Diameter growth of eucalyptus trees in agroforestry systems and its relation to air temperature and precipitation.

In agroforestry systems, such as integrated crop-livestock-forest (iCLF), the agricultural, livestock and arboreal components are explored in the same feld in rotation, succession or intercropping. Our objective was to investigate if the diameter growth of eucalyptus in agroforestry systems difers from those cultivated as a planted forest, as well as to assess whether there is a diference in its growth in face of the air temperature and precipitation. The study was held at Ponta Porã, Brazil, a region of humid subtropical climate with hot summers and soil classifed as Oxisol, which is fertile, deep and clayey. Dendrometer bands measured the diameter growth of eucalyptus (Eucalyptus urograndis) cultivated as a forest and in iCLF, with eucalyptus rows distance of 12.5×12.5 m, 12.5 m one side×25 m another side and 25×25 m. The study took place from four years and nine months after transplanting till six years and seven months (22 months monitoring). On iCLF, the inter-row was explored with grain crops (soybean or corn) and pasture. Climate data of air temperature and precipitation were used to investigate their infuence or not on diameter growth. Eucalyptus diameter growth is higher when cultivated in agroforestry systems and this growth is as higher as larger is the distance between eucalyptus rows. Precipitation proved to strongly and positively infuence the diameter growth, especially when cultivated in agroforestry systems. On the other hand, under the conditions of this study, air temperature showed little or no correlation with eucalyptus diameter growth.

Bibliographic Details

Main Authors:	FLUMIGNAN, D. L., SILVA, I. C. R. R. da, SALTON, J. C., COMUNELLO, E.
Other Authors:	DANILTON LUIZ FLUMIGNAN, CPAO; STAËL CAROLINE REGO RIBEIRO DA SILVA, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS; JULIO CESAR SALTON, CPAO; EDER COMUNELLO, CPAO.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2023
Subjects:	ILPF, Integração lavoura pecuária floresta,
Online Access:	http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1162148
Tags:	Add Tag No Tags, Be the first to tag this record!