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climate change

climate change的相关文献在2001年到2023年内共计279篇,主要集中在大气科学(气象学)、工业经济、海洋学 等领域,其中期刊论文279篇、相关期刊83种,包括地理学报(英文版)、气候变化研究进展、森林生态系统:英文版等; climate change的相关文献由1172位作者贡献,包括Nadhir Al-Ansari、A. Bannari、Fei Wang等。

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论文:279 占比:100.00%

总计:279篇

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climate change

-研究学者

  • Nadhir Al-Ansari
  • A. Bannari
  • Fei Wang
  • Guanghui DONG
  • Jean Patrice Jourda
  • Jie JIANG
  • Johnny C.L.CHAN
  • Kan Jean Kouamé
  • Kin Sik LIU
  • LI Yaoming
  • 期刊论文

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    • Chunzai WANG; Jiayu ZHENG; Wei LIN; and Yuqing WANG
    • 摘要: An extraordinary and unprecedented heatwave swept across western North America(i.e.,the Pacific Northwest)in late June of 2021,resulting in hundreds of deaths,a massive die-off of sea creatures off the coast,and horrific wildfires.Here,we use observational data to find the atmospheric circulation variabilities of the North Pacific and Arctic-Pacific-Canada patterns that co-occurred with the development and mature phases of the heatwave,as well as the North America pattern,which coincided with the decaying and eastward movement of the heatwave.Climate models from the Coupled Model Intercomparison Project(Phase 6)are not designed to simulate a particular heatwave event like this one.Still,models show that greenhouse gases are the main reason for the long-term increase of average daily maximum temperature in western North America in the past and future.
    • HUANG Xiaoran; BAO Anming; GUO Hao; MENG Fanhao; ZHANG Pengfei; ZHENG Guoxiong; YU Tao; QI Peng; Vincent NZABARINDA; DU Weibing
    • 摘要: Glaciers are highly sensitive to climate change and are undergoing significant changes in mid-latitudes.In this study,we analyzed the spatiotemporal changes of typical glaciers and their responses to climate change in the period of 1990-2015 in 4 different mountainous sub-regions in Xinjiang Uygur Autonomous Region of Northwest China:the Bogda Peak and Karlik Mountain sub-regions in the Tianshan Mountains;the Yinsugaiti Glacier sub-region in the Karakorum Mountains;and the Youyi Peak sub-region in the Altay Mountains.The standardized snow cover index(NDSI)and correlation analysis were used to reveal the glacier area changes in the 4 sub-regions from 1990 to 2015.Glacial areas in the Bogda Peak,Karlik Mountain,Yinsugaiti Glacier,and Youyi Peak sub-regions in the period of 1990-2015 decreased by 57.7,369.1,369.1,and 170.4 km^(2),respectively.Analysis of glacier area center of gravity showed that quadrant changes of glacier areas in the 4 sub-regions moved towards the origin.Glacier area on the south aspect of the Karlik Mountain sub-region was larger than that on the north aspect,while glacier areas on the north aspect of the other 3 sub-regions were larger than those on the south aspect.Increased precipitation in the Karlik Mountain sub-region inhibited the retreat of glaciers to a certain extent.However,glacier area changes in the Bogda Peak and Youyi Peak sub-regions were not sensitive to the increased precipitation.On a seasonal time scale,glacier area changes in the Bogda Peak,Karlik Mountain,Yinsugaiti Glacier,and Youyi Peak sub-regions were mainly caused by accumulated temperature in the wet season;on an annual time scale,the correlation coefficient between glacier area and annual average temperature was-0.72 and passed the significance test at P<0.05 level in the Karlik Mountain sub-region.The findings of this study can provide a scientific basis for water resources management in the arid and semi-arid regions of Northwest China in the context of global warming.
    • Nyong Princely Awazi
    • 摘要: The adverse impacts of climate variability and change are felt mostly by smallholder farmers and smallholder farming systems where rain-fed agriculture is predominant.Continuous dependence on rain-fed agriculture has led to declining crop productivity and crop failure in most cases as weather patterns shift which is very problematic for crop growth.Agroforestry which is one of the climate-smart,environmentally benign and agroecological practices has been found to mitigate climate change adversities while fostering adaptation,enhancing resilience and attenuating vulnerability especially in smallholder farming systems.However,in Cameroon,limited empirical research has been done to ascertain the role played by agroforestry in climate change adaptation,resilience enhancement and vulnerability attenuation.This paper which is based on an in-depth review of literature was undertaken to uncover what has been done so far in terms of empirical studies tackling the role played by agroforestry in climate change adaptation,resilience and vulnerability attenuation in Cameroon.It was found that most of the empirical studies have been carried out in one agroecological zone-the western highlands of Cameroon,showing that smallholder farmers adopt different agroforestry practices in the face of climate change with the most common being home gardens with livestock,home gardens without livestock,scattered trees on croplands,improved fallows,live fences/hedges and windbreaks,coffee-based agroforestry,cocoa-based agroforestry,apiculture-based agroforestry,fodder banks,and plantation crop-based agroforestry practices.These agroforestry practices provide a plethora of ecosystem services categorized into provisioning,supporting,regulating and cultural which play an important role towards fostering climate change adaptation,enhancing resilience and attenuating vulnerability in smallholder farming systems.From the findings uncovered by this study,it is imperative for more empirical studies to be carried out in the other four agroecological zones of Cameroon where there is a paucity of information regarding the role played by agroforestry towards fostering climate change adaptation,enhancing resilience and attenuating vulnerability in smallholder farming systems.
