Biodiversity Science ›› 2004, Vol. 12 ›› Issue (4): 403-409.doi: 10.17520/biods.2004049

• 论文 • Previous Article     Next Article

The effects of differences in functional group diversity and composition on plant community productivity in four types of alpine meadow communities

WANG Chang-Ting1, LONG Rui-Jun1,2*, DING Lu-Ming1   

  1. 1 Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810008
    2 College of Grassland Science,Gansu Agricultural University,Lanzhou 730070
  • Received:2003-12-24 Revised:2004-05-20 Online:2004-07-20
  • LONG Rui-Jun

The relationship between species diversity and ecosystem function is one of the core problem of biodiversity research, and productivity is an important modality of ecosystem function. The species diversity of natural communities is often strongly related to their productivity. The grassland is an important component of terrestrial ecosystems and plays a significant role in the biodiversity and ecosystem function. Understanding of how to use natural vegetation to restore deteriorated grasslands is critical for protection of grassland ecosystems. Moreover, the relationship between species richness and productivity relies on scales. At some scales, productivity affects diversity, and at other scales, species diversity also affects productivity. Thus, it is necessary to know the relationship between plant functional diversity and productivity in different grassland types. In 2003 the differences in plant functional diversity, functional composition and productivity in different grassland types of alpine meadow were analyzed. Humans are modifying both the identities and the numbers of species in ecosystems. However, the impacts of such changes on ecosystem processes are still controversial. The effects of functional diversity and composition on plant community productivity were analyzed in four types of alpine meadows. The research results show:(1) the effects of the legume functional group on productivity was greater than other functional groups in Kobresia humlis meadow and Potentilla froticosa shrub. (2) Although the biomass of forbs, C3 plants and sedge functional groups account for higher proportion of community productivity in Kobresia pygmaca meadow and K. tibetica swamp meadow, differences were not significantly different, indicating that the factors influencing community productivity were not only species diversity, but also the identity of species present and environmental resources. These factors were in turn mainly affected by species diversity and evenness among functional groups. That is, differences in functional group composition have a larger effect on ecosystem processes than functional group richness alone. (3) A significant correlation was found between the coverage per functional group and the primary productivity of communities in the four types of alpine meadows. (4) Changes in productivity with number of species per functional group showed a unimodal pattern, such that the maximum community productivity occured at an intermediate level of number of species per functional group.

CLC Number: 

