不同施氮水平下AMF对工业废弃地植物生产力和多样性的影响
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摘要
[目的]探究不同施氮水平下丛枝菌根真菌(AMF)对工业废弃地植物生产力和多样性的影响。[方法]设计了水处理和灭菌及3个不同施氮水平的双因素六处理野外试验,分别测定植物群落的生产力及物种多样性。[结果]加入灭菌剂苯菌灵后,生产力及物种多样性均出现明显的下降;而随着施氮水平的增加,植物生产力及物种多样性均出现升高的趋势,并且在高氮水平下水处理与苯菌灵处理之间的差异达显著水平。[结论]苯菌灵处理对植物生产力有显著负效应;在一定氮素范围内,氮素含量有植物生产力和多样性存在正相关关系。
[Objective]In order to explore the effects of arbuscular mycorrhizal fungi(AMF)on plant productivity and diversity in industrial wasteland under different nitrogen application levels.[Method]The field experiments of water treatment and sterilization and three two-factors six-treatments with different nitrogen application levels were designed to determine mycorrhizal infection rate,species density,coverage,productivity and species diversity of plant communities. [Result]The productivity and species diversity of plant communities decreased significantly with the addition of benzoxazole,while the productivity and species diversity of plant communities increased with the increase of nitrogen application level,and the difference between water treatment and benzoxazole treatment was significant at high nitrogen level.[Conclusion]Benomyl treatment had a significant negative effect on plant productivity,and there was a positive correlation between plant productivity and diversity in a certain range of nitrogen.
[Objective]In order to explore the effects of arbuscular mycorrhizal fungi(AMF)on plant productivity and diversity in industrial wasteland under different nitrogen application levels.[Method]The field experiments of water treatment and sterilization and three two-factors six-treatments with different nitrogen application levels were designed to determine mycorrhizal infection rate,species density,coverage,productivity and species diversity of plant communities. [Result]The productivity and species diversity of plant communities decreased significantly with the addition of benzoxazole,while the productivity and species diversity of plant communities increased with the increase of nitrogen application level,and the difference between water treatment and benzoxazole treatment was significant at high nitrogen level.[Conclusion]Benomyl treatment had a significant negative effect on plant productivity,and there was a positive correlation between plant productivity and diversity in a certain range of nitrogen.
引文
[1]王秀明.工业废弃地的景观改造与再利用研究[D].北京:北京林业大学,2010.
[2]伍海兵.城市绿地土壤物理性质特征及其改良研究[D].南京:南京农业大学,2013.
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[14]甄莉娜,王润梅,杨俊霞,等.丛枝菌根真菌与氮肥对羊草生长的影响[J].中国草地学报,2018,40,223(3):51-56.
[15]康前.甘洛铅锌矿区废弃矿地丛枝菌根真菌多样性研究[D].成都:四川师范大学,2018.
[16] JOYCE C. The Sensitivity of a Species-Rich Flood-Meadow Plant Community to Fertilizer Nitrogen:The Lu觩nice River Floodplain,Czech Republic[J]. Plant Ecology,2001,155(1):47-60.
[17] CHEN,X.,CUI,Z.,FAN,M.,et al. Producing more grain with lower environmental costs[J]. Nature,2014,514(7523):486-489.
[18]李少朋,毕银丽,孔维平.丛枝菌根真菌在矿区生态环境修复中应用及其作用效果[J].环境科学,2013,34(11):4455-4459.
[19]卢慧,张婷婷.矿区废弃地生态恢复理论研究[C].全国矿区环境综合治理与灾害防治技术研讨会[A].2011.
[2]伍海兵.城市绿地土壤物理性质特征及其改良研究[D].南京:南京农业大学,2013.
[3]赵旭鹏.宝日希勒露天矿土壤微生物群落多样性及变化[D].呼和浩特:内蒙古大学,2018.
[4]李晓林,冯固,等.从枝菌根生态生理[M].北京:华文出版社,2001.
[5] HIRUMA K,GERLACH N,SACRISTAN S,et al. Root Endophyte Colletotrichum tofieldiae Confers Plant Fitness Benefits that Are Phosphate Status Dependent[J]. Cell,2016,165(2):464-474.
[6] DOSTALEK T,PANKOVAH,MUNZBERGOVAZ,et al. The effect of AMF suppression on plant species composition in a nutrientpoor dry grassland[J]. Plos One,2013,8(11):e80535.
[7] MARCELGA V D,SEBASTIAAN V,SUSANNEJ D. Mycorrhizal fungi reduce the negative effects of nitrogen enrichment on plant community structure in dune grassland[J]. Global Change Biology,2010,14(11):2626-2635.
[8]周薇,王兵,李钢铁.大气氮沉降对森林生态系统影响的研究进展[J].中央民族大学学报(自然科学版),2010,19(1):34-40.
[9]孙元,邵红涛,薛春梅,等.氮沉降对我国森林生态系统生物多样性的影响研究进展[J].黑龙江大学工程学报,2013,4(2):33-37.
[10] O’CONNOR P. J.,S. E.SMITH,F. A. SMITH. Arbuscular mycorrhizas influence plant and diversity and community structure in semiarid herbland[J]. New Phytologist,2002,154:209-218.
[11]李振基.生态学[M].北京:科学出版社,2007:171.
[12]龙显莉.氮施肥条件下丛枝菌根真菌对植物种间相互作用影响的研究[D].兰州:兰州大学,2017.
[13] SCHMIDT S,STEWART G R.δ15N values of tropical savanna and monsoon forest species reflect root specialisations and soil nitrogen status[J]. Oecologia,2003,134(4):569-577.
[14]甄莉娜,王润梅,杨俊霞,等.丛枝菌根真菌与氮肥对羊草生长的影响[J].中国草地学报,2018,40,223(3):51-56.
[15]康前.甘洛铅锌矿区废弃矿地丛枝菌根真菌多样性研究[D].成都:四川师范大学,2018.
[16] JOYCE C. The Sensitivity of a Species-Rich Flood-Meadow Plant Community to Fertilizer Nitrogen:The Lu觩nice River Floodplain,Czech Republic[J]. Plant Ecology,2001,155(1):47-60.
[17] CHEN,X.,CUI,Z.,FAN,M.,et al. Producing more grain with lower environmental costs[J]. Nature,2014,514(7523):486-489.
[18]李少朋,毕银丽,孔维平.丛枝菌根真菌在矿区生态环境修复中应用及其作用效果[J].环境科学,2013,34(11):4455-4459.
[19]卢慧,张婷婷.矿区废弃地生态恢复理论研究[C].全国矿区环境综合治理与灾害防治技术研讨会[A].2011.