道格拉斯冷杉幼林凋落物养分回归

IF 1.4 Q2 FORESTRY
J. Novák, D. Kacálek, D. Dušek
{"title":"道格拉斯冷杉幼林凋落物养分回归","authors":"J. Novák, D. Kacálek, D. Dušek","doi":"10.2478/forj-2020-0006","DOIUrl":null,"url":null,"abstract":"Abstract The use of Douglas fir (DF) is on the increase in the Czech Republic. This tree species shows a good production and also a beneficial impact on soil to some extent. We studied both amount and properties of litterfall in 18 to 20-year-old stands with DF in 2011. Two experimental plots were DF-dominated and one showed ca. 20 – 30% share of Scots pine (SP) at the beginning of observation. The experiments consisted of two treatments such as unthinned control and 50 – 62% trees’ density reduction accounting for 43 – 59% basal area reduction. Litterfall was collected using litter traps of 0.25 m2 area in 3 – 4 traps per treatment. Forest floor L and F were taken in 2011 and 2018 to investigate the development of their amount after thinning. Both whole-period sum and mean annual litterfall were reduced after thinning compared to controls. The mean annual litterfall totaled ca. 3 t ha−1 in 20-year-old DF–dominated stands. This amount represents an annual nutrient return of 30 – 40 kg N, 1 – 3 kg P, 3 – 5 kg K, 12 – 30 kg Ca and 1 – 2 kg Mg per one hectare. The reduction of the annual litterfall was more pronounced in DF–dominated stands. All thinned plots showed increased decomposition rates reflected in lower total L+F amounts in both DF–dominated plots whereas unthinned plots accumulated more L+F at the end. The mixed DF–SP plot showed reduced L and increased F layer amounts in both unthinned and thinned treatments with only minor change to L+F sum between 2011 and 2018.","PeriodicalId":45042,"journal":{"name":"Central European Forestry Journal","volume":"66 1","pages":"78 - 84"},"PeriodicalIF":1.4000,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Litterfall nutrient return in thinned young stands with Douglas fir\",\"authors\":\"J. Novák, D. Kacálek, D. Dušek\",\"doi\":\"10.2478/forj-2020-0006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract The use of Douglas fir (DF) is on the increase in the Czech Republic. This tree species shows a good production and also a beneficial impact on soil to some extent. We studied both amount and properties of litterfall in 18 to 20-year-old stands with DF in 2011. Two experimental plots were DF-dominated and one showed ca. 20 – 30% share of Scots pine (SP) at the beginning of observation. The experiments consisted of two treatments such as unthinned control and 50 – 62% trees’ density reduction accounting for 43 – 59% basal area reduction. Litterfall was collected using litter traps of 0.25 m2 area in 3 – 4 traps per treatment. Forest floor L and F were taken in 2011 and 2018 to investigate the development of their amount after thinning. Both whole-period sum and mean annual litterfall were reduced after thinning compared to controls. The mean annual litterfall totaled ca. 3 t ha−1 in 20-year-old DF–dominated stands. This amount represents an annual nutrient return of 30 – 40 kg N, 1 – 3 kg P, 3 – 5 kg K, 12 – 30 kg Ca and 1 – 2 kg Mg per one hectare. The reduction of the annual litterfall was more pronounced in DF–dominated stands. All thinned plots showed increased decomposition rates reflected in lower total L+F amounts in both DF–dominated plots whereas unthinned plots accumulated more L+F at the end. The mixed DF–SP plot showed reduced L and increased F layer amounts in both unthinned and thinned treatments with only minor change to L+F sum between 2011 and 2018.\",\"PeriodicalId\":45042,\"journal\":{\"name\":\"Central European Forestry Journal\",\"volume\":\"66 1\",\"pages\":\"78 - 84\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2020-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Central European Forestry Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2478/forj-2020-0006\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FORESTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Central European Forestry Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/forj-2020-0006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FORESTRY","Score":null,"Total":0}
引用次数: 2

摘要

摘要:在捷克共和国,花旗松(DF)的使用正在增加。该树种产量好,对土壤也有一定的有益影响。2011年对18 ~ 20年林分的凋落物数量和性质进行了研究。两个试验田以东风为主,其中一个试验田在观察开始时的杉木(SP)占比约为20 - 30%。试验分为两种处理,一种是未疏林对照,另一种是树木密度减少50 ~ 62%,基面积减少43 ~ 59%。采用0.25 m2面积的凋落物捕集器,每次处理3 ~ 4个捕集器。2011年和2018年对森林地面L和F进行了测量,以调查其在间伐后的数量发展情况。与对照相比,间伐后全期凋落物总量和年平均凋落物量均有所减少。20年df优势林分年平均凋落量约为3 t ha - 1。这个数量代表每公顷每年30 - 40公斤氮、1 - 3公斤磷、3 - 5公斤钾、12 - 30公斤钙和1 - 2公斤镁的养分回报。年凋落物减少在df优势林分中更为明显。所有减薄样地的分解速率均有所提高,表现为df主导样地的L+F总量较低,而未减薄样地最终积累的L+F较多。DF-SP混合样地显示,2011 - 2018年间,未疏植和疏植处理均降低了L层数,增加了F层数,L+F总和变化不大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Litterfall nutrient return in thinned young stands with Douglas fir
Abstract The use of Douglas fir (DF) is on the increase in the Czech Republic. This tree species shows a good production and also a beneficial impact on soil to some extent. We studied both amount and properties of litterfall in 18 to 20-year-old stands with DF in 2011. Two experimental plots were DF-dominated and one showed ca. 20 – 30% share of Scots pine (SP) at the beginning of observation. The experiments consisted of two treatments such as unthinned control and 50 – 62% trees’ density reduction accounting for 43 – 59% basal area reduction. Litterfall was collected using litter traps of 0.25 m2 area in 3 – 4 traps per treatment. Forest floor L and F were taken in 2011 and 2018 to investigate the development of their amount after thinning. Both whole-period sum and mean annual litterfall were reduced after thinning compared to controls. The mean annual litterfall totaled ca. 3 t ha−1 in 20-year-old DF–dominated stands. This amount represents an annual nutrient return of 30 – 40 kg N, 1 – 3 kg P, 3 – 5 kg K, 12 – 30 kg Ca and 1 – 2 kg Mg per one hectare. The reduction of the annual litterfall was more pronounced in DF–dominated stands. All thinned plots showed increased decomposition rates reflected in lower total L+F amounts in both DF–dominated plots whereas unthinned plots accumulated more L+F at the end. The mixed DF–SP plot showed reduced L and increased F layer amounts in both unthinned and thinned treatments with only minor change to L+F sum between 2011 and 2018.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
3.20
自引率
6.20%
发文量
23
审稿时长
22 weeks
期刊介绍: Central European Forestry Journal (published as Lesnícky Èasopis - Forestry Journal until 2016) publishes novel science originating from research in forestry and related braches. Central European Forestry Journal is a professional peer-reviewed scientific journal published 4-time a year. The journal contains original papers and review papers of basic and applied research from all fields of forestry and related disciplines. The editorial office accepts the manuscripts within the focus of the journal exclusively in English language. The journal does not have article processing charges (APCs) nor article submission charges. Central European Forestry Journal, abbreviation: Cent. Eur. For. J., publishes original papers and review papers of basic and applied research from all fields of forestry and related scientific areas. The journal focuses on forestry issues relevant for Europe, primarily Central European regions. Original works and review papers can be submitted only in English language.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信