Quantity Characteristics of Root System of Two Shrubs for Soil and Water Conservation in Waste Dump

MA Hong-yan; GERILE; ZHAO Xing-hua; SI Qin; LIU Jun-yu

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Quantity Characteristics of Root System of Two Shrubs for Soil and Water Conservation in Waste Dump

- Quantity Characteristics of Root System of Two Shrubs for Soil and Water Conservation in Waste Dump
- Bulletin of Soiland Water Conservation Vol. 32, Issue 2, Pages: 165-168(2013)
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- Published：2013
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MA Hong-yan, GERILE, ZHAO Xing-hua, et al. Quantity Characteristics of Root System of Two Shrubs for Soil and Water Conservation in Waste Dump[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 165-168.
DOI：

MA Hong-yan, GERILE, ZHAO Xing-hua, et al. Quantity Characteristics of Root System of Two Shrubs for Soil and Water Conservation in Waste Dump[J]. Bulletin of Soiland Water Conservation, 2013, 32(2): 165-168. DOI：

摘要

以内蒙古自治区准格尔煤田黑岱沟露天矿排土场2种人工栽植的4龄水土保持灌木柠条和沙棘的根系为对象

通过研究根系数量特征

确定其代表根

为2种灌木根系的生物力学性质和抗蚀研究提供了基础数据和相关参数。代表根的确定将根系以0.5mm为1个径级进行分级

计算每个径级组的累计根数量、累计根长、累计根表面积和累计根干重等4个方面

取这4个值百分比相对较大的径级组作为各自的代表根。结果表明:柠条代表根径级为0～0.5mm

0.5～1mm

1～1.5mm;沙棘代表根径级是0.5～1mm和1～1.5mm。在根系固土抗蚀生物力学性质的研究中

建议在内蒙古准格尔露天矿排土场及相似地区柠条和沙棘2种水土保持灌木主要研究的根茎范围以其代表根径级为主要研究范围。

Abstract

The roots of two kinds of 4years old shrubs(Caragana microphylla Lam.and Hippophae rhamnoides Linn.)

which was artificially planted for soil and water conservation

were studied in the waste dumpof Strip Mine in Heidaigou.The roots quantity characteristics were examined.In addition

the biomechanicalproperties and corrosion studies were conducted on their representative roots to provide basic data and relatedparameters.The representative roots were selected according to the following procedures:(1)The root systems were divided into groups by an interval of 0.5mm;(2)The total root number

root length

surface area and dry weight were recorded and calculated for each group;(3)The representative roots were then selected as the group that had relatively high values in terms of the four parameters.The result showed thatthe representative roots levels were 0～0.5mm

0.5～1mm

1～1.5mm for Caragana microphylla Lam;and 0.5～1mm and 1～1.5mm for Hippophae rhamnoides Linn

respectively.It is suggested that the representative roots should be considered only if these two kinds of shrubs were studied in waste dump of StripMine in Heidaigou and other similar areas.

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Related Institution

College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Huhhot

College of Natural Resources and Environment, Northwest A&F University Yangling Shaanxi China

The State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University Yangling Shaanxi China

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