Inequality of nitrogen use and loss in global croplands caused by climate change

Author(s):  
Chenchen Ren ◽  
Xiuming Zhang ◽  
Stefan Reis ◽  
Jiaxin Jin ◽  
Jianming Xu ◽  
...  

Abstract Maintaining food production while reducing agricultural pollution is a grand challenge under the threats of global climate change, which has exerted negative impacts on agricultural sustainability. How agricultural nitrogen use and loss respond to climate change is rarely understood. Here we show that climate change leads to inequality of cropland nitrogen use and loss across global regions based on historical data for the period 1961-2018 from 143 countries. Increases of yield, nitrogen surplus and nitrogen use efficiency (NUE) are identified in 30% of countries, while reductions are observed for the remaining 70% of countries, as a result of climate change. Farm size changes further intensify the inequality of nitrogen use and pollution in global croplands. Yet, enlarging farm size can facilitate climate change adaptation, by which global cropland NUE could be increased by one-third in 2100 compared to 2018 under future shared socioeconomic pathways. Our results would be of great significance to sustain global agriculture as well as eliminate national inequalities on food production and agricultural pollution control.

2015 ◽  
Vol 1 (2) ◽  
pp. 367-379
Author(s):  
Md Rakibul Islam ◽  
Md Jamil Hossain Biswas ◽  
Md Golam Rabbani Akanda ◽  
Md Ruhul Amin ◽  
Imam Mehedi Hasan ◽  
...  

Global climate change has triggered the increased incidence of extreme disasters like cyclone, flood, soil salinity, etc. in the coastal region of Bangladesh. In the recent past, an amplified number of fatalities happened and the greater impact also acted upon the attitude of coastal people. Badarpur Union under Patuakhali Sadar upazila of Patuakhali District was the selected locale of the concerned study. Data for this research work were personally collected from a randomly sampled 121 farmers from different villages of Badarpur union by using an interview schedule. Attitude of the farmers was ascertained through a five-point-Likert type scale. Co-efficient of correlation (r) was computed to explore the relationships between farmers? attitude and their selected characteristics. The findings revealed that 51.2 percent of the farmers had moderately favourable attitude towards climate change effect while 42.1 percent had slightly favourable and 6.6 percent had highly favourable attitude. The correlation test showed that the education, farming experience, farm size, annual income, training received and agricultural knowledge had positive significant relationships with farmers? attitude towards climate change effect on agriculture while the rest of the characteristics had no relationship in the present study. The focus findings of the present study were that, the attitude of the farmers is changing due to changes in the climatic conditions and there was a positive effect of it on agriculture.Asian J. Med. Biol. Res. June 2015, 1(2): 367-379


2016 ◽  
Vol 9 (1) ◽  
pp. 245 ◽  
Author(s):  
Yongbo Liu ◽  
Wanhong Yang ◽  
Chengzhi Qin ◽  
Axing Zhu

<p>Understanding the impacts of global climate change on the spatiotemporal pattern of hydrologic cycle and water resources is of major importance in highly developed watersheds all over the world. These impacts are strongly dependent on related changes in intensity and frequency of extreme climate events. Implementation of Best Management Practices (BMPs) and policy approaches at watershed and regional scales is essential for mitigating their negative impacts on soil and water conservation, and sustainable economic development. However, the uncertainty of BMP effectiveness including increasing variability of future water supply and changing magnitudes of nonpoint source pollution has to be accounted for in watershed planning and management. This paper provides a review and discussion on the impacts of global climate change on BMP’s hydrologic performance, the current progress on hydrologic assessment of BMPs, as well as the existing problems and countermeasures. Research challenges and opportunities in the field of hydrologic assessment of BMPs under global climate change are also discussed in this paper.</p>


Author(s):  
Supriya Tiwari ◽  
Barkha Vaish ◽  
Pooja Singh

Global food security is one if the major issues that needs utmost attention of the scientific community in near future. The growing food demand of the society is putting enormous pressure on the resources over which the food supply of the civilization depends. The two major components affecting the global food security are population and global climate change. The rate at which the population of the World is increasing, the food production needs to be doubled to meet the growing requirements. Consequences of global climate change not only reduce the productivity of major staple crops, but also cause destruction of the arable land that can be used for agricultural purposes. The present chapter discusses the effects of population increase and climate change upon food production, which will play a significant role in food security around the globe in near future.


