| 生物土壤与生态 |
|
|
|
|
| Reproductive Allocation of Artemisia ordosica in Replanted Area for Sand Fixation in Shapotou Region |
FENG Li1,2, ZHANG Jing-guang1, ZHANG Zhi-shan1, ZHENG Jing-gang1, SONG Wei-min1,2
|
| 1.Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China; 2.Graduate School of the Chinese Academy of Science, Beijing 100039, China |
|
|
|
|
Abstract A field experiment on the reproductive allocation of sub-shrub Artemisia ordosica was carried out on the re-vegetated areas in Shapotou of Tengger Desert. The results reflected that the weight of flowering shoots and flowers were growing fast, while the reproductive allocation was always approximately at 26% from Aug. to Oct. 2006. It was also found that individuals of Artemisia ordosica began to flower only after it reached a basal diameter of 0.5 cm. The reproductive allocation increased monotonically within a range of basal area sizes only, and a curvilinear, not linear, model could best delineate the relationship between reproductive allocation and plant size (indicated by basal diameter). The reproductive allocations and reproductive units of Artemisia ordosica were different in different re-vegetated areas which established in various time. The reproductive allocation, weight of flowering shoots and quantity of flowers in site re-vegetated in 1981 were significantly lower than the other three sites (1956, 1964, 1987), but the quantity of flowering shoots and size of flowers were almost same in the four sites. These suggested that the reproductive allocation and growth of reproductive units were controlled not only by fixation duration, but also by any other factors.
|
|
Received: 09 April 2007
Published: 20 May 2008
|
|
|
[1]苏智先,张素兰,钟章成.植物生殖生态学研究进展[J].生态学杂志,1998,17(1):39-46.
[2]张景光,张志山,王新平,等.沙坡头人工固沙区一年生植物小画眉草繁殖分配研究[J].中国沙漠,2005,25(2):202-206.
[3]Westley L C.The effect of inflorescence bud removal on tuber production in Helianthus tuberosus L.(Asteraceae)[J].Ecology,1993,74:2136-2144.
[4]张大勇.理论生态学研究[M].北京:中国高等教育出版社,2000:10-45.
[5]张景光,王新平,李新荣,等.荒漠植物生活史对策研究进展与展望[J].中国沙漠,2005,25(3):306-313.
[6]李金花,李镇清,刘振国.不同刈牧强度对冷蒿生长与资源分配的影响[J].应用生态学报,2004,15(3):408-412.
[7]苏智先,钟章成.四种大头茶种群生态学研究Ⅱ.种群生物量生殖配置格局研究[J].生态学报,1998,18(4):379-385.
[8]操国兴,钟章成,谢德体,等.不同群落中川鄂连蕊茶的生殖分配与个体大小之间关系的探讨[J].植物生态学报,2005,29(3):361-366.
[9]徐庆,刘世荣,臧润国,等.中国特有植物四合木种群的生殖生态特征——种群生殖值及生殖分配研究[J].林业科学,2001,37(2):36-41.
[10]Li Fengrui,Zhang Aisheng,Duan Shunshan,et al.Patterns of reproductive allocation in Artemisia halodendron inhabiting two contrasting habitats[J].Acta Oecologica,2005,28:57-64.
[11]李新荣,石庆辉,张景光,等.沙坡头地区人工植被演变过程中植物多样性变化的研究[J].中国沙漠,1998,18(增刊):23-29.
[12]李新荣,马风云,龙立群,等.沙坡头地区固沙植被土壤水分动态研究[J].中国沙漠,2001,21(3):217-221.
[13]陈应武,张志山,郑敬刚,等.沙漠人工植被地上部分生长动态[J].西北植物学报,2006,26(9):1819-1826.
[14]郑海雷,黄子琛,董学军.毛乌素沙地油蒿和牛心朴子生理生态学研究[J].植物生态学与地植物学学报,1992,16(3):197-207.
[15]杨洪晓,张金屯,吴波,等.油蒿对半干旱区沙地生境的适应及其生态作用[J].北京师范大学学报:自然科学版,2004,40(5):684-690.
[16]Obeso J R.The costs of reproduction in plants[ J ].New Phytologist,2002,155:321-348.
[17]操国兴,谢德体,钟章成,等.植物种群的生殖分配[J].四川林业科技,2003,24(6):25-29.
[18]Weiner J.The influence of competition on plant reproduction[C]∥Doust L L(ed).Plant Reproductive Ecology:Patterns and Strategies.Oxford:Oxford University Press,1988:228-245. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2008, Vol. 28 
