生物炭对NTFP丰富的二级森林生长和亚马逊地区的土壤特性的影响 厄瓜多尔
Pedro Damián Ríos Guayasamín1, Sandy M Smith2, Sean C Thomas2
1Institute of Forestry and Conservation, John H. Daniels, Faculty of Architecture, Landscape and Design, University of Toronto, 33 Willcocks St., Toronto, ON, M5S3B3, Canada; Facultad de Ciencias de la Vida, Universidad Estatal Amazónica - UEA, Campus Principal Km 2.1/2 vía a Napo (Paso Lateral) Puyo, Pastaza, Ecuador; Laboratorio de Ecología Tropical Natural y Aplicada - LETNA, CEIPA, UEA, Km 44, Santa Clara, Pastaza - Arosemena Tola, Napo, Ecuador.
Journal of environmental management
|October 11, 2023
概括
生物炭的应用改善了土壤的特性,并在亚马逊森林复林工作中增加了树木的生长. 土壤修改在较贫穷的土壤上最有效,增加了高达29%的地面生物质.
科学领域:
- 热带生态 热带生态
- 土壤科学 土壤科学
- 森林再生和恢复生态学
背景情况:
- 亚马逊森林砍伐导致土壤退化,对生物多样性和生态系统恢复构成挑战.
- 来自废物材料的生物炭可以提高土壤质量,但它对热带树木生长的有效性是不一致的.
- 目前正在探索非木材林产品 (NTFP) 种植园,以恢复退化土地.
研究的目的:
- 评估两种生物炭类型 (开放式炉和传统) 在三年内对土壤特性和树木生长的影响.
- 根据生物炭修正案,评估非木材林产品 (NTFP) 种植园 (Ocotea quixos,Myroxylon balsamum) 的表现.
- 调查生物炭应用和NTFP物种在不同土壤类型的土壤和树木生长中的相互作用.
主要方法:
- 在不同土壤类型的两个地点,在10t ha-1下应用生物炭的实地实验.
- 在三年内监测土壤特性 (有机物质,电导率,营养物质) 和树木生长 (地表生物质).
- 对不同NTFP物种和生物炭处理的树木生长反应的比较.
主要成果:
- 生物炭修正案显著改善了土壤特性,增加了有机物质,电导率和关键营养素 (K,Ca,N),对较贫穷的土壤产生更强烈的影响.
- 生物炭的应用导致了树木生长的增加,与对照组相比,地面生物质增加了29% (生物炭) 和23% (山生物炭).
- 树种表现出不同的反应;观察到生物炭和NTFP治疗之间的显著相互作用,表明了特定物种的益处.
结论:
- 生物炭是热带森林恢复的一个有前途的工具,特别有效改善土壤状况,促进退化土地上的树木生长.
- 生物炭的有效性受土壤类型的影响,在不太有利的土壤条件下观察到更大的益处.
- 将生物炭与豆类NTFP结合起来,可以提高生产力和生态弹性,为热带森林再生提供一个可行的战略.
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