Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments
Rice growth requires a large amount of water, and planting rice will increase the contradiction between supply and demand of water resources. Paddy field fallowing is important for the sustainable development of an agricultural region, but it remains a great challenge to accurately and quickly monit...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2020-07-01
|
| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311919628716 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839598870398500864 |
|---|---|
| author | Chong LUO Huan-jun LIU Qiang FU Hai-xiang GUAN Qiang YE Xin-le ZHANG Fan-chang KONG |
| author_facet | Chong LUO Huan-jun LIU Qiang FU Hai-xiang GUAN Qiang YE Xin-le ZHANG Fan-chang KONG |
| author_sort | Chong LUO |
| collection | DOAJ |
| description | Rice growth requires a large amount of water, and planting rice will increase the contradiction between supply and demand of water resources. Paddy field fallowing is important for the sustainable development of an agricultural region, but it remains a great challenge to accurately and quickly monitor the extent and area of fallowed paddy fields. Paddy fields have unique physical features associated with paddy rice during the flooding and transplanting phases. By comparing the differences in phenology before and after paddy field fallowing, we proposed a phenology-based fallowed paddy field mapping algorithm. We used the Google Earth Engine (GEE) cloud computing platform and Landsat 8 images to extract the fallowed paddy field area on Sanjiang Plain of China in 2018. The results indicated that the Landsat8, GEE, and phenology-based fallowed paddy field mapping algorithm can effectively support the mapping of fallowed paddy fields on Sanjiang Plain of China. Based on remote sensing monitoring, the total fallowed paddy field area of Sanjiang Plain is 91 543 ha. The resultant fallowed paddy field map is of high accuracy, with a producer (user) accuracy of 83% (81%), based on validation using ground-truth samples. The Landsat-based map also exhibits high consistency with the agricultural statistical data. We estimated that paddy field fallowing reduced irrigation water by 384–521 million cubic meters on Sanjiang Plain in 2018. The research results can support subsidization grants for fallowed paddy fields, the evaluation of fallowed paddy field effects and improvement in subsequent fallowed paddy field policy in the future. |
| format | Article |
| id | doaj-art-a56e7f1f654b47169c5e648d9f6e6c6a |
| institution | Matheson Library |
| issn | 2095-3119 |
| language | English |
| publishDate | 2020-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-a56e7f1f654b47169c5e648d9f6e6c6a2025-08-02T15:51:16ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192020-07-0119718851896Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessmentsChong LUO0Huan-jun LIU1Qiang FU2Hai-xiang GUAN3Qiang YE4Xin-le ZHANG5Fan-chang KONG6School of Economics and Management, Northeast Agricultural University, Harbin 150030, P.R. China; Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, P.R. China; Correspondence LUO ChongSchool of Pubilc Adminstration and Law, Northeast Agricultural University, Harbin 150030, P.R. China; Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, P.R. China; Correspondence LIU Huan-jun, Tel: +86-451-55191686Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, P.R. ChinaSchool of Pubilc Adminstration and Law, Northeast Agricultural University, Harbin 150030, P.R. ChinaSchool of Pubilc Adminstration and Law, Northeast Agricultural University, Harbin 150030, P.R. ChinaSchool of Pubilc Adminstration and Law, Northeast Agricultural University, Harbin 150030, P.R. ChinaSchool of Pubilc Adminstration and Law, Northeast Agricultural University, Harbin 150030, P.R. ChinaRice growth requires a large amount of water, and planting rice will increase the contradiction between supply and demand of water resources. Paddy field fallowing is important for the sustainable development of an agricultural region, but it remains a great challenge to accurately and quickly monitor the extent and area of fallowed paddy fields. Paddy fields have unique physical features associated with paddy rice during the flooding and transplanting phases. By comparing the differences in phenology before and after paddy field fallowing, we proposed a phenology-based fallowed paddy field mapping algorithm. We used the Google Earth Engine (GEE) cloud computing platform and Landsat 8 images to extract the fallowed paddy field area on Sanjiang Plain of China in 2018. The results indicated that the Landsat8, GEE, and phenology-based fallowed paddy field mapping algorithm can effectively support the mapping of fallowed paddy fields on Sanjiang Plain of China. Based on remote sensing monitoring, the total fallowed paddy field area of Sanjiang Plain is 91 543 ha. The resultant fallowed paddy field map is of high accuracy, with a producer (user) accuracy of 83% (81%), based on validation using ground-truth samples. The Landsat-based map also exhibits high consistency with the agricultural statistical data. We estimated that paddy field fallowing reduced irrigation water by 384–521 million cubic meters on Sanjiang Plain in 2018. The research results can support subsidization grants for fallowed paddy fields, the evaluation of fallowed paddy field effects and improvement in subsequent fallowed paddy field policy in the future.http://www.sciencedirect.com/science/article/pii/S2095311919628716fallowed paddy fieldsLandsat 8Sanjiang PlainGoogle Earth Enginewater security |
| spellingShingle | Chong LUO Huan-jun LIU Qiang FU Hai-xiang GUAN Qiang YE Xin-le ZHANG Fan-chang KONG Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments Journal of Integrative Agriculture fallowed paddy fields Landsat 8 Sanjiang Plain Google Earth Engine water security |
| title | Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments |
| title_full | Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments |
| title_fullStr | Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments |
| title_full_unstemmed | Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments |
| title_short | Mapping the fallowed area of paddy fields on Sanjiang Plain of Northeast China to assist water security assessments |
| title_sort | mapping the fallowed area of paddy fields on sanjiang plain of northeast china to assist water security assessments |
| topic | fallowed paddy fields Landsat 8 Sanjiang Plain Google Earth Engine water security |
| url | http://www.sciencedirect.com/science/article/pii/S2095311919628716 |
| work_keys_str_mv | AT chongluo mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT huanjunliu mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT qiangfu mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT haixiangguan mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT qiangye mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT xinlezhang mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments AT fanchangkong mappingthefallowedareaofpaddyfieldsonsanjiangplainofnortheastchinatoassistwatersecurityassessments |