[1]付静,和玉璞,胡梦阳,等.基于遥感反演的南方丘陵灌区农田灌溉水量估算[J].江苏水利,2023,(10):9-14,21.
 FU Jing,HE Yupu*,HU Mengyang,et al.Estimation of farmland irrigation water in southern hilly irrigation area based on remote sensing inversion[J].JIANGSU WATER RESOURCES,2023,(10):9-14,21.
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基于遥感反演的南方丘陵灌区农田灌溉水量估算()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年10期
页码:
9-14,21
栏目:
农村水利
出版日期:
2023-10-15

文章信息/Info

Title:
Estimation of farmland irrigation water in southern hilly irrigation area based on remote sensing inversion
文章编号:
1007-7839(2023)10-0009-0006
作者:
付静1和玉璞1胡梦阳2孙浩3麦紫君1史一平4
(1. 南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏 南京 210029;2. 河海大学农业科学与工程学院,江苏 南京 210029;3. 江苏省农村水利科技发展中心,江苏 南京 210029;4. 高淳区水务局,江苏 南京 211301)
Author(s):
FU Jing1 HE Yupu1* HU Mengyang2 SUN Hao3 MAI Zijun1 SHI Yipin4
(1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;2. College of Agricultural Science and Engineering, Hohai University, Nanjing 210029, China;3. Jiangsu rural water conservancy science and Technology Development Center, Nanjing 210029, China;4. Gaochun District Water Affairs Bureau, Nanjing 211301, China)
关键词:
种植结构灌区植被指数灌溉面积灌溉用水量
Keywords:
planting structure irrigation district vegetation index irrigation area irrigation water consumption
分类号:
S274.4
文献标志码:
B
摘要:
针对我国南方丘陵灌区水源广布、灌溉面积及用水量统计工作难度较大的问题,综合利用遥感影像和水量监测数据估算农田灌溉水量,分析灌溉前后水稻植被水分指数及其差值的变化特征,确定实际灌溉面积的临界阈值,进行稻田实际灌溉面积识别。以江苏省淳东灌区为例进行应用,结果表明:验证区域内基于提取的种植结构估算的灌水量1 400.80 m3与实测灌水量1 370.44 m3相差仅30.36 m3,精度较高;MSI反演稻田实际灌溉面积精度整体较MSII高,最高可达93.42%;淳东灌区在水稻生育期内总灌溉用水量5 108.84万m3,其中7月和8月的灌溉用水量占比较大,分别占总灌溉用水量的39.49%和30.59%,与实际情况相符。基于遥感影像反演的灌溉用水量可为农灌用水量统计数据合理性提供技术支撑。
Abstract:
In view of the problems of wide distribution of water sources and the great difficulty in statistics of irrigation area and water consumption in hilly irrigation areas in southern China, remote sensing images and water monitoring data were used to estimate the irrigation water amount of farmland, analyze the variation characteristics of vegetation moisture index of rice and its difference, to determine the critical threshold of actual irrigation area and identify the actual irrigated area of rice field. Taking Chundong irrigated area of Jiangsu Province as an example, the results showed that: (1) There was only 30.36 m3 difference between the estimated irrigation amount of 1 400.80 m3 based on the extracted planting structure and the measured irrigation amount of 1 370.44 m3, showing a high accuracy. (2) The accuracy of MSI inversion of actual irrigated area of rice field is higher than that of MSII, up to 93.42%. (3) The total irrigation water consumption in the growing period of rice in Chundong irrigation area was 5.0884 million m3. The irrigation water consumption in July and August accounted for 39.49% and 30.59% of the total irrigation water consumption respectively, which was consistent with the actual situation. Irrigation water consumption based on remote sensing image inversion can provide technical support for the rationality of agricultural irrigation water consumption statistical data.

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备注/Memo

备注/Memo:
收稿日期:2023-07-04
基金项目:江苏省水利科技项目(2021052),国家自然科学基金(51609141),南京水利科学研究院中央级公益性科研院所基本科研业务费专项资金项目(Y9210013,Y919016)
作者简介:付静(1992—),女,工程师,硕士,主要从事农田高效灌溉排水理论与环境效应研究。E-mail:fujing1219@163.com
通信作者:和玉璞(1987—),男,高级工程师,博士,主要从事农田高效灌溉排水理论与环境效应研究。E-mail:heyupu28@163.com
更新日期/Last Update: 2023-10-15