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991.
Xiuzhen Che Alex English Jia Lu Yongqin David Chen 《Environmental Impact Assessment Review》2011,31(6):561-571
The enactment and implementation of the 2003 EIA Law in China institutionalised the role of plan environmental impact assessment (PEIA). While the philosophy, methodology and mechanisms of PEIA have gradually permeated through the various levels of government with a positive effect on the process and outcome of urban planning, only a few cities in China have so far carried out PEIA as a Strategic Environmental Assessment (SEA)-type procedure. One such case is the southern city of Shenzhen. During the past three decades, Shenzhen has grown from a small town to a large and booming city as China has successfully and rapidly developed its economy by adopting the “reform and open door” policy. In response to the challenges arising from the generally divergent processes of rapid urbanisation, economic transformation and environment protection, Shenzhen has incrementally adopted the SEA concept in developing the city's Master Urban Plan. As such, this paper reviews the effectiveness of PEIA in three ways:
•
as a tool and process for achieving more sustainable and strategic planning; •
to determine the level of integration of SEA within the planning system; and, •
its effectiveness vis-à-vis implementation.
992.
993.
Wei Jia Zhao Kai Zhang Linling Yang Ranran Wang Muxi 《Environmental science and pollution research international》2021,28(15):18850-18869
Environmental Science and Pollution Research - This study proposes a bibliometric measure to visualize and analyze the research status and development trend of carbon offset based on 1,581 articles... 相似文献
994.
Ali Shahzad Xu Yueyue Ma Xiangcheng Jia Qianmin Jia Zhikuan 《Environmental science and pollution research international》2021,28(22):27666-27680
Environmental Science and Pollution Research - Understanding the greenhouse gas emissions mechanism from the agricultural soils is essential to reach an agricultural system with a lower impact on... 相似文献
995.
Junchang Lü Philip J. Currie Li Xu Xingliao Zhang Hanyong Pu Songhai Jia 《Die Naturwissenschaften》2013,100(2):165-175
Oviraptorids are a group of specialized non-avian theropod dinosaurs that were generally one to 8 m in body length. New specimens of baby oviraptorids from the Late Cretaceous of Henan Province are some of the smallest individuals known. They include diagnostic characters such as the relative position of the antorbital fenestra and the external naris, distinct opening in the premaxilla anteroventral to the external naris, antorbital fossa partly bordered by premaxilla posterodorsally, lacrimal process of premaxilla does not contact the anterodorsal process of the lacrimal, parietal almost as long as frontal; in dorsal view, posterior margin forms a straight line between the postzygapophyses in each of the fourth and fifth cervicals; femur longer than ilium. They also elucidate the ontogenetic processes of oviraptorids, including fusion of cranial elements and changes in relative body proportions. Hind limb proportions are constant in oviraptorids, regardless of absolute body size or ontogenetic stage. This suggests a sedentary lifestyle that did not involve the pursuit of similar-sized prey. The functional implications for bite force and therefore dietary preferences are better understood through the study of such small animals. The comparison of the measurements of 115 skeletons indicates that oviraptorids maintain their hind limb proportions regardless of ontogenetic stage or absolute size, which is a pattern seen more commonly in herbivores than in carnivores. This may weakly support the hypothesis that oviraptorids are herbivores rather than active carnivores. 相似文献
996.
Ying Diwen Jia Jinping Zhang Lehua 《Frontiers of Environmental Science & Engineering in China》2007,1(3):305-310
An electrochemical-activated denitrifying biofilm system consisting of activated carbon fiber electrodes immobilized with
denitrifying bacteria film as cathode was studied. A revised model for an electrochemical-activated denitrifying biofilm was
developed and validated by electrochemical analysis of cathodal polarization curves and nitrate consumption rate. The cathodal
polarization curve and nitrate consumption rate were introduced to verify the rate of electrochemical reaction and the activity
of denitrifying bacteria, respectively. It was shown that the denitrification process effectively strengthened the electrochemical
reaction while the electron also intensified denitrification activity. Electron was transferred between electrochemical process
and biological process not only by hydrogen molecule but also by new produced active hydrogen atom. Additionally, a parameter
of apparent exchange current density was deprived from the cathodal polarization curve with high overpotential, and a new
bio-effect current density was defined through statistical analysis, which was linearly dependent to the activity of denitrification
bacteria. Activated carbon fiber (ACF) electrode was also found to be more suitable to the electrochemical denitrifying system
compared with graphite and platinum.
Translated from Environmental Pollution & Control, 2005, 27(7): 501–504 [译自: 环境污染与防治] 相似文献
997.
环境管理政策的选择是一项复杂的决策过程 ,本文拟就环境管理政策的一般原理和基本过程进行阐述。一是对环境政策、环境管理政策的选择空间进行界定 ,对环境管理政策的选择进行分析 ;二是提出环境管理政策的选择原理和评判准则 ;三是对环境管理政策选择的可操作过程进行分析和论述。并由此得出 :环境管理政策的选择应在考虑具体的外部因素以及内部因素的基础上的政策择优 ,有效的环境管理政策的选择应该是给定约束条件下的管制手段、经济手段和劝说手段的恰当组合。 相似文献
998.
陇东,陕北,晋西地区水平梯田的减灾作用 总被引:3,自引:0,他引:3
本文阐述了陇东、陕北、晋西地区坡耕地产生剧烈水土流失危害及其成因,提出了防治对策:把坡耕地修成水平梯田,可以有效地保水、保土、保肥,增强抗旱能力,对于改善当地生产条件和发展农村经济,具有战略意义。 相似文献
999.
1000.
有机废水处理中复极固定床电解槽的研究进展 总被引:1,自引:0,他引:1
在分析中 ,结合了近年来关于三维电极等应用技术以及复极固定床电解槽 (BPBC)水处理技术的研究文献 ,概括了BPBC的特点、基本原理以及有机废水处理的应用现状 ,并提出了目前复极固定床电解槽的研究中存在的问题及今后的研究发展方向 相似文献