|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
青海湖区紫花针茅草原封育导致的土壤养分时空变化特征
DOI: DOI: 10.3724/SP.J.1145.2012.00023, PP. 23-29
Keywords: 青海湖区,封育,土壤养分,紫花针茅草原,草地退化,土壤恢复,碳循环
Abstract:
封育导致的生态系统恢复会体现在土壤恢复.以不同封育年限的青海湖区紫花针茅草原为对象，研究封育导致的土壤养分时空变化特征.结果表明：同一样地速效氮、速效磷和速效钾都表现为表层含量最高，显著高于第ⅱ层，下面几层之间差异不显著；封育对速效养分含量影响不同，对速效钾含量影响不大，而速效磷含量大多显著提高，封育样地速效氮含量稍微高于对照样地.全量养分相比较，封育对土壤全钾和全磷含量影响不大，随土层加深全氮含量降低，封育导致土壤表层全氮含量升高（提高了19.9%）.有机质含量随土层加深而降低，长期封育导致土壤有机质含量增加.相关分析表明，速效钾和全钾含量之间相关不显著，速效磷和全磷、速效氮和全氮含量都表现出显著相关，有机质和全量养分之间只有全氮表现出了显著相关.封育后土壤ph值略有升高；随着土层加深，土壤容重升高，但土壤容重变化不大.封育使草原土壤养分含量增加，但是养分的增加是一个非常缓慢的过程，对草原的保护还需继续加强.图1表1参25
| [1] | 3weixh(魏兴琥),yangp(杨萍),lis(李森),chenhs(陈怀顺).effectsofovergrazingonvegetationdegradationofthekobresiapygmaeameadowanddeterminationofdegenerativeindexinthenaquprefectureoftibet.actapratacultsin(草业学报),2005,14(3):41~49
|
| [2] | 4yanghx(杨红善),changgz(常根柱),zhouxh(周学辉),luy(路远),nabte(那巴特尔).studyoncontentsofsoilnutrientsindifferentgrazingintensitiesonsubeialpinesteppes.soils,2011,43(2):174~178
|
| [3] | 5presseyrl,cabezam,wattsme,cowlingrm,wilsonka.conservationplanninginachangingworld.trendsecol&evol,2007,22(11):583~592
|
| [4] | 6dubeuxjcb,sollenbergerjle,mathewsbw,scholbergjm,santoshq.nutrientcyclinginwarm-climategrasslands.cropsci,47(3):915~928
|
| [5] | 8zhouzy,lifr,chensk,zhanghr,ligd.dynamicsofvegetationandsoilcarbonandnitrogenaccumulationover26yearsundercontrolledgrazinginadesertshrubland.plant&soil,2011,341(1~2):257~268
|
| [6] | 10gibsonr,hewitta,sparlingg.vegetationchangeandsoilqualityincentralotagotussockgrasslands.newzealandranglangj,2000,22(2):190~204
|
| [7] | 11wugl,liw,zhaolp.artificialmanagementimprovessoilmoisture,c,nandpinanalpinesandymeadowofwesternchina.pedosphere,2011,21(3):407~412
|
| [8] | 17zhougy(周国英),chengc(陈桂琛),hanyj(韩友吉),lijp(李锦萍),songwz(宋文珠).influencesofenclosureonachnatherumsplendenssteppescommunitycharacteristicsintheqinghailakearea.chinjgrassl(中国草地学报),2007,29(1):19~23
|
| [9] | 18chengc(陈桂琛),chenxq(陈孝全),gouxj(苟新京)edinchief.青海湖流域生态环境保护与修复.xining,china:qinghaipeoplepress(西宁:青海人民出版社),2008.1~2
|
| [10] | 19zhougy(周国英),chengc(陈桂琛),zhaoyl(赵以莲),wangsz(王顺忠),liw(李伟),pengm(彭敏).comparativeresearchontheinfluenceofchemicalfertilizerapplicationandenclosureonalpinesteppesintheqinghailakeareaⅰstructureandspeciesdiversityoftheplantcommunity.actapratacultsin(草业学报),2004,13(1):26~31
|
| [11] | 20chengc(陈桂琛),pengm(彭敏),zhoulh(周立华),zhaoj(赵京).relationshipbetweenecologicalenvironmentalchangeandhumanactivityinqinghailakeregion:apreliminarystudy.chinjecol(生态学杂志),1994,13(2):44~49
|
| [12] | 21sunb(孙波),shijp(施建平),yanglz(杨林章)edinchief.陆地生态系统土壤观测规范.beijing,china:chinaenvironmentalsciencepress(北京:中国环境科学出版社),2007
|
| [13] | 22chengjz(程建中),lixq(李心清),liuzl(刘钟龄),hul(胡璐),huangdk(黄代宽).spatialvariationofcandncontentsofplantcommunitiesinthesteppeofnorthchina:implicationfortheabnormalc/nratiointhesurfacesoil.geochimica(地球化学),2008,37(3):265~274
|
| [14] | 23hanww(韩文武).studyondegradationprogressandrestorationmechanismofplantcommunity:[masterdegreedissertation].lanzhou,china:lanzhouuniversity(兰州:兰州大学),2006
|
| [15] | 24wul,hen,wangy.storageanddynamicsofcarbonandnitrogeninsoilaftergrazingexclusioninleymuschinensisgrasslandsofnorthernchina.jenvironqual,2008,37(2):663~668
|
