WANG Xue-ting,WU Yun-na,WANG Yang,et al.The Relationship Between Soil Organic Carbon and Nitrogen Distribution and Community Biomass in the Process of Grassland Degradation[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(09):104-110.
草原退化过程中土壤碳氮分布与群落生物量的关系
- Title:
- The Relationship Between Soil Organic Carbon and Nitrogen Distribution and Community Biomass in the Process of Grassland Degradation
- 文章编号:
- 1002-2767（2014）09-0104-07
- 分类号:
- S812.8
- 文献标志码:
- A
- 摘要:
- 为了有效开发利用草原、维护草原生态系统良性循环，以内蒙古呼伦贝尔克鲁伦流域的克氏针茅(Stipa krylovii)典型草原为研究对象，通过设置不同放牧强度的天然草原试验样地，采用野外实地调查与室内分析法，研究不同放牧强度下土壤碳-氮空间分布格局以及其对植被生产力的影响。结果表明:不同放牧梯度上植物地上生物量变化趋势为:轻牧>中牧>重牧；不同放牧梯度上的土壤有机质碳含量有显著差异性，变化表现为：轻牧>重牧>中牧；不同放牧梯度上的土壤氮含量有显著差异性，且轻牧>重牧、轻牧>中牧，中牧、重牧变化关系不显著；不同放牧梯度上，土壤C/N值与植物生物量均保持一种相对稳定的关系。
- Abstract:
- For effective development and utilization of grassland，maintenance of grassland ecosystem virtuous circle，taking the Hulunbeir Kerulen’s esparto(Stipa krylovii)typical grassland in Inner Mongolia as research object,setting up different grazing gradients of natural grassland test sample plot and using the methods of field investigation and indoor analysis,different grazing intensity of soil carbon -nitrogen space step pattern and its influence on vegetation productivity were studied.The results showed that the plant biomass changed with the trend of lightly grazed>moderately grazed>heavily grazed in different grazing gradients;Soil organic carbon content had obvious difference:lightly grazed>heavily grazed>moderately grazed;Soil nitrogen content had obvious differences between various samples in different grazing gradients:lightly grazed>heavily grazed and lightly grazed>moderately grazed,the relationship between moderately grazed and heavily grazed was not obvious;soil C/N value and plant biomass all maintained a relatively stable relation in different grazing gradients.
参考文献/References:
[1]傅华,陈亚明,周志宇，等.阿拉善荒漠草地恢复初期植被与土壤环境的变化[J].中国沙漠，2003,23(6):661-664.
[2]朱震达,程国栋.中国沙漠化防治[M].北京:科学出版社,1994:39-47.
[3]单贵莲.内蒙古锡林郭勒典型草原恢复演替研究与健康评价[D].北京：中国科学院,2009.
[4]Gauthier G R.Effect of grazing by greater snow geese on the production of gram in oids at an arctic site[J].Journal of Ecology,1995,83:653-664.
[5]Heady Harold F.Concepts and principles underlying grazing system[J].Developing strategies for range land management,1997,34:885-901.
[6]内蒙古农牧学院.草原管理学[M].2版.北京:农业出版社，1999:1-247.
[7]闫瑞瑞,卫智军,辛晓平，等.放牧制度对荒漠草原可萌发土壤种子库的影响[J].中国沙漠,2011,31(3):703-708. [8]刘忠宽,汪诗平,韩建国,等.内蒙古草原放牧恢复过程地衣生物量分布及其影响因素的研究[J].应用生态学报,2004,15(7):1294-1296.
[9]Reeder J D,Schuman G E.Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands[J].Environmental Pollution,2002,116:457-520.
[10]李春莉.放牧对短花针茅草原及糙羊茅草原植被和土壤影响的研究[D].呼和浩特：内蒙古农业大学，2008. [11]Haynes R J,Williams P H.Nutrient cycling and soil fertility in the grazed pasture ecosystem [J].Adv.Agron,1993,49:119-199.
[12]陈涛.呼伦贝尔退化羊草草甸物种多样性及土壤理化性质的研究[J].兰州：甘肃农业大学,2008.
[13]易湘生,李国胜,尹衍雨，等.黄河源区草地退化对土壤持水性影响的初步研究[J].自然资源学报,2012，27（10）：1708-1720.
[14]李凌浩.土地利用变化对草原生态系统土壤有机质贮量的影响[J].植物生态学报,1998,22(6):545-551.
[15]刘超,王洋,王楠，等.陆地生态系统植被氮磷化学计量研究进展[J].植物生态学报，2012,36(11):1205-1216
[16]张伟华,关世英,李跃进.不同放牧强度对草原土壤水分、养分及其地上生物量的影响[J].干旱区资源和环境,2000,14(4):61-64.
相似文献/References:
[1]陈亿兵,金焕贵,刘颖.白僵菌油悬浮剂防治草原蝗虫药效评价[J].黑龙江农业科学,2012,(04):80.
CHEN Yi-bing,JIN Huan-gui,LIU Ying.Pesticide Effect Evaluation of Beauveria Bassiana SC on Grassland Locusts[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(09):80.
[2]潘磊,张淑艳.贡格尔草原不同退化梯度土壤理化性质分析[J].黑龙江农业科学,2013,(06):18.
PANLei,ZHANGShu-yan.SoilPhysicochemicalCharacteristicsAnalysisunder DifferentDegreesofDegradationGrasslandinGongge’er[J].HEILONGJIANG AGRICULTURAL SCIENCES,2013,(09):18.
[3]张冬梅.草原遥感图像常规解译方法及存在问题[J].黑龙江农业科学,2010,(09):166.
ZHANG Dong-mei.Conventional Method and Problems of Remote Sensing Imagery Interpretation on Grassland[J].HEILONGJIANG AGRICULTURAL SCIENCES,2010,(09):166.
备注/Memo
收稿日期：2014-04-03
基金项目：国家级大学生创新创业训练计划资助项目(G2012006)；国家自然科学基金资助项目(31170402)；国家973资助项目(2009CB421308)；中央高校基本科研业务费专项资助项目(DC120101141)
第一作者简介：王雪婷(1992-)，女，内蒙古自治区鄂尔多斯市人，学士，从事环境工程研究。
通讯作者：乌云娜(1968-)，女，教授，博士，从事恢复生态学研究。E-mail:wuyunna@dlnu.edu.cn。