    • Kimberly A.Bowman; Xiongwen Chen
    • 摘要: Climate change poses many risks to economically and ecologically crucial species.Longleaf pine(Pinus palustris Mill.)trees are keystone species that were once dominant across the southeastern United States,but now occupy less than 5%of their historic range and are thus classified as endangered.Here we review the current status and challenges facing longleaf pine trees,what is known on how changing climate will impact longleaf growth and reproduction,and gaps in the literature that are important to address.We found that many fundamental aspects of longleaf pine growth and reproduction are understood.However,these systems are complex,and not all is known about each factor that influences the relationship between climate,growth,and reproductive output.Additionally,long-term data sets capable of examining all relevant factors in these relationships do not currently exist.To fill necessary gaps,we recommend a joint approach between using readily available data sets and establishing new long-term monitoring plots targeted to collect data on missing or poorly understood conditions.This review provides a clue from an ecological complexity perspective to understand and manage longleaf pine forests under climate change.
    • Douglas De Stefano; Bárbara Nogueira Souza Costa; Jason Downing; Esmaeil Fallahi; Amir Ali Khoddamzadeh
    • 摘要: In-vitro propagation is a technique that provides a vital solution for the conservation of endangered orchid species. The media used in tissue culture can be modified through the addition of inexpensive organic materials as an alternative to expensive synthetic additives. Some organic sources, such as coconut water and fruit juice, contain significant amounts of vitamins, amino acids, and organic compounds which can act as growth regulators, making these organic sources excellent additives for in-vitro cultivation. The aim of this study was to develop a protocol for in-vitro micropropagation and acclimatization of Epidendrum nocturnum using organic supplements in the growth media and various substrates at the acclimatization stage. Banana powder, coconut water, and potato dextrose were added to a basal seed sowing media and evaluated for seed germination percentage and plantlet growth. In addition, various substrates such as coconut coir, horticultural charcoal, sphagnum moss, and wood bark were evaluated for height, number of leaves, and number of shoots in the acclimatization portion of this study. The culture medium with coconut water showed a greater germination percentage (71.00% and 76.75%) compared with the control (37.50% and 45.50%) at 60 and 90 days after seed sowing, respectively. Media with organic supplements showed greater values of plant length and number of roots compared with the control. The combination of coconut coir and horticultural charcoal was shown to be more efficient than the combination of sphagnum moss, horticultural charcoal, and wood bark, as results showed greater values of plant height and number of leaves at 30, 90, and 120 days after transplantation in acclimatization of E. nocturnum.
    • ZHANG Haobin; YANG Changbao; GUO Huali; HOU Guanglei
    • 摘要: Since the 1970s,the soda saline-alkali soil region,which is located in the semiarid-arid region of the central Northeast China,has experienced drastic climate variability.Meanwhile,human activities and socio-economic development have led to an increase in water consumption.These factors have brought out considerable land use change and a lot of soil salinize-alkalization.The land use types were obtained from remote sensing images interpretation based on Landsat MSS in 1970s,TM,ETM in 1990s and 2010s.The characteristics of land use conversion and its response to climate change and influence of human activities were explored in the study area during 1970-2010.The results include:(1)The land use types had changed significantly,especially farmland and grassland,with annual growth rates of 0.31% and 0.35%,respectively.In terms of the saline-alkali land,the area increased greatly during 1970-1990,and its increase was mainly from grassland.There was a decrease from 1990 to 2010,and the loss of saline-alkali was replaced by farmland and grassland.(2)Climate change in the study area is obvious,showing a trend of decreasing precipitation and increasing temperature.The change of saline-alkali land area is closely related to the precipitation,with R2=0.78,passed a passing the 0.01 significance test.(3)The correlation of land use degree index and human activity index with saline-alkali land was not obvious,and the changes in these indices only reflected the land use patterns.Under sufficient rainfall,the saline-alkali land was developed into farmland by humans,which caused the decrease of the saline-alkali land.Therefore,climate change is the main driving force of land salinization in the study area.
    • 尚月; 韩奕琛