| [16] | 25caixb(蔡晓布),qianc(钱成),zhangyq(张永清).characterizationofsoilbiologicalpropertiesondegradedalpinegrasslands.chinjapplecol(应用生态学报),2007,18(8):1733~1738
|
| [17] | 27wangwy(王文颖),wangqj(王启基),wangg(王刚).effectsoflanddegradationandrehabilitationonsoilcarbonandnitrogencontentonalpinekobresiameadow.ecol&environ(生态环境),2006,15(2):362~366
|
| [18] | 29caogm(曹广民),wuq(吴琴),lid(李东),huqw(胡启武),liym(李月梅),wangx(王溪).effectsofnitrogensupplyanddemandstatusofsoilandherbagesystemonvegetationsuccessionandgrasslanddegradationinalpinemeadow.chinjecol(生态学杂志),2004,23(6):25~28
|
| [19] | 30wangct(王长庭),longrj(龙瑞军),wangql(王启兰),liuw(刘伟),jingzc(景增春),zhangl(张莉).communitysuccessionofdifferentlyagedartificialgrasslandsandtheirsoilnutrientchangesinthreeriverssourceregionsinqinghai,china.chinjappl&environbiol(应用与环境生物学报),2009,15(6):737~744
|
| [20] | 31xuzq(许中旗),minqw(闵庆文),wangys(王英舜),liwh(李文华),xuq(许晴).impactofhumandisturbanceonsoilnutrientcontentsoftypicalgrasslands.jsoil&waterconserv(水土保持学报),2006,20(5):38~42
|
| [21] | 32suj(苏静),zhaosw(赵世伟).influenceofvegetationrestorationondistributionofaggregateandorganiccarbonandnitrogeninloessplateau.ressoil&waterconserv(水土保持研究),2005,12(3):44~46
|
| [22] | 1huzz(胡自治).ecosystemservicesofrangeland/grassland:keyfactorsreducingfunctionandthematicmeaningsforcaringrangeland/grassland.grassl&turf(草原与草坪),2005,3:3~8
|
| [23] | 2lib(李博).therangelanddegradationinnorthchinaanditspreventivestrategy.chinagrisci(中国农业科学),1997,30(6):1~9
|
| [24] | 7evansrd,belnapj.long-termconsequencesofdisturbanceonnitrogendynamicsinanaridecosystem.ecosystem,1999,80(1):150~160
|
| [25] | 9dernerjd,schumange.carbonsequestrationandrangelands:asynthesisoflandmanagementandprecipitationeffects.jsoil&waterconserv,2007,62(2):77~85
|
| [26] | 12fuy(伏洋),zhanggs(张国胜),lifx(李凤霞),yangq(杨琼),yanld(颜亮东),liubk(刘宝康).managementapproachesofecologicalandenvironmentalrestorationintheregionsaroundqinghailake.pratacultsci(草业科学),2008,25(7):4~10
|
| [27] | 13lifx(李凤霞),fuy(伏洋),yangq(杨琼),yanld(颜亮东),xiaojs(肖建设).climatechangeanditsenvironmentaleffectsinthesurroundingareaofqinghailake.resoursci(资源科学),2008,30(3):348~353
|
| [28] | 14wangwy(王维岳).problemsofecologicenvironmentanditsprotectionintheqinghailakewatershed.bullsoil&waterconserv(水土保持通报),1996,16(6):59~64
|
| [29] | 15sunj(孙菁),pengm(彭敏),chengc(陈桂琛),liw(李伟),wangsz(王顺忠),zhougy(周国英).dynamicchangesofthebiomassofstipasteppearoundqinghailake.pratacultsci(草业科学),2004,21(7):1~5
|
| [30] | 16zhougy(周国英),chengc(陈桂琛),zhaoyl(赵以莲),wangsz(王顺忠),sunj(孙菁).comparativestudiesontheinfluenceofchemicalfertilizerapplicationandenclosureonalpinesteppesinqinghailakearea.pratacultsci(草业科学),2005,22(1):59~63
|
| [31] | 26wangyb(王一博),wanggx(王根绪),shenyp(沈永平),wangyl(王彦莉).degradationoftheeco-environmentalsysteminalpinemeadowonthetibetanplateau.jglaciol&geocryol(冰川冻土),2005,27(5):633~640
|
| [32] | 28ruiz-jaenmc,aidetm.restorationsuccess:howisitbeingmeasured?restorationecol,2005,13(3):569~577
|
| [33] | 33conantrt,paustiank,elliottet.grasslandmanagementandconversionintograssland:effectsonsoilcarbon.ecolappl,2001,11(2):343~355
|
| [34] | 34zhouhk(周华坤),zhoul(周立),zhaoxq(赵新全).researchontheecosystemstabilityofalpinemeadowintibetanplateau.chinscibull(科学通报),2006,51(1):63~69
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
