Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Ecologica Sinica》 2012-01
Add to Favorite Get Latest Update

Spatial heterogeneity of soil microbial biomass in Mulun National Nature Reserve in Karst area

LIU Lu1,2,3,SONG Tongqing1,2,PENG Wanxia1,2,WANG Kelin1,2,DU Hu1,2,3,LU Shiyang1,2,3, ZENG Fuping1,2, 1 Key Laboratory of Agro-ecological Processes in Subtropical Region,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China 2 Huanjiang Observation and Research Station of Karst Ecosystem,Chinese Academy of Sciences,Huanjiang 547200,Guangxi,China 3 Graduate University of Chinese Academy of Sciences,Beijing 100049  
Soil microbe is the most important decomposer in forest ecosystems,and plays a key role in material recycling and energy conversion.In this study,the spatial patterns of soil microbial biomass in typical Karst peak-cluster depressions were analyzed through both geo-statistical and traditional statistical methods.The results showed that large variation existed in soil microbial biomass.Soil microbial biomass carbon(Cmic),soil microbial biomass nitrogen(Nmic),and soil microbial biomass phosphorus(Pmic) varied from 44.29—5209.63,20.91—1894.37,0.34—77.06 mg/kg,respectively.The Cmic was significantly positively correlated with Nmic.The value of Cmic/Nmic is 4.78,which obviously lower than that in other ecosystems.Semivariance analysis revealed that the Gaussian model fitted best for Cmic and Nmic,the Spherical model fitted best for Pmic,and the Exponential model fitted best for Cmic/Nmic.The SH%(C/(C+C0)×100%) of soil microbial biomass exhibited moderate spatial autocorrelation,ranging from 25% to 75%.Therefore,the spatial patterns were affected by both random and structure factors.The autocorrelation distance of Cmic and Nmic were about 50 m.Moran′s I decreased gradually with the increase of separation distance,and showed a statistically negative correlation.Moran′s I of Pmic increased when the separation distance was larger than 70 m,which indicated positive correlation.Moran′s I of Cmic/Nmic was lower than others,ranging from-0.2 to 0.2 m.The spatial distribution of Cmic and Nmic were similar,and showed a convex-type distribution in which the contents were high in the middle and low on the two sides.In contrast,The Pmic was distributed with a pattern of high in the upper slope and depressions.The content of Cmic/Nmic showed a concave-type distribution with many small patches.We conclude that soil microbes exist in a certain spatial pattern,and that its contents sharply reduced after disturbing.As a result,the protection of Karst primary ecosystems against human disturbing should be strengthened.
【Fund】: 国家科技支撑计划(2009BADC6B008 2010BAE00739);; 中国科学院战略性先导科技专项(XDA05050205);; 国家自然科学基金项目(31000224 31070425 30970508 U1033004);; 中国科学院“西部之光”人才培养计划
【CateGory Index】: S154.3
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 10 Hits
1 PENG Yan1,2,LEE Xin-qing1*,CHENG Jian-zhong1,2,XING Ying1,2 and YAN Hui1,2 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Influence of vegetation types and seasonal variation on soil microbial biomass and microbial respiration in Karst region of Guiyang,southwest China[J];Geochimica;2010-03
2 WANG Shao-kun1,2,ZHAO Xue-yong1,ZUO Xiao-an1,GUO Yi-rui1,LI Yu-qiang1,QU Hao1,2(1 Naiman Desertification Research Station,Cold and Arid Regions of Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,Gausu,China;2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China);Vertical distribution and seasonal dynamics of soil microbial number in sandy grassland of Horqin[J];Arid Land Geography;2009-04
3 DING Ling-ling1,3,Qi Biao1,SHANG Zhan-huan2,LONG Rui-jun2,ZHOU Qi-xing1 (1. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, CAS, Shenyang 110016, China; 2. Center for Tibetan Grassland and Yak Studies of Lanzhou University, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou 730020, China; 3. Graduate School of Chinese Academy of Science, Beijing 100039, China);The Characteristics of Soil Microorganism Quantity Under Different Alpine Grasslands in Eastern Qilian Mountain[J];Journal of Agro-Environment Science;2007-06
4 PENG Wan-Xia1,2,3,WANG Ke-Lin1,3,SONG Tong-Qing1,3,ZENG Fu-Ping1,3,WANG Jiu-Rong1,3 1 Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China 2 College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha 410128,China 3 Station of Karst Ecology in Huanjiang,Institute of Subtropical Agriculture,CAS,Huanjiang,547200,China;Controlling and restoration models of complex degradation of vulnerable Karst ecosystem[J];Acta Ecologica Sinica;2008-02
5 HE Xun-Yang1,2,WANG Ke-Lin1,,YU Yi-Zun1,2,ZHANG Wei1,CHEN Zhi-Hui1,2 1 Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China 2 Graduate School of Chinese Academy of Sciences,Beijing 100039,China;The responses of soil microbial taxonomic diversity on vegetation communities and seasons in karst area[J];Acta Ecologica Sinica;2009-04
6 WANG Qiang1,DAI Jiulan2,,FU Hecai1,SHEN Tianlin1,WU Daqian1,WANG Renqing 1,2, 1 College of Life Science,Shandong University,Ji'nan 250100,China2 Environment Research Institute,Shandong University,Ji'nan 250100,China;The application of spatial analysis methods to microbial ecology[J];Acta Ecologica Sinica;2010-02
