干旱区生态环境知识资源中心(Arid): 农牧交错带不同植被群落对土壤微生物量碳氮磷的影响

Arid

	农牧交错带不同植被群落对土壤微生物量碳氮磷的影响
其他题名	Effects of different plant communities on soil microbial biomass carbon, nitrogen and phosphorus in the agro-pastoral transitional zone of northern Shaanxi Province
	蒲洁 1; 齐雁冰 2; 王茵茵 1; 楚万林 1; 杨凤群 1
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2015
卷号	33 期号:4 页码:279-285
中文摘要	为了解荒漠化土地植被恢复对土壤微生物量的影响,以地处毛乌素沙地南缘的榆林市沙生植物园植被恢复30年的乔木、灌木和草地3种植被群落下土壤为研究对象,分析了植被恢复对土壤微生物量碳、氮、磷含量及比值的影响及其与土壤理化性质的相关性。结果表明,农牧交错带荒漠化土地植被恢复可以明显提高表层土壤微生物碳、氮、磷的含量。土壤微生物量碳以灌木林地为最高,含量为288.35 mg·kg~(-1),显著高于草地和乔木,分别是乔木林地和草地的3.99和2.10倍;土壤微生物磷在三种植被群落间差异不明显;三种植被群落下土壤微生物碳氮比的高低为乔木林地>草地>灌木林地,土壤微生物碳磷比表现为草地略高于乔木林地和灌木林地。相关性分析结果显示微生物量碳、氮、磷与土壤理化性质相关性极为密切,其中与土壤养分各指标大多呈现极显著相关,与土壤容重多为极显著负相关。说明土壤微生物量可以作为评价土壤质量的生物学指标。
英文摘要	To investigate the effects of vegetation restoration of the desertification land on microbial contents in the soil,soils underneath three different plant communities including arbor,shrub and grassland restored for 30 years in the south of maowusu sandy land of Yulin psammophyte garden were studied. The resulting effects of restoration on microbial biomass C,N,P,the relationship between them and the soil physicochemical properties were further analyzed. The results showed that vegetation restoration of the desertification land in agro-pastoral transitional zone had a significant promoting impact on microbial biomass C,N,P in the surface soil. The soil microbial biomass C of shrub was 288.35 mg·kg~(-1),which was the highest. The soil microbial biomass N of shrub was 3.99 and 2.10 times higher than that of arbor and grassland,respectively. Difference of the soil microbial biomass P among these three plant communities was not apparent. The order of soil microbial biomass C/N ratios was as arbor > grassland > shrub. The ratio of soil microbial biomass C/P of grassland was slightly higher than that of arbor and shrub. The correlation analysis results showed that the soil microbial biomass C,N,P had close correlations with soil physical and chemical properties. The soil nutrient mostly showed extremely significant correlation,and the soil bulk density mostly had extremely significant negative correlation, which meant that the soil microbial biomass could be used as a biological index for soil quality evaluation.
中文关键词	植被群落 ; 微生物量碳氮磷 ; 植被恢复 ; 农牧交错带
英文关键词	plant community soil microbial biomass C,N,P vegetation restoration agro-pastoral transitional zone
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5482321
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232619
作者单位	1.西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国; 2.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, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	蒲洁,齐雁冰,王茵茵,等. 农牧交错带不同植被群落对土壤微生物量碳氮磷的影响[J]. 西北农林科技大学,2015,33(4):279-285.
APA	蒲洁,齐雁冰,王茵茵,楚万林,&杨凤群.(2015).农牧交错带不同植被群落对土壤微生物量碳氮磷的影响.干旱地区农业研究,33(4),279-285.
MLA	蒲洁,et al."农牧交错带不同植被群落对土壤微生物量碳氮磷的影响".干旱地区农业研究 33.4(2015):279-285.