天山北坡两种退化梯度下伊犁绢蒿种群空间分布的点格局分析

草业学报 ›› 2009, Vol. 18 ›› Issue (5): 142-149.

天山北坡两种退化梯度下伊犁绢蒿种群空间分布的点格局分析

鲁为华^1,2,3,朱进忠^1,2*,王东江¹,靳瑰丽^1,2,余博¹

1.新疆农业大学草业与环境科学学院,新疆乌鲁木齐 830052;
2.新疆草地资源与生态实验室,新疆乌鲁木齐 830052;

3.石河子大学动物科技学院,新疆石河子 832003

收稿日期:2008-10-29 出版日期:2009-10-20 发布日期:2009-10-20
作者简介:鲁为华(1976-),男,新疆奇台人,讲师,在读博士。E-mail:winnerlwh@tom.com
基金资助:
新疆草地资源与生态重点实验室开放课题(XJDX0209-2007-03)资助

Point pattern analysis of Seriphidium transiliense populations under two degradation gradients in the Northern Tianshan Mountains

LU Wei-hua^1,2,3, ZHU Jin-zhong^1,2, WANG Dong-jiang¹, JIN Gui-li^1,2, YU Bo¹

1.College of Pratacultural and Environmental Science, Xinjiang Agricultural University, Urumqi 830052,
China;
2.Xinjiang Key Laboratory of Grassland Resources and Ecology, Urumqi 830052, China;

3.The College of Animal Technology &
Science, Shihezi University, Shihezi 832003, China

Received:2008-10-29 Online:2009-10-20 Published:2009-10-20

摘要/Abstract

摘要： 采用Ripley’s K函数对重度和极度退化2个区域的伊犁绢蒿种群进行了空间格局及关联分析。结果表明,在20 m的一系列空间尺度上,重度退化区域的绢蒿种群总体上强烈偏离随机分布呈聚集分布,聚集强度在不同尺度上有所变化,在一系列空间尺度上出现明显的“聚集波”现象。而极度退化区域内绢蒿种群则在小尺度内呈聚集分布,到达聚集分布的临界值时则转入随机分布。进一步对不同大小级绢蒿进行了分析,在重度退化区域内,1、2级大小个体均呈聚集分布,但形体较大的植株聚集程度减弱。在极度退化区域内,1级大小个体在小尺度范围内呈聚集分布,而随着尺度增加转为随机或者均匀分布,2级大小个体则为随机分布。通过不同大小级个体的空间关联分析表明,2种退化梯度下,2个大小级的绢蒿群体在小尺度范围内均表现出正关联,但随着尺度的增加关联性逐渐减弱,且二者在产生正关联的尺度范围上有所差别。

Abstract: Ripley’s K function was used to analyse spatial patterns and association of S. transiliense populations in severe and extreme degradation regions. In a 20 m series spatial scale, the S. transiliense population was usually characterized by nonrandom (clumped) distribution in a seriously degraded region. The clumped intensity was different and showed a “clumped wave” phenomenon on a different scale. The S. transiliense population was usually characterized a by clumped distribution on a small-scale in an excessively degraded region, but when it reached the threshold of the clumped distribution, then it shifted to a random distribution. Analysis of the spatial association of two sizes of S. transiliense showed that the size 2 individuals had a clumped distribution in seriously degradation regions, but the clumped intensity of the larger individuals was weaker. The size 1 had a small-scale clumped distribution in the badly degradation region, with a shift to random or regular distribution with increase of the spatial scale. Size 2 had a random distribution. According to spatial association analysis, the two sizes of S. transiliense populations had a positive small-scale association in two degradation gradients, but the association waned with an increase of scale, and the scope of the scale was different when the two sizes of populations represent a positive association.

中图分类号:

Q948.12⁺1

鲁为华,朱进忠,王东江,靳瑰丽,余博. 天山北坡两种退化梯度下伊犁绢蒿种群空间分布的点格局分析[J]. 草业学报, 2009, 18(5): 142-149.

LU Wei-hua, ZHU Jin-zhong, WANG Dong-jiang, JIN Gui-li, YU Bo. Point pattern analysis of Seriphidium transiliense populations under two degradation gradients in the Northern Tianshan Mountains[J]. Acta Prataculturae Sinica, 2009, 18(5): 142-149.

