Bean–soybean succession under full sun and in agroforestry systems: Impacts on radiation use efficiency, growth and yield

Sgarbossa, Jaqueline; Elli, Elvis Felipe; Schwerz, Felipe; Nardini, Claiton; Knapp, Fábio Miguel; Schmidt, Denise; Lúcio, Alessandro Dal’Col; Caron, Braulio Otomar

doi:10.1111/jac.12450

Cited by 9 publications

(2 citation statements)

References 44 publications

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“…Integrated Crop-Livestock-Forestry systems cannot be expected to fully replace monoculture farming. In particular, soybean plants grown under integrated systems had lower yields because of reduced solar incidence 12 . However, land-use diversification does not need to follow a single prescription for all cases.…”

Section: Solutions Through Diversificationmentioning

confidence: 99%

Land use still matters after deforestation

Maeda

Aragão

Baker

et al. 2023

Commun Earth Environ

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Careful management of deforested Amazonian land cannot replace, but must complement, efforts to preserve the rainforest. Sustainable agricultural practices that promote diverse uses can help minimise climate and environmental impacts.Different land uses in deforested regions of Amazonia can have very different impacts on the climate and environment. Although different sectors of society are engaged in efforts to curb Amazonian deforestation, the consequences of land use in deforested areas have not received enough attention. After deforestation, the remaining forest fragments continue to be affected by ecosystem disturbances in the surrounding areas. These disturbances have profound effects not only on the biodiversity and functioning of remaining forests but also on agribusiness. We argue that we need a land-use revolution toward the management of deforested lands that takes an environmental, social and economic perspective. Rapidly changing land useThe uses of deforested areas in the Amazon region are under constant change. After the 1970s, a combination of technological advances, including plant breeding and soil acidity correction (i.e., liming), led to the expansion of soybean plantations into Brazil's Savannas-the Cerrado-and the Southern Amazon frontier. Together, these advances marked a turning point for agricultural production in the Southern Amazon. Higher productivity and increasing profits created fertile ground for corporate farming and led to a rapid expansion of extensive monocultures 1 . From 2000 to 2019, the area of soybean cultivation in the Amazon region increased more than 10-fold (Fig. 1), from 0.4 to 4.6 Mha 2 . Not all deforestation is the same Environmental changes within remaining forest fragments often mirror changes in their surroundings 3 . The climatic impacts that arise from forest loss depend on the size of deforested patches, on land use, and on the land management in those areas. Small-scale deforestation of patches below 10 km 2 in size leads to more shallow clouds as there is more convective energy in the system, and promotes higher volumes of rainfall 4 . However, as deforested areas increase in size, convective lifting mechanisms lose force, which reduces the appearance of shallow clouds, and thereby evapotranspiration and rainfall 5 . This shift is already taking place in many areas of Amazon 6 .

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Section: Solutions Through Diversificationmentioning

confidence: 99%

Land use still matters after deforestation

Maeda

Aragão

Baker

et al. 2023

Commun Earth Environ

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“…Several strategies can be used to reduce the effect of the tree canopy on solar radiation, such as forest species by adjusting the canopy size, architecture and leaf geometry [40]. Several studies showed that the dynamics of solar radiation in understorey forest species differed, 41.5% in the amount of solar radiation available in understorey Melaleuca cajuputi, Peltophorum dubium and Eucalyptus grandis [41].…”

Section: Soybean In Agroforestry Systemmentioning

confidence: 99%

The role of soybean agroforestry in mitigating climate change in Indonesia

Purnomo

Budiastuti

Setyaningrum

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Climate change is a global problem that has an impact on food production. Protein needs for people in developing countries such as Indonesia have not been fulfilled optimally. Indonesian people’s protein consumption is still at 65.7%, much lower than it should be. The development of soybean cultivation as a source of vegetable protein is very potential. This article aims to examine the role of soybean agroforestry to meet human protein needs and as an effort to mitigate climate change.In Indonesia, soybean development is constrained by people’s views; soybean is not the main crop and the rate of land conversion. An effort to overcome the limitation of optimum land according to the growing season is the development of soybean cultivation under forest stands as an agroforestry system. In Indonesia, there are production forests, including teak, pine, sengon, and resin, especially in teak, pine, and sengon forests, soybean cultivation with agroforestry systems has developed. The main obstacle to cultivation in the agroforestry system is low light due to the shade of the tree canopy. It requires efforts: tree spacing, especially between rows, trimming the tree canopy when the canopy is getting tighter, and low light tolerant plant varieties. Soybeans are low-light tolerant plants. The national average soybean production of about 1.5 tons ha-1 can be achieved in teak-based agroforestry systems up to 3-4 years old tree, pine-based up to 3 years old, and sengon-based up to 5 years old. The agroforestry system has the potential as land for the cultivation of organic plants in mitigating the impacts of climate change.

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