不同生境土壤pH分布及其土壤养分特征--以莫莫格湿地为例  

The pH Distribution and Soil Nutrient Characteristic at Different Habitats-A Case Study of Momoge Wetland

作　　者：王翊婷 臧淑英[1] WANG Yi-ting;ZANG Shu-ying(Heilongjiang Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions,Harbin Normal University,Harbin,Heilongjiang 150025)

机构地区：[1]哈尔滨师范大学寒区地理环境监测与空间信息服务黑龙江省重点实验室,黑龙江哈尔滨150025

出　　处：《安徽农业科学》2022年第5期135-139,共5页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划项目(2016YFC0500404-6)。

摘　　要：分析了吉林省莫莫格湿地区域7种不同生境表层土壤(0~20 cm)样本pH和养分情况。结果表明,不同生境土壤pH和养分情况有明显差异。研究区土壤均为碱性土壤,pH在杨树次生林生境和玉米农田生境处于相对较低水平,分别为7.99±0.12和8.14±0.19。在不同生境中,裸露地表土(无植被覆盖)的有机碳和全钾含量最高,裸露碱斑地全氮含量最高,玉米农田生境铵态氮含量最高,杨树次生林生境硝态氮含量最高,羊草草甸生境全磷含量最高,芦苇生境速效钾含量最高。土壤各项指标间土壤pH与土壤全氮、全钾和速效钾含量具有相关性。pH values and nutrients of topsoil samples(0-20 cm)from seven different habitats were analyzed in Momoge Wetland,Jilin Province.The results indicated that there were significant differences in soil pH and nutrients in different habitats.The soils in the study area were all alkaline soils,and the pH values were relatively low in the poplar secondary forest and maize field,which were 7.99±0.12 and 8.14±0.19.In different habitats,TOC contents and TK contents in bare surface soil(no vegetation cover)were the highest,TN contents in exposed alkali patch were the highest,the contents of ammonium nitrogen were the highest in maize field habitat,the contents of nitrate nitrogen were the highest in poplar secondary forest habitat,the TP contents were the highest in Leymus chinensis meadow habitat,and the AK contents were the highest in reed habitat.Soil pH value was correlated with TN content,TK content and AK content.

关 键 词：莫莫格湿地 PH 土壤养分 相关性分析 

分 类 号：S158[农业科学—土壤学]