Yu Y.,Key Laboratory of Carrying Capacity Assessment for Resource and Environment |
Yu Y.,Chinese Academy of Land and Resource Economics |
Lei Y.,Key Laboratory of Carrying Capacity Assessment for Resource and Environment |
Lei Y.,University of the Humanities
Resources Policy | Year: 2017
Hartwick's rule, which concerns reinvesting resource rents in manmade capital, together with the concept of dynamic efficiency, dealt with by Hotelling's Rule, imply that locally constant consumption is sustainable. Based on Hartwick's rule, we have a hypothesis: if the 29 provinces in China (except Beijing and Shanghai) had invested their resource rents (from three energy resources: oil, natural gas, and coal; and nine mineral resources: iron, copper, lead, zinc, nickel, tin, antimony, molybdenum, and aluminum) in produced capital stock from 1995 to 2014, then the value of these assets should have grown commensurately over time. Using hypothetical estimates of capital stocks, the capital produced from a postulated series of historical investments, and a perpetual inventory model (PIM), the capital produced from exhaustible resources value reinvestment under Hartwick's rule is estimated. The empirical results prove that China's 29 provinces fare very well under Hartwick's rule from 1995 to 2014, and the results show that the provinces exhibit regional differences that are non-synchronous with local economic growth. Some provinces are striking: Xinjiang, Heilong, Shaanxi, Inner Mongolia, and Tianjin would have higher energy resources rent shares and lower levels of capital accumulation. Based on results, we provide managerial implications and suggestions for enhancing provincial performance under Hartwick's rule. © 2017 Elsevier Ltd
Ying Z.,China Institute of Technology |
Chao-Yu Z.,Chinese Academy of Land and Resource Economics
2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings | Year: 2011
Remediation of petroleum contaminated groundwater has become one of hotspots in environment research in recent years. PRB is a cost-effective and environmental benign technology. Based on the PRB technology abroad and domestically, this paper puts forward reactive media should be screened based on the ingredients, types and properties of the pollutants. Design and construction of PRB should be rely on the hydrogeological conditions of contaminated site. Immobilizing microorganism is an effective way to improve remediation efficiency and prolong using life of adsorption PRB. PRB has broad application prospects in remediation of petroleum contaminated groundwater. © 2011 IEEE.
Li Y.,Jilin University |
Li Q.,Jilin University |
Guo D.,Jilin University |
Guo D.,Chinese Academy of Land and Resource Economics |
And 2 more authors.
Ecological Engineering | Year: 2016
The natural Leymus chinensis grassland in western Jilin Province of NE China has been extensively degraded, thereby restricting the development of animal husbandry. Using theory of ecological stoichiometry homeostasis, this study investigated the homeostasis of L. chinensis at different degradation stages in the research area using a homeostasis model. Results showed that the degraded grassland generally had lower soil carbon (C), nitrogen (N) and phosphorus (P) compared with normal L. chinensis grassland. In particular, the degraded grassland exhibited severe shortage of P, but L. chinensis showed strong homeostasis. Except for C in the roots and leaves and P in stems, the N, P and corresponding ratios had higher homeostasis than 1, between 1.53 and 15.92. The homeostasis of N in L. chinensis was higher than that of P, and the homeostasis of C/P was higher than that of C/N and N/P. L. chinensis absorbs and uses nutritive elements in a conservative manner, which enables it to remain productive during changes in the external environment. Therefore, grassland degradation control should prioritize the protection of dominant species. Appropriate use of N and P fertilizers is suggested for the recovery of the seriously degraded L. chinensis grassland ecosystem. © 2016 Elsevier B.V..
Liao S.,Hubei University |
Chen S.,Hubei University |
Deng X.,Hubei University |
Li P.,Chinese Academy of Land and Resource Economics |
And 2 more authors.
