西藏中部地区退化土壤秸秆还田的微生物变化特征及其影响

摘要/Abstract

摘要： 于西藏中部地区秸秆还田条件下,研究了土壤微生物区系及其主要生理类群的变化特征和土壤微生物对土壤肥力的影响及其相互关系.结果表明,不同秸秆还田方式,特别是秸秆覆盖和高茬方式较高的土壤水分、土壤温度及其耦合效应,为土壤微生物繁殖与活动提供了重要的土壤环境保障,有助于以细菌为主导的各类土壤微生物的相对均衡生长,对加速土壤有机残体分解,大幅度提高土壤有机质含量,促进土壤团粒结构形成和土壤养分转化均具重要作用,表明在西藏中部生态条件下,退化土壤具有在相对较短时间内实现结构重建与肥力恢复的可能性及其潜力.

关键词: 秸秆还田, 微生物特征, 土壤肥力, 西藏

Abstract: This paper studied the dynamics of microbial communities in degraded soils of central Tibet under straw amendment and its effect on soil fertility.The results showed that straw amendment,and soil covering with spring highland barley (Hordeum vulgare var.nudum) straw in particular,could supply a beneficial soil environment for the relatively balanced growth of soil microbes,e.g,reduced water evaporation,appropriate temperature,and increased content of organic matter and nutrients.All the results demonstrated the possibility of straw amendment in recovering soil fertility and in reconstructing of soil structure in a relatively short period.

Key words: Straw returning, Microbial characteristics, Soil fertility, Tibet

中图分类号:

蔡晓布, 钱成, 张元, 普琼. 西藏中部地区退化土壤秸秆还田的微生物变化特征及其影响[J]. 应用生态学报, 2004, (3): 463-468.

CAI Xiaobu, QIAN Cheng, ZHANG Yuan, PU Qiong. Microbial characteristics of straw-amended degraded soils in central Tibet and its effect on soil fertility[J]. Chinese Journal of Applied Ecology, 2004, (3): 463-468.

参考文献

[1] Cai X-B(蔡晓布).2002.Effect of different methods of application on degenerated soil in middle part of Tibet J Soil Water Conseru (水土保持学报),16(2):12～15(in Chinese)
[2] Cai X-M(蔡晓明).2000.Ecosystem Ecdogy Beijing:Science Press.230～231(in Chinese)
[3] Chen W-X(陈文新).1990.Soil and Enviromental Microecology.Beijing:Beijing Agricultural University Press.19～35,73～194(in Chinese)
[4] Hu Z-Z(胡自治).2000.Prataclture and Environment Deployment in Qinghi-Tibet Plateau.Beijing:China Academic of Tibet Ptess.21～22(in Chinese)
[5] Huang C-Y(黄昌勇).2000.Scio Science.Beijing:China Agricultural Press.55～57(in Chinese)
[6] Li G-T(李贵桐),Zhao Z-J(赵紫娟),HuangY-F(黄元仿),et al.2002.Effect of straw returning on the nitrogen transformation.Plant Nutr Fertil Sci(植物营养与肥料学报),8(2):162～167(in Chinese)
[7] Long J(龙健),Hnang C-Y(黄昌勇),Teng Y(腾应),et al.2002.Characteristics of soil microbes of reclaimed minesoil in red soil area,Southern China.J Soil Water Conserv(水土保持学报),16(2):126～128(in Chinese)
[8] Lu R-K(鲁如坤).1998.Principle and Applied Fertilizer of SoilPlantNutrition.Beijing:Chemical Industry Press.120～123,153～165(in Chinese)
[9] Shen Q-R(沈其荣).2000.Rdes of organic in the development of sustainable agriculture.In:Feng F(冯锋),Zheng F-S(张福锁),Yang X-Q(杨新泉),eds.Research Progress and Prospectsin Plant Nutrition.Beijing:China Agricultural University Press 161～162(in Chinese)
[10] Sun B(孙波),ZhangT-L(张桃林),Zho Q-G(赵其国).1999.Fertility evolution of red soil derived from quaternary red clay in low-hilly region in middle subtropicsⅡ.Evolution of soil chemical and biological ertilities.Acta Pedol Sin(土壤学报),36(2):203～217(in Chnese)
[11] Tibet hnd Administrative Office(西藏自治区土地管理局).1994.Tibet Soil Resource.Beijing:Science Press.435～521,515～516(in Chinese)
[12] Xue Q-H(薛泉宏),Tan Z-Y(谭志远),Zhu M-E(朱铭莪),et al 1999.A study on the soil actionmycetes in Tibet.Acta Univ Agric Boreali-Occident(西北农业大学学报),27(1):28～32(in Chinese)
[13] Yu S(俞慎),Li Y(李勇),Wang J-H(王俊华),et al.1999.Study on the soil microbial biomass as a bio-indicator of soil quality inthe red earth ecosystem.Acta Pedol Sin(土壤学报),36(3):413～422(in Chinese)
[14] Zhang L(张磊),Xiao J-Y(肖剑英),Xie D-T(谢德体),et al.2002.Study on microbial characteristics in paddy soil under longterm no-tillage and ridge culture.J Soil Water Conserv(水土保持学报),16(2):111～114(in Chinese)
[15] Institute of Soil Science,Chinese Academy of Sciences(中国科学院南京土壤研究所).1978.Soil Physical and Chemical Amalysis.Shanghai:Shanghai Science and Technology Press.73(in Chinese)
[16] Zhou Y-M(周艺敏),Hirrosuke Ogura,Tetsushi Yoshida.2000.Macrorflora in vegetable sils in semi-arid region at Tianjin City.Plant Nutr Fertil Sci(植物营养与肥料学报),6(4):424～429(in Chinese)