气候对白云杉人工林立地生产力的影响分析与建模

IF 1.2 4区农林科学 Q3 FORESTRY

Forestry Chronicle Pub Date : 2018-05-28 DOI:10.5558/TFC2018-026

Mahadev Sharma, J. Parton

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引用次数: 9

摘要

研究了气候对白云杉人工林立地生产力的影响。在加拿大安大略省北部北部针叶林地区的31个样地(3个样地/样地)中，从93个样地(1棵/样地)取样的93棵显性或共显性白云杉的茎干分析数据用于研究气候对样地生产力的影响并建立林分高度模型。使用站点指数作为站点生产力的估计。利用场地指数对场地和气候变量的回归，考察了场地和气候对场地生产力的影响。白云杉立地特异属性解释了33%的立地指数变异性。然后通过纳入气候变量开发了林分高度模型。通过预测三个随机选择的地点(安大略省东部、西部和南部)的林分高度，评估了气候效应，特别是预估的增温和降雨对林分高度生长的影响。

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Analyzing and modelling effects of climate on site productivity of white spruce plantations

Effects of climate on site productivity of white spruce (Picea glauca) plantations were examined. Stem analysis data collected from 93 dominant or co-dominant white spruce trees sampled from 93 plots (1 tree/plot) in even-aged monospecific plantations on 31 sites (three plots/site) in the Canadian boreal forest region of Northern Ontario were used to examine effects of climate on site productivity and to develop stand height models. Site index was used as an estimate of site productivity. Effects of site and climate on site productivity were examined by regressing site index against site and climate variables. The site specific attributes explained 33% of the variability in site index for white spruce. Stand height models were then developed by incorporating climate variables. Climatic effects specifically those of projected increased warming and rainfall on stand height growth were evaluated by predicting stand heights for three randomly selected locations (in eastern, western, and southern Ontario) for ...

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来源期刊

Forestry Chronicle 农林科学-林学

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The Canadian Institute of Forestry has published The Forestry Chronicle, a professional and scientific forestry journal, since 1925. The Forestry Chronicle is published to provide information to forest practitioners about professional and scientific management of forests and their resources. The Forestry Chronicle provides forest practitioners in Canada and around the world with a means to communicate with their peers in the professional community.