Multi-Scale Spatiotemporal Change Characteristics Analysis of High-Frequency Disturbance Forest Ecosystem Based on Improved Spatiotemporal Cube Model

High-frequency disturbance forest ecosystems undergo complex and frequent changes at various spatiotemporal scales owing to natural and anthropogenic factors. Effectively capturing the characteristics of these spatiotemporal changes from satellite image time series is a powerful and practical means for determining their causes and predicting their trends. Herein, we combined the spatiotemporal cube and vegetation indices to develop the improved spatiotemporal cube (IST-cube) model. We used this to acquire the spatiotemporal dynamics of forest ecosystems from 1987 to 2020 in the study area and then classified it into four spatiotemporal scales. The results showed that the cube-core only exists in the increasing IST-cubes, which are distributed in residential areas and forests. The length of the IST-cube implies the duration of triggers. Human activities result in long-term small-scope IST-cubes, and the impact in the vicinity of residential areas is increasing while there is no change within. Meteorological disasters cause short-term, large scope, and irregular impacts. Land use type change causes short-term small scope IST-cubes and a regular impact. Overall, we report the robustness and strength of the IST-cube model in capturing spatiotemporal changes in forest ecosystems, providing a novel method to examine complex changes in forest ecosystems via remote sensing.

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TREE LITTER PRODUCTION AND DECOMPOSITION IN FOREST ECOSYSTEMS UNDER BACKGROUND CONDITIONS AND INDUSTRIAL AIR POLLUTION

Forest science issues ◽

10.31509/2658-607x-202143-87 ◽

2021 ◽

Vol 4 (3) ◽

pp. 1-52

Author(s):

E. A. Ivanova ◽

Keyword(s):

Air Pollution ◽

Chemical Composition ◽

Forest Ecosystems ◽

Point Sources ◽

Anthropogenic Factors ◽

Litter Production ◽

Industrial Air Pollution ◽

Tree Litter ◽

The Impact ◽

Natural And Anthropogenic Factors

The paper provides an overview of Russian and foreign articles devoted to the study of the tree litter production and decomposition in forest ecosystems subjected to natural and anthropogenic factors. The spatial variability (below crown and between crown spaces) and the seasonal features of the tree litter production, its chemical composition and decomposition processes are poorly studied. In addition, most of the works, both in native and foreign countries science, highlight the influence of natural factors on the litter production and the processes of its decomposition, while the impact of point sources of industrial air pollution is rarely considered. The study of the variability of the size, fractional and chemical composition and processes of decomposition of tree litter under conditions of industrial air pollution is important for predicting the dynamics of forest ecosystems subjected to the combined action of natural and anthropogenic factors and reducing the negative impact of production processes on forests.

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ASSESSMENT OF THE ENVIRONMENTAL SAFETY FACTORS OF PLAY-GROUNDS USING THE RANK CORRELATION METHOD

Integrated Technologies and Energy Saving ◽

10.20998/2078-5364.2021.2.06 ◽

2021 ◽

pp. 49-57

Author(s):

V. Stadnik

Keyword(s):

Rapid Development ◽

Rank Correlation ◽

Environmental Safety ◽

Pollutant Emissions ◽

Anthropogenic Factors ◽

Residential Areas ◽

Factors Affecting ◽

Vehicle Traffic ◽

Rank Correlation Method ◽

The Impact

The process of rapid development in modern cities has led to a significant number of playgrounds being located in confined areas, near roads with heavy vehicle traffic (including tram tracks), next to short-term parking spaces and refuse containers. Particular attention is paid to unauthorised parking which is caused by a lack of designated parking spaces. In addition, in residential areas of modern megacities there is a lot of infill development, which is an additional source of noise and dust. Thus, a significant number of playgrounds are located in areas with excessive anthropogenic load. The materials presented in the article describe the current condition of playgrounds in most big cities of Ukraine. Particular importance is attached to the factors which are connected with vehicle traffic, for example noise pollution, air dustiness and pollutant emissions. At the first stage, a list of factors affecting the environmental safety of children's playgrounds in urbanised areas was compiled and analysed. The next stage involves the development of a questionnaire and the direct assessment of the influencing factors by the experts involved. The article considers the factors that are rarely considered in the study of the impact of individual anthropogenic factors of the environment on public health, however, in modern conditions they cannot be neglected. The final stage consists of data processing and formation of conclusions. Using the method of rank correlation, the main factors of influence on the objects of research are identified. The results of the research stated in the article can be used in further study of the subject and in the development of methods to eliminate the influence of the most significant factors affecting the ecological safety of children's playgrounds.

