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Metamorphosis is one of the most important physiological processes in insects. It is regulated by a serial of ecdysone cascade genes. Recently, lots of microRNAs (miRNAs) were investigated in insects; however, their function in metamorphosis is largely unknown. In the present study, the dynamics of a small RNA population was investigated by RNA sequencing from the midgut of a lepidopteran pest Spodoptera litura...
Based on the practical monitoring data of Erlongshan Reservoir, the paper estimated the status of the eutrophication by the comprehensive trophic state index method. The results indicated that the Erlongshan Reservoir was between mesotropher and Light eutropher with the index from 46.5903 to 57.3904. The degree of eutrophication was in the order of high flow period>average and low period. According...
Various types of pollution source were evaluated in this paper through investigation and analysis in the watershed of Xiquanyan reservoir in recent years. Provide scientific and effective reference and technical support in preventing eutrophication of Xiquanyan reservoir and implementing protection and management decisions by government. Calculation and analysis showed the conclusions: Farmland non-point...
Ecological carrying capacity indexes of Hegang of Heilongjiang province, Naiman country of Inner Mongolia and Luzhou of Sichuan province are calculated respectively by the comprehensive assessment based on AHP and the ecological footprint model. The results show that the CCPS is below 1 before and after the three regional planning, and the regions have room for development; there are still some constraints:...
Based on the analysis of the water quality monitoring data of Xingkai Lake in 2008, the eutrophic level of the water body was evaluated through a comprehensive trophic state index method. The results showed that the comprehensive trophic state index (CTSI) was 47.7 for Da Xingkai and 50.1 for Xiao Xingkai, which indicated that Da Xingkai is in a mesotrophic state and Xiao Xingkai in a light eutrophic...
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