Landsat time series reveal simultaneous expansion and intensification of irrigated dry season cropping in Southeastern Turkey

IF 2.7 4区环境科学与生态学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of Land Use Science Pub Date : 2021-01-02 DOI:10.1080/1747423x.2020.1858198

Philippe Rufin, D. Müller, M. Schwieder, Dirk Pflugmacher, P. Hostert

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引用次数: 9

Abstract

ABSTRACT Long-term monitoring of the extent and intensity of irrigation systems is needed to track crop water consumption and to adapt land use to a changing climate. We mapped the expansion and changes in the intensity of irrigated dry season cropping in Turkey´s Southeastern Anatolia Project annually from 1990 to 2018 using Landsat time series. Irrigated dry season cropping covered 5,779 km² (± 479 km²) in 2018, which represents an increase of 617% over the study period. Dry season cropping was practiced on average every second year, but spatial variability was pronounced. Increases in dry season cropping frequency were observed on 40% of the studied croplands. The presented maps enable the identification of land use intensity hotspots at 30 m spatial resolution, and can thus aid in assessments of water consumption and environmental degradation. All maps are openly available for further use at https://doi.org/10.5281/zenodo.4287661.

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陆地卫星时间序列揭示了土耳其东南部灌溉旱季作物的同时扩大和强化

摘要：需要对灌溉系统的范围和强度进行长期监测，以跟踪作物耗水量，并使土地利用适应不断变化的气候。从1990年到2018年，我们利用陆地卫星时间序列绘制了土耳其东南安纳托利亚项目每年灌溉旱季种植强度的扩展和变化图。2018年，灌溉旱季作物覆盖面积为5779平方公里（±479平方公里），在研究期间增长了617%。旱季种植平均每两年进行一次，但空间变异性明显。在40%的研究耕地上观察到旱季种植频率的增加。所提供的地图能够以30米的空间分辨率识别土地利用强度热点，从而有助于评估耗水量和环境退化。所有地图均可在https://doi.org/10.5281/zenodo.4287661.

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来源期刊

Journal of Land Use Science Environmental Science-Management, Monitoring, Policy and Law

CiteScore

5.40

自引率

6.20%

发文量

期刊介绍： The Journal of Land Use Science provides a central outlet for high-quality articles on theoretical and empirical aspects of land-use science at the interface of social and environmental systems. The Journal brings together an array of research perspectives at multiple temporal, spatial and social scales that contribute a better understanding of land-system dynamics and communicate scientific advances towards attaining land-system sustainability.