A comparison of the altitudinal patterns in plant species diversity within the dry valleys of the Three Parallel Rivers region, northwestern Yunnan

Yang Yang1 Jie Han1 Ye Liu2 Ciren Zhongyong3 Songlin Shi 4 Cili Sina 3 Yue Xu1 Lingxiao Ying 1 Wanjun Zhang 1 Zehao Shen 1

(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.School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen, Guangdong 518055)
(3.Yunnan Baima Snow Mountain National Nature Reserve, Deqin, Yunnan 674500)
(4.State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085)

【Abstract】In the typical dry valleys of the Three Parallel Rivers region, northwest Yunnan Province, we investigated vegetation using six sampling transects, each comprised of ten standard plots, along altitudinal gradients on the eastern and the western aspects of Nu River, Langcang River, and Jinsha River. With these data, we compared the elevation-related distribution of plant species richness and species turnover rates along the six transects, and explained the patterns using geography and vegetation variables. The dry-warm vegetation zone was dominated by shrubs and herbs and located below the altitude of 3,000 m a.s.l. At higher elevations, shrub and herbs were replaced with a forest zone. The spatial distribution of plant species richness increased with elevation and latitude, especially for herb and shrub species, and was also related to river, vegetation zones, and longitude. The species richness of shrubs also increased significantly across the region, from west to east. Species richness of herbs and shrubs in the Nu River were higher than those in the Lancang River and the Jinsha River, whereas the difference of species richness among three rivers was not significant for trees. Herb species richness in the forest zone was less than that in the shrub and herb zones. Species turnover rate of different zones presented inconsistent altitudinal gradient patterns, but all peak values appeared in the ecotones between shrub communities, in the lower altitudes of the transect, and forest communities, in the higher altitudes. The forest-shrub ecotone is located at an altitude range of 1,900–2,100 m in the Nu River valley, at an altitude range of 2,300–2,400 m in the Lancang River valley and at an altitude range of 2,700–2,900 m in the Jinsha River valley. The mean species turnover rates between shrub & herb section and forest section within each transect were less than the mean turnover rates of the same vegetation section between different transects within the same basin, and also less than the mean turnover rates for same vegetation section in all six transects. Spatial isolation could explain 34.2% of the variation in species turnover rate among the 12 vegetation sections of the six altitudinal transects, while vegetation differences explained less than 0.5% of the variation. These results show the primary role of environment difference in determining the species richness between vegetation types, whereas geographical isolation between the rivers as a dominant factor in the assembly(e.g., species composition) of plant communities.

【Keywords】 Three Parallel Rivers; dry valleys; species richness; altitudinal patterns; community structure;


【Funds】 National Natural Science Foundation of China (41371190) “Plans for the West” Program of the Ministry of Transport (200831879917)

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    Alicia MY, Moreno LA, Piñero D, Jorgensen TH, Emerson BC(2015)Biodiversity in the mexican highlands and the interaction of geology, geography and climate within the trans-mexican volcanic belt. Journal of Biogeography, 42, 1586-1600.

    Barthlott W, Hostert A, Kier G, Kueper W, Kreft H, Mutke J(2007)Geographic patterns of vascular plant diversity at continental to global scales. Erdkunde, 61, 305-315.

    Baselga A(2010)Partitioning the turnover and nestedness components of beta diversity. Archives Danatomie Dhistologie Et Dembryologie Normales Et Expérimentales, 19, 134-143.

    Baselga A, Leprieur F(2015)Comparing methods to separate components of beta diversity. Methods in Ecology and Evolution, 6, 1069-1079.

    Beck J, Chey VK(2008)Explaining the elevational diversity pattern of geometrid moths from borneo: a test of five hypotheses. Journal of Biogeography, 35, 1452-1464.

    Beck J, Kitching IJ(2009)Drivers of moth species richness on tropical altitudinal gradients: a cross-regional comparison. Global Ecology&Biogeography, 18, 361-371.

    Bram V, Falko B, Luc B(2013)Disturbance regime alters the impact of dispersal on alpha and beta diversity in a natural metacommunity. Ecology, 11, 2547-2557.

