气候变率对西非非洲葡萄生长的影响

IF 2.7 3区 农林科学 Q1 FORESTRY
Kapoury Sanogo , Larba Hubert Balima , Jules Bayala , Meine van Noordwijk , Aster Gebrekirstos
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引用次数: 0

摘要

在西非农林业系统中,小果兰是一种具有较高社会经济价值的落叶树。虽然气候增长关系仍然未知,但该物种暴露在极端气候中。其可持续管理需要了解其对气候变化的反应。因此,本研究旨在使用标准的树木年代学方法,研究西非两个气候区(马里的苏丹地区和布基纳法索的苏丹-萨赫勒地区)的小果兰的生长情况。在这两个部位,小果兰形成了明显的生长环边界,其特征是带更宽,薄壁细胞排更多,并且以其孤立的血管为标志。所开发的两个标准年表与布基纳法索(r2=0.41,n=30年,p<;0.01)和马里(r2=0.60,n=53年,p<;0.001)的降水记录显著相关。此外,布基纳法索(r2=0.51,n=28年,p<;0.01)和马里(r2=0.65,n=52年,p<;0.001)的主要季节性降水量(6月至9月)与残差年表之间存在密切关系。年生长环的形成明显受到气候变化的影响,但并不是所有的变化都得到了解释。这两个地区的年代之间的相关性不显著,可能是由于各种因素造成的,包括气候因素和影响缓冲水可用性的土壤条件的差异。对西非其他树种进行类似的研究将是有益的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Climate variability impacts on growth of African grape (Lannea microcarpa Engl & K. Krause) in West Africa

Lannea microcarpa is a deciduous tree with high socio-economic value in West African agroforestry systems. While climate-growth relationships remain unknown, this species is exposed to climate extremes. Knowledge of its response to climate variations is needed for its sustainable management. Therefore, the present study aimed to examine the growth of Lannea microcarpa in two climatic zones in West Africa (Sudanian zone of Mali and Sudano-Sahelian zone of Burkina Faso) using standard dendrochronological methods. In both sites, Lannea microcarpa forms distinct growth ring-boundaries characterized by a wider band with more parenchyma cell rows and is also marked by its solitary vessels. The two standard chronologies developed were significantly correlated with the precipitation records in both Burkina Faso (r2 = 0.41, n = 30 years, p < 0.01) and Mali (r2 =0.60, n = 53 years, p < 0.001). Furthermore, a strong relationship between major seasonal precipitation (between June and September) and residual chronology was observed in Burkina Faso (r2 = 0.51, n = 28 years, p < 0.01) and Mali (r2 = 0.65, n = 52 years, p < 0.001). The formation of annual growth rings is clearly influenced by climate variability, but not all variance is accounted for. The insignificant correlation between the chronologies of the two regions may be due to various factors, including differences in climate factors and soil conditions influencing buffered water availability. Similar studies on other tree species in West Africa will be useful.

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来源期刊
Dendrochronologia
Dendrochronologia FORESTRY-GEOGRAPHY, PHYSICAL
CiteScore
5.50
自引率
13.30%
发文量
82
审稿时长
22.8 weeks
期刊介绍: Dendrochronologia is a peer-reviewed international scholarly journal that presents high-quality research related to growth rings of woody plants, i.e., trees and shrubs, and the application of tree-ring studies. The areas covered by the journal include, but are not limited to: Archaeology Botany Climatology Ecology Forestry Geology Hydrology Original research articles, reviews, communications, technical notes and personal notes are considered for publication.
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