Decomposition analysis of carbon emissions: Considering China’s energy efficiency

Carbon emissions reduction has become a public concern since Paris Climate Conference in 2015, while energy efficiency improvements and the development of clean energy are crucial to carbon reduction. To investigate carbon dioxide emissions in China at different phases in 2000–2016, this research adopts the logarithmic mean Divisia index (LMDI) technique to study four drivers: population, economic development level, energy intensity, and carbon emission intensity. The results show that: (1) The rate of increase in CO2 emissions has decreased from an average of 10.6% in 2000–2011 to 0.79% in 2011–2016; (2) Declining energy intensity (-39.89%) is the largest contributor to China’s carbon reduction among the four drivers in 2012–2016, followed by declining carbon emission intensity (-9%); (3) With rising energy efficiency and increased use of clean energy, China is transitioning to a sustainable economy. More innovative green technologies should be employed to enhance the efficiency of energy use and optimize energy structure to combat climate change

The chloroplast genome of Cuphea hookeriana Walp. (Lythraceae), a Mexico ornamental plant

Cuphea hookeriana Walp. is an ornamental plant belonging to the Lythraceae. In this study, we reported the complete chloroplast (cp) genome sequence here and analyzed the phylogenetic relationship among Lythraceae plants. The length of the cp genome was 158,999 bp, including a large single-copy (LSC, 89,311 bp) region and a small single-copy (SSC, 18,436 bp) region separated by a pair of inverted repeats (IRs, 25,626 bp). There were 72 unique protein-coding genes (PCGs), 30 transfer RNA (tRNA) genes, and four ribosomal RNA (rRNA) genes in the cp genome of C. hookeriana. A total of 223 simple sequence repeats (SSRs) and 34 long repeat sequences were identified. Phylogenetic analyses using maximum-likelihood (ML) revealed that C. hookeriana was close to C. hyssopifolia. In addition, the two Cuphea species were the sister group of Woodfordia fruticosa