scholarly journals Agro-Pastoralists’ Perception of Climate Change and Adaptation in the Qilian Mountains, China

2021 ◽  
Author(s):  
Shuntao Xie ◽  
Wenguang Ding ◽  
Weifeng Ye ◽  
Zhe Deng
Keyword(s):  
Climate Change ◽  
Current Knowledge ◽  
Northwest China ◽  
Demographic Variables ◽  
Education Level ◽  
Gansu Province ◽  
Human Society ◽  
High Exposure ◽  
Agricultural Income ◽  
Experience Education

Abstract Global climate change affects all aspects of human society, especially agricultural and animal husbandry production. Northwest China has detrimentally affected by the climatic variations due to its high exposure to extreme climatic events. A number of studies have reported on agro-pastoralists' perceptions, adaptation and mitigation of climate change, but the current knowledge of agro-pastoralists' perceptions of climate change in China is insufficient. To fill this research gap, this study aims to investigate the cognition level of agro-pastoralists in Northwest China on climate change and related factors. Data were collected using a structured questionnaire based on household surveys of 554 study participants in four counties in Gansu Province, China. Raw data were collected using stratified random sampling. A probit model was used to analyze the respondents' understanding of climate change and its related socio-economic and demographic variables. Our results show that more than 70% of agro-pastoralists are perception of the changes of temperature and precipitation. Socioeconomic and demographic variables such as gender, farming experience, education level, cultivated land size, agricultural income, livestock, village cadre experience, access to weather information of agro-pastoralists are pertinently related to agro-pastoralists' awareness of climate change. Farming experience, education level, household size, grassland size, agricultural income, association membership, village cadre experience has a high impact on agro-pastoralists' adaptation to climate change. The results of this study will help guide government agencies and decision makers, and help arid and semi-arid areas to build sustainable adaptation measures under the framework of climate change.

scholarly journals Prevalence and risk factors of myopia in Han and Yugur older adults in Gansu, China：a cross-sectional study

2019 ◽  
Author(s):  
Xuqian Wang ◽  
Huijing He ◽  
Xujiao Wang ◽  
Guangliang Shan ◽  
Li Pan ◽  
...  
Keyword(s):  
Higher Education ◽  
Risk Factors ◽  
Family History ◽  
High Myopia ◽  
Northwest China ◽  
Education Level ◽  
Gansu Province ◽  
Age Group ◽  
Han Ethnicity ◽  
History Of

Abstract Background Few studies have investigated the prevalence of myopia in Northwest China. This study aimed to investigate the prevalence and risk factors of myopia and high myopia in adults aged 40-80 years in Han and Yugur ethnicities living in Gansu Province, Northwest China. Methods The cross-section study is part of the China National Health Survey (CNHS), which was conducted in 2016, Gansu Province. We compared the age- and sex-standardized prevalence of myopia, high myopia and hyperopia in Han and Yugur participants. Risk factors for myopia and high myopia were identified using multivariable logistic regression models. Results 3845 participants were included. The overall adjusted prevalence of myopia (spherical equivalent (SE)<-0.5 D), high myopia (SE<-6.0D) and hyperopia (SE>+0.5D) were 16.4%, 0.7% and 26.2% in Yugur, and 34.3%, 5.0% and 19.2% in Han. In the multivariable logistic regression model, Han ethnicity (Odds Ratio(OR),0.56; 95% confidence interval (CI): 0.45-0.69), P<0.001), birth in rural areas (OR,0.69; 95%CI: 0.56-0.85, P<0.001), higher education level (OR,1.48; 95%CI:1.18-1.85, P=0.001for middle/high school group and OR, 3.62; 95%CI:2.73-4.82, P<0.001 for Undergraduate/graduate group), indoor work (OR, 0.64; 95%CI: 0.51-0.80, P<0.001), smoking history (OR, 0.69; 95%CI: 0.52-0.90, P=0.007) and a family history of myopia (OR,2.83; 95%CI: 1.22-6.51, P=0.015 for one patient) were found to be associated with myopia. The risk factors of high myopia included Han ethnicity (OR, 0.33; 95%CI: 0.15-0.73, P=0.006), 50-59 age group (OR, 0.65; 95%CI:0.43-1.0, P=0.049), 60-69 age group (OR,0.49; 95%CI: 0.25-0.97, P=0.039), birth in rural area (OR, 0.61; 95%CI: 0.40-0.94, P=0.025) and a family history of myopia (OR, 4.32; 95%CI: 1.74-10.7, P=0.002 for one patient; OR, 22.3; 95%CI: 2.41-206.1, P=0.006 for both patients). Conclusion The prevalence of myopia and high myopia in Han adults aged 40-80 was significantly higher than that in Yugur. The risk factors of myopia included Han ethnicity, birth in rural area, higher education level, indoor work and a family history of myopia. This study provided valuable information on risk factors of myopia and revealed an ethnic disparity on the susceptibility of myopia, which would be useful in identifying high-risk population and initiating more targeted strategies preventing myopia in China.

scholarly journals Prevalence of gastrointestinal parasites in free-range yaks (Bos grunniens) in Gansu Province, Northwest China