Author(s):  
Supriya Tiwari ◽  
Barkha Vaish ◽  
Pooja Singh

Global food security is one if the major issues that needs utmost attention of the scientific community in near future. The growing food demand of the society is putting enormous pressure on the resources over which the food supply of the civilization depends. The two major components affecting the global food security are population and global climate change. The rate at which the population of the World is increasing, the food production needs to be doubled to meet the growing requirements. Consequences of global climate change not only reduce the productivity of major staple crops, but also cause destruction of the arable land that can be used for agricultural purposes. The present chapter discusses the effects of population increase and climate change upon food production, which will play a significant role in food security around the globe in near future.


2021 ◽  
Vol 13 (4) ◽  
pp. 1966
Author(s):  
Daniel Scott

Global climate change represents a grand challenge for society, one that is increasingly influencing tourism sector investment, planning, operations, and demand. The paper provides an overview of the core challenges climate change poses to sustainable tourism, key knowledge gaps, and the state of preparedness in the tourism sector. As we begin what is widely considered a decisive climate decade, low sectoral preparedness should be highly disconcerting for the tourism community. Put bluntly, what we have done for the past 30 years has not prepared the sector for the next 30 years of accelerating climate change impacts and the transformation to a decarbonized global economy. The transition from two decades of awareness raising and ambition setting to a decade of determined collective response has massive knowledge requirements and necessitates broad sectoral commitments to: (1) improved communications and knowledge mobilization, (2) increased research capacity and interdisciplinary collaboration, and (3) strategic policy and planning engagement. We in the tourism and sustainability communities must answer this clarion call to shape the future of tourism in a decarbonized and post +3 °C world, for there can be no sustainable tourism if we fail on climate change.


2020 ◽  
Vol 30 (2) ◽  
pp. 79-107
Author(s):  
Małgorzata Kurleto

The main purpose of the study is to offer a preliminary analysis of the impact of Australian bush fires on tourism in the summer season of 2019/2020. The article addresses issues related to global climate change, including Australia. The author discusses the causes and effects of recent catastrophic fires in Australia, focusing on their negative impacts for tourism. Another problem raised in the article is how climate change in Australia causes bushfires that destroy the nature and life of this country. The study mainly analyses the effects of climate change on the natural environment, especially on the most attractive tourist areas in Australia, i.e. national parks. The study uses the latest information to show the effects of damage caused by fires in Australia, especially in tourism. The author concludes that there is a direct relationship between climate change resulting from global warming and tourism demand.


1992 ◽  
Vol 5 (2) ◽  
pp. 113-146 ◽  
Author(s):  
D. Pimentel ◽  
N. Brown ◽  
F. Vecchio ◽  
V. La Capra ◽  
S. Hausman ◽  
...  

Author(s):  
Anna V. Chugunkova

As a part of global economy, forestry experiences influence of diverse factors and global climate change in particular, which can affect forestry directly or indirectly via changes in qualitative and quantitative assessment of forest growing stocks, and in positive or negative manner. Climate change effects on Russian forestry are still poorly studied and call for more attention in policy-making. One of the direct impacts is shortening of winter logging season duration, which may result in decreasing wood harvests. Using the data on logging volumes in Krasnoyarsk Krai and Irkutsk Oblast and estimated duration of winter logging season on meteorological stations for the retrospective period of 1966-2018, eight ARDL models were evaluated. The modeling results supported the idea of dependence of harvested wood volumes on winter logging season duration across all considered meteorological stations. To reduce negative impacts on logging industry in terms of wood harvest reduction, adaptation activities in forestry are sorely needed


2021 ◽  
Vol 21(36) (1) ◽  
pp. 52-69
Author(s):  
Danlami Yakubu ◽  
Oladimeji Oladele

Rice productivity and sustainability are threatened by both biotic and abiotic stresses, the effects of which can be further aggravated by dramatic changes in global climate. The most viable option for rice farmers is to use climate change adaptation practices. This study therefore investigated the determinants of use of climate change adaptation practices among rice farmers in Kebbi State, North-West, Nigeria. Data were collected from a sample of 279 farmers selected using a multistage sampling procedure. The results of the data analysis revealed that the farmers used improved rice varieties, intercropping, recommended rates of fertilizers and other chemicals as climate change adaptation practices among others. Education, climate change awareness, and extension contact significantly influenced the use of climate change adaptation practices among the farmers. Other determinants of use of climate change adaptation practices among the farmers were years of cooperative membership, affordability, farming experience, weather information and farm size. It was concluded that use of climate change adaptation practices was determined by socioeconomic, institutional and technological characteristics. It is recommended among others that government policy should be geared towards encouraging the farmers especially the younger ones to acquire more formal education, larger farmlands and more climate change awareness.


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