LIU Xiaolan,WANG Ke,WANG Daoping,et al.Effects of Different Planting Patterns on Soil Physical and Chemical Properties and Stoichiometric Characteristics in Carbonate Area[J].Northern Horticulture,2021,(19):92-99.[doi:10.11937/bfyy.20210817]
碳酸盐岩地区不同种植方式对农田土壤理化性质的影响及化学计量特征
- Title:
- Effects of Different Planting Patterns on Soil Physical and Chemical Properties and Stoichiometric Characteristics in Carbonate Area
- Keywords:
- planting pattern; yellow soil; physical and chemical properties; stoichiometric ratio; carbonate area
- 文献标志码:
- A
- 摘要:
- 以贵州省开阳县不同种植方式下的黄壤为供试样品，采用野外调查和室内分析相结合的方法，测定了土壤pH、容重、有机质、全氮、碱解氮、全磷、速效磷、全钾和速效钾含量,以期为碳酸盐岩地区土地合理开发利用和改良提供参考依据。结果表明：单作与连作下的各项理化指标呈现相同趋势，即容重和速效钾表现为种植前高于收获后，而土壤pH、有机质、全氮、碱解氮、全磷、速效磷和全钾含量均表现为收获后高于种植前；间作下的pH、容重、碱解氮、全钾和速效钾含量表现为种植前高于收获后，而土壤有机质、全氮、全磷和速效磷含量均表现为收获后高于种植前。整体而言，3种种植方式下，土壤pH表现为连作>间作>单作；容重表现为间作>单作>连作；土壤有机质、全氮、碱解氮、全磷、速效磷、全钾以及速效钾含量变化趋势均相同，即在3种种植方式中均表现为间作>连作>单作；土壤C/P和N/P在3种种植方式下表现为单作>连作>间作，而土壤C/N表现为单作>间作>连作。
- Abstract:
- The yellow soil samples under different planting patterns in Kaiyang county of Guizhou Province were used to determine the contents of pH,bulk density,organic matter,total nitrogen,alkali hydrolyzable nitrogen,total phosphorus,available phosphorus,total potassium and available potassium in the soil,in order to provide reference for the rational development,utilization and improvement of land in carbonate area.The results showed that the physical and chemical indexes of monoculture and continuous cropping showed the same trend,the bulk density and available potassium were higher before planting than after harvest,while the soil pH,organic matter,total nitrogen,alkali hydrolyzable nitrogen,total phosphorus,available phosphorus and total potassium were higher after harvest than before planting;under intercropping,pH,bulk density,available N,total K and available K were higher before planting than after harvest,while soil organic matter,total N,total P and available P were higher after harvest than before planting;on the whole,the soil pH of three planting patterns was continuous cropping>intercropping>monoculture;the bulk density of intercropping>monoculture>continuous cropping;the change trend of soil organic matter,total nitrogen,alkali hydrolyzable nitrogen,total phosphorus,available phosphorus,total potassium and available potassium were the same,that was intercropping>continuous cropping>monoculture;soil C/P and N/P showed monoculture>continuous cropping>intercropping,while soil C/N showed monoculture>intercropping>continuous cropping.
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备注/Memo
第一作者简介：柳小兰（1988-），女，硕士，助理研究员，现主要从事土壤资源保护与利用等研究工作。E-mail:952741179@qq.com. 责任作者：张清海（1982-），男，博士，研究员，现主要从事土壤资源保护与利用、环境科学等研究工作。E-mail:zhqh8@163.com.基金项目：国家自然科学基金资助项目（31960507,21767006）;贵州省科技计划资助项目（黔教合KY字[2020]014）。收稿日期：2021-02-25