The Sanjiang Plain is the largest area of freshwater wetlands in China,but now it was seriously fragmented because of intensive argricltural activities since the 1950’s.Based on the changed habitat en
近几十年来,洞庭湖湿地杨树的大面积栽种是否会引起生物多样性的变化引起了社会与科学界广泛的关注.本研究以杨树2000(2000年种植)与杨树2006(2006年种植)为研究对象,以邻近的原生植被荻为对照,阐明了杨树人工林对多样性的影响.结果表明,三种植物群落(杨树2000、杨树2006、荻)在四个季节(2012年10月、2012年1月、2012年4月、2012年7月)的物种组成存在明显差异,其中杨树
A range of activated carbons were prepared from sisal fiber with phosphoric acid activation.The produced activated carbons were characterized by Nitrogen adsorption isotherms and Scanning electron mic
Novel biomass-based cyclic carbonates were prepared in high yields by treatment of terpene-based epoxy resins with carbon dioxide,using benzyltrimethylammonium chloride in conjunction with ethanediol
Activated carbons were prepared from Chinese fir wood by phosphoric acid activation.The lignocellulosic precursor impregnated with phosphoric acid was pre-treated at low temperature in the 80-160 ℃ ra
4-(4-methylpent-3-enyl)cyclohex-4-ene-1,2-dicarboxamide was synthesized with β-myrcene through Diels-Alder reaction and ammonolysis reaction.The synthetic compound was proved to be the target product
Dehydroabietic acid is an abietane diterpene that can be readily obtained from disproportionated rosin,then a series of oxime ester derivatives containing dehydroabietyl group were synthesized.Their s
The analog Vertical Flow constructed wetlands with four different substrates were built to treat chemimechanical pulping wastewater.The anthracite,shale,general biological ceramsite and fine biologica
Activated carbons were prepared from sawdust with phosphoric acid and boric acid activation.The effects of phosphoric acid-to-sawdust mass ratio,the amount of boric acid,activation temperature and act
Novel interior-hollow poly (acrylic acid)-poly (N-isopropylacrylamide) (PAA-PNIPAm) microcapsules with thermo and pH dual-responsive controlled-released property are reported.Firstly,the hydropropylce