Land use and land cover change impacts on the regional climate of non-Amazonian South America: A review

Salazar, Álvaro; Baldi, Germán; Hirota, Marina; Syktus, Jozef; McAlpine, Clive

doi:10.1016/j.gloplacha.2015.02.009

Cited by 230 publications

(119 citation statements)

References 150 publications

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“…Given these trends in LULC changes, the observed LST trends were most likely caused by gradual decrease of forest cover loss at the expense of agriculture and croplands. Our assumptions are supported by findings of Silvério et al (2015), Costa et al (2007), Oliveira et al (2013), Spracklen et al (2012) and Salazar et al (2015) that indicate that land use transitions in deforested areas likely have a strong influence on regional climate. Alkama and Cescatti (2016) show that biophysical effects of forest cover changes can substantially affect the local climate by altering the average temperature, which is consistent with our observations and can be related to the observed land use change in the Jambi province.…”

Section: Effects Of Land Use Change On the Provincial Surface Temperasupporting

confidence: 79%

“…Observational studies in the Amazonia by Lawrence and Vandecar (2015) on the conversion of natural vegetation to crop or pasture land showed a surface warming effect. Salazar et al (2015) provided additional evidence that conversion of forest to other types of land use in the Amazonia caused significant reductions in precipitation and increases in surface temperatures. Alkama and Cescatti (2016) and earlier studies by Loarie et al (2011a, b) showed that tropical deforestation may increase the LST.…”

Section: Drivers Of Local Differences Between Different Land Cover Typesmentioning

confidence: 97%

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Expansion of oil palm and other cash crops causes an increase of the land surface temperature in the Jambi province in Indonesia

et al. 2017

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Abstract. Indonesia is currently one of the regions with the highest transformation rate of land surface worldwide related to the expansion of oil palm plantations and other cash crops replacing forests on large scales. Land cover changes, which modify land surface properties, have a direct effect on the land surface temperature (LST), a key driver for many ecological functions. Despite the large historic land transformation in Indonesia toward oil palm and other cash crops and governmental plans for future expansion, this is the first study so far to quantify the impacts of land transformation on the LST in Indonesia. We analyze LST from the thermal band of a Landsat image and produce a highresolution surface temperature map (30 m) for the lowlands of the Jambi province in Sumatra (Indonesia), a region which suffered large land transformation towards oil palm and other cash crops over the past decades. The comparison of LST, albedo, normalized differenced vegetation index (NDVI) and evapotranspiration (ET) between seven different land cover types (forest, urban areas, clear-cut land, young and mature oil palm plantations, acacia and rubber plantations) shows that forests have lower surface temperatures than the other land cover types, indicating a local warming effect after forest conversion. LST differences were up to 10.1 ± 2.6 • C (mean ± SD) between forest and clear-cut land. The differences in surface temperatures are explained by an evaporative cooling effect, which offsets the albedo warming effect.Our analysis of the LST trend of the past 16 years based on MODIS data shows that the average daytime surface temperature in the Jambi province increased by 1.05 • C, which followed the trend of observed land cover changes and exceeded the effects of climate warming. This study provides evidence that the expansion of oil palm plantations and other cash crops leads to changes in biophysical variables, warming the land surface and thus enhancing the increase of the air temperature because of climate change.

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Section: Effects Of Land Use Change On the Provincial Surface Temperasupporting

confidence: 79%

Section: Drivers Of Local Differences Between Different Land Cover Typesmentioning

confidence: 97%

Expansion of oil palm and other cash crops causes an increase of the land surface temperature in the Jambi province in Indonesia

et al. 2017

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“…Human activities have been documented as one of the main driving forces of LULC changes and simultaneous changes in natural environments [2]. In turn, LULC changes greatly influence, among others, the spatial pattern of a landscape [3,4], the availability of ecosystem goods and services [5], and increase vulnerability of regional biomes and human well-being to climate change [6]. Continuously studying and monitoring LULC changes are particularly important in understanding the dynamics and predicting the patterns and trend of changes in a natural landscape and associated ecosystems at local, regional, and global scales, and to provide evidence-based support to improve land management policies and practices [7,8].…”

Section: Introductionmentioning

confidence: 99%

Land Use and Land Cover Changes and Their Effects on the Landscape of Abaya-Chamo Basin, Southern Ethiopia

Woldeyohannes

Cotter

Kelboro

et al. 2018

Land

106

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This study uses a combination of remote sensing data, field interviews and observations, and landscape indices to examine the dynamics of land use and land cover (LULC), identify their driving forces, and analyze their effects on the landscape of Abaya-Chamo Basin (ACB) between 1985, 1995, and 2010. The results reveal that the landscape of ACB has changed considerably during the past 25 years between 1985 and 2010. The main changes observed imply a rapid reduction in shrubland (28.82%) and natural grassland (33.13%), and an increase in arable land (59.15%). The basin has become more fragmented and formed less connected patches in 2010 compared to 1985. Rapid population growth, internal migration, policy shifts, and regime change were identified as the key driving forces of LULC changes in ACB. The LULC changes and related trend of increasing landscape fragmentation in the basin increased soil erosion, the volume of surface runoff, and sediment transport in the landscape and, consequently, affected the levels and water quality of the lakes found in the rift floor. Furthermore, the destruction and fragmentation of shrubland and natural grassland led to the decline of wild plants and animals previously prominent in the basin. Therefore, protective measures that take into consideration the economic, social, and ecological dynamics of the basin are urgently needed to save the aquatic and terrestrial ecosystems of the basin from further damage.

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“…Nevertheless, 413,506 km 2 have been deforested just since 1988 (PRODES 2015), an area slightly larger than Paraguay. Deforestation in the region has global implications for loss of biodiversity, threats to indigenous peoples, and impacts on climate change (Schwartzman and Zimmeran 2005;Foley et al 2007;Salazar et al 2015).…”

mentioning

confidence: 99%

Land occupations and deforestation in the Brazilian Amazon

Brown

Brown³

2016

Land Use Policy

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Researchers are increasingly interested in understanding the impact of contentious social processes on land change. In the Brazilian Amazon, there are often contentious interactions between landholders defending private property rights and squatters who have the right to occupy land that is deemed unproductive. Previous studies suggest that the contentious social processes inherent in the Brazilian land tenure and land reform system cause a significant amount of deforestation. An environment of insecure land title, and policies that value deforested land over forested land, among other factors, encourage both landholders and squatters to deforest more land than is necessary for pasture or crop production. This paper examines the impact that land occupations have on deforestation at the municipal scale across the Brazilian Legal Amazon, from 2000-2009. We show that land occupations have a direct influence on deforestation. We use spatial analysis as well to show that land occupations have a spatial component in the effect on deforestation: occupations in one municipality affect deforestation in adjacent areas.

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Land use and land cover change impacts on the regional climate of non-Amazonian South America: A review

Cited by 230 publications

References 150 publications

Expansion of oil palm and other cash crops causes an increase of the land surface temperature in the Jambi province in Indonesia

Expansion of oil palm and other cash crops causes an increase of the land surface temperature in the Jambi province in Indonesia

Land Use and Land Cover Changes and Their Effects on the Landscape of Abaya-Chamo Basin, Southern Ethiopia

Land occupations and deforestation in the Brazilian Amazon

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