A theory of the origin intraseasonal oscillations tropical atmosphere is presented and tested by simple model experiments. This study forces on validation basic against key features observed 40–50 day oscillation. It shown that eastward propagation oscillation in arises as an intrinsic mode resulting from interaction convection dynamics via so-called "mobile" wave-CISK mechanism. Through this mechanism, heat source feeds east-west asymmetry forced equatorial waves. As a result, Kelvin waves...

The effects of risk perception and sense place on disaster preparedness have been widely reported. However, most studies only demonstrated weak relationships it is unknown whether these are applicable to China. This study investigated such in hazard-threatened areas the Three Gorges Reservoir area southwestern Data were collected from 348 farming households landslide-prone areas. Binary logistic Tobit regression models constructed determine influence landslide preparedness. results show...

Few studies have addressed rural households' livelihood vulnerability index (HLVI) in areas threatened by geological hazards, particularly China's mountainous regions, or the impact of community adaptive capacity on HLVI. Using household data from Three Gorges Reservoir Area, this study accounts for and constructs an evaluation system. Shocks climate change, considerable expenditure to households, sensitivity shocks are explored, resulting following findings: (1) In villages where landslides...

Abstract Many rural settlements in China's western mountainous regions are affected by mountain disasters, such as landslides and mudslides. For residents living landslide‐prone areas, behaviors related to disaster risk mitigation (such purchasing insurance) inevitably perception. Due the substantial differences occurrence patterns, landslide‐related insurance research is relatively rare compared with focused on other types of natural disasters (e.g., floods droughts). Based results...

The urban–rural transitional areas in southwestern China are crucial the creation of sustainable ecosystems, which have characteristics mountain–plain transitions. Herein, we developed a framework to assess changes multiple ecosystem services transition zone is product urbanization. We explored interactions between from 2000 2015 Chengdu-Chongqing urban agglomeration (CCUA) and quantified their relationships across entire study area 2015. All five critical were analyzed develop new...

The global pollution of micro- and nano-plastics (MNPs) calls for monitoring methods. As diverse mixtures various sizes, morphologies, chemical compositions in the environment, MNPs are currently quantified based on mass or number concentrations. Here, we show total organic carbon (TOC) as an index quantifying environmental waters. Two parallel water samples respectively filtered with a carbon-free glass fiber membrane. Then, one membrane collected particulate substances is treated by...

The relationships between trade-off and synergy in ecosystem services (ESs) is essential for eco-environmental management restoration Karst regions, many researchers have focused heavily on this. However, to date, the best of our knowledge, we still lack an adequate understanding driving factors relationship changes optimization spatial pattern ESs this region. In study, a Bayesian belief network (BBN) model was developed link three major ESs—net primary productivity (NPP), water yield (WY),...

Artemisia argyi (AA) is promising as a potential feed additive. Microbial fermentation beneficial to the degradation of cell walls and better release bioactive compounds AA. However, there are few reports on application fermented AA additive for broilers. The present study intended evaluate value broilers by examining effects dietary supplementation Aspergillus niger-fermented unfermented growth performance, slaughter meat quality brokers. A total 360 newly hatched (1-day-old) with similar...

Abstract It has been projected that climatic warming will contribute to vegetation productivity variability at the global scale. With a continued warming, what extent and where is most affected by still not adequately quantified. Herein, based on 11 earth system model outputs, we predict characteristics of vegetation‐temperature sensitivity ( S vpt , defined as higher/lower temperature produce more/less vegetation) changes under different CO 2 emission scenarios various types, further...

In this paper we present results of several preliminary numerical experiments to study the mechanism observed variabilities in wind and convection associated with super cloud clusters(SCC), westerly bursts 30-60 day oscillations western Pacific region. Using Lau Peng(1987) model, show that generation eastward propagating precipitation pattern osillaition can be identified as a SCC. During its development stage, SCC is accompanied by convective clusters moving opposite direction(westward) Our...

Shi, B.; Wang, Y.P.; Yang, Y.; Li, M.; P.; Ni, W., and Gao, J., 2015. Determination of critical shear stresses for erosion deposition based on in situ measurements currents waves over an intertidal mudflat.Accurate determination the stress associated with sediments is important component numerical models used to predict quantify sediment behavior transport across flats. In this study, water depth, wave parameters, near-bed turbulent velocity, suspended concentration (SSC), intratidal...

Scholars from environmental psychology, geography, disaster science, and sociology have recently focused attention on evacuation relocation behaviors influencing factors in hazard-threatened areas. However, existing studies are mainly developed countries the influence of individual characteristics, household perception risk urban households behaviors. Few examine developing farmers’ sense place geological Using statistics farming an area threatened by landslides, this is a pilot study to...

The aim was to investigate whether selenium-enriched yeast (SeY) can attenuate intestinal injury in broiler chickens induced by ochratoxin A (OTA). Here, the results showed that SeY addition increased body weight, feed conversion ratio, villi height, villus/crypt and numbers of goblet cells. Furthermore, levels oxidative stress (superoxide dismutase activity, total antioxidant capacity, glutathione content) were significantly decreased (P < 0.01), but malondialdehyde content 0.05). Moreover,...

Previous studies have confirmed the time-lagged and cumulative effects of drought anthropogenic activities on vegetation growth, but these focus effect are poorly known how productivity responds to activities. Here, based reconstructed Normalized Difference Vegetation Index, Standardized Precipitation Evapotranspiration Index land use degree comprehensive index, we diagnosed spatiotemporal pattern drought, investigated over China through month where maximum correlation coefficient occurred....

Ecosystem services (ESs) are closely related to human well-being (HWB). Recently, urbanization has increased worldwide, which had a significant impact on the ecosystem service supply–demand (ESSD) and HWB. However, previous studies have primarily focused spatiotemporal pattern of ESSD HWB, while ignoring their evolutionary pathways, especially in karst areas. We aimed quantify optimal trade-offs under constraints nonlinear relationship between further constructing tree-like framework explore...