scholarly journals Strong subsurface soil temperature feedbacks on summer climate variability over the arid/semi-arid regions of East Asia

2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Lingyun Wu ◽  
Jingyong Zhang
2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nancy Omolo ◽  
Paramu L. Mafongoya

Purpose The purpose of this paper is to investigate the relationship between gender and social capital in adapting to climate variability in the arid and semi-arid regions in Turkana in Kenya. Design/methodology/approach This paper undertook literature review of secondary data sources, conducted focus group discussions (FGDs) and key informant interviews (KIIs). The statistical package for the social sciences (SPSS) was used to analyze data for the quantitative part of the paper. Findings Vulnerability is influenced by age, gender, education and disability. Elderly women are considered to be the most vulnerable to climate variability and change because they are the poorest in the community, followed by elderly men, the disabled, female-headed households, married women, men and, finally, the youth. Less than 30 per cent of women and men in both Katilu and Loima are able to read and write. The cross-tabulation results show that there is a statistical significant relationship between gender, age and education level and climate change vulnerability. This implies that gender, age and education level have a significant effect on climate change vulnerability. Research limitations/implications The research coverage was limited to only two regions in Turkana because of time and economic constraints. Practical implications The lack of attention to gender in the climate change literature has time and again resulted in an oversimplification of women’s and men's experience of climate risks. Improved development assistance, investments and enhanced targeting of the truly vulnerable within pastoral societies demand an acceptance of underdevelopment in arid and semi-arid regions in Kenya because of historical imbalances in investment; the recognition that vulnerability of pastoralists is neither uniform nor universal and the need to consider differences like age, gender and education. Policy-makers should understand that pastoralists in the past have used indigenous knowledge to cope with and adapt to climate change. The current-recurrent and intensity droughts require investment in modern technology, equipping pastoralists with relevant information and skills to make them resilient to climate change and implementing existing and relevant policies for northern Kenya. Social implications This paper draws from several other efforts to show the critical relationships between gender, social capital and climate change. They are tracking adaptation and measuring development framework; ending drought emergencies common programme framework; and feminist evaluation approach. Originality/value This paper is important in identifying the link between gender, social capital and adaptation to climate change.


2016 ◽  
Vol 9 (2) ◽  
pp. 643
Author(s):  
Gabriel Silva ◽  
Djane Fonseca Da Silva

Objetivou-se avaliar neste trabalho a influência da variabilidade climática sobre a pluviometria local e, consequentemente sobre a produção agrícola, sobretudo das culturas de milho, feijão e mandioca, responsáveis pelas maiores atuações na renda dos agricultores familiares de Aiuaba (CE). Os resultados das Análises de Ondeletas apontaram ciclos de 5-6 anos (ENOS) para ocorrência de anos chuvosos, consequência da associação de diferentes escalas temporais, enquanto que em anos secos foram observados ciclos entre 4 e 6 anos (ENOS), mostrando que a escala de ENOS influencia em toda série de precipitação. Na falta de associação com as demais escalas temporais ocorreram anos secos. Correlações entre precipitação e todas as variáveis de produção apresentaram-se altas e com significância estatística, manifestando menores correlações apenas entre precipitação e área planta e colhida para a cultura da mandioca, únicas variáveis sem significância estatística. O presente estudo mostrou que as informações geradas para o município são proveitosas para os diversos setores como agrícola e socioeconômico. Notou-se também que a variabilidade climática tem efeitos substanciais na produção da agricultura familiar local.   A B S T R A C T In semi-arid regions such as the county of Aiuaba (CE) the agricultural productivity is more likely to be influenced by edaphoclimatic factors, what beyond of the importance of the producer’s technological level, also influence directly in agriculture. The objective this work was to evaluate the influence of climate variability on the local rainfall and consequently on agricultural production, especially of maize, beans and cassava, account for the greatest performances in the income of farmers of Aiuaba (CE). To reach these objectives were used statistical methods as Correlation and Analysis of Wavelet. The results of the Wavelet analysis pointed cycles of 5-6 years (ENSO) for the occurrence of rainy years, a consequence of several different temporal scales, while in dry years were observed cycles between 4 and 6 years (ENSO), showing that the ENSO scale influence on all series of rainfall. In the absence of association with other timescales occurred dry years. Correlations between rainfall and all production variables were high and with statistical significance, showing only small correlations between rainfall and plant and harvested area for cassava, only variables not statistically significant. This study showed that the information generated for the city are useful for various industries like agriculture and socioeconomic. It was also noted that climate variability has significant effects on the production of local family farmers. Keywords: Climate variability, Family farming, Correlation, Wavelets, ENSO.   


