Effect of Different Land Uses on Soil Microbial Biomass Carbon,Nitrogen and Phosphorus in Three Vegetation Zones on Loess Hilly Area

JIANG Yue-li; ZHAO Tong; YAN Hao; HUANG Yi-mei; AN Shao-shan

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Effect of Different Land Uses on Soil Microbial Biomass Carbon,Nitrogen and Phosphorus in Three Vegetation Zones on Loess Hilly Area

- Effect of Different Land Uses on Soil Microbial Biomass Carbon,Nitrogen and Phosphorus in Three Vegetation Zones on Loess Hilly Area
- Bulletin of Soiland Water Conservation Vol. 32, Issue 6, Pages: 62-68(2013)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院农业部西北植物营养与农业环境重点实验室陕西杨陵,712100
  2. 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室陕西杨陵,712100
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- Published：2013
- 稿件说明：
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JIANG Yue-li, ZHAO Tong, YAN Hao, et al. Effect of Different Land Uses on Soil Microbial Biomass Carbon,Nitrogen and Phosphorus in Three Vegetation Zones on Loess Hilly Area[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 62-68.
DOI：

JIANG Yue-li, ZHAO Tong, YAN Hao, et al. Effect of Different Land Uses on Soil Microbial Biomass Carbon,Nitrogen and Phosphorus in Three Vegetation Zones on Loess Hilly Area[J]. Bulletin of Soiland Water Conservation, 2013, 32(6): 62-68. DOI：

摘要

为探讨植被区与土地利用方式对土壤微生物量的影响

在陕西省延河流域森林区、森林草原区和草原区采集5种土地利用方式下的土壤剖面样品(0-10cm

10-30cm)

并对其微生物量碳(SMBC)、微生物量氮(SMBN)和微生物量磷(SMBP)及土壤理化性质进行了分析。结果表明

微生物量磷的含量在3个植被区中均是在农地、撂荒地中相对较高

微生物量碳、氮在森林区表现为:乔木林地>农地在森林草原区表现为:灌木林地>天然草地>乔木林地>农地>撂荒地在草原区表现为:天然草地>乔木林地>灌木林地>农地>撂荒地。相同土地利用方式下

土壤养分和微生物量在森林区最高

森林草原区次之

草原区最低。相关分析表明

微生物量碳、氮、磷、代谢熵、微生物量碳氮比与土壤养分相关性极为密切。因此

土壤微生物量能够作为评价土壤质量的生物学指标。不同植被区不同土地利用方式对土壤质量的改善作用不同

林地和天然草地作用效果好

对土壤微生物量的提高有明显的促进作用。

Abstract

In order to explore the effect of land use changes on soil microbial biomass

five different kinds of land use sites were selected from forest zone

forest steppe zone and steppe zone separately on the loess hilly area of Yanhe valley in Shaanxi Province. Soil microbial biomass carbon(SMBC)

microbial biomass nitrogen

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