7 LIU Shuang,WANG Chuankuan College of Forestry,Northeast Forestry University,Harbin 150040,China;Spatio-temporal patterns of soil microbial biomass carbon and nitrogen in five temperate forest ecosystems[J];Acta Ecologica Sinica;2010-12
8 HE Rong1,3,WANG Guo-bing1,WANG Jia-she2,XU Bo-feng3,WANG Ke-ji3,FANG Yan-hong2,SHI Zheng1,4,RUAN Hong-hua1(1Jiangsu Provincial Key Laboratory of Forestry Ecological Engineering,Faculty of Forest Resources and Environmental Science,Nanjing Forestry University,Nanjing 210037,China;2The National Natural Preserve of Wuyi Mountains in Fujian Province,Wuyishan 354315,Fujian,China;3General Station of Agriculture,Forestry,and Water Conservancy Enterprise,Jiangbei District,Ningbo 315020,Zhejiang,China;4Faculty of Agricultural,Life and Environmental Sciences,University of Alberta,Edmonton,Alberta T6G 2E3,Canada).;Seasonal variation and its main affecting factors of soil microbial biomass under different vegetations along an elevation gradient in Wuyi Mountains of China.[J];Chinese Journal of Ecology;2009-03
9 WEI Ya-wei1,2,3,SU Yi-rong1,3,CHEN Xiang-bi1,2,3,HE Xun-yang1,3(1.Key Laboratory for Agro-ecological Processes in Subtropical Region,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125;2.Graduate School of Chinese Academy of Science,Beijing 100039;3.Huanjiang Observation and Research Station for Karst Eco-systems,Huanjiang 547100);Effects of Human Disturbance on Profile Distribution of Soil Organic C,Total N,Total P and Microbial Biomass in Karst Region of Northwest Guangxi[J];Journal of Soil and Water Conservation;2010-03
10 HE Xun-yang1,2,WANG Ke-lin1,CHEN Zhi-hui1,YANG Gang1,3,CHEN Hong-song1,2 (1.Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China;2.Huanjiang Experimental Station of Karst Ecostem,Chinese Academy of Sciences,Huanjiang 547100,Guangxi,China;3.Graduate School of the Chinese Academic of Science,Beijing 100039,China;4.College of Biological Science and Technology,Hunan Agricultural University,Changsha 410128,China);Responses of Soil Microbial Characters to Farm Land-use Types in Peak-Cluster Depression of Karst Region[J];Chinese Journal of Soil Science;2008-03
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Guo-bing,RUAN Hong-hua,TANG Yan-fei,HE Rong(Key Laboratory of Forestry Ecological Engineering of Jiangsu Province,College of Forest Resources and the Environmental Science,Nanjing Forestry University,Nanjing 210037);A review on the dynamics of soil microbial biomass in forest ecosystems[J];Journal of Anhui Agricultural University;2009-01
2 Li xiangzhou; Chen Zuozhong(Institute of Botany, Chinese Academy of Sciences, Beijing 100093);Influences of Stocking Rates on C,N,P Contents in Plant-Soil System[J];ACTA AGRESTIA SINICA;1998-02
3 ZHANG Yun-wei~1,HAN Jian-guo~1,HAN Yong-wei~2,NIU Zhong-lian~2 (1. Institute of Grassland Science, China Agricultural University, Beijing 100094, China; 2. Chinese Academy of Environment Science, Chengde 365000, China);The content of soil Micro-biomass Carbon and Nitrogen of Different Grazing Intensities on Pasture[J];Acta Agrestia Sinica;2003-04
4 LI Yi,WANG Zhi tai (Gansu Agricultural University, Lanzhou 730070, China);Analysis of age structure of Salix oritrepha clonal population and its dynamics in alpine area of east Qilian Mountain, China[J];Pratacultural Science;2002-03
5 ZHENG Chun-fang,LI Feng-shan(Agricultural College of the Inner Mongolia University for Nationalities,Tongliao 028042,China);Initial study of the formation cause of sand desertification of Korqin grassland and sustainable development[J];Pratacultural Science;2006-04
6 Guo Jixun; Zhu Tingcheng(Institute of Grassland Science,Northeast Normal University,Changchun 130024);The Studies on Decomposelis and Litter Decomposition in Aneurolepidium Chinense Grassland Ecosystem[J];ACTA PRATACULTURAL SCIENCE;1994-01
7 Liu Shigui;Long Zhangfu ;Ge Shaorong(Department of Biotechnology,Sichuan University,Chengdu,Sichuan 610064);Studies on Soil Microorganism Numbers and Microbiota of Degenerated Rangelands in Northwest Region of Sichuan P R.China[J];ACTA PRATACULTURAL SCIENCE;1994-04
8 REN Shujie1,2,CAO Mingkui1,TAO Bo1,LI Kerang1(1.Institute of Geographical Sciences and Natural Resources Research,CAS,Beijing 100101,China; 2.Graduate School of the Chinese Academy of Sciences(GSCAS),Beijing 100038);The Effects of Nitrogen Limitation on Terrestrial Ecosystem Carbon Cycle: a Review[J];Progress in Geography;2006-04
9 WANG Jun, FU Bo jie, QIU Yang, CHEN Li ding (Department of Systems Ecology, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China);Spatiotemporal Variability of Soil Moisture in Small Catchment on Loess Plateau——Semivariograms[J];ACTA GEOGRAPHICA SINICA;2000-04
10 KONG Xiangbin 1 , ZHANG Fengrong 1 , QI Wei 2 , XU Yan 1 (1. Dept.of Land Resources and Management,CAU,Beijing100094, China;2. Dept.of Land Resources and Management,SDAU,Tai'an271018, China);The Influence of Land Use Change on Soil Fertility in Intensive Agricultural Region:A Case Study of Quzhou County,Hebei[J];Acta Geographica Sinica;2003-03
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved