Comparison of plant species diversity and composition in the dry valleys of Yalong River and Dadu River: evaluating the effects of climate, topography and space

Jie Han1 Zehao Shen1 Songlin Shi2,3 Peihao Peng2

(1.Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871)
(2.College of Tourism and Urban-rural Planning, Chengdu University of Technology, Chengdu 610058)
(3.State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100875)

【Abstract】The vegetation of dry valleys is a suit of unique azonal ecosystems embedded in the Hengduan Mountains region of Southwest China, with the difference of plant communities between the valleys and the causal factors still elusive. In this study, we investigated the dry valleys of the Yalong River and the Dadu River and compared plant diversity. Different factors were found to impact the vegetation types between the two rivers. Elevation and topography (slope and aspect) impacted vegetation types of the Yalong River and mean annual precipitation impacted the Dadu River. Plant richness in the valleys of the two rivers decreased with greater mean annual temperature. From a north to south aspect, plant richness of the dry valley communities decreased in the Yalong River, while increased in the Dadu River. Richness of shrubs in both the Yalong River and the Dadu River were greater at increased slopes. The β diversity of plant community in the dry valleys of the Yalong River and the Dadu River was affected more by environmental than geographical distance. The effect of geographical isolation on the two rivers was approximately 4 times greater than the effect of geographical distance. This research fills the knowledge gap about plant diversity of dry valleys vegetation in the Yalong River and the Dadu River, and reference information for vegetation conservation in the dry valleys of the two rivers. In addition, it provides a practical method for the quantitative assessment of geographical isolation effect on regional biodiversity difference.

【Keywords】 dry valley; plant diversity; vegetation types; geographical isolation;


【Funds】 National Natural Science Foundation of China (41371190) “Plans for the West” Program of Ministry of Transport (2008 318 799 17)

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    Antillensis E, Barker BS, Rodríguez-Robles JA, Aran VS, Waide RB, Cook JA (2012). Sea level, topography and island diversity: phylogeography of the Puerto Rican Red-eyed Coquí. Molecular Ecology, 21, 6033-6052.

    Bai WQ, Zhang YL, Bao WK (2003). Landscape patterns and dynamics in the upper reaches of Dadu River. Journal of Natural Resources, 18(1), 75-80 (in Chinese with English abstract).

    Bates D, Maechler M, Bolker B, Walker S (2015). Fitting linear mixed-effects models using lme4. Journal of Statistical Software, 67, 1-48.

    Brown JH, Stevens GC, Kaufman DM (1996). The geographic range: size, shape, boundaries, and internal structure. Annual Review of Ecology and Systematics, 27, 597-623.

    Cao M, Jin ZZ (1989). Classification of vegetation in Qiao Jia dry-hot river valley of Jinsha River, Yunnan. Acta Botanica Yunnanica, 11, 324-336 (in Chinese with English abstract).

    Fang JY, Song YC, Liu HY, Piao SL (2002). Vegetation-climate relationship and its application in the division of vegetation zone in China. Acta Botanica Sinica, 44, 1105-1122.

    FjeldsåJ, Bowie RCK, Rahbek C (2012). The role of mountain ranges in the diversification of birds. Annual Review of Ecology, Evolution, and Systematics, 43, 249-265.

    Guan WB, Yan MS, Ma KM, Liu GH, Wang XL, Tang H (2004) The relationships between plant community species turnover rates and environmental factors in the arid valley of Minjiang River. Acta Ecologica Sinica, 24, 2367-2373 (in Chinese with English abstract).

    He F, Xie W, Liu XL, Ma QY, He YP, Chen JH, Cai XH, Long TL (2008) Pteridophytic flora of the upper reaches of the Yalong River in western Sichuan Province. Journal of Chengdu University (Natural Science Edition) , 27, 276-280 (in Chinese with English abstract).

    Hawkins BA, Field R, Cornell HV, Currie DJ, Guegan JF, Kaufman DM, Kerr JT, Mittelbach GG, Oberdorff T, O’Brien EM, Porter EE, Turner JRG (2003) Energy, water, and broad-scale geographic patterns of species richness. Ecology, 84, 3105-3117.

    Hill MO (1979) TWINSPAN-A Fortran Program for Arranging Multivariate Data in an Ordered Two-way Table by Classification of the Individuals and Attributes. Cornell University Press, Ithaca.

    Jaccard P (1912) The distribution of the flora in the alpine zone. New Phytologist, 11, 37-50.

    Jacquemyn H, Butaye J, Hermy M (2001) Forest plant species richness in small, fragmented mixed deciduous forest patches: the role of area, time and dispersal limitation. Journal of Biogeography, 28, 801-812.

    Jenkins DG, Carey M, Czerniewska J, Fletcher J, Hether T, Jones A, Knight S, Knox J, Long T, Mannino M, Mc Guire M, Riffle A, Segelsky S, Shappell L, Sterner A, Strickler TTursi R (2010) A meta-analysis of isolation by distance: relic or reference standard for landscape genetics?Ecography33, 315-320.

