Showing 1 - 10 of 736
Persistent link: https://www.econbiz.de/10009507866
Microplastics (MPs) have attracted increasing concern as emerging contaminants of global importance in recent years. Soil is considered an important sink for MPs. Due to environmental weathering, MP surfaces are often charged, but there are limited studies on the interaction of differentially...
Persistent link: https://www.econbiz.de/10013303365
Biochar (BC) has obtained widespread attention as an agricultural ammonia (NH3) abatement conditioner. Meanwhile, microplastics (MPs) are verified to affect the fate of NH3 . However, the impacts and mechanisms of MPs coupled with BC on NH3 losses in rice and wheat soils are mostly untapped. The...
Persistent link: https://www.econbiz.de/10013303381
We evaluate sources of business cycle fluctuations in China after 1978 with business cycle accounting method developed by Chari, Kehoe, and McGrattan (2007). We find that efficiency wedge, which represents institutional change and technology advance, was the main source of economic fluctuations...
Persistent link: https://www.econbiz.de/10015251474
This paper investigates the sources of business cycle fluctuations in China and India since 1978/81. Under the framework of a standard neoclassical open economy model with time-varying frictions (wedges), we study the relative importance of efficiency, labor, investment and government...
Persistent link: https://www.econbiz.de/10005004398
Frequency-dependent selection is theoretically predicted to have an important impact on predator--prey dynamics, but little is understood about this process in nature. We investigated oak--squirrel interactions to test the hypothesis that tree squirrels predate/disperse white oak acorns based on...
Persistent link: https://www.econbiz.de/10008553546
Using acorns from Castanea henryi (CH) and Quercus variabilis (QV) with contrasting germination schedule (related to food perishability) and tannin levels, we conducted field experiments in a subtropical forest in Southwest China to investigate how free-ranging Pallas's squirrels (Callosciurus...
Persistent link: https://www.econbiz.de/10008553962
We evaluate sources of business cycle fluctuations in China after 1978 with business cycle accounting method developed by Chari, Kehoe, and McGrattan (2007). We find that efficiency wedge, which represents institutional change and technology advance, was the main source of economic fluctuations...
Persistent link: https://www.econbiz.de/10005260124
Persistent link: https://www.econbiz.de/10012072611
Tephra fallout is an important type of hazard caused by volcanic eruption, and is also one of the main hazards at Changbaishan volcano, Northeast China. Numerical simulation is an effective approach to assess the dispersion of tephra fallout. According to the theory of dispersion model, we...
Persistent link: https://www.econbiz.de/10010996034