Distribution patterns of Juglans cathayensis populations at different slope aspects in Tianshan valley in Xinjiang, China

doi:10.13287/j.1001-9332.201610.004

Abstract

Abstract: Eight 4000 m² plots were set up at eight sites distributed on sunny and shady slopes of four valleys, and adjacent lattice method was used to survey Juglans cathayensis populations. At different scales, aggregation intensity index such as variance/mean ration and deviation index (C_x), negative binomial parameter (K), clumping index (I), mean crowding index (m^*), patchiness index (PAI) and aggregation index (C_a) were used to analyze distribution patterns of populations. With the increase of surveying scales, the distribution patterns changed from cluster to random. Populations presented a clustered distribution when the scale was 25 m². Aggregation intensity had great differences among different plots, and the maximum one located on west shady slope and the minimum one did on south shady slope. However, populations presented a random distribution when the scale was 50-400 m². When scale was 25 m², saplings, young and mature trees showed a clustered distribution. Aggregation intensity of mature trees was the maximum one and that of saplings was the minimum one. When the scale was 200-400 m², saplings, young and mature trees showed random distribution. The pattern size of J. cathayensis populations was 25 m² and pattern intensity was 2.49-9.38 m². The pattern intensity of young trees was the largest and that of mature trees was the least in population components. In a word, when sampling scale was close to population patch size, a reliable conclusion usually could be obtained by using adaptive determination method and multi-index comprehensive decision.

ZHANG Wei, LI Hai-yan, LAI Xiao-hui, YANG Yun-fei. Distribution patterns of Juglans cathayensis populations at different slope aspects in Tianshan valley in Xinjiang, China[J]. Chinese Journal of Applied Ecology, 2016, 27(10): 3105-3113.