    Jin ZZ (1998) Study on the floristic elements of seed plant in the dry-warm valleys of Yunnan and Sichuan. Guihaia, 18313-321 (in Chinese with English abstract).

    Jin ZZ (1999a) The floristic study on seed plants in the dry-hot valleys, Yunnan and Sichuan. Guihaia, 19, 1-14 (in Chinese with English abstract).

    Jin ZZ (1999b) A phytosociological study on the semi-savanna vegetation in the dry-hot valleys of Yuanjiang River, Yunnan. Guihaia, 19, 289-302 (in Chinese with English abstract).

    Jin ZZ (2002) Floristic Features of Dry-hot and Dry-warm Valleys in Yunnan and Sichuan Provinces. Yunnan Science&Technology Press, Kunming (in Chinese).

    Jin ZZ, Ou XK (2000) Yuanjiang, Nujiang, Jinshajiang, Lancangjiang Vegetation of Dry-Hot Valley. Yunnan University Press, Yunnan Science&Technology Press, Kunming (in Chinese).

    Keddy PA (1992) Assembly and response rules: two goals for predictive community ecology. Journal of Vegetation Science, 3, 157-164.

    Kudoh H (2001) Gene flow among plant populations in ecological landscape. Japanese Journal of Ecology, 84, 1285-1293.

    Legendre P, Legendre L (1998) Numerical Ecology, pp139-141, 247-258, 279. Elsevier, Amsterdam.

    Lomolino MV (2000) Ecology’s most general, yet protean pattern: the species-area relationship. Journal of Biogeography, 27, 17-26.

    Liu LH (1989) Vegetational types of the valleys in the Hengduan Mountains region. Mountain Research, 7, 175-182 (in Chinese with English abstract).

    Liu XL, Mu CL, Xiang CH, Su YM (2001) Natural features of arid river valleys in western Sichuan and their vegetation restoring and reestablishing ways. Journal of Sichuan Forestry Science and Technology, 22 (2) , 10-17 (in Chinese with English abstract).

    Liu Y (2015) Plant Diversity and Biogeography of the Arid Valleys in Southwest China. Ph D dissertation, Peking University, Beijing (in Chinese with English abstract).

    Liu ZZ, Peng PH, Zhou ZK (2013) Application of 3S techniques in vegetation type investigation in Yajiang. Geospatial Information, 11 (2) , 78-79 (in Chinese with English abstract).

    Little RC, Milliken GA, Stroup WW (1996) SAS System for Mixed Models. SAS Institute Inc. , Cary, NC.

    Manel S, Schwartz MK, Luikart G, Taberlet P (2003) Landscape genetics: combining landscape ecology and population genetics. Trends in Ecology&Evolution, 18, 189-197.

    Manel S, Segelbacher G (2009) Perspectives and challenges in landscape genetics. Molecular Ecology, 18, 1821-1822.

    Mantel N (1967) The detection of disease clustering and a generalized regression approach. Cancer Research, 27, 209-220.

    Mc Cune B, Mefford M (1999) PC-ORD. Multivariate Analysis of Ecological Data, version 4. 0. MjM Software Design, Gleneden Beach, OR, USA.

    Niu KC, Liu YN, Shen ZH, He FL, Fang JY (2009) Community assembly: the relative importance of neutral theory and niche theory. Biodiversity Science, 17, 579-593 (in Chinese with English abstract).

    Ohsawa T, Saito Y, Sawada H, Ide Y (2008) Impact of altitude and topography on the genetic diversity of Quercus serrata populations in the Chichibu Mountains, central Japan. Flora, 203, 187-196.

    Ou XK (1988) The study of flora in Yuanmou dry-hot river valley. Acta Botanica Yunnanica, 10, 11-18 (in Chinese with English abstract).

    Ou XK, Jin ZZ (1996) A preliminary study on the flora and ecological diversity in Jinsha River dry-hot valley. Journal of Wuhan Botanical Research, 14, 318-322 (in Chinese with English abstract).

    Preston FW (1962) The canonical distribution of commonness and rarity. Ecology, 43, 185-215.

    Rahbek C, Gotelli NJ, Colwell RK, Entsminger GL, Rangel, TFL, Graves GR (2007) Predicting continental-scale patterns of bird species richness with spatially explicit models. Proceedings of the Royal Society of London B. Biological Sciences, 274, 165-174.

    Siefert A, Razvenscroft C, Weiser MD, Swenson NG (2013) Functional beta-diversity patterns reveal deterministic community assembly processes in eastern North American trees. Global Ecology and Biogeography, 22, 682-691.

