[1]万欣,何小洋,芮雯奕,等.榉树等11个树种根系土壤抗剪切能力的研究[J].江苏林业科技,2020,47(01):42-45.[doi:10.3969/j.issn.1001-7380.2020.01.008]
　Wan Xin,He Xiaoyang,Rui Wenyi,et al.Studies on rhizospheric soil′s shear resistances of Zelkova serrata and other 10 tree species[J].Journal of Jiangsu Forestry Science &Technology,2020,47(01):42-45.[doi:10.3969/j.issn.1001-7380.2020.01.008]
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榉树等11个树种根系土壤抗剪切能力的研究()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第47卷
期数:
2020年01期
页码:
42-45
栏目:
试验研究
出版日期:
2020-03-22

文章信息/Info

Title:
Studies on rhizospheric soil′s shear resistances of Zelkova serrata and other 10 tree species
文章编号:
1001-7380（2020）01-0042-04
作者:
万欣1; 何小洋2; 芮雯奕3; 王磊1; 季永华1; 张纪林1
1.江苏省林业科学研究院， 江苏南京211153；
2.东台市农业技术推广中心果树站， 江苏东台224200；
3.江苏省科学技术情报研究所， 江苏南京210042
Author(s):
Wan Xin1; He Xiaoyang2;  Rui Wenyi3;  Wang Lei1; Ji Yonghua1;  Zhang Jilin1
1.Jiangsu Academy of Forestry，Nanjing 211153，China；
2.Dongtai Agricultural Technique Extension Center,Dongtai 224200, China;
3.Jiangsu Institute of Science & Technology Information, Nanjing 210042, China
关键词:
根系; 抗剪切; 生物量; 土壤; 树种
Keywords:
Root system; Shear resistance; Biomass;  Soil;  Tree species
分类号:
S152.9；S792
DOI:
10.3969/j.issn.1001-7380.2020.01.008
文献标志码:
A
摘要:
强大的植物根系不仅可以从土壤中吸收植物生长所必须的水分和养分，而且对于改良土壤的结构和成分，增强土壤的抗剪切能力有着重要的作用。该文通过测定苏柳8-26、苏柳9-6、苏柳172、苏柳795、枫香树、木荷、乌桕、红叶石楠、鄂西红豆、美国梧桐、榉树等11个树种根系的生物量以及土壤抗剪切力，研究各树种根系对土壤抗剪切力的影响。结果显示，根径≤1mm的树种根系中，美国梧桐的生物量最多，达到6 g/dm3左右，苏柳9-6的根系生物量最小，仅为2 g/dm3左右；根径>1mm的树种根系中，美国梧桐生物量最大，达到16 g/dm3，苏柳9-6的根系生物量最小，仅为3.8 g/dm3。榉树、苏柳9-6、红叶石楠和苏柳172根系土壤的抗剪切力最大，达到60 kPa左右；而苏柳8-26根系土壤的抗剪切力最小，仅为40 kPa。综合比较认为，榉树、苏柳9-6、红叶石楠和苏柳172根系土壤的抗剪切能力较好。
Abstract:
Strong plant roots can not only absorb water and provide nutrients necessary for the growth from the soil, but also play an important role in improving the structure and composition of soil and enhancing soil shear resistance. In this paper, through measuring the root biomass and soil shear resistance of 11 tree species such as Salix jiangsuensis ‘J8-26’, ‘J9-6’, ‘J172’, ‘J795’, Liquidambar formosana, Schima superba, Sapium sebiferum, Photinia × fraseri Dress, Ormosia hosiei Hemsl., Platanus occidentalis and Zelkova serrata, the effects of their roots on soil shear resistance were studied. The results showed that among those of root system with root diameter ≤1mm, P. occidentalis had the most biomass (about 6 g/dm3), but S. jiangsuensis ‘J9-6’had the smallest root biomass (about 2 g/dm3). Among the root system with root diameter >1mm, the root biomass of P. occidentalis was the largest, reaching 16 g/dm3 while that of S. jiangsuensis ‘J9-6’ was the smallest, only 3.8 g/dm3.In terms of soil shear resistance, Z. serrata, S. jiangsuensis ‘J9-6’, P. × fraseri Dress and S. jiangsuensis ‘J172’ got the highest, reaching about 60 kPa. However, the shear resistance of S.jiangsuensis ‘J8-26’ was the smallest, which was only 40 kPa.It was concluded that the shear resistances of Z. serrata，S. jiangsuensis ‘J9-6’, P. × fraseri Dress and S. jiangsuensis ‘J172’ were rather better.

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备注/Memo

备注/Memo:
收稿日期：2019-08-20;修回日期：2019-09-26
基金项目：江苏省农业科技自主创新资金项目“苏北杨树农田林网更新改造技术创新与集成示范”（CX(18)2032）；中央财政林业科技推广示范资金项目“长江河滩湿地修复与生态防护林营建技术推广示范”（苏[2019]TG01）；江苏省林业科技创新与推广项目“江苏长江沿岸造林绿化模式构建技术集成与示范”（LYKJ[2019]01）
作者简介：万欣 (1983- ), 女，山东济宁人，高级工程师，博士。主要从事森林土壤生态学的研究工作。
更新日期/Last Update: 2020-04-15