The influence of different types of urban land use on soil microbial biomass and functional diversity in Beijing, China
The influence of different types of urban land use on soil microbial biomass and functional diversity in Beijing, China
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北京市不同类型城市土地利用对土壤微生物生物量及功能多样性的影响
DOI：
10.1111/sum.12034
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发表时间：
2013-06
影响因子：
3.8
通讯作者：
Yu Tao
中科院分区：
文献类型：
--
作者：
Dan Zhao;Feng Li;Qingrui Yang;Yingshi Song;Yu Tao
城市生态系统中的土壤微生物受到土地利用变化引起的各种非生物和生物因素的影响。然而，不同类型的土地利用对城市地区土壤微生物特性和土壤质量的影响在很大程度上仍然未知。通过比较北京市天然林、公园、农业、街道绿色和行道树等5种土地用途：对土壤微生物生物量和微生物功能多样性的影响。我们发现，在城市环境中，土壤性质随土地利用而变化。与天然林相比，其他4种城市土地利用方式下土壤养分均明显亏损，Cu、Zn、Pb、Cd积累明显。重要的是，在这四种类型的土地利用下，微生物生物量较少，但它具有更大的功能多样性，特别是在路边树土壤中。微生物特性与有机质、全氮、全磷等理化指标之间存在显著相关性（P <0. 05），表明营养物质缺乏是导致微生物生物量下降的主要原因。此外，较高的C/N比、Ni含量和有机质库以及较高的pH值有助于提高城市土壤微生物功能多样性。不同土地利用方式通过影响土壤理化性质，特别是养分有效性和重金属含量，间接影响土壤微生物生物量和微生物群落功能多样性。
Soil microbes in urban ecosystems are affected by a variety of abiotic and biotic factors resulting from changes in land use. However, the influence of different types of land use on soil microbial properties and soil quality in urban areas remains largely unknown. Here, by comparing five types of land use: natural forest, park, agriculture, street green and roadside trees, we examined the effects of different land uses on soil microbial biomass and microbial functional diversity in Beijing, China. We found that soil properties varied with land uses in urban environments. Compared to natural forest, soil nutrients under the other four types of urban land use were markedly depleted, and accumulation of Cu, Zn, Pb and Cd was apparent. Importantly, under these four types of land use, there was less microbial biomass, but it had greater functional diversity, particularly in the roadside‐tree soils. Furthermore, there were significant correlations between the microbial characteristics and physicochemical properties, such as organic matter, total nitrogen and total phosphorus (P < 0.05), suggesting that lack of nutrients was the major reason for the decrease in microbial biomass. In addition, the larger C/N ratio, Ni concentration and pool of organic matter together with a higher pH contributed to the increase in microbial functional diversity in urban soils. We concluded that different land uses have indirect effects on soil microbial biomass and microbial community functional diversity through their influence on soil physicochemical properties, especially nutrient availability and heavy metal content.
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中国北京不同土地利用类型城市土壤中的汞
影响因子：
8.9
作者：
Chen, Xi;Xia, Xinghui;Guo, Xuejun
通讯作者：
Guo, Xuejun
科尔沁沙地植树樟子松后土地覆盖变化对土壤化学和生物性质的影响
影响因子：
4.9
作者：
Hu, Y. L.;Zeng, D. H.;Chang, S. X.;Fan, Z. P.
通讯作者：
Fan, Z. P.
DOI：
--
发表时间：
2004
期刊：
Huan jing ke xue= Huanjing kexue
影响因子：
--
作者：
Tongbin Chen;Yuan-ming Zheng;Huang Chen;G. Zheng
通讯作者：
Tongbin Chen;Yuan-ming Zheng;Huang Chen;G. Zheng
影响因子：
9.7
作者：
Weixing Zhu;M. Carreiro
通讯作者：
Weixing Zhu;M. Carreiro
影响因子：
4.1
作者：
Anderson, Jennifer A. H.;Hooper, Michael J.;Cox, Stephen B.
通讯作者：
Cox, Stephen B.