Currently, transforming the mode of forest management and developing multiple forest management practices are actively encouraged in China. As one forest management type, ginseng cultivation under larch plantations ha...Currently, transforming the mode of forest management and developing multiple forest management practices are actively encouraged in China. As one forest management type, ginseng cultivation under larch plantations has been developed significantly in the east of Liaoning Province. However, research on the influence of the ecological environment for this mode of production is still deficient. Based on this, our study compares the plant diversity and soil properties in the ginseng cultivation under larch plantations(LG) with larch plantations(LP) and natural secondary forests(SF). First, we randomly selected three plots for each of the three stand types which have similar stand characteristics; then, we carried out a plant diversity survey and soil sampling in each of the nine plots. The results show that no significant difference was found in plant diversity between LG and LP, but theevenness of herbs was significantly lower in LG than LP. No obvious changes in soil physical properties were found in LG, but a significant decrease in most of the soil nutrient content was presented in LG. Furthermore, we found a correlation between plant diversity(H') and soil properties in the three kinds of stand types, especially between herbaceous plant diversity and soil properties. We conclude that ginseng cultivation under larch plantations has no obvious effect on plant diversity, except the herbaceous evenness. Soil fertility can be depleted significantly in LG, but physical structures are not affected. Moreover, maintaining the diversity of herbaceous plants and controlling the density of ginseng cultivation in LG by farmers are important for the ecological environment. Based on this study and its good comprehensive benefits and with the support of policy, we think this forest management type should be promoted moderately in the region.展开更多
[Objectives]The paper was to explore the correlation between active components of ginseng and community structure of endophytic fungi in ginseng under different cultivation methods.[Methods]Using ginsengs under two ma...[Objectives]The paper was to explore the correlation between active components of ginseng and community structure of endophytic fungi in ginseng under different cultivation methods.[Methods]Using ginsengs under two main planting patterns in Huanren County,Liaoning Province as the samples,the community structure of endophytic fungi was studied by molecular means,and the chemical components were identified and the content of chemical markers was measured via LC-MS.Moreover,the correlation between medicinal components of ginseng and diversity of endophytic fungal flora was analyzed.[Results]The diversity and active components of endophytic fungi of ginseng were different.The diversity analysis showed that the medicinal components of ginseng were positively correlated with some fungal groups in ginseng.[Conclusions]Artificial intervention in the planting process would affect the endophytic fungi in medicinal materials,and further affect the chemical components of ginseng medicinal materials.展开更多
基金financially supported by the research on soft science of forestry(2014-R05)consulting project of the Chinese Academy of Engineering(2013-XZ-22)
文摘Currently, transforming the mode of forest management and developing multiple forest management practices are actively encouraged in China. As one forest management type, ginseng cultivation under larch plantations has been developed significantly in the east of Liaoning Province. However, research on the influence of the ecological environment for this mode of production is still deficient. Based on this, our study compares the plant diversity and soil properties in the ginseng cultivation under larch plantations(LG) with larch plantations(LP) and natural secondary forests(SF). First, we randomly selected three plots for each of the three stand types which have similar stand characteristics; then, we carried out a plant diversity survey and soil sampling in each of the nine plots. The results show that no significant difference was found in plant diversity between LG and LP, but theevenness of herbs was significantly lower in LG than LP. No obvious changes in soil physical properties were found in LG, but a significant decrease in most of the soil nutrient content was presented in LG. Furthermore, we found a correlation between plant diversity(H') and soil properties in the three kinds of stand types, especially between herbaceous plant diversity and soil properties. We conclude that ginseng cultivation under larch plantations has no obvious effect on plant diversity, except the herbaceous evenness. Soil fertility can be depleted significantly in LG, but physical structures are not affected. Moreover, maintaining the diversity of herbaceous plants and controlling the density of ginseng cultivation in LG by farmers are important for the ecological environment. Based on this study and its good comprehensive benefits and with the support of policy, we think this forest management type should be promoted moderately in the region.
基金National Key Research and Development Program(2017YFC-1702301).
文摘[Objectives]The paper was to explore the correlation between active components of ginseng and community structure of endophytic fungi in ginseng under different cultivation methods.[Methods]Using ginsengs under two main planting patterns in Huanren County,Liaoning Province as the samples,the community structure of endophytic fungi was studied by molecular means,and the chemical components were identified and the content of chemical markers was measured via LC-MS.Moreover,the correlation between medicinal components of ginseng and diversity of endophytic fungal flora was analyzed.[Results]The diversity and active components of endophytic fungi of ginseng were different.The diversity analysis showed that the medicinal components of ginseng were positively correlated with some fungal groups in ginseng.[Conclusions]Artificial intervention in the planting process would affect the endophytic fungi in medicinal materials,and further affect the chemical components of ginseng medicinal materials.