    • 摘要: Dealing with climate change has attracted global attention,and promoting carbon emission reduction and achieving carbon neutrality is the policy goal pursued by numerous countries.In the past year,to adapt to the trend of the global low-carbon transition,cope with extreme climate phenomena,reduce the impact of the EU carbon border tax,compete for the international discourse power,and seek breakthroughs in relations with the US and Europe,Russia’s cognition and position concerning climate change has changed signifcantly;Russia is taking increasingly active steps to achieve carbon neutrality goals.Therefore,it has launched a Green New Deal.However,due to restrictions by internal and external factors,it will be a long and difcult process for Russia’s real green transformation from concept to policy and action.
    • WANG Hongwei; QI Yuan; LIAN Xihong; ZHANG Jinlong; YANG Rui; ZHANG Meiting
    • 摘要: Qinghai Lake is the largest saline lake in China.The change in the lake volume is an indicator of the variation in water resources and their response to climate change on the Qinghai-Tibetan Plateau(QTP)in China.The present study quantitatively evaluated the effects of climate change and land use/cover change(LUCC)on the lake volume of the Qinghai Lake in China from 1958 to 2018,which is crucial for water resources management in the Qinghai Lake Basin.To explore the effects of climate change and LUCC on the Qinghai Lake volume,we analyzed the lake level observation data and multi-period land use/land cover(LULC)data by using an improved lake volume estimation method and Integrated Valuation of Ecosystem Services and Trade-offs(InVEST)model.Our results showed that the lake level decreased at the rate of 0.08 m/a from 1958 to 2004 and increased at the rate of 0.16 m/a from 2004 to 2018.The lake volume decreased by 105.40×10^(8) m^(3) from 1958 to 2004,with the rate of 2.24×10^(8) m^(3)/a,whereas it increased by 74.02×10^(8) m^(3) from 2004 to 2018,with the rate of 4.66×10^(8) m^(3)/a.Further,the climate of the Qinghai Lake Basin changed from warm-dry to warm-humid.From 1958 to 2018,the increase in precipitation and the decrease in evaporation controlled the change of the lake volume,which were the main climatic factors affecting the lake volume change.From 1977 to 2018,the measured water yield showed an"increase-decrease-increase"fluctuation in the Qinghai Lake Basin.The effects of climate change and LUCC on the measured water yield were obviously different.From 1977 to 2018,the contribution rate of LUCC was -0.76% and that of climate change was 100.76%;the corresponding rates were 8.57% and 91.43% from 1977 to 2004,respectively,and -4.25% and 104.25% from 2004 to 2018,respectively.Quantitative analysis of the effects and contribution rates of climate change and LUCC on the Qinghai Lake volume revealed the scientific significance of climate change and LUCC,as well as their individual and combined effects in the Qinghai Lake Basin and on the QTP.This study can contribute to the water resources management and regional sustainable development of the Qinghai Lake Basin.
    • Hafizullah Rasouli
    • 摘要: This Climate Change Impacts on Water Resources and Air Pollution,research is carried out to analysis Hydro-meteorological and groundwater data in Kabul Sub-basins,Afghanistan.The main objective of this research is to find out natural causes of climate change effects on surface and to,groundwater resources and air pollutions,these data are collected from diferent Hydrometeoroiogical stations and observations in Kabul Sub-basins for different years(1957 to 2017).For completion this research they used two categories of data analysis;one is hydro meteorological analysis,and the other is groundwater level analysis.In hydro meteorological analysis air temperature,rainfall and discharge have been recovered by this research in Kabul Sub-basins,a number of air temperature,rainfall,discharge of surface water and groundwater are changes due to climate changes from 1957 to 2017.For climate changes effects this article used air pollution data of national,international development bank of Asia,WHO standards and parameters;PM_(2.5),PM_(10),TSP,NO_(2),SO_(2),O_(3),CO and Pb.From comparing PM_(10) are very higher in the air of Afghanistan.The discharge of Panjsher river due to glacier melting and climate changes increasing.The challenges during this research are lack of equipment.
    • Mawunyo Simon Pierre Kitegi; Yendoube Lare; Ousmane Coulibaly
    • 摘要: Potential of green hydrogen producing from biomass, solar and wind in Togo has been performed. The availability of these three resources has been depicted with maps showing them per cantons in Togo, thus, by using the datasets from ESA Biomass Climate Change Initiative, the global solar atlas and the global wind atlas. The conversions rates used were: for solar resource, 3% of land was allocated for the analysis after removing the exclusions with a conversion rate of 52.5 kWh/kg of hydrogen;for biomass hydrogen, the conversion rate of 13.4 kg BS/kg H2 was assumed. Wind resources at 50 m above ground were not sufficient to evaluate the potential as it is lower than class 3 winds. QGIS version 3.6.4 and R version 4.0.4 were used. Results showed that biomass is the leading resource for producing green hydrogen from renewable energy resources;with good impact in these two cantons: Bassar, Gobe/ Eketo/Gbadi N’Kugna. However, this resource is still decreasing and in some cantons it is null.
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