高施氮量对高寒矮嵩草甸主要类群和多样性及质量的影响

doi:10.11733/j.issn.1007-0435.2002.01.002

›› 2002, Vol. 10 ›› Issue (1): 7-17.DOI: 10.11733/j.issn.1007-0435.2002.01.002

高施氮量对高寒矮嵩草甸主要类群和多样性及质量的影响

沈振西¹, 陈佐忠², 周兴民¹, 周华坤¹

1. 中国科学院西北高原生物研究所, 西宁, 810001;
2. 中国科学院植物研究所, 北京, 100093

收稿日期:2001-05-25 修回日期:2001-10-25 出版日期:2002-02-15 发布日期:2002-02-15
作者简介:沈振西(1963- ),汉族,副研究员,在职博士生,主要从事草地生态学研究,已发表科研论文20余篇
基金资助:
国家重点基金研究发展规划项目(G1998040803-4)、中国科学院知识创新工程项目(KSCX2-1-07)和中国科学院海北站基金项目资助

Responses of Plant Groups, Diversity and Meadow Quality to High-rate N Fertilization on Alpine Kobresia humilis Community

SHEN Zhen-xi¹, CHEN Zuo-zhong², ZHOU Xing-min¹, ZHOU Hua-kun ¹

1. Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810001, China;
2. Institute of Botany, Chinese Academy of Sciences, Beijing 100093 China

Received:2001-05-25 Revised:2001-10-25 Online:2002-02-15 Published:2002-02-15

摘要/Abstract

摘要： 研究高寒矮嵩草草甸高强度施氮试验(150和300kgN/hm²)对不同植物类群的影响.结果表明,禾草类植物的反应较大,其综合优势比呈明显增大趋势,非豆科杂草次之,莎草类和豆科杂草的反应不显著.增施氮肥能明显降低矮嵩草草甸的植物多样性,其草甸质量指数以施氮150 kg/hm²最高,过量施氮(300/hm²)并不再提高草甸质量.其地上生物量对施氮的反应比多样性和草甸质量指数的变化滞后,地上生物总量在施氮后明显增加,其中禾草类明显增加,杂类草则明显降低.7月的降水量及其分布对施氮的效果影响较大.土壤水分状况对施肥效果十分重要.

关键词: 高寒矮嵩草草甸, 施氮, 多样性, 草甸质量, 地上生物量

Abstract: The experiment with three levels of N fertlizer (0.150 and 300kg N/hm²) was conducted for three years at alpin Kobresia humilis meadow to study responses of different plant groups and some species. The response of grasses was more significance than Non leguminous forbs to nitrogen addition. The synthetic dominated ratio (SDR) of grasses increased, and that of non leguminous forbs decreased with the increase of nitrogen, whereas the SDR of sedges and leguminous forbs were not significantly affected by N fertilizer. Plant diversity decreased and forage quality increased with the increase of nitrogen. Index of meadow quality (IMQ) was the highest at 150kg N/hm² plot, and showed no significant difference between 150 and 300kg N/hm² plot. Excessive nitrogen application did not improve the IMQ. Response of above ground biomass of plant groups was lagged when compared with plant diversity and IMQ. Total above ground biomass was significant increased with the nitrogen application. There were different responses of above ground biomass among plant groups to the nitrogen application. The results showed that the above ground biomass of grasses was significantly increased with N fertilizer application, and that of forbs was decreased. The responses of plant grounps to nitrogen application were more affected by precipitation and its distribution in July, therefore, the status of soil water after nitrogen application was a key factor to the responses of plant groups.

Key words: Alpine Kobresia humilis meadow, Nitrogen fertilization, Diversity, Meadow quality, Above ground biomass

中图分类号:

S812.4

沈振西, 陈佐忠, 周兴民, 周华坤. 高施氮量对高寒矮嵩草甸主要类群和多样性及质量的影响[J]. , 2002, 10(1): 7-17.

SHEN Zhen-xi, CHEN Zuo-zhong, ZHOU Xing-min, ZHOU Hua-kun . Responses of Plant Groups, Diversity and Meadow Quality to High-rate N Fertilization on Alpine Kobresia humilis Community[J]. , 2002, 10(1): 7-17.

