SHAO Wenshan,LI Guoqi,CHEN Keyuan,et al.Characteristics of Soil Nutrient and Soil Microorganisms Under Four Common Plant Communities in Desert Steppe[J].Northern Horticulture,2016,40(15):161-166.[doi:10.11937/bfyy.201615040]
荒漠草原四种常见植物群落土壤养分及土壤微生物特征
- Title:
- Characteristics of Soil Nutrient and Soil Microorganisms Under Four Common Plant Communities in Desert Steppe
- Keywords:
- plant communities; soil nutrition; microorganism; desert steppe
- 文献标志码:
- A
- 摘要:
- 以宁夏盐池县典型的荒漠草原区为例，选取了该地区4种常见的植物群落，分析了不同植物群落土壤养分和土壤微生物的差异性及相关性。结果表明：不同植物群落土壤养分各指标均具有差异性。苦豆子群落土壤全氮、碱解氮含量相对较高，芨芨草群落土壤有机碳含量较高，油蒿群落土壤养分普遍较为贫瘠，盐爪爪群落土壤速效磷含量相对较高。4种植物群落土壤三大微生物数量在不同群落同一土层间、同一群落不同土层间均各具差异，但4种群落土壤微生物数量均表现为细菌>放线菌>真菌。4种植物群落土壤养分与土壤微生物各指标间相关性存在差异。苦豆子群落中各指标间关系最为密切，芨芨草群落次之，油蒿、盐爪爪群落各指标间关系较为复杂。由此，根据不同植物群落土壤养分、土壤微生物的特征，可为荒漠草原恢复与治理提供一定的参考依据。
- Abstract:
- The typical desert steppe in Yanchi，Ningxia was taken as example，selecting 4 kinds of common plant communities in the region，diversity and correlation of soil nutrient and soil microorganisms in different plant communities were analyzed.The results showed that the soil nutrient indexes had differences among different plant communities.The soil total nitrogen and alkaline nitrogen contents of Sophora alopecuroides community were relatively higher，the soil organic carbon content of Achnatherum splendens community was higher，the soil nutrient was generally poorer in Artemisia ordosica community，the soil available phosphorus content of Kalidium foliatum community was relatively higher.The quantities of 3 kinds of soil microorganisms in all 4 kinds of plant communities were different form each other in the same soil layer of different communities and in the different soil layers of the same community，but the quantities of soil microorganisms in 4 kinds of plant communities were bacteria>actinomycetes>fungi.There were differences of the correlations between soil nutrient and soil microorganisms in every index among 4 kinds of plant communities.The relations of various indexes of S.alopecuroides community were the most close，that of A.splendens community took the second place，that of A.ordosica and K.foliatum community were more complicated.Thus，according to the characteristics of soil nutrient and soil microorganisms of different plant communities，and provided a certain reference basis for desert grassland restoration and management.
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备注/Memo
第一作者简介：邵文山（1990-），男，硕士研究生，现主要从事植物生态学和土壤生态学等研究工作。E-mail：jinhaide@163.com.责任作者：李国旗（1965-），男，博士，研究员，现主要从事植物生态学等研究工作。E-mail:guoqilee@163.com.基金项目：国家自然科学基金资助项目（31540007）。