    Shen R, Zhang JL, He B, Li F, Zhang ZM, Zhou R, Ou XK (2010) The structure characteristic and analysis on similarity of grassland community in dry-hot valley of Yuanjiang River. Ecology and Environmental Sciences, 19, 2821-2825 (in Chinese with English abstract).

    Shen ZH, Fang JY, Liu ZL, Wu J (2001) Patterns of biodiversity along the vertical vegetation spectrum of the east aspect of Gongga Mountains. Acta Phytoecologica Sinica 25, 721-732 (in Chinese with English abstract).

    Shen ZH, Fei SL, Feng JM, Liu YN, Liu ZL, Tang ZY, Wang XP, Wu XP, Zheng CY, Zhu B, Fang JY (2012) Geographical patterns of community-based tree species richness in Chinese mountain forests: the effects of contemporary climate and regional history. Ecography, 35, 1134-1146.

    Shen ZH, Ji CJ (2010) Landscape genetics: principles and its applications for the genetic effects of habitat fragmentation. Acta Ecologica Sinica, 30, 5066-5076 (in Chinese with English abstract).

    Shen ZH, Jin YX, Zhao ZE, Wu JQ, Huang HD (2000) A study on the quantitative classification of forest communities of Dalaoling region at the Three Gorges. Journal of Wuhan Botanical Research, 18, 99-107 (in Chinese with English abstract).

    Slatkin M, Maddison W (1990) Detecting isolation by distance using phylogenies of genes. Genetics, 126, 249-260.

    Slatkin M (1993) Isolation by distance in equilibrium and nonequilibrium populations. Evolution, 47, 264-279.

    Sork VL, Nason J, Campbell DR, Fernendez JF (1999) Landscape approaches to historical and contemporary gene flow in plants. Trends in Ecology&Evolution, 14, 219-224.

    Storfer A, Murphy MA, Evans JS, Goldberg CS, Robinson S, Spear SF (2007) Putting the“landscape”in landscape genetics. Heredity, 98, 128-142.

    Tang ZY, Fang JY, Chi XL, Feng JM, Liu YN, Shen ZH, Wang XP, Wang ZH, Wu XP, Zheng CY, Gaston KJ (2012) Patterns of plant beta-diversity along elevational and latitudinal gradients in mountain forests of China. Ecography, 35, 1083-1091.

    Thomas K, Anna MH, Thomas W (2004) Rarefaction method for assessing plant species diversity on a regional scale. Ecography, 27, 532-544.

    Wan DH, Xia J, Song XF, Liu SX (2008) Evaluation of ecological water requirement based on hydrological cycle analysis. Journal of Hydraulic Engineering, 39, 994-1000 (in Chinese with English abstract).

    Wang IJ (2012) Environmental and topographic variables shape genetic structure and effective population sizes in the endangered Yosemite toad. Diversity and Distributions, 18, 1033-1041.

    Wang YJ, Huang CD, Zhang J, Yang WQ, Wang XS (2010) Species diversity, biomass and their relationship of shrubberies in an arid valley of the Minjiang River. Arid Zone Research, 27, 567-572 (in Chinese with English abstract).

    Wright S (1943) Isolation by distance. Genetics, 28, 114-138.

    Ye MS, Guan WB, Tan H, Ma KM, Liu GH, Wang XL (2004) Theαdiversity of shrubs community in the arid valley of the Minjiang River. Acta Ecologica Sinica, 24, 1123-1130 (in Chinese with English abstract).

    Ye MS, Guan WB, Wu B, Ma KM, Liu GH, Wang XL, Chen JY (2006) Plant community complexity in the arid valley of Minjiang River. Acta Ecologica Sinica, 26, 3159-3165 (in Chinese with English abstract).

    Yang QZ (2007) Study on the arid-valley scrubs in the upper reaches of Minjing River. Journal of Mountain Research, 25 (1) , 1-32 (in Chinese with English abstract).

    Yu X, Feng L, Yan DH, Jia YW, Yang SH, Hu DL, Zhang MZ (2008) Development of distributed hydrological model for Yalongjiang River Basin. Journal of China Hydrology, 28 (3) , 49-53 (in Chinese with English abstract).

    Zhang JT, Li S, Li M (2010) A comparison of self-organizing feature map clustering with twinspan and fuzzy C-means clustering in the analysis of woodland communities in the Guancen Mts, China. Community Ecology, 11, 120-126.

    Zhang RZ (1992) The Dry Valleys of the Hengduan Mountains Region. Science Press, Beijing (in Chinese).

    Zhang WH, Lu T, Zhou JY, Kang YX, Ma KM, Liu GH (2003) A floristic study on seed plants in the upper reaches of Minjiang River. Acta Botanica Boreali-Occidentalia Sinica, 23, 888-894 (in Chinese with English abstract).

This Article



Vol 24, No. 04, Pages 421-430

April 2016


Article Outline



  • 1 Materials and Methods
  • 2 Results
  • 3 Discussion
  • Supplementary Material
  • References