摘要
为研究贵州酸性黄壤条件下钩藤种植对土壤性质的影响,采集剑河钩藤种植基地及其周边林地、荒草地土壤共30个,分析土壤的物理性质、养分含量、酶活性等16个指标,同时比较根际与非根际土壤的差异。结果表明,与同区域林地和荒草地土壤相比,种植钩藤使土壤微环境pH降低,容重减小,总孔隙度增大,表征土壤持水固肥能力的毛管孔隙度增大,土壤结构得到改善,更利于植物生长,土壤养分得到充分有效利用,酶活性受到一定抑制。因此在贵州山地黄壤条件下,钩藤种植实现了土地利用的经济效益与生态环境效益协调发展。
To study the effects of Uncaria rhynchophylla grow on soil properties in acidic soil of Guizhou,30 soil samples were collected,including the U.rhynchophylla planting base land,surrounding forest land and wild grassland at Jianhe County,Guizhou,then 16 indexes including soil physical properties,nutrient content and enzyme activity were analyzed,and the differences between rhizosphere and non-rhizosphere soil were compared.The results showed that compared with forestland and grassland soil in the same area,the soil microenvironment of U.rhynchophylla-planting base was different,with lower pH and bulk density,and increased total porosity and capillary porosity of soil water and solid fertilizer capacity.The soil structure was improved,which was more conducive to plant growth,soil nutrient got full and effective use,and the enzyme activity was inhibited.Therefore,under the condition of mountainous geologic environment in Guizhou,U.rhynchophylla planted in yellow soil could get coordinated benefit between land use economic and ecoenvironment.
作者
林绍霞
曾宪平
林昌虎
肖致强
Lin Shaoxia;Zeng Xianping;Lin Changhu;Xiao Zhiqiang(Guizhou Academy of Testing&Analysis,Guiyang 550002;College of Agriculture,Guizhou University,Guiyang 550025;Guizhou Medical University,Guiyang 550001)
出处
《中国农学通报》
2020年第28期118-123,共6页
Chinese Agricultural Science Bulletin
基金
贵州省中药现代化重大专项项目“贵州石斛、半夏等6种中药材产地适宜性技术评价体系构建与产业示范”(黔科合重大专项字[2012]6010号)
国家自然科学地区基金“贵州草海高原湿地系统湖泊水体重金属多源性研究”(21767006)。
关键词
钩藤
黄壤
土壤养分
酶活性
过氧化氢酶
磷酸酶
脲酶
Uncaria rhynchophylla
yellow soil
soil nutrient
enzyme activity
catalase
phosphatase
urease