References

[1] Gou X-H (勾晓华), Chen F-H (陈发虎), Yang M-X (杨梅学), et al. Analysis of the tree-ring width chronology of Qilian Mountains at different elevation. Acta Ecologica Sinica (生态学报), 2004, 24(1): 172-176 (in Chinese)
[2] Luo ZR, Ding BY, Mi XC, et al. Distribution patterns of tree species in an evergreen broadleaved forest in eas-tern China. Frontiers of Biology in China, 2009, 4: 531-538
[3] Jia M-Y (贾美玉), Li X-H (李雪华), Wu Z-X (吴忠铉), et al. Spatial distribution pattern and allometric growth of three common species on moving sand dunes in Horqin Sandy Land, China. Chinese Journal of Applied Ecology (应用生态学报), 2015, 26(10): 2953-2960 (in Chinese)
[4] Zhu Y (祝燕), Bai F (白帆), Liu H-F (刘海丰), et al. Population distribution patterns and interspecific spatial associations in warm temperate secondary forests, Beijing. Biodiversity Science (生物多样性), 2011, 19(2): 252-259 (in Chinese)
[5] Yuan C-M (袁春明), Meng G-T (孟广涛), Fang X-J (方向京), et al. Age structure and spatial distribution of the rare and endangered plant Alcimandra cathcartii. Acta Ecologica Sinica (生态学报), 2012, 32(12): 3866-3872 (in Chinese)
[6] Harper JL. Population Biology of Plant. London: Acadmic Press, 1977
[7] Zhang Y-X (张育新), Ma K-M (马克明), Qi J (祁建), et al. Size structure and spatial pattern of Quercus wutaishanica population along elevation gradient in Dongling Mountain, Beijing. Acta Ecologica Sinica (生态学报), 2009, 29(6): 2789-2796 (in Chinese)
[8] Legendre P, Fortin MJ. Spatial pattern and ecological analysis. Plant Ecology, 1989, 80: 107-138
[9] Song C (宋超), Yu Q-Y (余琦殷), Yu M-F (于梦凡), et al. Population structure and spatial distribution characteristics of Phellodendron amurense in Beijing. Chinese Journal of Ecology (生态学杂志), 2015, 34(11): 3040-3049 (in Chinese)
[10] Zhao Z-S (赵正帅), Zheng Y-Q (郑亚琼), Liang J-Y (梁继业), et al. Spatial distribution pattern of Populus euphratica and P. pruinosa clonal ramets in Tarim River Basin, China. Chinese Journal of Applied Ecology (应用生态学报), 2016, 27(2): 403-411 (in Chinese)
[11] Yang H (杨慧), Lou A-R (娄安如), Gao Y-J (高益军), et al. Life history characteristics and spatial distribution of the Betula platyphylla population in the Dongling Mountain region, Beijing, China. Journal of Plant Ecology (植物生态学报), 2007, 31(2): 272-282 (in Chinese)
[12] Wang Y (汪洋), Leng Y-Z (冷艳芝), Su C-J (苏长江), et al. Spatial structure and distribution pattern of natural Toona ciliata populations in the Enshi Region. Journal of Zhejiang A＆F University (浙江农林大学学报), 2016, 33(1): 17-25 (in Chinese)
[13] Chen X-B (陈香波), Tian Q (田旗), Zhang Q-X (张启翔). Population structure and spatial distribution pattern of Calycanthus chinensis. Journal of Tropical and Subtropical Botany (热带亚热带植物学报), 2012, 20(1): 66-71 (in Chinese)
[14] Zheng F-Y (郑凤英), Zhang J-T (张金屯), Shangguan T-L (上官铁梁), et al. The distribution patterns of Paeonia suffruticosa var. spontanea and the quantity analysis of the communities where it grows. Journal of Wuhan Botanical Research (武汉植物学研究), 1998, 16(3): 255-262 (in Chinese)
[15] Wang Z (王鸷), Pang Y-J (逄玉娟), Liu C-L (刘传林), et al. Distribution pattern and analysis of inf-luencing factors of rare plant Anemone chosenicola (Makino) Makino. Bulletin of Botanical Research (植物研究), 2014, 34(4): 440-445 (in Chinese)
[16] Wu Y (吴岩), Lu P (鲁萍), Sun Y-K (孙彦坤), et al. Study on distribution patterns of Ambrosia artemisiifolia along roadsides in Jingpo Lake National Park. Journal of Northeast Agricultural University (东北农业大学学报), 2013, 44(5): 61-65 (in Chinese)
[17] Zhang X-S (张新时). On the eco-geographical characters and the problems of classification of the wild fruit-tree forest in the Ili valley of Sinkiang. Acta Botanica Sinica (植物学报), 1973, 15(2): 239-253 (in Chinese)
[18] Fu L-G (傅立国). China Plant Red Data Book. Beijing: Science Press, 1991: 56 (in Chinese)
[19] National Adiministration of Environmental Protection (国家环境保护局), Institute of Botany, Chinese Academy of Sciences (中国科学院植物研究所). China Rare and Endangered Plants (Volume 1). Beijing: Science Press, 1987 (in Chinese)
[20] Wang L (王磊), Cui N-R (崔乃然), Zhang H-F (张汉斐). Research report of Xinjiang wild walnuts. Arid Zone Research (干旱区研究), 1997, 14(1): 17-27 (in Chinese)
[21] Xu D-Y (徐德炎). Study on eco-climatic features of Xinjiang wild walnuts. Chinese Journal of Ecology (生态学杂志), 1989, 8(4): 24-27 (in Chinese)
[22] She D-Y (佘定域). Formation and characteristics of wild walnut forest soils in Gongliu County. Arid Zone Research (干旱区研究), 1994, 11(2): 11-15 (in Chinese)
[23] Nuer M-M (努尔买买提), Zhang X-F (张相锋), Zhang W (张维). Flora and geographical compositions in natural conservation area of Juglans cathayensis in Xinjiang, China. Chinese Journal of Ecology (生态学杂志), 2015, 34(7): 1838-1846 (in Chinese)
[24] Zhang W (张维), Ren Y-L (任艳利), Zhao Y (赵玉), et al. Biomass plasticity and allocation rules for modules of compound leaves with a different number of leaflets on Juglans cathayensis in Xinjiang. Journal of Northeast Forestry University (东北林业大学学报), 2012, 40(7): 37-40 (in Chinese)
[25] Zhang W (张维), Luo X-Z (罗新泽), Zhang N (张娜), et al. Phenotypic variability and growth characteristics of wild walnut seeds in Xinjiang, Northwest China. Chinese Journal of Ecology (生态学杂志), 2013, 32(9): 2281-2288 (in Chinese)
[26] Zhang W (张维), Jiao Z-W (焦子伟), Shang T-C (尚天翠), et al. Demography and spectrum analysis of Juglans cathayensis populations in different altitude gradients in the west Tianshan valley in Xinjiang, China. Chinese Journal of Applied Ecology (应用生态学报), 2015, 26(4): 1091-1098 (in Chinese)
[27] Zhang W, Yang YF, Li JD. Static life table and growth analysis of seedlings of Juglans mandshurica in Xinjiang, China. Austrian Journal of Forest Science, 2015, 132: 131-144
[28] Diaz S, Mercado C, Alvarez-Cardenas S. Structure and population dynamics of Pinus lagunae MF. Passini. Fo-rest Ecology and Management, 2000, 134: 249-256
[29] Frost I, Rydin H. Spatial pattern and size distribution of the animal-dispersed Quercus rubur in two spruce-dominated forests. Ecoscience, 2000, 7: 38-44
[30] Zheng Y-R (郑元润). The applicability of various methods in analysis of Picea mongolica population spatial distribution pattern. Acta Phytoecologica Sinica (植物生态学报), 1997, 21(5): 480-484 (in Chinese)
[31] Kershaw KA. An empirical approach to the estimation of pattern intensity from density and cover data. Ecology, 1970, 51: 729-734
[32] Gittins R. Canonnical Analysis: A Review with Applications in Ecology. Berlin, Germany: Sprinter Verlag, 1985
[33] Liu W-D (刘万德), Su J-R (苏建荣), Wang M-J (王梦君), et al. Spatial distribution pattern of Taxus yunnanensis population in Northwest Yunnan Province. Journal of Northwest Forestry University (西北林学院学报), 2012, 27(6): 131-138 (in Chinese)
[34] Chen Z-Y (陈志阳), Yang N (杨宁), Yao X-M (姚先铭), et al. Life history and spatial distribution of a Taiwania flousiana population in Leigong Mountain, Guizhou Province, China. Acta Ecologica Sinica (生态学报), 2012, 32(7): 2158-2165 (in Chinese)
[35] Li H-T (李海涛). Introduction to studies of the pattern of plant population. Chinese Bulletin of Botany (植物学通报), 1995, 12(2): 19-26 (in Chinese)
[36] Zhang J-T (张金屯). Quantitative Ecology. Beijing: Science Press, 1995: 105 (in Chinese)
[37] Wang B-S (王伯荪), Li M-G (李鸣光), Peng S-L (彭少麟). Science of Plant Population. Guangzhou: Guangdong Higher Education Press, 1995: 85-128 (in Chinese)