Remote sensing monitoring of irrigated area in the non-growth season and of water consumption analysis in a large-scale irrigation district

He Li; Qingfeng Miao; Haibin Shi; Xianyue Li; Shengwei Zhang; Fengxia Zhang; Huailiang Bu; Pei Wang; Lin Yang; Yali Wang; Heng Du; Tong Wang; Weiying Feng

Agricultural Water Management (Oct 2024)

Remote sensing monitoring of irrigated area in the non-growth season and of water consumption analysis in a large-scale irrigation district

He Li,
Qingfeng Miao,
Haibin Shi,
Xianyue Li,
Shengwei Zhang,
Fengxia Zhang,
Huailiang Bu,
Pei Wang,
Lin Yang,
Yali Wang,
Heng Du,
Tong Wang,
Weiying Feng

Affiliations

He Li: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; High Efficiency Water-saving Technology and Equipment and Soil and Water Environment Effect in Engineering Research Center of Inner Mongolia Autonomous Region, Hohhot 010018, China; Inner Mongolia Autonomous Region Water Resources Development Center, Hohhot 010020, China
Qingfeng Miao: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; High Efficiency Water-saving Technology and Equipment and Soil and Water Environment Effect in Engineering Research Center of Inner Mongolia Autonomous Region, Hohhot 010018, China
Haibin Shi: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; High Efficiency Water-saving Technology and Equipment and Soil and Water Environment Effect in Engineering Research Center of Inner Mongolia Autonomous Region, Hohhot 010018, China; Corresponding author at: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.
Xianyue Li: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; High Efficiency Water-saving Technology and Equipment and Soil and Water Environment Effect in Engineering Research Center of Inner Mongolia Autonomous Region, Hohhot 010018, China
Shengwei Zhang: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
Fengxia Zhang: Inner Mongolia Autonomous Region Water Resources Development Center, Hohhot 010020, China
Huailiang Bu: Inner Mongolia Engineering Corporation Limited of Water Resources & Hydropower, Hohhot 010020, China
Pei Wang: Inner Mongolia Autonomous Region Water Resources Development Center, Hohhot 010020, China
Lin Yang: College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
Yali Wang: Inner Mongolia Autonomous Region Water Resources Development Center, Hohhot 010020, China
Heng Du: Dalat Banner Integrated Service Center for Natural Resources, Ordos 014300, China
Tong Wang: Dalat Banner Mining Development Coordination and Service Center, Ordos 014319, China
Weiying Feng: School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Corresponding author.

Journal volume & issue: Vol. 303
p. 109020

Abstract

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Globally, water scarcity threatens food security, especially in arid and semi-arid food-producing regions, such as the Hetao Irrigation District (HID), where the water consumption during the non-growth season (spring irrigation, autumn irrigation) accounts for more than 30 % of the total irrigation volume. Meanwhile, mapping the characteristics of spatial and temporal evolution of the area of cropland irrigated in the spring and autumn and the pattern of water consumption is crucial for strengthening the management of agricultural water use. Evaporation and infiltration of irrigation water are difficult to capture in time due to insufficient timeliness or accuracy of single remote sensing data. This study integrates seven remote sensing datasets (Landsat5, Landsat7, Landsat8, HJ-1A/B, GF-1, Sentinel-2 and MODIS) for the first time to build a high spatial-temporal resolution dataset, and combines the water index NDWI and MNDWI to extract the maximum water range formed after irrigation by manually adjusting the threshold method. In addition to the global land use/cover dataset (GLC FCS30–1985_2020), the cropland layer was superimposed to accurately identify the cropland spring irrigation and autumn irrigation range from 2000 to 2021 in the HID. In the past 20 years, spring-irrigated (SI) areas increased by 1012.60 km2 (+49.96 %), and the autumn-irrigated (AI) areas decreased by 512.63 km2 (-11.02 %). Combined with the quantity of water diversion and displacement, the characteristics of irrigation water consumption in the non-growth season were further analysed. The results showed that the water consumption of spring irrigation increased by 0.67×108 m3 (+22.26 %), and that of autumn irrigation increased by 4.34×108 m3 (+38.82 %). The decrease of autumn- irrigated area and the increase of water consumption were mainly related to the stability of autumn irrigation water, imperfect irrigation and drainage conditions and insufficient field water management. In 20202021, the area of non-growth “autumn irrigation - spring irrigation” repeated irrigation is about 1271.52 km2, which can be used as a key control area. This study provides a theoretical basis and direction for rational water use in non-growth seasons of irrigation districts.

Published in Agricultural Water Management

ISSN: 1873-2283 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Agriculture: Agriculture (General); Social Sciences: Industries. Land use. Labor: Special industries and trades: Agricultural industries
Website: https://www.sciencedirect.com/journal/agricultural-water-management

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