[1]叶邦宣,张深梅,阙利芳,等.不同郁闭度下香榧-多花黄精复合经营生长状况研究[J].浙江林业科技,2021,41(04):45-49.[doi:10.3969/j.issn.1001-3776.2021.04.007]
 YE Bang-xuan,ZHANG Shen-mei,QUE Li-fang,et al.Growth Traits of Torreya grandis ‘Merrillii’ and Polygonatum cyrtonema under Different Canopy Density[J].Journal of Zhejiang Forestry Science and Technology,2021,41(04):45-49.[doi:10.3969/j.issn.1001-3776.2021.04.007]
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不同郁闭度下香榧-多花黄精复合经营生长状况研究()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
41
期数:
2021年04期
页码:
45-49
栏目:
出版日期:
2021-08-01

文章信息/Info

Title:
Growth Traits of Torreya grandis ‘Merrillii’ and Polygonatum cyrtonema under Different Canopy Density
文章编号:
1001-3776(2021)04-0045-05
作者:
叶邦宣 1张深梅1阙利芳1林秀明1叶晓明1何祯2沈爱华2
(1. 松阳县自然资源和规划局,浙江松阳 323400;2. 浙江省林业技术推广总站,浙江 杭州 310020)
Author(s):
YE Bang-xuan1ZHANG Shen-mei1QUE Li-fang1LIN Xiu-ming1YE Xiao-ming1HE Zhen2SHEN Ai-hua2
(1. Songyang Natural Resources and Planning Bureau of Zhejiang, Songyang 323400, China; 2. Zhejiang Forestry Extension Station, Hangzhou 310020, China)
关键词:
香榧多花黄精郁闭度复合经营土壤养分
Keywords:
Torreya grandis ‘Merrillii’ Polygonatum cyrtonema canopy density interplanting soil nutrient
分类号:
S759.82
DOI:
10.3969/j.issn.1001-3776.2021.04.007
文献标志码:
A
摘要:
香榧Torreya grandis ‘Merrillii’ 林下套种多花黄精 Polygonatum cyrtonema 是目前普遍推广的高效复合经营 模式之一。本研究通过对香榧林0.5、0.7、0.9 三种郁闭度下香榧和多花黄精套种前和套种一年后的生长指标进行 测定分析和对比,以及对套种与未套种的香榧林的土壤养分进行检测比较,探讨郁闭度对香榧和多花黄精生长指 标的影响以及复合经营模式中两种作物的交互作用。结果表明,郁闭度为0.7 时,套种多花黄精的香榧的新梢生 长量、地径增长量、树高增长量、冠幅增长量和单株榧蒲产量相比未套种的香榧分别高出18.97%、14.18%、24.55%、 20.79%和40.00%;在0.7 郁闭度下,多花黄精的长势最好,香榧的各项生长指标及单株榧蒲产量均较好,复合经 营的综合效益最佳;套种多花黄精三年生根状茎一年后,香榧林地土壤的pH、有机质、全氮、碱解氮、全磷、速 效钾的含量分别增加了12.73%、52.86%、77.30%、96.90%、88.24%和27.57%,土壤有效磷和全钾的含量分别减 少了18.50%和24.57%,8 项指标的平均增加幅度为39.07%,远高于未套种多花黄精的土壤;套种多花黄精后, 土壤的各项养分含量和酸碱性得到了较大幅度的改善,有效的促进了香榧的生长。本研究为香榧林下套种多花黄 精的合理性提供了理论依据,对于香榧-多花黄精复合经营基地综合效益的提高具有重要意义。
Abstract:
In 2009, Torreya grandis ‘Merrillii’ grafted seedling were planted in Songyang, Zhejiang province. In October 2018, intercropping of Polygonatum cyrtonema under T. grandis ‘Merrillii’ stand was carried out with canopy density of 0.5, 0.7 and 0.9. In August and October 2019, determinations were implemented on growth traits of T. grandis ‘Merrillii’ and P. multiflorum, and on soil traits. The results showed that under 0.7 canopy density, growth of shoot, ground diameter, tree height, crown width and yield of T. grandis interplanted with P. multiflorum were 18.97%, 14.18%, 24.55%, 20.79% and 40.00% higher than CK (no interplanting), and P. multiflorum had the best growth under this canopy density, as well as the comprehensive benefit of interplanting stand. The soil pH, contents of organic matter, total nitrogen, alkali hydrolyzable nitrogen, total phosphorus and available potassium in interplanting stand increased by 12.73%, 52.86%, 77.30%, 96.90%, 88.24% and 27.57% than that in the control, while the contents of soil available phosphorus and total potassium decreased by 18.50% and 24.57%. The experiment demonstrated that interplanting could improve soil nutrient content and pH of the stand.

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备注/Memo

备注/Memo:
收稿日期:2021-01-03;修回日期:2021-06-18
基金项目:浙江省林业发展和资源保护项目(浙财农〔2018〕72 号)
作者简介:叶邦宣,工程师,从事森林培育工作;E-mail: yebangxuan@163.com;通信作者:沈爱华,副研究员,从事森林培育工作;E-mail: maiahshen@126.com。
更新日期/Last Update: 2021-08-01