Journal of Asian Earth Sciences | Year: 2014
The newly discovered Xi'ao Cu-Sn polymetallic deposit is located in the inner alteration zone of the Laochang-Kafang granite edge in Gejiu, Yunnan Province. The mineralization process of this deposit can be divided into four stages. Cassiterite and chalcopyrite mainly formed at stages II and III, respectively. Fluid inclusions at different stages were studied by petrography, microthermometry, and laser Raman spectrometry. Five fluid inclusion types are observed. Microthermometry results revealed that the ore-forming fluid evolved from high temperature with low to intermediate salinity to low temperature with low salinity. At stage I, the fluid was under near-critical conditions and then separated into coexisting liquid and vapor phases at stage II. Finally, the fluid was boiling and immiscible at stage III. A meteoric fluid mixing process was also observed at this stage. Laser Raman spectra identified CH4 at the skarn and mineralization stages. Combined with other geological features, the deposit was concluded to have formed under a relatively reduced environment. The CO2 component abruptly increased at stage III and probably originated from the exterior. Fluorine may play an important role in mineralization. Cassiterite and chalcopyrite were mainly deposited at 340-440 and 300-400°C under pressures of 18-50 and 12-36MPa, respectively. Boiling and immiscibility are probably the main reason for mineral deposition. The deposit of cassiterite and chalcopyrite showed similar salinities but higher temperatures than other mineralization types of deposits in the Gejiu area. This finding indicated that the study deposit probably represents the high-temperature part of the Gejiu mineralization system, thereby benefiting mineral explorations in the Gejiu area. © 2013 Elsevier Ltd.
Lin C.-M.,Nanjing University |
Li Y.-L.,Nanjing University |
Zhuo H.-C.,Nanjing University |
Zhuo H.-C.,Chinese Academy of Land and Resource Economics |
And 4 more authors.
Marine and Petroleum Geology | Year: 2010
Late Quaternary shallow biogenic gas reservoirs have been discovered and exploited in the Qiantang River (QR) estuary area, eastern China. The fall of global sea level during the Last Glacial Maximum resulted in the formation of the QR incised valley. From bottom to top, the incised valley successions can be grouped into four sedimentary facies: river channel facies, floodplain-estuarine facies, estuarine-shallow marine facies, and estuarine sand bar facies.All commercial biogenic gas pools occur in floodplain-estuarine sand bodies of the QR incised valley and its branches. The deeply incised valleys provided favorable conditions for the generation and accumulation of shallow biogenic gas.The clay beds that serve as the direct cap beds of the gas pools are mostly restricted within the QR incised valley, with burial depths ranging from 30 to 80 m, remnant thicknesses of 10-30 m, and porosities of 42.2-62.6%. In contrast, the mud beds cover the whole incised valley and occur as indirect cap beds, with burial depths varying from 5 to 35 m, thicknesses of 10-20 m, and porosities of 50.6-53.9%. The pore-water pressures of clay and mud beds are higher than that of sand bodies, and the difference can be as much as 0.48 MPa. The pore-water pressures of clay or mud beds can exceed the total pore-water pressure and gas pressure of underlying sand reservoirs. Shallow biogenic gas can be completely sealed by the clay and mud beds, which have higher pore-water pressure. The direct cap beds have better sealing ability than the indirect cap beds.Generally, the pore-water pressure dissipation time of clay and mud beds is conspicuously longer than that of sand beds. This indicates that the clay and mud beds have worse permeability and better sealing ability than the sand beds. However, once the gas enters the sand lenses, the pore-water pressure cannot release efficiently. © 2009 Elsevier Ltd.
Chen W.,Chinese Academy of Geological Sciences |
Xu Z.,Nanjing University |
Chen M.,Chinese Academy of Geological Sciences |
Yu Y.,Chinese Academy of Land and Resource Economics
Mineralogy and Petrology | Year: 2016
This paper investigates the petrogenesis of the Xinxian granitic batholith and its tectonic implications for the Dabie orogen. Two Xinxian granites yield Early Cretaceous 238U/206Pb ages of 122.7 ± 1.3 Ma and 123.6 ± 2.2 Ma. The granites are metaluminous differentiated I–type granites, with A/NKC ranging from 0.90 to 0.96. The chondrite–normalised REE patterns display significant LREE/HREE enrichments with moderate negative Eu anomalies (Eu/Euδ = 0.30 ~ 0.85). The granites show enrichments in large–ion lithophile elements (LILEs, e.g. Rb, K, Th and U) and depletions in Sr, Ba and high field strength elements (HFSEs, e.g. Nb, Ta and Ti). Inherited zircons of different age (Neoproterozoic, one Early Proterozoic, one Archean and two Triassic inherited metamorphic zircons) are identified. The Early Cretaceous magmatic zircons contain enriched Hf isotopes with εHf (t) values ranging from −26.9 to −18.7 (average = −22.5), more enriched than their probable alleged source, i.e. the Dabie Complex, represented by the Neoproterozoic and Triassic inherited zircons. Thus, the Archean and Early Proterozoic crustal materials may represent an enriched end member source for the parental magma of the Xinxian granites. Provenance analysis of the magmatic zircons in the North China and Yangtze blocks demonstrates that the Early Proterozoic inherited zircon in Xinxian has North China affinity. Thus, we proposed a multiple–sourced petrogenetic model for the Xinxian granitic batholith, which suggests that the batholith was formed by the remelting of a mixed crustal assemblage, including the Archean and Early Proterozoic crust of the North China Block, the Neoproterozoic crust of the Yangtze Block, as well as some Triassic collision–related ultra–high pressure (UHP) metamorphic rocks. © 2015, Springer-Verlag Wien.
