Effect of Long-term Fertilization on Organic,Inorganic and Microbial Biomass Carbon in Irrigated Desert Soils

ZENG Jun; DONG Bo; Zhang Dong-wei; BAO Xing-guo; GUO Tian-wen

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Effect of Long-term Fertilization on Organic,Inorganic and Microbial Biomass Carbon in Irrigated Desert Soils

- Effect of Long-term Fertilization on Organic,Inorganic and Microbial Biomass Carbon in Irrigated Desert Soils
- Bulletin of Soiland Water Conservation Vol. 32, Issue 2, Pages: 35-38(2013)
- 作者机构：
  
  1. 甘肃省农业科学院旱地农业研究所,甘肃,兰州,730070
  2. 农业部西北作物抗旱栽培与耕作重点实验室,甘肃,兰州,730070
  3. 甘肃省旱作区水资源高效利用重点实验室,甘肃,兰州,730070
- 作者简介：
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- Published：2013
- 稿件说明：
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ZENG Jun, DONG Bo, Zhang Dong-wei, et al. Effect of Long-term Fertilization on Organic,Inorganic and Microbial Biomass Carbon in Irrigated Desert Soils[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 35-38.
DOI：

ZENG Jun, DONG Bo, Zhang Dong-wei, et al. Effect of Long-term Fertilization on Organic,Inorganic and Microbial Biomass Carbon in Irrigated Desert Soils[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 35-38. DOI：

摘要

利用武威市白云试验站18a长期定位试验资料

研究了不同施肥条件下

土壤有机碳、无机碳和微生物量碳在0-40cm土层的变化状况。结果表明

氮肥与有机肥长期配合施用和长期施用农肥可以在0-20cm土层增加土壤有机碳含量

减少土壤中的无机碳含量

增加土壤微生物量碳含量;单施秸秆可增加土壤有机碳

而对无机碳和微生物量碳影响无明显差异;长期施用氮肥对土壤的有机碳、无机碳和微生物量碳均无明显差异。土壤有机碳与土壤无机碳含量呈显著负相关关系

而与土壤微生物量碳呈显著正相关关系。

Abstract

Based on a 18-year-long experiment conducting at Baiyun experiment station in Wuwei City

theeffects of long-term fertilization on soil organic

inorganic and microbial biomass carbon in 0-20cm layer ofirrigated desert soil were analyzed.The results showed that long-term combined application of nitrogen andorganic fertilizer

as well as manure application led to increases of soil organic and microbial biomass carboncontents

while reduced soil inorganic carbon contents.Applying straw alone increased soil organic carbon

but had no significant impacts on inorganic and microbial biomass carbon levels.Long-term application of nitrogen fertilizer had no significant influence on soil organic

inorganic and microbial biomass carbon contents.All results revealed that soil organic carbon contents negatively correlated with inorganic carbon contents

and positively with soil microbial biomass carbon contents.

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Related Institution

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