Factors driving tree community structure in traditional home gardens in the Mayan forest

IF 6 2区 环境科学与生态学 Q1 ENVIRONMENTAL STUDIES Urban Forestry & Urban Greening Pub Date : 2024-07-31 DOI:10.1016/j.ufug.2024.128466
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Abstract

Introduction

'Peasant populations in tropical areas use Traditional Home Gardens (THG) as a key resource for their homes. THG supports significant plant biodiversity, most directly related to asset production, including locally rare species related to food, fuelwood, cultural, ornamental, shade, and wind barriers. Previous studies have considered factors driving tree diversity in THG; however, few have evaluated the biological, environmental, and management factors that shape tree diversity. Our objective in the present study was to identify the drivers of the tree community in THG across a precipitation gradient, evaluating biological, environmental and management factors.

Methods

We visited forty-eight THG distributed across the precipitation gradient spanning around 300 km The tropical Mayan Forest in the Yucatan Peninsula, Mexico., where tree inventory and identification were obtained from specimens with a diameter at breast height > 5 cm. Interviews were conducted with owners about the history of THG. Metadata were captured and analyzed for 19 putative determinants of tree population structure. Differences in tree diversity by individual THG and region were determined statistically. Modeled interaction networks were determined based on a co-occurrence matrix.

Results

THG tree abundances are mainly explained by the relative abundance of not deliberately established individuals, the organic carbon content in the soil, and surrounding forest integrity. Management history of THG by peasants, including factors such as irrigation, TGH area, and fertilization, showed smaller but significant differences. Tree distribution is at a lower degree influenced by the precipitation gradient in the Yucatan Peninsula, which shows different abundances even for species established by THG owners.

Conclusions

Our results suggest that biological and environmental factors may shape tree abundance and distribution over anthropic activities in THG. We identified rare, region-specific, and indicator species by region and modeled interaction networks that show coincidences with the empirical knowledge of THG owners.

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玛雅森林传统家庭菜园树木群落结构的驱动因素
热带地区的农民将传统家庭花园(THG)作为家中的重要资源。传统家庭花园支持重要的植物生物多样性,其中大部分与资产生产直接相关,包括与食物、薪材、文化、观赏、遮荫和防风屏障相关的当地稀有物种。以前的研究曾考虑过推动太和观树木多样性的因素,但很少有研究对形成树木多样性的生物、环境和管理因素进行评估。我们本次研究的目的是通过对生物、环境和管理因素的评估,确定降水梯度下太行山地区树木群落的驱动因素。我们访问了分布在降水梯度上的 48 个热带雨林,跨度约 300 千米。就 THG 的历史与所有者进行了访谈。采集了元数据,并对树木种群结构的 19 个假定决定因素进行了分析。通过统计学方法确定了各个 THG 和地区的树木多样性差异。根据共现矩阵确定了相互作用网络模型。THG 树木的丰度主要取决于非刻意建立的个体的相对丰度、土壤中的有机碳含量以及周围森林的完整性。农民对 THG 的管理历史,包括灌溉、TGH 面积和施肥等因素,显示出较小但显著的差异。在尤卡坦半岛,树木分布受降水梯度的影响较小,即使是由临时居住地所有者种植的树种,其丰度也不尽相同。我们的研究结果表明,生物和环境因素对树木丰度和分布的影响可能大于人类活动对临时过渡政府的影响。我们按地区确定了稀有物种、特定地区物种和指示物种,并建立了互动网络模型,这些模型与 THG 所有者的经验知识不谋而合。
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来源期刊
CiteScore
11.70
自引率
12.50%
发文量
289
审稿时长
70 days
期刊介绍: Urban Forestry and Urban Greening is a refereed, international journal aimed at presenting high-quality research with urban and peri-urban woody and non-woody vegetation and its use, planning, design, establishment and management as its main topics. Urban Forestry and Urban Greening concentrates on all tree-dominated (as joint together in the urban forest) as well as other green resources in and around urban areas, such as woodlands, public and private urban parks and gardens, urban nature areas, street tree and square plantations, botanical gardens and cemeteries. The journal welcomes basic and applied research papers, as well as review papers and short communications. Contributions should focus on one or more of the following aspects: -Form and functions of urban forests and other vegetation, including aspects of urban ecology. -Policy-making, planning and design related to urban forests and other vegetation. -Selection and establishment of tree resources and other vegetation for urban environments. -Management of urban forests and other vegetation. Original contributions of a high academic standard are invited from a wide range of disciplines and fields, including forestry, biology, horticulture, arboriculture, landscape ecology, pathology, soil science, hydrology, landscape architecture, landscape planning, urban planning and design, economics, sociology, environmental psychology, public health, and education.
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