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Article
Publication date: 8 July 2020

Yang Li, Yaochen Qin, Liqun Ma and Ziwu Pan

The ecological environment of the Loess Plateau, China, is extremely fragile under the context of global warming. Over the past two decades, the vegetation of the Loess…

Abstract

Purpose

The ecological environment of the Loess Plateau, China, is extremely fragile under the context of global warming. Over the past two decades, the vegetation of the Loess Plateau has undergone great changes. This paper aims to clarify the response mechanisms of vegetation to climate change, to provide support for the restoration and environmental treatment of vegetation on the Loess Plateau.

Design/methodology/approach

The Savitsky–Golay (S-G) filtering algorithm was used to reconstruct time series of moderate resolution imaging spectroradiometer (MODIS) 13A2 data. Combined with trend analysis and partial correlation analysis, the influence of climate change on the phenology and enhanced vegetation index (EVI) during the growing season was described.

Findings

The S-G filtering algorithm is suitable for EVI reconstruction of the Loess Plateau. The date of start of growing season was found to gradually later along the Southeast–Northwest direction, whereas the date of the end of the growing season showed the opposite pattern and the length of the growing season gradually shortened. Vegetation EVI values decreased gradually from Southeast to Northwest. Vegetation changed significantly and showed clear differentiation according to different topographic factors. Vegetation correlated positively with precipitation from April to July and with temperature from August to November.

Originality/value

This study provides technical support for ecological environmental assessment, restoration of regional vegetation coverage and environmental governance of the Loess Plateau over the past two decades. It also provides theoretical support for the prediction model of vegetation phenology changes based on remote sensing data.

Details

International Journal of Climate Change Strategies and Management, vol. 12 no. 4
Type: Research Article
ISSN: 1756-8692

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Article
Publication date: 1 March 2003

Arnon Karnieli and Giorgio Dall'Olmo

Year‐to‐year fluctuations of rainfall in the northern Negev desert provide an opportunity to characterize and assess the temporal dynamics of desertification, phenology

Abstract

Year‐to‐year fluctuations of rainfall in the northern Negev desert provide an opportunity to characterize and assess the temporal dynamics of desertification, phenology, and drought processes. Such information was retrieved and analyzed by combined use of satellite imageries in the reflectivity and thermal spectral bands. Data covering four years of coarse spatial resolution and images from a high revisit time satellite, namely the NOAA‐14, were used. The images were processed to produce the normalized difference vegetation index (NDVI) and the land surface temperature (LST). These measures were applied to the sand field in the northwestern Negev (Israel), which is almost totally covered by biological soil crusts, and to an adjacent region in Sinai (Egypt), consisting mainly of bare dune sands. Various manipulations of the data were applied. Time series presentation of the NDVI and LST reveals that the NDVI values correspond to the reaction of the vegetation to rainfall and that LST values represent seasonal climatic fluctuation. Scatterplot analysis of LST vs NDVI demonstrates the following: the two different biomes (Sinai and the Negev) exhibit different yearly variation of the phenological patterns (two seasons in Sinai moving along the LST axis, and three seasons in the Negev, where the NDVI axis represents the growing season); the Sinai has an ecosystem similar to that found in the Sahara, while the Negev, only a few kilometers away, has an ecosystem similar to the one found in the Sahel; and drought indicators were derived by using several geometrical expressions based on the two extreme points of the LST‐NDVI scatterplot. The later analysis led to a discrimination function that aims to distinguish between the drought years and the wet years in both biomes. Results from the current study show that a great deal of information on dryland ecosystems can be derived from four, out of five, NOAA/AVHRR spectral bands. The NDVI is derived from the red and the near‐infrared bands and the LST from the two thermal bands. Combined use of these two products provides more information than any product alone.

Details

Management of Environmental Quality: An International Journal, vol. 14 no. 1
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 13 February 2009

Lan Yi, Wenhui You, Chuan Li and Xuemou Wu

The purpose of this paper is to state the pansystems ecology, management and related principles and methods of knowledge rediscovery. Related contents include: generalized…

Abstract

Purpose

The purpose of this paper is to state the pansystems ecology, management and related principles and methods of knowledge rediscovery. Related contents include: generalized life, vitality, resource, circulation, environs, periodicity, phenology, eco‐niche in pansystems space, evolution, intelligence development, philosophy of science, epistemology, psychology, pedagogy and teaching.