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IMPACT OF CLIMATE CHANGE ON THE FOREST RESOURCES OF THE REPUBLIC OF BASHKORTOSTAN

Forestry Engineering Journal ◽

10.34220/issn.2222-7962/2020.4/8 ◽

2021 ◽

Vol 10 (4) ◽

pp. 99-109

Author(s):

Regina Bayturina ◽

Aydar Gabdelhakov ◽

Olga Khalikova ◽

Zagir Rahmatullin ◽

Azat Timer'yanov

Keyword(s):

Climate Change ◽

Climate Changes ◽

Forest Ecosystems ◽

Forest Resources ◽

Anthropogenic Factors ◽

Soil Conditions ◽

Impact Of Climate Change ◽

Republic Of Bashkortostan ◽

The Republic ◽

The Impact

The paper deals with the impact of climate change on the forest resources of the Republic of Bashkortostan. The basis of forest cover is formed by stands with a predominance of pine, spruce, birch, linden, alder, aspen, and oak. Climate changes directly or indirectly affect the state of forest ecosystems and, as a result, the development of the entire forestry complex of the Republic. The climate affects the productivity, species composition of forests, as well as their resistance to destructive natural and anthropogenic factors. One of the most pressing issues today is the assessment of the significance of the ongoing climate changes for forest ecosystems, both in the field of fundamental research and in the planning of socio-economic development of regions. Indicator plants confirm ecological displacement of the distribution areas of plant species due to changes in temperature and hydrological regimes, as well as anthropogenic factors. Proceeding from the fact that the type of forest is derived from climate, terrain, groundwater level, soil conditions, there is a problem of forecasting the climatically determined dynamics of the forest based on the current relief of the area and soils in the Republic of Bashkortostan

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The Impact of High-Frequency Surface Weather Observations on Short-Term Probabilistic Forecasts of Ceiling and Visibility

Journal of Applied Meteorology ◽

10.1175/1520-0450(2004)043<0145:tiohsw>2.0.co;2 ◽

2004 ◽

Vol 43 (1) ◽

pp. 145-156 ◽

Cited By ~ 8

Author(s):

Stephen M. Leyton ◽

J. Michael Fritsch

Keyword(s):

High Frequency ◽

Short Term ◽

Weather Observations ◽

Probabilistic Forecasts ◽

Surface Weather ◽

The Impact

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Biodiversity or bioenergy: is deadwood conservation an environmental issue for French forest owners?1This article is one of a selection of papers from the International Symposium on Dynamics and Ecological Services of Deadwood in Forest Ecosystems.

Canadian Journal of Forest Research ◽

10.1139/x2012-073 ◽

2012 ◽

Vol 42 (8) ◽

pp. 1491-1502 ◽

Cited By ~ 3

Author(s):

Philippe Deuffic ◽

Sandrine Lyser

Keyword(s):

Forest Ecosystems ◽

Qualitative Interviews ◽

Wood Decay ◽

Local Scale ◽

Decision Makers ◽

Short Term ◽

Forest Owners ◽

Positive Attitudes ◽

The Impact ◽

Selection Of

Forest owners are confronted with contradictory views on the importance of deadwood. Environmentalists argue that it should be left in the forest to conserve biodiversity, provide a habitat for specific fauna and flora, and maintain soil quality through wood decay. Conversely, industrial stakeholders, and some public decision makers, advocate harvesting deadwood. Based on a sociological survey and qualitative interviews, we first analyzed the detailed environmental opinions and values of four groups of French foresters as well as their attitudes towards biodiversity, in particular regarding deadwood conservation. We identified various types of attitudes towards deadwood, which could be seen as waste, an unprofitable by-product, a meaningless entity, or a key part of the ecosystem. We then studied the arguments leading them to choose between deadwood conservation and deadwood harvesting for bioenergy production. On one hand, foresters are interested in short-term profitability and pest control, while others fear potential loss of fertility. Finally, the article shows that specific approaches to deadwood conservation ought to be negotiated at a local scale, pending further scientific investigation into the impact of deadwood on biodiversity and the development of more positive attitudes toward ecological concerns in the forest owners’ community.

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Natural Disturbance Dynamics Analysis for Ecosystem-Based Management—FORDISMAN

Forests ◽

10.3390/f11060663 ◽

2020 ◽

Vol 11 (6) ◽

pp. 663

Author(s):

Kalev Jõgiste ◽

Lee E. Frelich ◽

Floortje Vodde ◽

Ahto Kangur ◽

Marek Metslaid ◽

...

Keyword(s):

Forest Ecosystems ◽

Natural Disturbance ◽

Anthropogenic Factors ◽

Ecosystem Resilience ◽

Special Issue ◽

Spatial And Temporal Scales ◽

Wide Range ◽

Functional Features ◽

Promising Line ◽

The Impact

Forest ecosystems are shaped by disturbances and functional features of vegetation recovery after disturbances. There is considerable variation in basic disturbance characteristics, magnitude, severity, and intensity. Disturbance legacies provide possible explanations for ecosystem resilience. The impact (length and strength) of the pool of ecosystem legacies and how they vary at different spatial and temporal scales is a most promising line of further research. Analyses of successional trajectories, ecosystem memory, and novel ecosystems are required to improve modelling in support of forests. There is growing evidence that managing ecosystem legacies can act as a driver in adaptive management to achieve goals in forestry. Managers can adapt to climate change and new conditions through anticipatory or transformational strategies of ecosystem management. The papers presented in this Special Issue covers a wide range of topics, including the impact of herbivores, wind, and anthropogenic factors, on ecosystem resilience.

