[Advances in the research of transformation and stabilization of soil organic carbon from plant and microbe].

Soil organic carbon (SOC) is the core component of terrestrial carbon (C) sink. Exploring the transformation and stabilization mechanism of SOC is key to understand the function of terrestrial C sink which copes with climate change. The traditional perspective is that plant residues are the initial source of SOC.

Psychometric investigation of the Chinese version of the Habit, Reward and Fear Scale (HRFS).

Background: Tobacco use is one of the most important risk factors for health, and China is the largest producer and consumer of tobacco in the world. Monitoring and controlling the tobacco epidemic is an important issue. However, the motivation underlying smoking behavior is complex and specific to the individual.

Revegetation pattern affecting accumulation of organic carbon and total nitrogen in reclaimed mine soils.

Selecting optimal revegetation patterns, i.e., patterns that are more effective for soil organic carbon (SOC) and total nitrogen (TN) accumulation, is particularly important for mine land reclamation.

[Applicability of HYDRUS-1D model in simulating the soil moisture in deep profiles on the Weibei rainfed highland, China].

Soil water balance has been greatly changed with the implementation of ecological restoration in the Loess Plateau. Some hydrological variables, such as deep drainage, can be hardly determined by traditional monitoring methods, and thus need to be analyzed by models. We simulated vertical distribution and time variation of soil moisture within 10 m profiles under a farmland and apple orchard by HYDRUS-1D model, and further evaluated model applicability.

[Quality of commercial Amomum villosum].

In recent years, with the price rise of Amomum villosum, the quality of A. villosum in the market has been in disorder. To understand the quality status of A.

Clinical data analysis of 19 cases of community-acquired adenovirus pneumonia in immunocompetent adults.

The aim of this study was to investigate the characteristics of clinical manifestations, laboratory tests and imaging changes of community-acquired adenovirus pneumonia in immunocompetent adults. A retrospective study was performed on 19 adult community-acquired adenovirus pneumonia cases in Yantai, whereby the clinical data were collected and analyzed. Of 19 cases, 14 (73.

Diversity and taxonomy of endophytic xylariaceous fungi from medicinal plants of Dendrobium (Orchidaceae).

Dendrobium spp. are traditional Chinese medicinal plants, and the main effective ingredients (polysaccharides and alkaloids) have pharmacologic effects on gastritis infection, cancer, and anti-aging. Previously, we confirmed endophytic xylariaceous fungi as the dominant fungi in several Dendrobium species of tropical regions from China.

[Research of seedling quality grading of Dendrobium nobile].

Objective: To establish the seedling quality grading standard of Dendrobium nobile.

Methods: Height, stem thickness and stem nodes of seedlings (test-tube seedling and cutting seedling) from Chishui city Guizhou province were tested. Through statistical analysis, the key indicators for seedling quality grading were defined.

[Profile variability of soil properties in check dam on the Loess Plateau and its functions].

To understand the profile variability of soil properties of check dam and its possibility of engineering control over non-point source pollution, we used classical statistics to characterize the profile change of soil properties of a 5.20 m depth soil profile in the typical check dam on the Loess Plateau. The roles of check dam as organic carbon storage and available nutrients storage were discussed.

[Spatial variability and the relationships of soil mineral N and topographic factors in a small watershed].

Objective of this study was to understand the spatial pattern of soil properties and topographic factors and their relationships in a small watershed. We used classical statistical coupling with geo-statistical theory to characterize and compare the spatial variability of soil mineral N and topographic factors in the wind-water erosion crisscross region on the Loess Plateau. The results show that: 1) The nitrate's variable extent is strong while other properties are moderate variability, and the impacts of soil types, land uses on variable extent are significant.