Design/methodology/approach

The paper is an application of pansystems principles to approach an ecology‐styled world outlook and methodology, related topics include: pansystems rediscovery to ecology and the world; generalized relativity, resource, environs, ecology, circulation, life; pansystems models on evolution, eco‐niche, pyramid law, recap law, phenology, management and knowledge rediscovery.

Findings

All of the logoi concerned with are reduced to the actualization of pansystems variational principle and related OR‐concretion. The pansystems ecology presents a new outlook to world, society, management, methodology, pedagogy and knowledge rediscovery.

Originality/value

Provides the framework and concretion principles of pansystems research on generalized resource, circulation, environs, ecology and related applications. They lead to some new comprehension of evolution, psychology, epistemology, society, management.

Details

Kybernetes, vol. 38 no. 1/2
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 16 May 2016

Juliet Gwenzi, Emmanuel Mashonjowa, Paramu L. Mafongoya, Donald T. Rwasoka and Kees Stigter

This paper aims to document indigenous knowledge systems (IKS) used for short- and long-range rainfall prediction by small holder farmers in three communities of Guruve…

Abstract

Purpose

This paper aims to document indigenous knowledge systems (IKS) used for short- and long-range rainfall prediction by small holder farmers in three communities of Guruve District, in north-eastern Zimbabwe. The study also investigated farmers’ perceptions of contemporary forecasts and the reliability of both IKS and contemporary forecasts.

Design/methodology/approach

Data were collected among small holder farmers in Guruve District using household interviews and focus group discussions in three wards in the district, grouped according to their agro-climate into high and low rainfall areas. To get an expert view of the issues, key informant interviews were held with key agricultural extension personnel and traditional leaders.

Findings

Results obtained showed show high dependence on IKS-based forecasts in the district. Over 80 per cent of the farmers used at least one form of IKS for short- and long-range forecasting, as they are easily understood and applicable to their local situations. Tree phenology, migration and behaviour of some bird species and insects, and observation of atmospheric phenomena were the common indicators used. Tree phenology was the most common with over 80 per cent of farmers using this indicator. While some respondents (60 per cent) viewed forecasts derived from IKS as more reliable than science-based forecasts, 69 per cent preferred an integration of the two methods.

Originality/value

The simplicity and location specificity of IKS-based forecasts makes them potentially useful to smallholder farmers, climate scientists and policymakers in tracking change in these areas for more effective climate change response strategies and policymaking.

Details

International Journal of Climate Change Strategies and Management, vol. 8 no. 3
Type: Research Article
ISSN: 1756-8692

Keywords

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Article
Publication date: 14 September 2017

Iman Hesam Arefi, Mehri Saffari and Rooholla Moradi

The purpose of this study is to simulate the climate change impacts on winter wheat production and evaluate the possibilities of using various varieties and shifting…

Abstract

Purpose

The purpose of this study is to simulate the climate change impacts on winter wheat production and evaluate the possibilities of using various varieties and shifting planting date as two climate change adaptation strategies in Kerman Province, Iran.

Design/methodology/approach

Two types of global circulation model and three scenarios for three periods were used. Daily climatic parameters were generated by LARS-WG (Long Ashton Research Station-Weather Generator). The CERES-wheat model was used to simulate future winter wheat growth, development and production.

Findings

The results showed that CO2 had no effect on the phenology of winter wheat, and the negative impact of temperature on the grain yield was higher than the positive effect of CO2 enrichment. The length of the reproductive growth period of the winter wheat was significantly shortened as affected by the negative impacts of rise in temperature. The simulated results indicated that the grain yield of common (medium maturing) variety of winter wheat will decline, ranging from −0.27 to −18.71 per cent according to future climate changes. Adaptation strategies showed that the early maturing variety had a higher and more stable grain yield under climate change conditions than medium and delayed maturing varieties. Earlier planting date (20 October) increased wheat grain yield under future climatic conditions than common (November 5) planting date. In reverse, later planting (November 20) would accelerate harmful effects of climate change on wheat grain yield.

Originality/value

The results highlighted the potential of early maturing variety and early planting date as the appropriate agronomical approaches for mitigating harmful impacts of climate change on winter wheat production in arid regions.

