Root Distribution of Sand-Binding Vegetation in the Southeastern Tengger Desert, China

doi:10.7522/j.issn.1000-694X.2013.00070

JOURNAL OF DESERT RESEARCH

2013, Vol. 33

Issue (2): 515-521 DOI: 10.7522/j.issn.1000-694X.2013.00070

Root Distribution of Sand-Binding Vegetation in the Southeastern Tengger Desert, China

CHEN Yong-le1,2, ZHANG Zhi-shan1, WU Pan1,2, HUI Rong1, HU Rui1, GAO Yan-hong1

1.Shapotou Desert Research and Experiment Station, Cold and Arid Regions Enviromental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

Download:

PDF (3197KB)
Export: BibTeX | EndNote (RIS)

Abstract

The main objective of the present study was to assess the root system distribution in 0-3.0 m profile at revegetated areas established in 1964, 1981 and 1990 at the southeastern edge of the Tengger Desert, respectively. The experiment was conducted in August, 2010. We chose moving sand dune and the nearby natural vegetation area as control. Soil core was used for collecting roots. Significant difference were found in root weight density and root length density of total live roots, live fine roots (<1 mm), total dead roots and dead fine roots (<1 mm) per unit land area (m2) between different vegetation areas. The root weight density and root length density of total live roots in moving sand area, the revegetated areas that were established in 1990, 1981, 1964 and natural vegetation area were 2.9±2.2, 164.7±46.5, 461.3±83.6, 440.4±81.8 g·m-2 and 350.0±132.5 g·m-2, respectively. Meanwhile, the root weight density and root length density of total dead roots were 4.9±2.8, 58.7±16.8, 390.9±57.9, 492.5±252.2 g·m-2 and 214.4±29.9 g·m-2, respectively. The root length density showed the similar tendencies. The root weight density and root length density per unit soil volume (m3) decreased with soil depths. Proportion of accumulated weight density and length density of live roots and live fine roots (<1 mm) in 0-1.0 m soil layer to the total live roots exceeded 70.0% in vegetation areas. The maximum proportion appeared in the natural vegetation area, while the smallest proportion was in the moving sand area with a value less than 25%. Similar trend has also been observed in the proportion of dead roots, however, the proportion slightly decreased. Proportion of rhizosheath to the total root biomass was instable. The maximum value was 94.3% in the moving sand area and minimum value was only 0.527% in the revegetated area established in 1981. The values in the revegetated areas established in 1964 and 1990 and the natural vegetation area were 29.9%, 70.3% and 58.9%, respectively.

Key words: sand-binding vegetation fine root live root dead root distribution

Received: 16 September 2012 Published: 06 November 2012

ZTFLH:

Q948.11



	Articles by authors
	CHEN Yong-le1
	2
	ZHANG Zhi-shan1
	WU Pan1
	2
	HUI Rong1
	HU Rui1
	GAO Yan-hong1

Cite this article:

CHEN Yong-le1,2, ZHANG Zhi-shan1, WU Pan1,2, HUI Rong1, HU Rui1, GAO Yan-hong1. Root Distribution of Sand-Binding Vegetation in the Southeastern Tengger Desert, China. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 515-521.

URL:

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00070 OR http://www.desert.ac.cn/EN/Y2013/V33/I2/515

[1]李新荣.干旱沙区土壤空间异质性变化对植被恢复的影响[J].中国科学(D辑:地球科学),2005,35(4):361-370.

[2]Li X R,Xiao H L,Zhang J G,et al.Long term ecosystem effect of sand-binding vegetation in the Tengger desert,northern China[J].Restoration Ecology,2004,12(3):376-390.

[3]Gill R A,Jackson R B.Global patterns of root turnover for terrestrial ecosystems[J].New Phytologist,2000,147:13-31.

[4]贺金生,王政权,方精云.全球变化下的地下生态学:问题与展望[J].科学通报,2004,49(13):1226-1233.

[5]黄刚,赵学勇,赵玉萍,等.科尔沁沙地两种典型灌木独生和混交的根系分布规律[J].中国沙漠,2007,27(2):239-243.

[6]秦艳,王林,张国盛,等.毛乌素沙地臭柏与油蒿群落细根生物量的季节动态及其空间变化[J].中国沙漠,2008,28(3):455-461.

[7]崔秀萍,刘果厚,张存厚.浑善达克沙地黄柳人工林根系分布及其生物量研究[J].中国沙漠,2011,31(2):447-450.

[8]木巴热克·阿尤普,陈亚宁,李卫红,等.极端干旱环境下的胡杨细根分布与土壤特征[J].中国沙漠,2011,31(6):1449-1458.

[9]李新荣,肖洪浪,刘立超,等.腾格里沙漠沙坡头地区固沙植被对生物多样性恢复的长期影响[J].中国沙漠,2005,25(2):173-181.

[10]刘媖心,李玉俊,杨喜林.沙生植物的根系[M]//流沙治理研究（二).银川:宁夏人民出版社:1991:185-209.

[11]张志山,樊恒文,赵金龙,等.沙漠人工植物群落根系分布及动态[J].中国沙漠,2006,26(4):637-643.

[12]Zhang Z S,Li X R,Wang T,et al.Distribution and seaconal dynamics of roots in a revegetated stand of Artemisia ordosica Kracsh.in the Tengger Desert(North China)[J].Arid Land Research and Management,2008,22:195-211.

[13]Zhang Z S,Li X R,Liu L C,et al.Distribution,biomass,and dynamics of roots in a revegetated stand of Caragana korshinskii in the Tengger Desert,northwestern China[J].Journal of Plant Research,2009,122:109-119.

[14]马阔东,高丽,闫志坚,等.库布齐沙漠不同类型沙地上植物群落根系研究[J].草业科学,2010,27(5):1-9.

[15]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):217-222.

[16]Li X R,Ma F Y,Xiao H L,et al.Long-term effects of revegetation on soil water content of sand dunes in arid region of Northern China[J].Journal of Arid Environments,2004,57:1-16.

[17]Li X R.Influence of variation of soil spatial heterogeneity on vegetation restoration[J].Science in China Series D,2005,48:2020-2031.

[18]李新荣,肖洪浪,刘立超,等.腾格里沙漠沙坡头地区固沙植被对生物多样性恢复的长期影响[J].中国沙漠,2005,25(2):173-181.

[19]Li X R,Jia X H,Long L Q,et al.Effects of biological soil crusts on seed bank,germination and establishment of two annual plant species in the Tengger Desert (North China)[J].Plant and Soil,2005,277:375-385.

[20]王俊明,张兴昌.退耕草地演替过程中植被根系的动态变化及其垂直分布[J].中国水土保持科学,2010,8(4):67-72.

[21]李新荣,张志山,王新平,等.干旱区土壤-植被系统恢复的生态水文学研究进展[J].中国沙漠,2009,29(5):845-852.

[22]Wang X P,Li X R,Xiao H L,et al.Effects of surface characteristics on infiltration patterns in an arid shrub desert[J].Hydrological Processes,2007,21(1):72-79.

[23]马玮,李春俭.植物的根鞘及其生态意义[J].世界农业,2007,4:55-56.

[24]兰州沙漠研究所沙坡头沙漠试验研究站.包兰铁路沙坡头段固沙原理与措施[M].银川:宁夏人民出版社,1991.

[25]周智彬,李培军.塔克拉玛干沙漠腹地人工绿地土壤中微生物的生态分布及其与土壤因子间的关系[J].应用生态学报,2003,14(8):1246-1250.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed