WAN Haixia,CAI Jinjun,GUO Yongzhong,et al.Characteristics of Root Distributions of Typical Herbs in Loess Hilly Region of Southern Ningxia[J].Research of Soil and Water Conservation,2020,27(04):149-156,163.
宁夏南部黄土丘陵区典型草本根系分布特征
- Title:
- Characteristics of Root Distributions of Typical Herbs in Loess Hilly Region of Southern Ningxia
- 文章编号:
- 1005-3409(2020)04-0149-08
- Keywords:
- loess hilly region; herb roots; root length density; root surface area density; root-soil combination
- 分类号:
- Q944.54; S157
- 文献标志码:
- A
- 摘要:
- 为揭示宁夏南部黄土丘陵区几种典型草本根系分布特征,采用根钻法和Win RHIZO根系分析系统对草本(百里香、星毛委陵菜、猪毛蒿、长芒草)整根特点、0—30 cm土层分布特征以及表层根—土结合体状况进行了定量分析。结果表明:(1)各草本根系除长芒草外,大部分具有发达的侧根,细根绝大部分位于土壤浅层。(2)4种草本0—30 cm土层根长密度为2.38～23.56 mm/cm3,各径级根以≤0.5 mm根最大,占总根长密度的73.4%～86.4%。根表面积密度为2.65～28.83 mm2/cm3,百里香以≤0.5 mm根,猪毛蒿以2～3.5 mm根最大,其余草本各级根分布相对均匀。根体积密度为0.61～49.36 mm3/cm3,各径级根百里香以2～3.5 mm根,猪毛蒿以0.5～1 mm根最大,其他草本数值很小。随根径增加各草本的根长密度降低,根体积密度先增后降。(3)草本根长密度主要集中在0—20 cm土层(88.3%～100%),根表面积密度百里香、星毛委陵菜集中在0—10 cm(81.3%～99.3%),长芒草、猪毛蒿集中在0—20 cm(90.9%～100%),两个参数值均随土层深度的增加而减小。(4)根土结合体定量分析认为,百里香、星毛委陵菜、长芒草3种草本固结表层土壤效果较好。
- Abstract:
- To reveal the distribution characteristics of several typical herb roots in the loess hilly region of southern Ningxia, the bulk root characteristics, root distribution characteristics in 0—30 cm soil layer and root-soil combination in surface soil were quantitatively analyzed by using root drilling method and Win RHIZO root system for different kinds of herbs(Thymus mongolicus Ronn., Potentilla acaulis L., Artemisia scoparia, Stipa bungeana Trin.). The results show that:(1)except for the Stipa bungeana, most of the herb roots have developed lateral roots, and most of the fine roots are located in the shallow layer of soil;(2)the root length densities of the four herbs in 0—30 cm layer range from 2.38 mm/cm3 to 23.56 mm/cm3; the root length density of roots with 0～0.5 mm in diameter is the greatest, accounting for 73.4%～86.4% of the total root length density; the root surface area densities range from 2.65 m2/cm3 to 28.83 m2/cm3, the root surface area densities of the roots of the Thymus mongolicus Ronn. with 0～0.5 mm in diameter and roots of the Artemisia scoparia with 2～3.5 mm in diameter are the largest, and the root surface area densities of the other roots evenly distribute; the root volume densities range from 0.61 m3/cm3 to 49.36 m3/cm3, root volume densities of the roots of the Thymus mongolicus Ronn with 2～3.5 mm in diameter and the roots of Artemisia scoparia with 0.5～1 mm in diameter are the largest, and root volume densities of the other herb values are small; as the root diameter increases, the root length density of all herb decreases, and the root volume density increases first and then decreases;(3)the herb root length density of all plots mainly concentrate in 0—20 cm soil layer(88.3%～100%), the root surface area densities of Thymus mongolicus Ronn.,Potentilla acaulis L. concentrate in 0—10 cm soil layer(81.3%～99.3%), the root surface area densities of Stipa bungeana Trin., Artemisia scoparia concentrate in 0—20 cm soil layer(90.9%～100%); the herb root length density and the root surface area density decrease with the increase of soil layer;(4)quantitative analysis of root-soil combination shows that three herbs, Thymus mongolicus Ronn, Potentilla acaulis L., Stipa bungeana Trin. are effective in consolidating surface soil.
参考文献/References:
[1] 韩新生,许浩,蔡进军,等.宁南黄土丘陵区3种典型林分的结构与水文影响比较[J].水土保持学报,2018,32(6):192-199.
[2] 蔡进军,李生宝,蒋齐,等.宁南黄土丘陵区典型水保工程措施对土壤入渗性能的影响[J].水土保持通报,2010,30(1):22-26.
[3] 杨永辉,赵世伟,雷廷武,等.宁南黄土丘陵区不同植被下土壤入渗性能[J].应用生态学报,2008,19(5):1040-1045.