参考文献

[1] Shaver G R, Chapin lll F S. Effect of fertilizer on production and biomass of tussock tundra, Alaska. USA[J]. Arctic and Alpine Research, 1985, 18:2611～268.
[2] Chapin lll F S, Shaver C R. Individualistic growth response of tundra plant species to environmental manipulations in the field[J]. Ecology, 1985, 66:564～576.
[3] Wilson S D, Tilman D. Interactive effects of fertilization and disturbance on community structure and resource availability in an old-field community[J]. Oecologia,1991, 88:61～71.
[4] Samuel M J, Hart A R. Nitrogen fertilization, botanical composition and biomass production on mixed-grass rangeland[J]. Journal Range Management. 1998,51:408～415.
[5] Bliss L C. Arctic and alpine plant life cycles[J]. Annual Review of Ecology and Systematics. 1971, 2:405～438.
[6] Hozmann H P, Haselwandter K. Contribution of nitrogen fixation to nitrogen nutrition in an alpine sdege connunity(Caricetum curvulae)[J]. Ocologia, 1988, 76:298～302.
[7] Bowman W D, Theodose T A, Schardt J C, Conant R T. Constraints of nutrient availability on primary production in two alpine tundra communities[J]. Ecology, 1993, 74:2085～2097.
[8] Theodose T A, Bowman W D. Nutrient availability, plant abundance, and species diversity in two alpine tundra communities[J]. Ecology, 1997,78(6):1861～1872.
[9] 鲍新奎,赵保莲. 土壤氮、磷养分对矮嵩草草甸初级生产力影响的初步研究[A]. 见:中国科学院西北高原生物研究所编. 高寒草甸生态系统国际学术讨论会论文集[C]. 北京:科学出版社,1989,169～175.
[10] 张松林,周兴民. 施肥对矮嵩草草甸草场地上生物量的影响[J]. 高原生物学集刊. 1986,5:7～12.
[11] 杨福囤. 高寒草甸生态系统定位站自然概况[A]. 见:夏武平主编.高寒草甸生态系统[C]. 北京:科学出版社. 1982,1:1～8.
[12] 李英年. 海北高寒草甸生态系统定位站气候概述[J]. 资源生态环境网络研究动态. 1998,9:30～33.
[13] 姜恕. 草地生态学研究方法[M]. 北京:农业出版社,1988.4～47.
[14] 张大勇,王刚,杜国祯. 甘南山地草原人工草场的演替[J]. 植物生态学与地植物学学报. 1990,14:103～109.
[15] 史顺海,杨福囤,陆国泉. 矮嵩草草甸主要植物种群物候观测和生物量测定[A]. 见:中国科学院西北高原生物研究所编. 高寒草甸生态系统国际学术讨论会文集[C]. 北京:科学出版社,1989.49～60.
[16] 王启基,杨福囤. 高寒草甸C3、C4植物叶片解剖特征初步研究[J]. 高原生物学季刊, 1985,4:1～10.
[17] Aerts R. Nitrogen use efficiency in relation on nitrogen availability and plant community compositon[A]. In: Lambers H, Causes and consequences of variation in growth rate and productivity of higher plant [C]. Netherlaands: SPB Academic Publishing. 1989. 285～297.
[18] Chapin F S lll. The mineral nutrition of wild plants[J]. Annual Review of Ecology and Systematics. 1980, 11:233～260.
[19] Bowman W D, Conant T A. Shoot growth dynamics and photosynthetic response to increased nitrogen availability in the alpine willow, Salix glauca[J]. Oecologia, 1994,97:93～99.
[20] Goldberg D E, Miller T E. Effects of different resource additions on species diversity in an annual plant community[J]. Ecology, 1990, 71:213～225.
[21] Carson W P, Barrett G W. Succession in oil-field plant communities:effects of contrasting types of nutrient enrichment[J]. Ecology, 1998, 69:984～994.
[22] Lipson D A, Bowman W D, Monson R K. Luxury uptake and storage of nitrogen in the rhizomatous alpine herb, Bistorta bistortoides[J]. Ecology, 1996, 77:1277～1285

高施氮量对高寒矮嵩草甸主要类群和多样性及质量的影响

Responses of Plant Groups, Diversity and Meadow Quality to High-rate N Fertilization on Alpine Kobresia humilis Community

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