    Colwell RK, Rahbek C, Gotelli N(2004)The mid-domain effect and species richness patterns: what have we learned so far?The American Naturalist, 163, E1-E23.

    Donzelli D, De Michele C, Scholes RJ(2013)Competition between trees and grasses for both soil water and mineral nitrogen in dry savannas. Journal of Theoretical Biology, 332181-190.

    Fang JY(2004)Exploring altitudinal patterns of plant diversity of China’s mountains. Biodiversity Science, 12, 1-4 (in Chinese).

    Feng JM, Wang XP, Xu CD, Yang YH, Fang JY(2006)Altitudinal patterns of plant species diversity and community structure on Yulong Mountains, Yunnan, China. Journal of Mountain Science, 24, 110-116 (in Chinese with English abstract).

    Graham CH, Fine PVA(2008)Phylogenetic beta diversity: linking ecological and evolutionary processes across space in time. Ecology Letters, 11, 1265-1277.

    Grytnes JA(2003)Species-richness patterns of vascular plants along seven altitudinal transects in Norway. Ecography, 26291-300.

    Grytnes JA, Heegaard E, Romdal TS(2008)Can the mass effect explain the mid-altitudinal peak in vascular plant species richness?Basic and Applied Ecology, 9, 373-382.

    He JS, Chen WL(1997)A review of gradient changes in spec ies diversity of land plant communities. Acta ecologica sinica, 17, 91-99 (in Chinese with English abstract).

    He YB, Lu PZ, Zhu T(2000)Causes for the formation of dry-hot valleys in Hengduan Mountain, Yunnan Plateau Resources Science, 22(5), 69-72 (in Chinese with English abstract).

    Hubbell SP(1979)Tree dispersion, abundance, and diversity in a tropical dry forest. Science, 203, 1299-1309.

    Jiang LG, Liu XN, Feng ZM(2014)Spatial-temporal pattern analysis of land use and land cover change in Xishuangbanna. Resources Science, 36(2), 259-266 (in Chinese with English abstract).

    Jiang Y, Kang MY, Zhu Y, Xu GC(2007)Plant biodiversity patterns on Helan Mountain, China. Acta Oecologica, 32125-133.

    Kessler M(2000)Altitudinal zonation of andean cryptogam communities. Journal of Biogeography, 27, 275-282.

    Kraaij T, Ward D(2006)Effects of rain, nitrogen, fire and grazing on tree recruitment and early survival in bush-encroached savanna, South Africa. Plant Ecology, 186235-246.

    Li K, Liu FY, Yang ZY, Sun YY(2011)Study status and trends of vegetation restoration of dry-hot valley in Southwest China. World Forestry Research, 24(4), 55-60 (in Chinese with English abstract).

    Li XW(1995)A floristic study on the seed plants from the region of Yunnan Plateau. Acta Botanica Yunnanica, 17(1)1-14 (in Chinese with English abstract).

    Liu FY, Li K, Sun YY, Tang GY, Zhang CH(2010)Effects of climate on vegetation recovery in dry-hot valleys of Hengduan Mountainous region in Southwest China. Resources and Environment in the Yangtze Basin, 19, 1386-1391 (in Chinese with English abstract).

    Mac Arthur RH(1972)Mathematical ecology and its place among the sciences. Science, 178, 389-394.

    Ma K, Li YN, Jin H, Long ZH, Lu YP(2011)A comparison of the species diversity of Trollius chinensis community in different habitats. Pratacultural Science, 28, 1467-1472 (in Chinese with English abstract).

    Mc Cain CM, Sanders NJ(2010)Metabolic theory and elevational diversity of vertebrate ectotherms. Ecology, 91601-609.

    Ming QZ, Shi ZT(2007)New discussion on dry valley formation in the Three Parallel Rivers Region. Journal of Desert Research, 27(1), 99-104 (in Chinese with English abstract).

    Myers N, Mittermeier RA, Mittermeier CG, Da FG, Kent J(2000)Biodiversity hotspots for conservation priorities. Nature, 403, 853-858.

