共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
This paper examines the issue of ancillary benefits by linking sulfur dioxide (SO2) emission to CO2 emission using a panel of 29 Chinese provinces over the period 1995–2007. In the presence of non-stationarity and cointegrating
properties of these two data series, this paper applies the panel cointegration techniques to examine both the long-run and
short-run elasticities of SO2 with respect to CO2. The major findings are that: (1) there exhibits a stable long-run equilibrium relationship between the SO2 and CO2 emission with the long-run elasticity being 2.15; (2) there exists a short-run relationship between these two emissions with
the short-run elasticity being 0.04. In addition, following an exogenous shock that causes a deviation from the long-run equilibrium,
it would take approximately 15 years for SO2 emission to revert toward the long-run equilibrium path with an average annual convergence rate of 6.5%; (3) the derived
ancillary benefits that is generated from one metric ton of CO2 emission reduction, are 11.77 Yuan (approximately US1.7) in the short run and 196.16 Yuan (US 1.7) in the short run and 196.16 Yuan (US 30) in the long run. These
findings are not only crucial from the econometric modeling perspective, but also have important policy implications. 相似文献
3.
4.
The thesis of the genetic divergence of Pinus sylvestris L. populations that have spread to bogs from the original dry-land populations has been deduced from the concept of the cyclicity
of helio- and geophysical processes, derivative postulates on climatic cycles, formation of Holocene high bogs, contrasting
differentiation between their environment and that of dry meadows, and the resultant changes in the vectors of microevolutionary
factors and strong reproductive isolation between these populations. Logical genetic, ecological-phenotypical, and geographic
consequences of this theory have been verified by factual data and general laws known to date. The interpolational and predictive
roles of the new theory are demonstrated. 相似文献
5.
6.
7.
8.
9.
10.
S. A. Murzina N. N. Nemova Z. A. Nefedova S. Falk-Petersen 《Russian Journal of Ecology》2010,41(1):51-54
A comparative study on the lipid composition of the liver and muscles has been performed in daubed shanny caught in summer
(July) in Arctic waters at three different sites (biotopes) along the north-western coast of Spitsbergen. In marine organisms
living at high latitudes, lipids play an especially important role, primarily as reserve substances and as a factor influencing
adaptation to severe environmental conditions. Since the ecology of daubed shanny is poorly known, the data obtained may be
considered novel. 相似文献
11.
12.
The footprint tracking method has been used to study specific features of winter ecology of pine martens inhabiting the Rozhdestvenskaya
Floodplain of the Volga River. Attention has been paid to the size and demographic structure of the population, the distribution
of footprints by habitats, home ranges and shelters, features of foraging and territorial behavior, reactions to objects of
natural and anthropogenic origin, and interactions with heterospecific animals. 相似文献
13.
V. V. Kochetkov 《Russian Journal of Ecology》2018,49(2):152-159
The dynamics of wolf attacks on domestic ungulates at the levels of population group (the region of Central Forest Nature Reserve) and population (Tver oblast) have been analyzed over the period of 1971 to 2015. It has been found that the frequency of attacks increases during the phase of predator population growth under the effect of qualitative changes within the population. An increase in the frequency of attacks and the number of sheep and calves killed per attack also takes place in the summer–autumn period, as a consequence of training wolf cubs in methods of killing prey. Therefore, domestic animals are not only a source of food for the wolf but also an object for training the young. 相似文献
14.
T. B. Kalinnikova I. A. Krasnoperova T. M. Gainutdinov S. V. Sadykova M. Kh. Gainutdinov 《Russian Journal of Ecology》2005,36(2):109-114
The thermal resistance of Daphnia magna Straus is a trait depending on the interaction between individuals. The group effect is expressed in D. magna as both a decrease in thermal resistance and a marked individual differentiation with respect to thermal resistance. Two types of interactions between individual D. magna have been found: (1) the release of an unidentified factor decreasing thermal resistance (without noticeably changing the phenotypic variability of this trait) into the medium and (2) a decrease in the thermal resistance of individuals poorly adapted to heat stress, with the thermal resistance of well-adapted individuals (determined by the dependence of thermal resistance on interactions between individuals) remaining the same or even slightly increasing.Translated from Ekologiya, No. 2, 2005, pp. 126–131.Original Russian Text Copyright © 2005 by Kalinnikova, Krasnoperova, T. Gainutdinov, Sadykova, M. Gainutdinov. 相似文献
15.
In male willow ptarmigans, the relationship between qualitative differences between birds belonging to different intrapopulation groups and some individual features of male nuptial plumage has been revealed by studying banded birds. Thus, males that have changed their nesting site differ from those returning to the former site and bigamous males differ from monogamous in the number and size of dark spots amid the white plumage. The influence of the time of the onset of spring on the development of nuptial plumage is considered. 相似文献
16.
The needles of juniper growing in spruce and birch forests of the Khibiny Mountains have been analyzed to evaluate the pattern of changes in their chemical composition (ADF, lignin, cellulose, lignin/cellulose, lipids, phenolic compounds, proanthocyanidins, flavonoids, N, C, and also Ca, Mg, K, Mn, Zn, P, S, Al, and Fe). It has been shown that the concentrations of lignin, lipids, phenolic compounds, Ca, Al, and Fe in the needles increase with age, while those of flavonoids, soluble and bound proanthocyanidins, N, P, K, Mg, Zn, and Mn decrease. The needles of juniper from spruce and birch forests differ in the contents of nutrient elements, which is explained by differences in the composition of soils. The contents of lignin, cellulose, and lipids in aging needles are lower in birch forests than in spruce forests. 相似文献
17.
Yu. A. Maklyuk A. M. Maksimenko S. P. Gashchak M. D. Bondarkov I. V. Chizhevskii 《Russian Journal of Ecology》2007,38(3):181-189
Between 1986 and 1994, a decrease in nonalimentary 90Sr and 137Cs intake and changes in the accessibility of radionuclides in the soil-plant link of their cycle resulted in a 10-to 100-fold decrease in their specific activity (SA) in the bodies of small mammals inhabiting the Chernobyl zone, and a similar decrease was observed in the radionuclide transition factor (TF) in the soil-animal chain. Between 1995 and 2005, no consistent increase or decrease in SA or TF could be revealed against the background of a combined effect of different physicochemical and ecological factors. It is suggested that subsequent changes in the level of radioactive contamination of small mammals will generally reflect only the dynamics of physical 90Sr and 137Cs decay, but, nevertheless, seasonal and local variations in this level will be significant. 相似文献
18.
19.
20.
A. V. Ilyinykh D. K. Kurenshchikov A. A. Baburin E. L. Imranova 《Russian Journal of Ecology》2011,42(3):236-240
For the first time, an attempt has been made to reveal possible causes of the relative “brevity” of gypsy moth outbreaks in
the Russian Far East. The results show that major factors limiting these outbreaks include the weakly manifested seasonal
drift of gypsy moth foci, oviposition habits, as well as specific weather conditions during the period of larval development
and death that facilitating the dispersal of insect pathogens in components of the forest ecosystem. 相似文献