Details

International Journal of Climate Change Strategies and Management, vol. 9 no. 6
Type: Research Article
ISSN: 1756-8692

Keywords

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Abstract

Purpose

This paper aims to characterize the sexual maturation of M. flexuosa plantations in Tulumayo.

Design/methodology/approach

The methodology in this paper was selection of three plots in open field and usage of different densities of planting, after the maturation of the first plants, we began the quarterly evaluation. There was total 28 evaluations in seven years of age.

Findings

As a result, it was determined that at 12 years, the plots with lower density presented a greater number of mature individuals, with a predominance of female palms that produced an average of four bunches of fruit per year, and males five inflorescences. In addition, 15% of adult female plants went dormant, whereas males accounted for 3.4%. Reproductive cycles began in September and culminated in October of the following year, which were synchronized with rainfall.

Originality/value

Planting density was a determining factor in the early maturity of M. flexuosa and sustainable plantation management.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

Keywords

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Article
Publication date: 23 August 2013

Bright Chisadza, Mike J. Tumbare, Innocent Nhapi and Washington R. Nyabeze

The purpose of this paper is to identify, analyse and document local traditional indicators used in drought forecasting in the Mzingwane Catchment and to assess the…

Abstract

Purpose

The purpose of this paper is to identify, analyse and document local traditional indicators used in drought forecasting in the Mzingwane Catchment and to assess the possibility of integrating traditional rainfall forecasting, using the local traditional indicators, with meteorological forecasting methods.

Design/methodology/approach

Self-administered structured questionnaires were conducted on 101 respondents in four districts of the Mzingwane Catchment area, namely, Beitbridge, Mangwe, Esighodini and Mwenezi from February to August 2012. In addition, key informant interviews and focus group discussions were also used in data collection and the collected data were analysed for drought history and demographics; drought adaptation and the use of drought forecasting methods in the catchment using Statistical Package for Social Science.

Findings

The paper reveals the growing importance of precipitation forecasts among Mzingwane communities, particularly the amount, timing, duration and distribution of rainfall. Rainfall was cited as the major cause of drought by 98 per cent of the respondents in the catchment. Whilst meteorological rainfall forecasts are available through various channels, they are not readily accessible to rural communities. Furthermore, they are not very reliable at local level. The paper shows that communities in the Mzingwane Catchment still regard local traditional knowledge forecasting as their primary source of weather forecasts. The paper finds that plant phenology is widely used by the local communities in the four districts for drought forecasting. Early and significant flowering of Mopane trees (Colophospermum mopane) from September to December has been identified to be one of the signals of poor rainfall season in respect to quantity and distribution and subsequent drought. Late and less significant flowering of Umtopi trees (Boscia albitrunca) from September to December also signals a poor rainfall season.

Originality/value

The paper fulfils an identified need to study and document useful traditional drought indicators. Furthermore, the paper provides a platform for possible integration of traditional drought forecasting and meteorological forecasting and ensure sustainable rural livelihood development. The paper is useful to both meteorological researchers and resource-constrained communities in Mzingwane Catchment.

Details

Disaster Prevention and Management, vol. 22 no. 4
Type: Research Article
ISSN: 0965-3562

Keywords

Content available
Article
Publication date: 6 September 2018

Behdad Alizadeh and James Hitchmough

Urban landscapes play a significant role in supporting municipal, ecological and social systems. Besides, valuable environmental services and urban green spaces provide…

Abstract

Purpose

Urban landscapes play a significant role in supporting municipal, ecological and social systems. Besides, valuable environmental services and urban green spaces provide social and psychological services, very important for the liveability of modern cities and the well-being of urban residents. It is clear that the area of green space in a city, the method of designing urban landscape and access to urban green space potentially affect the health, happiness, comfort, safety and security of urban dwellers. Urban landscape plays a significant role in providing habitats for wildlife, and an important vegetation type in doing this is species-rich herbaceous vegetation that provides pollen and nectar plus physical habitat for native fauna. Any factor that makes an impression on the urban landscape (such as climate change) will affect people’s lives directly or indirectly. There is a universal consensus that the temperature has increased in most of the world over the past century the investigation of climate change impacts on the urban landscape is the purpose of this study.

