模型应用于Beskydy PLA的生物多样性状况评估。该模型的应用结果是使用平均物种丰度(MSA)指数评估生物多样性的状态及其退化风险。获得每个分段的值以及整个区域的平均值。生物多样性建模的结果可通过五张地图和五张具有输出平均物种丰度(MSA)值的表格获得。了解由此产生的MSA值的空间分布有助于Beskydy PLA的景观级栖息地评估。这可以作为环境领域进一步政策决策的基础。
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引用次数: 0
期刊
Journal of Landscape Ecology(Czech Republic)
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