Analysis of agricultural intensification in a basin with remote sensing data

被引：11

作者：

de Oliveira, Julio Cesar ^{[1
,2
]}

Trabaquini, Kleber ^{[1
]}

Neves Epiphanio, Jose Carlos ^{[1
]}

Formaggio, Antonio Roberto ^{[1
]}

Galvao, Lenio Soares ^{[1
]}

Adami, Marcos ^{[3
]}

机构：

[1] Natl Inst Space Res INPE, DSR, BR-12227010 Sao Paulo, Brazil

[2] Univ Fed Vicosa, Dept Civil Engn, BR-36570000 Vicosa, MG, Brazil

[3] Natl Inst Space Res INPE, Amazon Reg Ctr, BR-66077830 Belem, Para, Brazil

来源：

GISCIENCE & REMOTE SENSING | 2014年 / 51卷 / 03期

关键词：

cropping systems; crop expansion; time series; agricultural intensification; river basin; LAND-COVER CHANGE; TIME-SERIES; VEGETATION INDEXES; SOY MORATORIUM; MATO-GROSSO; MODIS; BIOME; NDVI; AREA; EXPANSION;

D O I：

10.1080/15481603.2014.909108

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The last few decades have been marked by important changes in the Brazilian agriculture, especially with respect to crop-management practices. This study aimed to analyze the dynamics of cropping systems in a typical agricultural river basin in the state of Mato Grosso. Landsat satellite images and time series of Moderate Resolution Imaging Spectroradiometer vegetation index profiles were analyzed from 2000 to 2010. First, we assessed the horizontal expansion that occurred in the agricultural areas. Subsequently, using the product MOD13Q1, some metrics were established to identify the vertical intensification of soil use (single-or double-cropping systems). Results showed stagnation in the expansion of new deforested areas for agriculture in the 2003/2004 growing season, with simultaneous vertical intensification of agriculture. The adoption of the double-cropping system (e. g., soybean/corn and soybean/cotton) expanded by 266% during the studied period and reached 56% of the croplands in the 2009/2010 growing season.

引用

页码：253 / 268

页数：16

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