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A spontaneous mutation, tentatively named d63, was derived from the twin-seedling progenies of rice crossed by diploid SARIII and Minghui 63. Compared with wild-type plants, the d63 mutant showed multiple abnormal phenotypes, such as dwarfism, more tillers, smaller flag leaf and reduced seed-setting rate and 1000-grain weight. In this study, two F 2 populations were developed by crossing between...
To reveal the spatial variability of soil heavy metals under the influence of urban expansion, Yingxing city of Jiangsu province was selected as study area. Three transects were arranged in the urban-rural ecotone. 24 surface soil samples were collected. And the contents of heavy metals including Hg, Pb, Cu and Zn were measured and analyzed. The results were as follows: (1) Hg contamination and Pb,...
This paper collected soil samples on provincial highway of Qiting of Yixing City at the leeward of the wind to study the space diversity condition of soil heavy metal pollution at the side of the road traffic under the influence of traffic. The results shows that: (1) Contents of Pb and Cu in the farmland soil on both sides of transport road existed accumulative phenomena and they were affected by...
The main objective of this study is to discuss the quantificational risk assessment model of urban land reserve planning. Based on the proposed model, the risk of urban land reserve planning in Nanjing was evaluated by using literature data and empirical analysis. The results show that the whole situation of the risk of urban land reserve planning in each district of Nanjing was in bad situation....
A detailed chemical kinetic model for promoted SNCR process by H2, CO and CH4 was developed based on recent studies. The model was validated by available experimental data. The influence of H2, CO and CH4 on SNCR process was investigated by chemical kinetics calculation. The results indicate that H2 is more effective to lower SNCR temperature window than CO and CH4. While the additives concentration...
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