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Si-Yuan Qin ◽  
Ming-Yang Yin ◽  
Guang-Yao Song ◽  
Qi-Dong Tan ◽  
Jin-Lei Wang ◽  
...  
Keyword(s):  
Northwest China ◽  
Gansu Province ◽  
Gastrointestinal Parasites ◽  
Economic Losses ◽  
Parasitic Infections ◽  
Cattle Industry ◽  
Free Range ◽  
Bos Grunniens ◽  
High Prevalence ◽  
Different Seasons

Abstract Background Little information about the prevalence of gastrointestinal parasites in yaks (Bos grunniens) in northwest China is available. Therefore, the objective of the study was to quantify faecal egg counts of gastrointestinal parasites (helminths and coccidia) in free-range yaks from Gannan Tibetan Autonomous Prefecture, Gansu Province, Northwest China. Results Parasites were detected in 290 of 733 (39.56%) faecal samples. The results showed that Strongylidae, Trichuris spp. and Eimeria spp. were detected all year round, Strongyloides papillosus was detected in autumn and summer, and Nematodirus spp. was detected in both autumn and spring. In contrast, Fasciola spp. was only detected in spring. The prevalence rates of parasitic infections in different seasons were significantly different. Conclusions To our knowledge, this is the first investigation of gastrointestinal parasites in yaks (Bos grunniens) in Gansu, China. The results demonstrated a high prevalence of gastrointestinal parasitic infections, specifically GN infections, in yaks in GTAP and these infections can cause economic losses to the local cattle industry.

Exposure to climate change drives stability or collapse of desert mammal and bird communities

Science ◽  
2021 ◽  
Vol 371 (6529) ◽  
pp. 633-636 ◽  
Author(s):  
E. A. Riddell ◽  
K. J. Iknayan ◽  
L. Hargrove ◽  
S. Tremor ◽  
J. L. Patton ◽  
...  
Keyword(s):  
Climate Change ◽  
Heat Flux ◽  
Small Mammal ◽  
Mojave Desert ◽  
Bird Communities ◽  
Climate Projections ◽  
Microhabitat Use ◽  
High Exposure ◽  
Species Occupancy ◽  
Mammal Communities

High exposure to warming from climate change is expected to threaten biodiversity by pushing many species toward extinction. Such exposure is often assessed for all taxa at a location from climate projections, yet species have diverse strategies for buffering against temperature extremes. We compared changes in species occupancy and site-level richness of small mammal and bird communities in protected areas of the Mojave Desert using surveys spanning a century. Small mammal communities remained remarkably stable, whereas birds declined markedly in response to warming and drying. Simulations of heat flux identified different exposure to warming for birds and mammals, which we attribute to microhabitat use. Estimates from climate projections are unlikely to accurately reflect species’ exposure without accounting for the effects of microhabitat buffering on heat flux.

Risk assessment of water resource shortages in the Aksu River basin of northwest China under climate change

2022 ◽  
Vol 305 ◽  
pp. 114394
Author(s):  
Peng Yang ◽  
Shengqing Zhang ◽  
Jun Xia ◽  
Yaning Chen ◽  
Yongyong Zhang ◽  
...  
Keyword(s):  
Climate Change ◽  
Risk Assessment ◽  
River Basin ◽  
Water Resource ◽  
Northwest China ◽  
Aksu River Basin

scholarly journals An 8500-year palynological record of vegetation, climate change and human activity in the Bosten Lake region of Northwest China

2019 ◽  
Vol 516 ◽  
pp. 166-178 ◽  
Author(s):  
Pavel E. Tarasov ◽  
Dieter Demske ◽  
Christian Leipe ◽  
Tengwen Long ◽  
Stefanie Müller ◽  
...  
Keyword(s):  
Climate Change ◽  
Human Activity ◽  
Northwest China ◽  
Bosten Lake ◽  
Lake Region

scholarly journals Rhodoliths in Brazil: Current knowledge and potential impacts of climate change

2016 ◽  
Vol 64 (spe2) ◽  
pp. 117-136 ◽  
Author(s):  
Paulo Antunes Horta ◽  
Pablo Riul ◽  
Gilberto M. Amado Filho ◽  
Carlos Frederico D. Gurgel ◽  
Flávio Berchez ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Change ◽  
Ocean Acidification ◽  
Heat Waves ◽  
Current Knowledge ◽  
Coastal Pollution ◽  
Brazil Current ◽  
Run Off ◽  
Benthic Ecosystems ◽  
Impacts Of Climate Change

Abstract Rhodolith beds are important marine benthic ecosystems, representing oases of high biodiversity among sedimentary seabed environments. They are found frequently and abundantly, acting as major carbonate 'factories' and playing a key role in the biogeochemical cycling of carbonates in the South Atlantic. Rhodoliths are under threat due to global change (mainly related to ocean acidification and global warming) and local stressors, such as fishing and coastal run-off. Here, we review different aspects of the biology of these organisms, highlighting the predicted effects of global change, considering the additional impact of local stressors. Ocean acidification (OA) represents a particular threat that can reduce calcification or even promote the decalcification of these bioengineers, thus increasing the eco-physiological imbalance between calcareous and fleshy algae. OA should be considered, but this together with extreme events such as heat waves and storms, as main stressors of these ecosystems at the present time, will worsen in the future, especially if possible interactions with local stressors like coastal pollution are taken into consideration. Thus, in Brazil there is a serious need for starting monitoring programs and promote innovative experimental infrastructure in order to improve our knowledge of these rich environments, optimize management efforts and enhance the needed conservation initiatives.

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