家畜排泄物归还对天然灌丛草地土壤-植被影响的研究进展  

Advances in Livestock Dung Decomposition and Its Effects to Soil-vegetation Distributing Pattern on Natural Shrub-Grassland

作　　者：王兴[1] 宋乃平[1,2] 杨新国[1] 杨明秀[1] 肖绪培[2] 

机构地区：[1]宁夏大学西北土地退化与生态恢复国家重点实验室培育基地,宁夏银川750021 [2]宁夏大学资源环境学院,宁夏银川750021

出　　处：《贵州农业科学》2013年第8期127-131,共5页Guizhou Agricultural Sciences

基　　金：国家973计划前期研究专项"荒漠草原农牧系统稳定性与维持机理研究"(2012CB723206);国家科技支撑计划课题"荒漠草原区农牧复合生态系统构建与可持续利用技术集成试验与示范"(2011BAC07B03)

摘　　要：家畜粪便归还是影响草地生态系统的主要途径之一。为退化草地的恢复措施提供参考,从家畜粪便归还分解过程、归还的多尺度格局、归还对土壤氮素的影响和土壤-植被分布格局对家畜归还响应4个方面进行了阐述。最后提出了今后应从研究区域、研究尺度上探究家畜排泄物对植被地下生物量的响应,同位素在家畜粪便-土壤-植物系统中含量的差异和室内模拟,使研究结果进一步达到量化程度。Livestock dung decomposition is one ecosystem. In this paper, the process of livestock dung decomposition, the effects of dung deposition on the vegetation distributing pattern for dung deposition were of the important ways which affects grassland decomposition, the pattern of multi-scale on dung soil nitrogen content and the response of soilreviewed to provide a theoretical basis for further studying on the recovery of deteriorated grassland. At last it was suggested to explore the response of livestock dung decomposition to vegetation underground biomass from aspects of survey region and scale. Isotope content difference in livestock dung-soil-plant system and laboratory simulation reached in quantization degree of the research results.

关 键 词：放牧草地 家畜粪便归还 尺度格局 土壤 植物 

分 类 号：S154.1[农业科学—土壤学]