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[1]贺静雯,刘颖,吴建召,等.震区生态恢复初期土壤养分含量与微生物生物量特征的关系[J].应用与环境生物学报,2019,25(05):1044-1052.[doi:10.19675/j.cnki.1006-687x.2018.12015]
 HE Jingwen,LIU Ying,et al.Relationship between soil nutrient content and microbial biomass characteristics during an early ecological restoration stage in an earthquake affected area[J].Chinese Journal of Applied & Environmental Biology,2019,25(05):1044-1052.[doi:10.19675/j.cnki.1006-687x.2018.12015]
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震区生态恢复初期土壤养分含量与微生物生物量特征的关系
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年05期
页码:
1044-1052
栏目:
研究论文
出版日期:
2019-10-31

文章信息/Info

Title:
Relationship between soil nutrient content and microbial biomass characteristics during an early ecological restoration stage in an earthquake affected area
作者:
贺静雯刘颖吴建召崔羽罗清虎林勇明王道杰李键
1福建农林大学林学院 福州 350002 2福建省高校森林生态系统过程与经营重点实验室 福州 350002 3中国科学院水利部成都山地灾害与环境研究所 成都 640041
Author(s):
HE Jingwen1 2 LIU Ying1 2 WU Jianzhao1 2 CUI Yu1 2 LUO Qinghu1 2 LIN Yongming1 2** WANG Daojie3 & LI Jian1 2
1 College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China 2 Key Laboratory for Forest Ecosystem Process and Management of Fujian Province, Fuzhou 350002, China 3 Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 640041, China
关键词:
地震灾区土壤养分土壤微生物生态恢复气候
Keywords:
earthquake affected area soil nutrient soil microorganism ecological restoration climate
分类号:
S154.1
DOI:
10.19675/j.cnki.1006-687x.2018.12015
摘要:
为探究地震灾区不同气候区的初期生态恢复过程,选取汶川地震重灾区汶川县(干旱河谷气候区)和绵竹市(亚热带季风性气候区)的受损治理样地与未受损样地,对比研究表层土壤(0-20 cm)全养分(有机碳SOC、全氮TN)、速效养分(水解性氮、有效磷、速效钾)和微生物生物量含量. 结果表明:同一气候区内,不同土壤层次SOC含量和0-5 cm、5-10 cm层土壤TN含量均表现为未受损区显著高于受损治理区(P < 0.05). 其中,在亚热带季风气候区,受损治理区的水解性氮(AN)和微生物量碳(MBC)含量在不同土壤层次显著低于未受损区(P < 0.05),真菌数量与速效钾(AK),放线菌数量与土壤SOC,TN与细菌、真菌、放线菌数量在未受损区均存在显著相关性(P < 0.05);在干旱河谷气候区,未受损区不同层次土壤有效磷(AP)和微生物量氮(MBN)含量显著高于受损治理区(P < 0.05),MBC与AN、AP,MBN与SOC、TN,细菌数量与AK在受损治理区存在显著相关(P < 0.05),真菌数量与AP在未受损区存在显著相关(P < 0.05). 典范相关分析发现,土壤中AK、TN含量与细菌数量、MBC含量,AK含量与真菌数量具有正相关关系. 因此,震后受损区土壤速效养分、生物肥力不及未受损区,需加大土壤培肥力度,提高土壤速效养分含量,增加土壤微生物数量,从而改善土壤健康状况,促进生态恢复. (图3 表5 参41)
Abstract:
To explore the initial ecological restoration process of earthquake-affected areas in different climate zones, two study sites were chosen: 1) the ecological restoration demonstration area of Wenchuan County (arid valley climate zone), and 2) Mianzhu City (subtropical monsoon climate zone). In each site, destroyed and treated, and undestroyed areas comprised the sample plots. Total nutrient content (soil organic carbon, SOC and total nitrogen, TN), available nutrient content (hydrolyzed nitrogen, AN; available phosphorus, AP; and available potassium, AK), and microbial biomass in the surface soil (0-20 cm) were evaluated. The SOC content in different soil layers and soil TN content (0-5 cm and 5-10 cm) were significantly higher in the undestroyed areas than in the destroyed and treated areas in both climatic regions (P < 0.05). Hydrolyzed nitrogen and microbial carbon (MBC) contents in different soil layers in the subtropical monsoon climate zone were significantly lower in the destroyed and treated areas than in the undestroyed areas (P < 0.05). Significant correlations were observed between fungi abundance and AK, actinomycete abundance and SOC, TN content and bacterial abundance, and fungi and actinomycete abundance in undestroyed areas (P < 0.05). Available phosphorus and microbial nitrogen (MBN) contents in different soil layers in the arid valley climate zone were significantly higher in the undestroyed areas than in the destroyed and treated areas (P < 0.05). Microbial carbon, AN and AP; MBN, SOC, and TN; and the number of bacteria and AK were significantly correlated in the damaged areas (P < 0.05). Fungi abundance was significantly correlated with AP content in the undamaged areas (P < 0.05). A typical correlation analysis showed that soil AK and TN contents were positively correlated with bacterial abundance, and AK had a certain promoting effect on fungi abundance. Therefore, soil fertility must be improved in destroyed areas after an earthquake and soil microbial abundance must be increased to improve soil health and promote ecological restoration.

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更新日期/Last Update: 2019-10-25