| Cite this article: | 田 鑫,李瑞平,王思楠,等.基于VSWI和TVDI差异的河套灌区沈乌灌域耕地灌溉面积遥感监测[J].灌溉排水学报,2020,():-. |
| tianxin,liruiping,wangsinan,et al.基于VSWI和TVDI差异的河套灌区沈乌灌域耕地灌溉面积遥感监测[J].灌溉排水学报,2020,():-. |
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| DOI： |
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| Remote sensing monitoring of farmland irrigation area in Shenwu irrigation area under Hetao Irrigation Area Based on VSWI and TVDI differences |
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tianxin1, liruiping1, wangsinan1, fanleilei1, yuminghui2
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1.College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University;2.Weihai Land and Resources Geographic Information Center
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| Abstract: |
| 【Objective】Irrigation area monitoring, as an important part of irrigation area management, is an important index for evaluation of irrigation benefit, and is also an important basis for regional water resources management,【Method】 in this paper, Shenwu irrigation area in Hetao irrigation area is used as the research area, and remote sensing data is used to realize the extraction of irrigation area in the study area, which provides a theoretical basis for modern management of Shenwu irrigation area. Landsat-8 data was used to retrieve the vegetation water supply index (VSWI) and temperature drought index (TVDI) in the study area. 【Result】According to the measured data, the irrigation area monitoring model based on the difference between VSWI and TVDI was constructed, and the irrigation area of Shenwu irrigation area was extracted by remote sensing. According to the distribution of the extracted irrigation area, the two models have high consistency, and the accuracy of the two models is tested by statistical data. According to the results, the inversion accuracy of the irrigation area monitoring model based on VSWI and TVDI is85.3% and89.7% respectively, which proves the feasibility of the two monitoring models at the same time. 【Conclusion】The accuracy of irrigation area monitoring model based on TVDI difference is slightly higher than that of VSWI based irrigation area monitoring model. |
| Key words: irrigation management;Irrigated area;remote sensing ;VSWI;TVDI |
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