Yu H.,China Earthquake Administration |
Xu J.,China Earthquake Administration |
Luan P.,Chinese Academy of Land and Resource Economics |
Zhao B.,China Earthquake Administration |
Pan B.,China Earthquake Administration
Natural Hazards | Year: 2013
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 developed a simple and practical diffusion program that can be run on a personal computer. The input parameters for the simulation of tephra fallout from the Millennium Eruption of Changbaishan volcano, such as the size, density and shape of the tephra, the bulk volume and column height, the diffusion parameter P(z), wind direction and intensity, were obtained by field investigation and laboratory analysis. The simulated results in the intermediate scope when the parameter β > 0.3 are in good agreement with the results from measurement in situ, indicating that the model is reliable and the parameters used in the model are reasonable. We carried out more than 20,000 tephra fallout simulations using a statistical dataset of wind profiles which are obtained from China Meteorological Data Sharing Service System (CMDSSS). Tephra fallout hazard probability maps related to high- and low- magnitude eruption scenarios in Changbaishan volcano, are constructed for several tephra thickness thresholds, such as 70, 20, 10 and 1 cm. The results from this study can give support to the risk mitigation plans in Changbaishan area. © 2013 Springer Science+Business Media Dordrecht.
Zhang C.Y.,Chinese Academy of Land and Resource Economics
Applied Mechanics and Materials | Year: 2014
Taking Liguanpu riverside well field in Shenyang as the object, groundwater sustainable exploitation is calculated by groundwater flow numerical simulation method. Optimizing and adjusting the groundwater pumping wells will be more convenient and intuitive by established simulation model so that we can exploit groundwater resource reasonably, it is a good way to improve the production of water source. Groundwater sustainable exploitation is 10.03×104m3/d. The optimized pumping well has contributed to infiltration recharge from captured surface water resources and adjacent groundwater lateral recharge. It benefits groundwater to be exploited and used in reason. © (2014) Trans Tech Publications, Switzerland.
Fu Y.,Huazhong University of Science and Technology |
Zhang C.,Chinese Academy of Land and Resource Economics |
Zhang B.,Chinese Academy of Land and Resource Economics
Advanced Materials Research | Year: 2013
As a renewable energy, shallow geothermal energy has received extensive concerns in China, and is regarded as an important means to relieve the pressure in energy supply, meet the greenhouse gas control obligations and establish a low-carbon economy system. In recent years, a series of policies and regulations for promoting the utilization of shallow geothermal energy has been issued. This paper firstly makes an analysis of the patterns and the growing trend of shallow geothermal energy utilization, and then establishes the analysis paradigms of the economic, environmental and social benefits of its utilization, taking Tianjin as a case. Finally, a policy system to promote the utilization of shallow geothermal energy is proposed. © (2013) Trans Tech Publications, Switzerland.
Zhang Y.,Institute of Disaster Prevention |
Zhang C.Y.,Chinese Academy of Land and Resource Economics |
Peng Y.F.,Institute of Disaster Prevention |
Zhang J.,Institute of Disaster Prevention
Advanced Materials Research | Year: 2014
In order to find out the migration rules of radon transport in porous aquifer medium, transport process of radon in natural groundwater environment was simulated by laboratory seepage sand box experiment. This paper made in-depth discussions on the migration rules of radon in groundwater and soil and revealed the behaviours of radon in the environment. The experimental results indicated that convection dominated on the movement of radon in porous aquifer medium. The lateral migration of radon was due to not only diffusion but also carrying of groundwater, adsorption of porous medium, decay and volatilization. The lateral migration played an important part in the movement of radon. The cluster theory and microbubble theory in the existing research results were not the the principal migration mechanism of radon transport in porous aquifer medium. Release and accumulation, volatilization, decay, adsorption and convection should be the result of different periods of peak during the process of radon movement. The findings provided the scientific evidence for quantitative study of migration behaviours of radon in the underground environment and further support for the theory that the application of radon in oil and gas exploration, detection of ground fissures, earthquake monitoring and prediction and so on. © (2014) Trans Tech Publications, Switzerland.