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ASSESSING IMPACTS OF CLIMATE CHANGE ON TEAK AND SAL LANDSCAPE USING MODIS TIME SERIES DATA

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-5-305-2018 ◽

2018 ◽

Vol XLII-5 ◽

pp. 305-313 ◽

Cited By ~ 1

Author(s):

M. K. Patasaraiya ◽

B. Sinha ◽

J. Bisaria ◽

S. Saran ◽

R. K. Jaiswal

Keyword(s):

Climate Change ◽

Time Series ◽

Forest Ecosystems ◽

Time Series Data ◽

Vegetation Indices ◽

Central India ◽

Series Data ◽

Impact Of Climate Change ◽

Increasing Trend ◽

The Impact

Abstract. Climate change poses a severe threat to the forest ecosystems by impacting its productivity, species composition and forest biodiversity at global and regional level. The scientific community all over the world is using remote sensing techniques to monitor and assess the impact of climate change on forest ecosystems. The consistent time series data provided by MODIS is immensely used for developing a different type of Vegetation indices like NDVI (Normalized difference vegetation indices) products at different spatial and temporal resolution. These vegetation indices have significant potential to detect forest growth and health, vegetation seasonality and different phenological events like budding and flowering. The current study aims to understand the impact of climate change on Teak and Sal forest of STR (Satpura tiger reserve) in central India by using Landsat and MODIS time series data. The rationale for taking STR as study site was to attribute the changes exclusively to climate change as there is no anthropogenic disturbance in STR. A change detection analysis was carried out to detect changes between the period 2017 and 1990 using Landsat data of October month. To understand the inter-annual and seasonal variation of Teak and Sal forests, freely available MOD13Q1 product (250m, 16 days’ interval) was used to extract NDVI values for each month and four seasons (DJF, JJAS, ON, MAM) for the period 2000 to 2015. The climatic data (rainfall and temperature) was sourced from IMD (India Meteorological Department) at different resolutions (1, 0.5 and 0.25 degree) for the given period of the study. A correlation analysis was done to establish a causal relationship between climate variable (temperature and rainfall) and vegetation health (NDVI) on a different temporal scale of annual, seasonal and month. The study found an increasing trend in annual mean temperature and no consistent trend in total annual rainfall over the period 2000 to 2015. The maximum percentage change was observed in minimum temperature over the period 2000 to 2015. The average annual NDVI of Teak and Sal forests showed an increasing trend however, no trend was observed in seasonal and monthly NDVI over the same period. The maximum and minimum NDVI was found in the post-monsoon months (ON) and summer months (MAM) respectively. As STR is a Teak and Sal dominated landscape, the findings of the current study can also be applied in developing silvicultural and adaptation strategies for other Teak and Sal dominated landscapes of central India.

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Short-term mangrove browsing by feral water buffalo: conflict between natural resources, wildlife and subsistence interests?

Environmental Conservation ◽

10.1017/s0376892906003080 ◽

2006 ◽

Vol 33 (2) ◽

pp. 157-163 ◽

Cited By ~ 10

Author(s):

F. DAHDOUH-GUEBAS ◽

D. VRANCKEN ◽

T. RAVISHANKAR ◽

N. KOEDAM

Keyword(s):

Mangrove Forest ◽

Forest Ecosystems ◽

Water Buffalo ◽

Forest Department ◽

Natural Conditions ◽

Short Term ◽

Avicennia Alba ◽

Negative Impacts ◽

The Impact ◽

Forest Managers

Management of the natural environment and its resources leads to conflicts between different stake-holders worldwide. Recently mangrove browsing by feral water buffalo in the East-Godavari Delta (India) has been considered a threat to the regeneration of mangroves by the local Forest Department, which led to conflicts between the authorities and local herds-men who have an ancient tradition involving feral water buffalo. The impact of browsing and grazing of mangroves by feral water buffalo was monitored. Feral water buffalo consumed mangroves, but not to the extent claimed by the Forest Department, prefering Avicennia alba, A. marina and A. officinalis. Their browsing behaviour was not linked to a height zone, and buffalo preferred the fresh leaves from previously undamaged branches. Under experimental and natural conditions, browsing induced compensatory regrowth in Avicennia. The carrying capacity of the mangrove appears to be sufficient to accumulate impact. There are both positive and negative impacts of livestock animals on forest ecosystems, and sociocultural consequences must be carefully assessed prior to enforcing a change in natural resource or environmental management. Before banning feral water buffalo from the mangrove, forest managers should confront their prejudices about the real impact of feral herbivores on these forests.

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