拉丁美洲和加勒比农业土壤碳封存综述

IF 6 2区 生物学 Q1 PLANT SCIENCES Critical Reviews in Plant Sciences Pub Date : 2022-11-02 DOI:10.1080/07352689.2022.2148923
Jimenez-Castaneda M. E., L. R., Mello F. F. C., Witkowski K., S. C., Villarreal F.
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引用次数: 0

摘要

摘要拉丁美洲和加勒比地区的一个主要挑战是确定如何在保护自然生态系统和促进减缓气候变化的同时满足日益增长的全球粮食需求。在该地区,持续的土地利用正在发生,并造成了严重的土壤有机碳(SOC)损失。我们估计了该地区三个有代表性的生态系统的SOC减少:森林(4.21 PB的碳,Pg C,超过30 年),草原(1.86−7.32 Pg C,不同时期)和红树林(0.36 Pg C超过25 年)。增加农田SOC储量有助于减轻土地利用变化造成的SOC损失,但多种因素会影响农业生产和碳固存的动态和响应。农民是为粮食生产做出贡献并能够维持SOC库存的关键行动者;然而,必须考虑激励措施或公平的薪酬来实现这一点。此外,需要制定国家和大陆政策,通过采取积极的自然做法来恢复土地和可持续管理土壤健康,以提高土壤有机物的储量,提高投入的使用效率,并发展对营养敏感的农业。
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An Overview of Carbon Sequestration in Agricultural Soils of Latin America and the Caribbean
Abstract A major challenge in Latin America and the Caribbean (LAC) is to determine how to meet the ever-growing global needs for food while preserving natural ecosystems and contributing to climate change mitigation. In the region, continuing land use is occurring and has caused a significant soil organic carbon (SOC) loss. We estimated the SOC reduction in three representative ecosystems of the region: forests (4.21 petagrams of carbon, Pg C, over 30 years), grasslands (1.86−7.32 Pg C, over different periods) and mangroves (0.36 Pg C over 25 years). Increasing SOC stocks in agricultural lands can help to mitigate the SOC loss due to land use change, but multiple factors influence the dynamics and response of the agricultural production and carbon sequestration. Farmers are pivotal actors that contribute to food production and could maintain SOC stocks; however, incentives or fair compensation must be considered to enable this. Moreover, national, and continental policies are needed for land restoration and sustainable management of soil health as a living entity through adoption of nature-positive practices which enhance soil organic matter (SOM) stocks, increase use-efficiency of inputs, and lead to nutrition-sensitive agriculture.
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来源期刊
CiteScore
12.90
自引率
1.40%
发文量
15
审稿时长
>12 weeks
期刊介绍: Critical Reviews in Plant Sciences focuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics, classical botany, and ecology, to practical agricultural applications. Articles in the journal provide an up-to-date literature base for researchers and students, pointing the way towards future research needs. The journal is also a significant source of credible, objective information to aid decision makers at all levels.
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