| 不同树龄苹果园土壤微生物生态特征研究 |
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| 引用本文： | 李智卫,王超,陈伟,束怀瑞.不同树龄苹果园土壤微生物生态特征研究[J].土壤通报,2011(2). |
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| 作者姓名： | 李智卫 王超 陈伟 束怀瑞 |
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| 作者单位： | 山东农业大学食品科学与工程学院;山东农业大学园艺科学与工程学院; |
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| 基金项目： | 科技支撑计划项目(2008BAD92B08); 山东农业大学食品科学与工程学院校博士基金和博士后基金资助 |
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| 摘 要： | 为了评价苹果园种植年限对土壤微生物和土壤肥力的影响,选择不同种植年限的果园,利用平板培养和脂肪酸甲酯(FAME)图谱法研究不同树龄苹果园土壤微生物生态特征变化。结果表明,壮龄果园的土壤微生物活性最高,是幼龄果园的1.23倍,老龄果园的1.37倍;幼龄和壮龄果园微生物生物量差异不显著,但均远大于老龄果园,约为老龄果园的3倍;随着树龄增大,细菌/真菌的比例下降,放线菌的含量也随树龄增大而降低;土壤微生物的多样性随树龄增大先增高后降低,以壮龄果园的微生物多样性为最好。果树的长期种植引起了土壤理化性质及土壤微生物数量、活性、多样性及种群结构的改变。通过研究不同树龄苹果园的土壤微生物生态特征,以期能为根据不同树龄果园土壤状况进行合理管理和解决重茬障碍提供一定的依据。
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| 关 键 词： | 土壤微生物 根际微生物 根系分泌物 脂肪酸甲酯(FAME) |
Biological Characteristics of Soil Microorganisms in Apple Orchards with Different Ages |
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| LI Zhi-wei ,WANG Chao ,CHEN Wei ,SHU Huai-rui.Biological Characteristics of Soil Microorganisms in Apple Orchards with Different Ages[J].Chinese Journal of Soil Science,2011(2). |
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| Authors: | LI Zhi-wei WANG Chao CHEN Wei SHU Huai-rui |
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| Institution: | LI Zhi-wei 1,WANG Chao 2,CHEN Wei 1,SHU Huai-rui 2(1.College of Food Science and Engineering,Shandong Agricultural University,Shandong Tai,an 271018,China,2.College of Horticulture and Engineering,China) |
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| Abstract: | To evaluate the impact of planting term on soil microorganisms and soil fertility in apple orchards,apple orchards with different planting terms were selected to investigate the changes in biological characteristics of soil microorganisms using dilution plating and FAME profiles.The result revealed that the microbial activity in middle-aged orchard was 1.23 times higher than that in the young orchard and 1.37 times higher than that in the aged orchard.The microbial biomass of young and middle-aged orchards ... |
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| Keywords: | Soil microorganisms Rhizosphere microorganisms Root exudates Fatty acid methyl ester(FAME) |
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