[Effect of Fire-deposited Charcoal on Soil Organic Carbon Pools and Associated Enzyme Activities in a Recently Harvested Plantation Subjected to Broadcast Burning].

Charcoal is a carbonaceous particulate matter with a highly aromatic structure produced by incomplete combustion, and it can cause persistent long-term effects on soil ecological functions. In this study, we determined soil organic carbon pools and associated enzyme activities following five years of different charcoal treatments[charcoal removal (B), charcoal retained in situ (B), and the addition of charcoal removed from B(B)] and the unburnt control (UB) in a recently harvested plantation subjected to broadcast burning. The results showed that dissolved organic carbon (DOC), microbial biomass carbon (MBC), coarse and fine particulate organic carbon (CPOC and FPOC), and recalcitrant carbon (RC) contents were significantly lower in B than those in UB soil (<0.

[Soil Enzyme Stoichiometric Characteristics of Plantations at Different Stand Ages in Mid-subtropical Areas].

Soil enzyme activity is an important index to characterize the nutrient requirements and nutrient limitations of soil microorganisms. In this study, plantations of different stand ages (9, 17, 26, 34, and 43 a) in mid-subtropical China were taken as the research object; the activities of -glucosidase (BG), -acetyl--glucosaminidase (NAG), leucine amino-peptidase (LAP), acid phosphatase (AP), polyphenol oxidase (POX), and peroxidase (POD) were determined; and soil enzyme stoichiometric ratios were also calculated to investigate the soil microbial nutrient limitations of plantation development. The results showed that the activities of BG, NAG, AP, POX, and POD were enhanced with the increase in stand age, and the activity of LAP was the lowest at 17 a, which showed a significant difference and fluctuated among the neighboring stand ages.

Characterization of the complete chloroplast genome of (Liliaceae).

is a perennial ornamental plant in the family Liliaceae, it is also a valuable medicinal plant. To enrich the genetic resources of , its chloroplast genome was determined by Illumina sequencing data. The chloroplast genome is a typical quadripartite structure with a size of 153,983 bp, of which the LSC region is 83,471 bp, the SSC region is 18,010 bp, and the pair of IR regions is 26,251 bp.

[Pharmacognostical study on four origin plants of folk medicine Sikuaiwa].

In order to develop characteristic folk medicine resources in Jiangxi, a pharmacognostical study was systematically performed for four different origin plants of Sikuaiwa, the result of study provides the microscopic features of powder and tissue of the crude drug. The research provided reference for the identification of Sikuaiwa, as well as a theoretical basis for the further development and the formulation of quality standards.