    Nong Y, Zheng L, Jia HY, Lu LH, Huang DW, Huang BH, Lei LQ(2015)Community characteristics and spatial distribution of dominant tree species in a secondary forest of Daqing Mountains, southwestern Guangxi, China. Biodiversity Science, 23, 321-331 (in Chinese with English abstract).

    Novillo A, Ojeda RA(2014)Elevation patterns in rodent diversity in the dry Andes: disentangling the role of environmental factors. Journal of Mammalogy, 95, 99-107.

    O’Brien EM, Field R, Whittaker RJ(2000)Climatic gradients in woody plant(tree and shrub)diversity: water-energy dynamics, residual variation, and topography. Oikos, 89588-600.

    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).

    Peixoto FP, Braga PHP, Cianciaruso MV, Diniz-Filho JAF, Brito D(2014)Global patterns of phylogenetic beta diversity components in bats. Journal of Biogeography, 41, 762-772.

    Qian H, Badgley C, Fox DL(2009)The latitudinal gradient of beta diversity in relation to climate and topography for mammals in North America. Global Ecology and Biogeography, 18, 111-122.

    Rahbek, C. (2005). The role of spatial scale and the perception of large-scale species-richness patterns. Ecology Letters, 8, 224-239.

    Rossatto DR, Hoffmann WA, Franco AC(2009)Differences in growth patterns between co-occurring forest and savanna trees affect the forest-savanna boundary. Functional Ecology, 23, 689-698.

    Ruifrok JL, Postma F, Olff H, Smit C(2014)Scale-dependent effects of grazing and topographic heterogeneity on plant species richness in a Dutch salt marsh ecosystem. Applied Vegetation Science, 17, 615-624.

    Salazar A, Goldstein G, Franco AC(2012)Differential seedling establishment of woody plants along a tree density gradient in Neotropical savannas. Journal of Ecology, 100, 1411-1421.

    Sankaran M, Ratnam J, Hanan N(2008)Woody cover in African savannas: the role of resources, fire and herbivory. Global Ecology and Biogeography, 17, 236-245.

    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, Hu HF, Zhou Y, Fang JY(2004)Altitudinal patterns of plant species diversity on the southern slope of Mt. Shennongjia, Hubei, China. Biodiversity Science, 12, 99-107 (in Chinese with English abstract).

    Shen ZH, Zhang XS(2000)A quantitative analysis on the floristic elements of the Chinese subtropical region and their spatial patterns. Acta phytotaxonomica Sinica, 38, 366-380.

    Slik JWF, Raes N, Aiba SI, Brearley FQ, Cannon CH(2009)Environmental correlates for tropical tree diversity and distribution patterns in Borneo. Diversity and Distributions, 19, 523-532.

    Stevens G(1996)Extending rapoport's rule to pacific marine fishes. Journal of Biogeography, 23, 149-154.

    Sun ZH, Peng SJ, Ou XK(2007)A quick assessment and environmental interpretation for the tree species richness in the Gaoligong Mountain Range. Chinese Science Bulletin52(S2), 195-200.

    Svenning JC, Fitzpatrick MC, Normand S, Graham CH, Pearman PB, Iverson LR, Skov F(2010)Geography, topography, and history affect realized-to-potential tree species richness patterns in Europe. Ecography, 33, 1070-1080.

    Tao J, Zang RG, Yu CY(2011)Altitudinal patterns of plant communities and species diversity in the Habaxueshan Mountains, Yunnan, China. Scientia Silvae Sinicae, 47(7)1-6 (in Chinese with English abstract).

    Tang ZY, Fang JY(2004)A review on the elevational patterns of plant species diversity. Biodiversity Sciences, 2004, 1220-28 (in Chinese with English abstract).

    Valdés A, Lenoir J, Emilie GM, Andrieu E, Brunet J, Chabrerie O, Déborah CK, Cousins SA, Deconchat M, Frenne PDSmedt PD, Diekmann M, Hansen K, Hermy M, Kolb ALiira J, Lindgren J, Naaf T, Paal T, Prokofieva I, Michael SL, Wulf M, Verheyen K, Decocq G(2015)The contribution of patch-scale conditions is greater than that of macroclimate in explaining local plant diversity in fragmented forests across Europe. Global Ecology and Biogeography, 241094-1105.