Findings

Understanding the process of climate change adaptation is necessary to design plant communities for use in public landscapes. Increased CO2 and air temperature in conjunction with the changing rainfall conditions, as the three important factors of climate change, potentially alter almost all world ecosystems. Climate change provides new opportunities, and in some cases, an obligate need to use non-native plant species in conjunction with native plant species, not only to reduce the side effects of climate change but also to increase the species diversity and aesthetic value in meadow-like naturalistic planting design.

Originality/value

The authors confirm that this work is original and has not been published elsewhere. In this paper, the authors report on the effects of climate change on urban landscape and suggest different kind of solutions to reduce the effects. The paper should be of interest to readers in the areas of landscape architecture, landscape ecologist, landscape planner, landscape managers and environmental designer.

Details

International Journal of Climate Change Strategies and Management, vol. 11 no. 2
Type: Research Article
ISSN: 1756-8692

Keywords

Content available
Article
Publication date: 24 October 2018

Mariusz Maciejczak and Jakub Mikiciuk

The purpose of this paper is to identify factors resulting from climate change that could impact the cost-effectiveness and development of viticulture in Poland. Climate…

Abstract

Purpose

The purpose of this paper is to identify factors resulting from climate change that could impact the cost-effectiveness and development of viticulture in Poland. Climate change is a crucial challenge for the global wine industry. It has the potential to shift the centre of gravity of viticulture from well-developed regions to new ones, including Poland.

Design/methodology/approach

Two main methods of data collection were applied: computer assisted telephone interviewing and computer assisted personal interview. A structured questionnaire was drafted, piloted and sent to farms randomly selected to represent wine producers from different wine regions of Poland. The linear probability model was used to determine the factors influencing cost-effectiveness in viticulture production. Data were calculated by using SAS software.

Findings

Current and future climate change factors could influence the cost-effectiveness and growth of viticulture in Poland. The exploitation of these opportunities will require the development and implementation of new policies and practices at the farm level, which could also promote innovation in the sector. Furthermore, wine growers according to the increased risk of the unfavourable abiotic and biotic production conditions would be forced to undertake the adaptation strategies to limit the risk of lowering the cost-effectiveness.

Originality/value

This study identifies viticulture and winemaking opportunities for new regions such as Poland. The challenges involved in managing this transition are discussed.

Details

International Journal of Climate Change Strategies and Management, vol. 11 no. 2
Type: Research Article
ISSN: 1756-8692

Keywords

Content available
Article
Publication date: 13 January 2020

Laxmi Dutt Bhatta, Erica Udas, Babar Khan, Anila Ajmal, Roheela Amir and Sunita Ranabhat

The purpose of this paper is to understand local perceptions on climate change and its impacts on biodiversity, rangeland, agriculture and human health.

Abstract

Purpose

The purpose of this paper is to understand local perceptions on climate change and its impacts on biodiversity, rangeland, agriculture and human health.

Design/methodology/approach

A household survey with 300 interviewees and focus group discussions with key stakeholders were conducted and validated at two steps, using the climate data from the nearest weather stations and reviewing literatures, to correlate the local perceptions on climate change and its impacts.

Findings

Majority of the respondents reported an increase in temperature and change in the precipitation pattern with increased hazardous incidences such as floods, avalanches and landslides. Climate change directly impacted plant distribution, species composition, disease and pest infestation, forage availability, agricultural productivity and human health risks related to infectious vector-borne diseases.

Research limitations/implications

Because of the remoteness and difficult terrain, there are insufficient local weather stations in the mountains providing inadequate scientific data, thus requiring extrapolation from nearest stations for long-term climate data monitoring.

Practical implications

The research findings recommend taking immediate actions to develop local climate change adaptation strategies through a participatory approach that would enable local communities to strengthen their adaptive capacity and resilience.

Social implications

Local knowledge-based perceptions on climate change and its impacts on social, ecological and economic sectors could help scientists, practitioners and policymakers to understand the ground reality and respond accordingly through effective planning and implementing adaptive measures including policy formulation.

Originality/value

This research focuses on combining local knowledge-based perceptions and climate science to elaborate the impacts of climate change in a localised context in Rakaposhi Valley in Karakoram Mountains of Pakistan.

Details

International Journal of Climate Change Strategies and Management, vol. 12 no. 2
Type: Research Article
ISSN: 1756-8692

Keywords

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