Height growth patterns of genetically improved Scots pine and silver birch

苏格兰松 播种 松属 库存(枪支) 林业 数学 环境科学 森林动态 生物 生态学 农林复合经营 地理 植物 考古
作者
Pauls Zeltiņš,Āris Jansons,Virgilijus Baliuckas,Ahto Kangur
出处
期刊:Forestry 被引量:1
标识
DOI:10.1093/forestry/cpad057
摘要

Abstract The breeding of forest tree species in the Baltic region has notably contributed to wood production for the bioeconomy. Growth modelling is used for long-term estimates of forest development. However, usually based on data from unimproved stands, they may underestimate the growth of improved trees. Accordingly, it is important to identify and integrate the altered stand dynamics associated with improved planting stock into existing growth models to accurately capture the resulting gains or, alternatively, develop new functions specifically designed for improved trees. We used the generalized algebraic difference approach to model and analyze height growth patterns of Scots pine and silver birch with different genetic improvement levels (improved forest reproductive material categories ‘qualified’ and ‘tested’). Modelling was based on 14 260 and 55 926 height–age series from open-pollinated progeny trials in Latvia and Lithuania with an age range of 3–46 and 5–22 years for pine and birch, respectively. Dynamic generalized algebraic difference approach forms of commonly applied height growth functions with forest reproductive material-category-specific sets of coefficients were tested. The dynamic form of the Chapman–Richards and King–Prodan equations had the best fit for Scots pine and silver birch, respectively. The expected height growth of the category ‘tested’ was slightly better than the one for ‘qualified’, with more distinct differences in silver birch. The model with forest reproductive material-category-specific coefficients reflected the actual growth of improved trees; however, such application is limited to sites with medium and high site indices, where improved planting stock is typically used. We recommend the model for young stands up to the age of 20 and 40 years for pine and birch, respectively, considering the empirical data cover on which the functions are based. A unified dynamic height model with the same functional form but category-specific parameterization for different improvement levels allows a practical applicability and effective communication amongst diverse users, thereby promoting the utilization of the model amongst forest owners and managers who possess information regarding the origin of planting stock.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
萧凌翠发布了新的文献求助10
刚刚
慕青应助松子采纳,获得10
1秒前
小蘑菇应助Naomi-yu采纳,获得10
5秒前
6秒前
唐云炳完成签到 ,获得积分10
8秒前
8秒前
ZZHh发布了新的文献求助10
9秒前
9秒前
summer完成签到 ,获得积分10
9秒前
ZX关闭了ZX文献求助
10秒前
bkagyin应助venuslion80采纳,获得10
11秒前
11秒前
温暖的鸿完成签到 ,获得积分10
12秒前
12秒前
小姜菜鸡发布了新的文献求助10
13秒前
李晓玲发布了新的文献求助10
13秒前
北化陈帅帅完成签到,获得积分10
15秒前
19秒前
Naomi-yu发布了新的文献求助10
19秒前
AptRank完成签到,获得积分10
19秒前
20秒前
等待的南晴完成签到 ,获得积分10
22秒前
24秒前
24秒前
Sam应助zzz采纳,获得10
25秒前
wu发布了新的文献求助10
25秒前
可靠大娘发布了新的文献求助10
26秒前
李晓玲完成签到,获得积分10
28秒前
28秒前
Akim应助Hosea采纳,获得10
28秒前
mei完成签到 ,获得积分10
28秒前
最蠢的讨厌鬼完成签到,获得积分10
29秒前
Murphy发布了新的文献求助30
29秒前
科研通AI2S应助MaxCKJ采纳,获得10
30秒前
32秒前
32秒前
可靠大娘完成签到,获得积分10
33秒前
34秒前
Ceng完成签到 ,获得积分10
35秒前
小蘑菇应助Beebee24采纳,获得10
35秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2500
Востребованный временем 2500
Aspects of Babylonian celestial divination : the lunar eclipse tablets of enuma anu enlil 1500
Agaricales of New Zealand 1: Pluteaceae - Entolomataceae 1040
Healthcare Finance: Modern Financial Analysis for Accelerating Biomedical Innovation 1000
Classics in Total Synthesis IV: New Targets, Strategies, Methods 1000
지식생태학: 생태학, 죽은 지식을 깨우다 600
热门求助领域 (近24小时)
化学 医学 材料科学 生物 工程类 有机化学 生物化学 纳米技术 内科学 物理 化学工程 计算机科学 复合材料 基因 遗传学 物理化学 催化作用 细胞生物学 免疫学 电极
热门帖子
关注 科研通微信公众号,转发送积分 3455268
求助须知:如何正确求助?哪些是违规求助? 3050635
关于积分的说明 9021890
捐赠科研通 2739221
什么是DOI,文献DOI怎么找? 1502502
科研通“疑难数据库(出版商)”最低求助积分说明 694549
邀请新用户注册赠送积分活动 693350