[4] 苏静,赵世伟,马继东,等.宁南黄土丘陵区不同人工植被对土壤碳库的影响[J].水土保持研究,2005,12(3):50-52,179.
[5] 李士成.宁南黄土丘陵区土壤侵蚀与水土保持[J].干旱区资源与环境,1993,7(3):90-92.
[6] 赵世伟,苏静,杨永辉,等.宁南黄土丘陵区植被恢复对土壤团聚体稳定性的影响[J].水土保持研究,2005,12(3):27-28,69.
[7] 王月玲,王思成,蔡进军,等.半干旱黄土丘陵区不同整地方式下退化草地植物群落恢复特征[J].水土保持通报,2016,36(5):80-84.
[8] 程洪,谢涛,唐春,等.植物根系力学与固土作用机理研究综述[J].水土保持通报,2006,26(1):97-102.
[9] 王元战,张智凯,马殿光,等.植物根系加筋土剪切试验研究综述[J].水道港口,2012,33(4):330-336.
[10] 孛胜男,王云琦,马超,等.基于试验与模型的构树根系固土效果量化的研究[J].中国水土保持科学,2019,17(1):24-30.
[11] 朱锦奇,王云琦,王玉杰,等.根系主要成分含量对根系固土效能的影响[J].水土保持通报,2014,34(3):166-170,177.
[12] 李生宝,蒋齐,赵世伟,等.半干旱黄土丘陵区退化生态系统恢复技术与模式[M].北京:科学出版社,2011.
[13] 梁江同.几种灌木根系分布对高速公路生态边坡影响[D].南京:南京林业大学,2010.
[14] 李建兴,何炳辉,谌芸,等.不同护坡草本植物的根系分布特征及其对土壤抗剪强度的影响[J].农业工程学报,2013,29(10):144-152.
[15] 嵇晓雷,夏光辉,张海亚.紫穗槐根系形态与固土护坡效应研究[J].湖北林业科技,2016,45(1):16-19.
[16] 黄建辉,韩兴国.森林生态系统根系生物量研究进展[J].生态学报,1999,19(2):270-277.
[17] 朱广龙,邓荣华,魏学智.酸枣根系空间分布特征对自然干旱梯度生境的适应[J].生态学报,2016,36(6):1539-1546.
[18] 李鹏,李占斌,郝明德,等.黄土高原天然草地根系主要参数的分布特征[J].水土保持究,2003,10(1):144-149.
[19] 李鹏,李占斌,澹台湛..黄土高原退耕草地植被根系动态分布特征[J].应用生态学报,2005,16(5):849-853.
[20] 陈云明,刘国彬,徐炳成.黄土丘陵区人工沙棘林水土保持作用机理及效益[J].应用生态学报,2005,16(4):595-599.
[21] 高英旭.海州露天煤矿排土场复垦区植物根系分布特征研究[J].干旱区资源与环境,2019,33(4):124-128.
[22] 刘国彬.黄土高原草地土壤抗冲性及其机理研究[J].水土保持学报,1998,4(1):93-96.
[23] 葛芳红,周正朝,刘俊娥.黄土丘陵区4种典型植物根系分布特征及对土壤分离速率的影响[J].水土保持学报,2017,31(6):164-169.
[24] 魏飒,任树梅,杨培岭,等.围场地区紫花苜蓿土壤水分动态变化与根系分布状况研究[J].农业工程科学,2006,22(5):448-451.
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[6]关秀琦,邹厚远,鲁子瑜,等.黄土高原草地持续发展研究──Ⅲ．补播柠条和兴安胡枝子建立永久放牧草地试验[J].水土保持研究,1994,1(03):65.
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[7]程积民.宁南黄土丘陵区立体型高产半人工草地研究[J].水土保持研究,1996,3(01):38.
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Hou Xilu,Bai Gangshuan,Cao Qingyu.Dynamic Observation of Soil Moisture on Arbor and Shrubbery in Sinking Lands in Loess Hilly Region[J].Research of Soil and Water Conservation,1996,3(04):57.
[10]安兴东,梁银丽,Kazuyoshi Takeda.宁南黄土丘陵区国外麦类的引种[J].水土保持研究,1998,5(01):76.
An Xingdong,Liang Yinli,Kazuyoshi Takeda.Foreign Triticeae Introduction in the Loess Hilly Area of Southern Ningxia[J].Research of Soil and Water Conservation,1998,5(04):76.
备注/Memo
收稿日期:2019-07-18 修回日期:2019-09-02
资助项目:国家重点研发计划(2016YFC0501702); 国家科技支撑计划项目(2015BAC01B01); 宁夏自然科学基金(2018AAC03278,2019AAC03289); 国家自然科学基金(41561058)
第一作者:万海霞(1982—),女,宁夏平罗人,助理研究员,主要从事生态恢复与水土保持研究。E-mail:whx3802@126.com
通信作者:蔡进军(1976—),男,宁夏平罗人,研究员,主要从事黄土丘陵区流域生态修复研究。E-mail:ncyccai@163.com