    Vega RV, Salazar A, Wilhelm FM(2014)Do groundwater dynamics drive spatial patterns of tree density and diversity in Neotropical savannas. Journal of Vegetation Science, 251465-1473.

    Wang KQ, Shen YX, Chen QB, Wang ZH(2004)Soil water environment of artificial vegetation in Jinshajiang dry-hot valley. Chinese Journal of Applied Ecology, 15, 809-813(in Chinese with English abstract)

    Wang ZH, Chen AP, Piao SL, Fang JY(2004)Pattern of species richness along an altitudinal gradient on Gaoligong Mountains, Southwest China. Biodiversity Science, 1282-88 (in Chinese with English abstract).

    Wang ZH, Tang ZY, Fang JY(2007)Altitudinal patterns of seed plant richness in the Gaoligong Mountains, southeast Tibet, China. Diversity and Distributions, 13, 845-854.

    Whittaker RH(1960)Vegetation of the Siskiyou Mountains Oregon and California. Ecological Monographs, 30, 279-338.

    Wu SH, Zhang YP(2009)The Special Environmental Patterns and Ecological Impacts in the Longitudinal Range-Gorge Region. Science Press, Beijing (in Chinese with English abstract).

    Wu Y, Colwell RK, Han N, Zhang R, Wang W, Quan Q, Zhang C, Song G, Qu Y, Lei F(2014)Understanding historical and current patterns of species richness of babblers along a 5000 m subtropical elevational gradient. Global Ecology and Biogeography, 23, 1167-1176.

    Xu J, Zhang BP, Zhu YH, Sun RH(2006)Distribution and geographical analysis of altitudinal belts in the Altun-Qilian Mountains. Geographical Research, 25, 977-984 (in Chinese with English abstract).

    Yang D, Xiong DH, Zhai J, Li JJ, Su ZA, Dong YF(2012)Morphological characteristics and causes of gullies in Yuanmou dry-hot valley region. Science of Soil and Water Conservation, 10, 38-45 (in Chinese with English abstract).

    Yang R, Zhang BR, Wang LL, Yang JJ, Su WH, Zhang GF, Yang B, Zhou R(2010)The response of plant functional traits’group to gradients of altitude in dry-hot valley of Yuan-Mou. Ecology and Environmental Sciences, 24, 49-56 (in Chinese with English abstract).

    Yang Y, Shen Z, Han J, Zhongyong C(2016)Elevational gradients of plant species diversity along east and west slopes of Baima Snow Mountain in Southwest China. Forests, 7, 89-105.

    Zhang JL, Liu XK, Shen R, Shi W, Zhang ZM, Zhou R, Ou XK(2010)The species quantitative&diversity characteristic of grassland community in hot-dry valley of Jinsha River. Ecology and Environmental Sciences, 19, 1519-1524 (in Chinese with English abstract).

    Zhang YP, Duan ZX, Dou JX(2005)Comparison of climate characteristics between a dry-warm valley in upper reaches of Min River and a dry-hot valley of Yuanjiang River. Resources and Environment in the Yangtze Basin, 14(1), 76-82 (in Chinese with English abstract).

    Zhang ZM, Wang WL, Ou XK, Wu WQ(2009)The correlation between vegetation spatial pattern and environmental factors. Journal of Yunnan University(Natural Sciences Edition), 31, 311-315 (in Chinese with English abstract).

    Zhao L, Lang NJ, Zheng K, Peng MJ(2006)A study on eco-environmental characteristics of dry and hot valley of Yunnan Province. Forest Inventory and Planning, 31(3)114-117 (in Chinese with English abstract).

This Article



Vol 24, No. 04, Pages 440-452

April 2016


Article Outline


  • 1 Research Regions and Research Methods
  • 2 Results
  • 3 Discussion
  • Supplementary Material
  • References