[Characteristics of nutrient accumulation and vertical spatial distribution in plantation with different stand densities].

The growth, biomass, nutrient content and accumulation as well as the vertical distribution of nutrient accumulation in plantation across densities of 1800, 3000, 4500 trees·hm were stu-died in order to provide scientific basis for efficient cultivation of plantation. The total amounts of nutrients accumulated in plantation with 1800, 3000, 4500 trees·hm were 1311.57, 2531.

-Mediated Active Responses of Plant Growth under Salt and Temperature Stress in .

The transcription factor NF-YB (nuclear factor-YB) family is a subfamily of the nuclear factor Y (NF-Y), which plays an important role in regulating plant growth, development and participates in various stress responses. Although the NF-Y family has been studied in many species, it is still obscure in . In this study, 23 genes in eucalyptus were identified and unevenly distributed on 11 chromosomes.

[Effects of undergrowth vegetation management measures on the soil bacterial community structure of large diameter timber plantation of Cunninghamia lanceolata].

Given the importance of undergrowth vegetation to plantation ecosystem, this study analyzed the effects of three kinds of understory management measures, including understory preservation, understory removal, and interplanting, on the soil bacterial diversity, community structure and relative abundance under large diameter timber plantation of Cunninghamia lanceolata using high-throughput sequencing technology. The relationship between soil physical and chemical properties and bacterial community diversity were analyzed. The results showed that Chao1, Ace and Shannon indices of soil bacterial communities of understory preservation were higher than those of understory removal and interplanting.