Soil erosion in Mediterranean chestnut tree plantations at risk due to climate change and land abandonment

IF 1.4 Q2 FORESTRY

Central European Forestry Journal Pub Date : 2020-06-01 DOI:10.2478/forj-2020-0015

Jesús Barrena-González, Javier Lozano‐Parra, Alberto Alfonso-Torreño, C. Lozano-Fondón, Mohamed Amine Abdennour, A. Cerdà, Manuel Pulido-Fernández

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引用次数: 6

Abstract

Abstract Chestnut cultivation is a type of traditional centennial exploitation in southern areas of Extremadura. Currently, chestnut is in danger of extinction due to the effects of climate change, some diseases (e.g. Cryphonectria parasitica) and land mismanagement. The high temporal variability of rainfall leads to soil erosion in chestnut cultivation. New forms of management are proposed to try, among other things, to reduce soil losses. This study quantifies soil losses in areas under tree canopies and open areas considering two different age plantations; 1990s and 1960s. To achieve the proposed goal 18 erosion plots were installed as paired plots under tree canopies and open areas in both plantations. The total amount of rainfall per event, tree cover, bare soil, runoff coefficient and sediment concentration were also measured in every plot. The results showed that the highest percentage of bare soil (> 45%) coincides with the period of greatest tree cover (> 75%). The open areas and the youngest plantation showed soil losses higher than the areas under the tree and the oldest plantation. In addition, soil losses increase as higher percentages of bare soil are recorded. We conclude that the size of the trees and a better soil stability in older plantations help reduce soil losses.

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气候变化和土地撂荒对地中海栗树人工林土壤侵蚀的影响

摘要栗树种植是埃斯特雷马杜拉南部地区百年传统开发的一种。目前，由于气候变化、一些疾病（如寄生栗）和土地管理不善的影响，栗子面临灭绝的危险。降雨量的高时间变异性导致了栗子种植中的土壤侵蚀。提出了新的管理形式，试图减少土壤损失等。这项研究量化了考虑两个不同年龄种植园的树冠下地区和开阔地区的土壤损失；20世纪90年代和60年代。为了实现拟议目标，在两个种植园的树冠和空地下安装了18块侵蚀地块作为配对地块。还测量了每个地块的每次降雨总量、树木覆盖率、裸土、径流系数和含沙量。结果表明，裸土比例最高（＞45%）与树木覆盖率最高（＞75%）的时期相吻合。开阔区和最年轻的人工林的土壤损失高于树下和最古老的人工林。此外，土壤损失随着裸土百分比的增加而增加。我们得出的结论是，树木的大小和较老种植园更好的土壤稳定性有助于减少土壤损失。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Central European Forestry Journal FORESTRY-

CiteScore

3.20

自引率

6.20%

发文量

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.