  • Q948
[1] Daihua Wang, Youfang Wang, Qin Zuo, Min Li, Qianqian Wei, Xiaoqin Li, Mingshui Zhao. Comparison of bryophyte diversity in West Tianmu Mountain from 1977 to 2011 [J]. Biodiv Sci, 2013, 21(2): 170-176.
[2] Jielin Ge, Gaoming Xiong, Longqiang Deng, Changming Zhao, Guozhen Shen, Zongqiang Xie. Community dynamics of a montane Fagus engleriana–Cyclobalanopsis multiervis mixed forest in Shennongjia, Hubei, China [J]. Biodiv Sci, 2012, 20(6): 643-653.
[3] Baojiang Zheng, Lei Pan. Species composition of alien invasive plants in Heilongjiang Province [J]. Biodiv Sci, 2012, 20(2): 231-234.
[4] Yubin Xie, Zunping Ma, Qingsong Yang, Xiaofeng Fang, Zhiguo Zhang, Enrong Yan, Xihua Wang. Coexistence mechanisms of evergreen and deciduous trees based on topographic factors in Tiantong region, Zhejiang Province, eastern China [J]. Biodiv Sci, 2012, 20(2): 159-167.
[5] Jie Ji, Yanxuan Zhang, Xia Chen, Jianzhen Lin, Li Sun. The effect of repeated release of the predatory mite Neoseiulus (Amblyseius) cucumeris on arthropod communities in citrus ecosystems [J]. Biodiv Sci, 2012, 20(1): 24-31.
[6] Puwei Hu, Fuwu Xing, Lin Chen, Meina Wang, Faguo Wang, Hongfeng Chen. Vegetation and vascular plant diversity of islands surrounding Port Shelter, Hong Kong, China [J]. Biodiv Sci, 2011, 19(5): 605-609.
[7] Lei Zhang, Xiaohe Wang, Xiangcheng Mi, Jianhua Chen, Mingjian Yu. Temporal dynamics of and effects of an ice storm on litter production in an evergreen broad-leaved forest in Gutianshan National Nature Reserve [J]. Biodiv Sci, 2011, 19(2): 206-214.
[8] Yuehong Yan, Zuxia He, Hu Yuan, Fuwu Xing. The ecological response of fern diversity to different slopes in Gudoushan Nature Reserve, Guangdong [J]. Biodiv Sci, 2011, 19(1): 41-47.
[9] YANG Da-Rong, XU Lei, PENG Yan-Qiong, WEI Zuo-Dong, DUAN Zhu-Biao. Species composition and diversity of fig wasps and figs in Yunnan [J]. Biodiv Sci, 2004, 12(6): 611-617.
[10] WEI Ming-Si, CHEN Zhang-He, REN Hai, ZOU Fa-Sheng, YIN Zuo-Yun, . Seed dispersal of the pioneer shrub Rhodomyrtus tomentosa by frugivorous birds and ants [J]. Biodiv Sci, 2004, 12(5): 494-500.
[11] GENG Yu-Peng, ZHANG Wen-Ju, LI Bo, CHEN Jia-Kuan. Phenotypic plasticity and invasiveness of alien plants [J]. Biodiv Sci, 2004, 12(4): 447-455.
[12] ZHANG Wen-Hui, XU Xiao-Bo, ZHOU Jian-Yun, SUN Yu-Ling, XIE Zong-Qiang. Distribution and bio-ecological characteristics of Abies chensiensis, an endangered plant [J]. Biodiv Sci, 2004, 12(4): 419-426.
[13] LEI Bo, BAO WeiKai, JIA Yu, LIU JunHua. Ground bryophyte composition and synusia structures under young Pinus tabuliformis forests along the upper Minjiang River [J]. Biodiv Sci, 2004, 12(4): 410-418.
[14] ZHANG Kai-Mei, SHI Lei, LI Zhen-Yu. Fern allelopathy and its impact on biodiversity [J]. Biodiv Sci, 2004, 12(4): 466-471.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] Fang Rong-li. The Extract, Isolation and Identification of Fenorine in Plants[J]. Chin Bull Bot, 1984, 2(05): 18 -22 .
[2] Huang An-xin;Que Geng-sheng;Yuan Long-jiang;Xie Ben-song and Wei Jun-zhi. Amphiplasty of Hybrids Between Indica and Japonica Rice[J]. Chin Bull Bot, 1991, 8(02): 26 -30 .
[3] Zifen Wang;Yi Ren. Advances in the Study of the Angiosperm Ovule[J]. Chin Bull Bot, 2007, 24(01): 49 -59 .
[4] Jiang Shu. An Introduction on Advances of Botany in Japan[J]. Chin Bull Bot, 1984, 2(01): 67 -70 .
[5] YANG Lei ZHAO Yun-Yun HE Yi-Kun. The Molecular Mechanism of Endoreduplication[J]. Chin Bull Bot, 2004, 21(03): 280 -287 .
[6] . [J]. Chin Bull Bot, 1992, 9(增刊): 101 -102 .
[7] Shang Liu Xiangru Liao Jianguo Zhang Huijuan Miao. Purification of an Antifreeze Protein from Ligustrum lucidum Leaves and Its Partial Characteristics[J]. Chin Bull Bot, 2007, 24(04): 505 -510 .
[8] Pu Xun. Identification and Analysis on the Category of the Angiosperm''s Fruits[J]. Chin Bull Bot, 1995, 12(增刊): 78 -80 .
[9] . [J]. Chin Bull Bot, 1994, 11(专辑): 62 .
[10] Fang Hong-jun and Wang Guan-lin. Study on Shoot Proliferation of Fine Strain (13-38) of Sweet Cherry[J]. Chin Bull Bot, 1989, 6(02): 99 -103 .