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[期刊论文]

Mapping paddy rice areas based on vegetation phenology and surface moisture conditions

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author:

Qiu, Bingwen (Qiu, Bingwen.) [1] | Li, Weijiao (Li, Weijiao.) [2] | Tang, Zhenghong (Tang, Zhenghong.) [3] | Unfold

Indexed by:

EI

Abstract:

Accurate and timely rice mapping is important for food security and environmental sustainability. We developed a novel approach for rice mapping through Combined Consideration of Vegetation phenology and Surface water variations (CCVS). Variation of the Land Surface Water Index (LSWI) in rice fields was relatively smaller than that in other crops fields during the period from tillering to heading dates. Therefore, the ratios of change amplitude of LSWI to 2-band Enhanced Vegetation Index 2 (EVI2) during that period were utilized as the primary metric for paddy rice mapping. This algorithm was applied to map paddy rice fields in southern China using an 8-day composite Moderate Resolution Imaging Spectroradiometer (MODIS) in 2013. The resultant rice cropping map was consistent with the agricultural census data (r2 = 0.8258) and ground truth observations (overall accuracy = 93.4%). Validation with Landsat Thematic Mapper images in test regions also revealed its high accuracy (with overall accuracy of 94.3% and kappa coefficient of 0.86). The proposed CCVS method was more robust to intra-class variability and other related uncertainties compared with other related methods in rice mapping. Its successful application in southern China revealed its efficiency and great potential for further utilization. © 2015 Elsevier Ltd. All rights reserved.

Keyword:

Food supply Mapping Population statistics Radiometers Surface waters Sustainable development Time series analysis Vegetation

Community:

  • [ 1 ] [Qiu, Bingwen]National Engineering Research Centre of Geospatial Information Technology, Spatial Information Research Centre of Fujian Province, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 2 ] [Li, Weijiao]National Engineering Research Centre of Geospatial Information Technology, Spatial Information Research Centre of Fujian Province, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 3 ] [Tang, Zhenghong]Community and Regional Planning Program, University of Nebraska-Lincoln, Lincoln; NE; 68558, United States
  • [ 4 ] [Chen, Chongcheng]National Engineering Research Centre of Geospatial Information Technology, Spatial Information Research Centre of Fujian Province, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 5 ] [Qi, Wen]National Engineering Research Centre of Geospatial Information Technology, Spatial Information Research Centre of Fujian Province, Fuzhou University, Fuzhou; Fujian; 350002, China

Reprint 's Address:

  • [qiu, bingwen]national engineering research centre of geospatial information technology, spatial information research centre of fujian province, fuzhou university, fuzhou; fujian; 350002, china

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Source :

Ecological Indicators

ISSN: 1470-160X

Year: 2015

Volume: 56

Page: 79-86

3 . 1 9

JCR@2015

7 . 0 0 0

JCR@2023

ESI HC Threshold:301

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

30 Days PV: 1

Affiliated Colleges:

Online/Total:155/10199724
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