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871.
随着经济全球化、城市化进程的加剧,城市生态的规划建设对社会经济发展起着至关重要的作用。从可持续发展视域探讨当前城市规划建设中存在的由规划滞后、规划重复、规划片面、执法不严等造成的城市规划环境污染、资源浪费和生态破坏的问题,提出构建城市生态规划的现实必然性和基本原则,从强化机制、转变观念、以人为本、健全法制、合理规划等角度探讨可持续发展视阈下城市生态规划的途径。 相似文献
872.
873.
Yan Guo Zibin Luo Junhao Shen Yu-You Li 《Frontiers of Environmental Science & Engineering》2022,16(7):84
874.
Luo Rui Yang Shiliang Wang Zhiying Zhang Tianming Gao Pengqun 《Environmental science and pollution research international》2022,29(14):20234-20248
Environmental Science and Pollution Research - The motivation of this fundamental research is to reveal the response of ecosystem services to land use change and to support the sustainable... 相似文献
875.
Ashraf Junaid Luo Liangqing Anser Muhammad Khalid 《Environmental science and pollution research international》2022,29(6):8438-8451
Environmental Science and Pollution Research - The effect of quality institutions on growth-environmental nexus is a generally ignored topic, especially in South Asia economies affiliated with the... 相似文献
876.
Yuan Qingjiang Sui Meiping Qin Chengzhi Zhang Hongying Sun Yingjie Luo Siyi Zhao Jianwei 《Environmental science and pollution research international》2022,29(18):26045-26062
Environmental Science and Pollution Research - Macrolide antibiotics (MAs), as a typical emerging pollutant, are widely detected in environmental media. When entering the environment, MAs can... 相似文献
877.
Wang Ling-Yu Li Xue Luo Kun Song Yu-Hao Liu Ren-Guo 《Environmental science and pollution research international》2022,29(48):72159-72168
Environmental Science and Pollution Research - In this study, cationic polyacrylamide (CPAM)-modified diatomite and cetyl trimethyl ammonium bromide (CTAB)-modified... 相似文献
878.
Ping L Luo Y Wu L Qian W Song J Christie P 《Environmental geochemistry and health》2006,28(1-2):189-195
The mobility of phenanthrene (PHE) in soils depends on its sorption and is influenced by either the existing soil humus or exogenous humic substances. Exogenous humic acids (HAs) were added to soil to enhance the amount of soil organic carbon (SOC) by 2.5, 5.0, and 10.0 g kg−1. PHE desorption of the treated soils was determined at two pH levels (3.0 and 6.0) and temperatures (15 and 25 °C). Soil PHE adsorption was related to pH and the type and quantity of added HAs. Humic acid (HA) and fulvic acid (FA) derived from peat had different effects on adsorption of PHE. Adsorption increased at first and then decreased with increasing quantity of exogenous FA. When the soil solution pH (in 0.005 M CaCl2) was 4.5 or 3.0, the turning points were 2.5 g FA kg−1 at pH 3.0 and 5 g FA kg−1 at pH 4.5. When soil solution pH was 6, the amount of adsorbed PHE was enhanced with increasing exogenous HAs (HA or FA) and amount of adsorption by soil treated with FA was higher than with HA. Adsorption of PHE in the FA treatment at 10.0 g kg−1 was lower than the controls (untreated soil or treatment with HAs at 0 g kg−1) when the soil solution pH was 3.0. This suggests that FA adsorbed by soil was desorbed at low pH and would then increase PHE solubility, and PHE then combined with FA. PHE adsorption was usually higher under lower pH and/or lower temperature conditions. PHE sorption fitted the Freundlich isotherm, indicating that exogenous humic substances influenced adsorption of phenanthrene, which in turn was affected by environmental conditions such as pH and temperature. Thus, exogenous humic substances can be used to control the mobility of soil PAHs under appropriate conditions to decrease PAH contamination. 相似文献
879.
880.
In this paper, marine brown algae Laminaria japonica was chemically-modified by crosslinking with epichlorohydrin (EC(1), EC(2)), or oxidizing by potassium permanganate (PC), or only washed by distilled water (DW). They were used for equilibrium sorption uptake studies with lead. As can be seen from the experimental results that biosorption equilibriums were rapidly established in about 2h. The lead adsorption was strictly pH dependent, and maximum removal of lead on biosorbents were observed at pH 5.3. The effects solid/liquid ratio on lead biosorption was also investigated. The maximum lead uptakes were 1.67 mmol g(-1), 1.62 mmol g(-1), 1.54 mmol g(-1) and 1.21 mmol g(-1), respectively for EC(1), EC(2), PC and DW. The order of maximum lead uptakes for different pretreated and raw alga was EC(1)>EC(2)>PC>DW. A comparison of different isotherm models revealed that the combination of Langmuir and Freundlich (L-F) isotherm model fitted the experimental data best. 相似文献