参考文献

[1]Levin S A. The problem of pattern and scale ecology.Ecology, 1992,73:1943-1967.
[2] 张金屯.植物种群空间分布的点格局分析.植物生态学报,1998,22:344-349.
[3] 吕一河,傅伯杰.生态学中的尺度及尺度转换方法.生态学报,2001,21:2096-2105.
[4]Manuel C M.Ecology: Concept and Application. Beijing: Science Press&McGraw Hill, 2000.
[5] Wiens J A.Spatial scaling in ecology.Functional Ecology,1989,3(4):385-397.
[6] 张娜.生态学中的尺度问题:尺度上推.生态学报,2007,27(10):2340-2355.
[7] Andersen M. Spatial analysis of two species interaction.Oecologia, 1992,91:134-140.
[8] Dale M R T, Powell R D. A new method for characterizing point patterns in plant ecology.Journal of Vegetation Science, 2001,12:597-608.
[9] 杨洪晓,张金屯,吴波,等.毛乌素沙地油蒿种群点格局分析.植物生态学报, 2006, 30(4): 563-570.
[10] Brisson J, Reynolds J F.The effects of neighbors on root distribution a creosotebush (Larrea tridentata) population.Ecology, 1994,75:1693-1702.
[11] 刘振国,李镇清.不同放牧强度下冷蒿种群的小尺度分布格局.生态学报, 2004,24(2):227-234.
[12] Zhao W Y, Li J L, Qi J G.Changes in vegetation diversity and structure in response to heavy grazing pressure in the northern Tianshan Mountains China. Journal of Arid Environments,2006, (4): 21-33.
[13] 赵万羽.新疆草地资源的劣化、原因及治理对策.草业科学, 2002,19(2):19-22.
[14] 刘长娥,许鹏,安沙舟.土质温性荒漠草地植物生育节律分析.新疆农业科学,2006,43(1):11-15.
[15] 张连义.伊犁绢蒿种子天然种衣吸水保水性能研究.植物学报,1998,40(8):775-777.
[16] 孙会忠,宋月芹,贺学礼.绢蒿属8种植物果实微形态特征及其分类学意义.武汉植物学研究,2007,25(5): 440-444.
[17] 刘洪来,朱进忠,靳瑰丽.伊犁绢蒿荒漠不同退化阶段草地植物多样性分析.新疆农业科学,2007,44(5):632-636.
[18] 王彩虹.不同退化阶段下伊犁绢蒿荒漠草地土壤养分变化分析.乌鲁木齐:新疆农业大学硕士学位论文,2007.
[19]孙宗玖,安沙舟,许鹏.伊犁绢蒿体内可塑性营养物质动态变化及分配特征的研究.草业学报,2008,17(2):151-156.
[20]孙宗玖,安沙舟,许鹏.伊犁绢蒿构件动态变化研究.草地学报,2007,15(5):457-458.
[21] 刘洪来,朱进忠,靳瑰丽,等.伊犁绢蒿荒漠草地退化演替序列的划分.新疆农业科学,2007,44(2):137-141.
[22] Kenkel N C. Pattern of self-thinning in Jack pine: Testingthe random mortality hypothesis.Ecology, 1988,69:1017-1024.
[23] Manly B F J. Randomization, Bootstrap and Monte-Carlo Methods in Biology (2nd edn). London: Chapman and Hall, 1997.
[24] 刘振国,李镇清,Ivan N,等. 糙隐子草种群在不同放牧强度下的小尺度空间格局. 草业学报,2005,14(1):11-17.
[25] 李先琨,向悟生,欧祖兰,等. 濒危植物南方红豆杉种群克隆生长空间格局与动态.云南植物研究,2003,25:625-632.
[26] 孙学刚,肖雯,贾恢先.疏勒河中游刚毛柽柳盐漠的群落结构、种群空间格局及种间联结性的研究.草业学报,1998,7(2):10-17.
[27]邰建辉,王彦荣,陈谷.无芒隐子草种子萌发、出苗和幼苗生长对土壤水分的响应.草业学报,2008,17(3):105-110.
[28] 黄晓霞,江源,刘全儒,等. 小五台亚高山草甸植物种分布的生境条件解释.草业学报,2007,16(6):7-13