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国家重点基础研究发展计划(2013)

作品数:3 被引量:13H指数:2
相关作者:杨敏张廷模徐世军黄巍沈涛更多>>
相关机构:成都中医药大学更多>>
发文基金:国家重点基础研究发展计划国家自然科学基金更多>>
相关领域:医药卫生农业科学更多>>

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对中药学概念体系雏形构建的研究被引量:8
2015年
目的:构建中药学概念体系雏形。方法:应用诠释学、考据学、训诂学及计算机信息技术等方法和手段,对历代本草文献、历版中药学教材、各类中药学专著等进行系统梳理,对中药学概念进行整理与发掘。结果:界定概念类别和层次关系,规范中药学的核心概念,基本概念和一般概念。结论:初步构建了中药学概念体系。
杨敏陈勇张廷模闵志强蒋淼黄巍徐世军沈涛
关键词:中药学
应用框架理论研究中药理论框架浅析被引量:1
2017年
利用"框架"构建的方法,从框架理论角度出发运用框架理论探讨中药理论框架的研究思路,将复杂的中药理论用框架的形式简明呈现。
闵志强陈勇杨敏蒋淼黄巍徐世军张廷模沈涛
关键词:中药理论
^137Cs tracing dynamics of soil erosion,organic carbon,and total nitrogen in terraced fields and forestland in the Middle Mountains of Nepal被引量:4
2016年
The Middle Mountains is one of the regions of Nepal most vulnerable to water erosion, where fragile geology, steep topography, anomalous climatic conditions, and intensive human activity have resulted in serious soil erosion and enhanced land degradation. Based on the 137 Cs tracing method, spatial variations in soil erosion, organic carbon, and total nitrogen(TN) in terraced fields lacking field banks and forestland were determined. Soil samples were collected at approximately 5 m and 20 m intervals along terraced field series and forestland transects respectively. Mean 137 Cs inventories of the four soil cores from the reference site was estimated at 574.33 ± 126.22 Bq m-2(1 Bq(i.e., one Becquerel) is equal to 1 disintegration per second(1 dps)). For each terrace, the 137 Cs inventory generally increased fromupper to lower slope positions, accompanied by a decrease in the soil erosion rate. Along the entire terraced toposequence, 137 Cs data showed that abrupt changes in soil erosion rates could occur between the lower part of the upper terrace and the upper part of the immediate terrace within a small distance. This result indicated that tillage erosion is also a dominant erosion type in the sloping farmland of this area. At the same time, we observed a fluctuant decrease in soil erosion rates for the whole terraced toposequence as well as a net deposition at the toe terrace. Although steep terraces(lacking banks and hedgerows) to some extent could act to limit soil sediment accumulation in catchments, soil erosion in the terraced field was determined to be serious. For forestland, with the exception of serious soil erosion that had taken place at the top of slopes due to concentrated flows from a country road situated above the forestland site, spatialvariation in soil erosion was similar to the "standard" water erosion model. Soil organic carbon(SOC) and TN inventories showed similar spatial patterns to the 137 Cs inventory for both toposequences investigated. However, due to the different dominant erosion
SU Zheng-anXIONG Dong-hongDENG WeiDONG Yi-fanMA JingPADMA C PoudelGURUNG B Sher
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