Impacto de Alnus acuminata Kunth en los flujos de N2O y calidad del pasto Pennisetum clandestinum Hochst. ex Chiov.

Q4 Environmental Science

Colombia Forestal Pub Date : 2017-12-20 DOI:10.14483/2256201X.11629

Amanda Silva Parra, Seydyss Garay Rodríguez, Arturo Samuel Gomez Insuasti

引用次数: 7

Abstract

El Aliso Alnus acuminata Kunth es un forestal del tropico alto de Colombia que se asocia con pasto Pennisetum clandestinum Hochst. ex Chiov. como sistema silvopastoril (SSP) y fija N atmosferico. El SSP se comparo con 0, 50, 100, 150 y 200 kg.N.ha -1 .ano -1 a los 30, 45 y 60 dias sobre la calidad del pasto, expresada en forraje verde (FV), materia seca (MS), porcentaje de proteina cruda (%PC) y N absorbido; tambien se evaluaron los flujos de emisiones de N 2 O a la atmosfera. El SSP supero a 0 y 50 kg.N.ha -1 en todas las variables, menos en los flujos de emisiones de N 2 O que fue mayor a 0 kg.N.ha -1 (P 0.05) y en FV fue similar a 100 kg.N.ha -1 (p>0.05); 150 y 200 kg.N.ha -1 .ano -1 supero en todas las variables al SSP. Se alcanzo mayor FV y MS a los 45 dias y %PC a los 30 dias.

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Alnus acuminata kunth对地下狼尾草N2O通量和草质的影响。前Chiov。

Aliso Alnus Acuminata-Kunth是哥伦比亚上热带地区的一种森林，与Pennisetum地下Hochst草有关。前Chiov。作为Silvovastoril系统（SSP）并固定大气氮。在30、45和60天内，将SSP与0、50、100、150和200 kg.n.ha-1.ano-1进行比较，以绿色饲料（FV）、干物质（MS）、粗蛋白百分比（%PC）和吸收的氮表示草的质量；还评估了N2或空气排放通量。所有变量的SSP均超过0和50 kg.n.ha-1，但N2排放通量或大于0 kg.n.ha-1（p0.05）的排放通量除外，FV与100 kg.n.ha-1相似（p>0.05）；150和200公斤。HA-1.ANO-1在所有变量中都超过了SSP。45天达到最大FV和MS，30天达到%PC。

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

Colombia Forestal Environmental Science-Nature and Landscape Conservation

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： Colombia Forestal Journal publishes original manuscripts on themes of the forest field and various aspects of natural resources and the environment, which are discriminated in the categories of research article, review, reflection and technical notes of agreement with the stipulations of COLCIENCIAS for scientific publications. According to the classification of scientific areas of the Organization for Economic Cooperation and Development (OECD), Colombia Forestal Journal belongs to the large area of Agricultural Sciences (4), Agriculture, Forestry and Fisheries (4A) and to the discipline Forestry (4A02). Since its creation in 1978, the journal has been edited and published by the Francisco José de Caldas District University with headquarters in Bogotá. The quality of the content of the journal has been strengthened with the collaboration of national and international external evaluators in a double blind arbitration system and the dissemination has been extended by publishing manuscripts in a language different from Spanish and with inclusion in bibliographical databases such as Scopus. , DOAJ, Scielo, Redalyc, Ebsco, CAB Abstracts of CAB International, Forestry Abstracts, Ulrich''s, Latindex, Publindex. Likewise, it has academic profiles at Mendeley, Academia and Researchgate. The articles that are submitted to Colombia Forestal Journal must be original and unpublished and have not been postulated in other journals.