PDF Download

[1]DONG Shuili,LIU Enbin.Comparison of Leaf Functional Traits of Dominant Woody Plants on Shady Slope and Sunny Slope in the Loessial Hilly Region[J].Research of Soil and Water Conservation,2015,22(04):326-331.

Copy

Comparison of Leaf Functional Traits of Dominant Woody Plants on Shady Slope and Sunny Slope in the Loessial Hilly Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 04 Page number: 326-331 Column: Public date: 2015-08-28

Title:: Comparison of Leaf Functional Traits of Dominant Woody Plants on Shady Slope and Sunny Slope in the Loessial Hilly Region

Author(s):: DONG Shuili, LIU Enbin; Yan’an Vocational and Technical College, Yan’an, Shaanxi 712100, China

Keywords:: loess hilly region; slope aspect; dominant woody species; leaf functional traits

CLC:: Q945.78

DOI:: -

Abstract:: The differences of leaf functional traits (leaf mass per area, leaf water potential at turgor loss point, leaf carbon isotope composition δ¹³C and leaf N, P and K contents) of dominant woody plants on shady slope and sunny slope (Populus davidiana, Pinus tabulaeformis, Quercus liaotungensis and Robinia pseudoacacia growing on the shady slope, Vitex negundo, Prunus davidiana, Sorphora viciifolia and Rosa xanthina growing on the sunny slope) were compared in order to probe into the mechanism that plants adapt to different slope aspects. The results showed that:1) the dominant species on the sunny slope had higher leaf δ¹³C and K content in the dry season, indicating that higher water use efficiency and K accumulation are the major mechanisms of plant adaptation to the habitat on the sunny slope; 2) the variation of leaf functional traits of dominant woody species growing on the sunny slope was slighter compared to those growing on the shady slope, demonstrating the convergence of leaf functional traits of dominant woody species growing on the sunny slope; 3) Robinia pseudoacacia had the least leaf mass per area, the highest N, P and K contents and relatively higher leaf δ¹³C among eight species, reflecting its high photosynthetic capacity and water use efficiency, and the competitive strategy to survive. On the contrary, Pinus tabulaeformis had the highest leaf mass per area, the lowest δ¹³C, N, P and K contents, suggesting that it uses the defensive strategy to survive. The survival strategies of other six species are among the competitive and defensive spectrum.

References:: [1] Rosenberg N J, Blad B L, Verma S B. Microclimate:The Biological Environment[M]. New York:John Wiley & Sons Inc., 1983.
[2] 李勉,姚文艺,李占斌.黄土丘陵区坡向差异及其在生态环境建设中的意义[J].水土保持研究,2004,11(1):37-39.
[3] 朱秋莲,邢肖毅,张宏,等.黄土丘陵沟壑区不同植被区土壤生态化学计量特征[J].生态学报,2013,33(15):4674-4682.
[4] 李新娥.亚高寒草甸阳坡-阴坡梯度上植物功能性状及群落构建机制研究[D]. 兰州:兰州大学, 2011.
[5] Reich P B, Ellsworth D S, Walters M B, et al. Generality of leaf trait relationships:a test across six biomes[J]. Ecology,1999,80(6):1955-1969.
[6] Tyree M T, Hammel H T. The measurement of the turgor pressure and the water relations of plants by the pressure-bomb technique[J]. Journal of Experimental Botany,1972,23(1):267-282.
[7] Schulte P J, Hinckley T M. A comparison of pressure-volume curve data analysis techniques[J]. Journal of Experimental Botany,1985,36(10):1590-1602.
[8] 王林,冯锦霞,王双霞,等.干旱和坡向互作对栓皮栎和侧柏生长的影响[J].生态学报,2013,33(8):2425-2433.
[9] Wright I J, Reich P B, Westoby M. Strategy shifts in leaf physiology, structure and nutrient content between species of high-and low-rainfall and high-and low-nutrient habitats[J]. Functional Ecology,2001,15(4):423-434.
[10] Lamont B B, Groom P K, Cowling R M. High leaf mass per area of related species assemblages may reflect low rainfall and carbon isotope discrimination rather than low phosphorus and nitrogen concentrations[J]. Functional Ecology,2002,16(3):403-412.
[11] Wright I J, Reich P B, Cornelissen J H C, et al. Modulation of leaf economic traits and trait relationships by climate[J]. Global Ecology and Biogeography,2005,14(5):411-421.
[12] Lenz T I, Wright I J, Westoby M. Interrelations among pressure-volume curve traits across species and water availability gradients[J]. PhysiologiaPlantarum,2006,127(3):423-433.
[13] Bartlett M K, Zhang Y, Kreidler N, et al. Global analysis of plasticity in turgor loss point, a key drought tolerance trait[J]. Ecology Letters,2014,17(12):1580-1590.
[14] Farquhar G D, Ehleringer J R, Hubick K T. Carbon isotope discrimination and photosynthesis[J]. Annual Review of Plant Biology,1989,40(1):503-537.
[15] Marshall J D, Zhang J. Carbon isotope discrimination and water-use efficiency in native plants of the north-central rockies[J]. Ecology,1994,75(7):1887-1895.
[16] Hamerlynck E P, Huxman T E, McAuliffe J R, et al. Carbon isotope discrimination and foliar nutrient status of Larrea tridentata (creosote bush) in contrasting Mojave Desert soils[J]. Oecologia,2004,138(2):210-215.
[17] 史作民,程瑞梅,刘世荣.高山植物叶片δ¹³C的海拔响应及其机理[J].生态学报,2004,24(12):2901-2906.

Similar References:

Memo

Last Update: 1900-01-01