2021 ◽  
Vol 13 (9) ◽  
pp. 905-917
Author(s):  
Mohammad Kheiri ◽  
Jafar Kambouzia ◽  
Reza Deihimfard ◽  
Saghi M. Moghaddam ◽  
Seyran Anvari

Author(s):  
Jingyong Zhang ◽  
Lingyun Wu ◽  
Wenjie Dong

2021 ◽  
Vol 12 ◽  
Author(s):  
Amarpreet Kaur ◽  
Daizy R. Batish ◽  
Shalinder Kaur ◽  
Bhagirath S. Chauhan

Calotropis procera (Aiton) Dryand. (commonly known as the apple of sodom, calotrope, and giant milkweed) is an evergreen, perennial shrub of the family Apocynaceae, mainly found in arid and semi-arid regions. It is a multipurpose plant, which can be utilized for medicine, fodder, and fuel purposes, timber and fiber production, phytoremediation, and synthesis of nanoparticles. It has been widely used in traditional medicinal systems across North Africa, Middle East Asia, and South-East Asia. At present, it is being extensively explored for its potential pharmacological applications. Several reports also suggest its prospects in the food, textile, and paper industries. Besides, C. procera has also been acknowledged as an ornamental species. High pharmacological potential and socio-economic value have led to the pantropical introduction of the plant. Morpho-physiological adaptations and the ability to tolerate various abiotic stresses enabled its naturalization beyond the introduced areas. Now, it is recognized as an obnoxious environmental weed in several parts of the world. Its unnatural expansion has been witnessed in the regions of South America, the Caribbean Islands, Australia, the Hawaiian Islands, Mexico, Seychelles, and several Pacific Islands. In Australia, nearly 3.7 million hectares of drier areas, including rangelands and Savannahs, have been invaded by the plant. In this review, multiple aspects of C. procera have been discussed including its general characteristics, current and potential uses, and invasive tendencies. The objectives of this review are a) to compile the information available in the literature on C. procera, to make it accessible for future research, b) to enlist together its potential applications being investigated in different fields, and c) to acknowledge C. procera as an emerging invasive species of arid and semi-arid regions.


2021 ◽  
Vol 9 ◽  
Author(s):  
Xiaodan Guan ◽  
Kaiwei Zhu ◽  
Xiaoqian Huang ◽  
Xinrui Zeng ◽  
Yongli He

The semi-arid regions of East Asia are located in the transition area between regions dominated by the monsoon system and by westerly winds; their interaction is the key to understand precipitation changes, especially in the summer. Our results show that the enhancement of both the monsoon and westerly winds occurs in wet years, leading to stronger convergence and more rainfall. Weakening of both the monsoon and westerly winds occurs in dry years and results in less rainfall. Such interaction between the monsoon and westerlies is not constant; the boundary of their effects is changing all the time. As the monsoon strengthens, it shifts to the west in wet years and covers most of the semi-arid regions, and the negative effect of the El Niño-Southern Oscillation (ENSO) system on precipitation in the semi-arid regions becomes obvious. However, westward expansion has not been evident over the past 70 years in historic data. In the future, the monsoon will obviously expand westward, and the precipitation over the Loess Plateau will gradually increase as the monsoon boundary expand westward until the end of the 21st century. This change indicates that more rainfall will occur in the semi-arid regions of East Asia, which could dramatically change the ecological environment, especially over the Loess Plateau.


2013 ◽  
Vol 91 ◽  
pp. 119-128 ◽  
Author(s):  
M. Guo ◽  
X.-F. Wang ◽  
J. Li ◽  
K.-P. Yi ◽  
G.-S. Zhong ◽  
...  

Author(s):  
Stephen K. Kimani ◽  
Anthony O. Esilaba ◽  
Peterson N. M. Njeru ◽  
Joseph M. Miriti ◽  
John K. Lekasi ◽  
...  

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