Long-term monitoring of citrus orchard dynamics using time-series Landsat data: a case study in southern China

doi:10.1080/01431161.2018.1483088

	Long-term monitoring of citrus orchard dynamics using time-series Landsat data: a case study in southern China
	Xu, Hanzeyu 1; Qi, Shuhua 1,2; Gong, Peng 3; Liu, Chong 1,2; Wang, Junbang 4
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2018
卷号	39 期号:22 页码:8271-8292
ISSN号	0143-1161
DOI	10.1080/01431161.2018.1483088
通讯作者	Liu, Chong(liuchong@jxnu.edu.cn)
英文摘要	Citrus orchard planting is a typical land-use change process that can impact terrestrial ecosystem services both locally and globally. Longterm monitoring of citrus orchard dynamics is critical for understanding its change patterns as well as the potential driving factors. Satellite remote-sensing imagery has been a primary data source for this purpose. However, most previous studies with multi-year intervals only captured some, but not all detailed information on citrus orchard expansion. In this study, we developed a framework for mapping annual citrus orchard extent and track its long-term dynamics in Xunwu County, China, using the historical Landsat repository from 1990 to 2016. The results suggested that the average overall accuracy of original annual mapping was 87.73%, and its performance was significantly improved after the temporal filtering approach (91.46%). Several features (e.g. elevation, slope, normalized difference vegetation index) played more important roles in citrus orchard identification. With the achieved annual mapping layers, we found a rapid citrus orchard expansion trend during the study interval (i.e. from 22.18 to 697.21 km(2)). Moreover, this expansion process was unevenly distributed in time. Spatially, emerging citrus orchards were primarily transformed from forests and croplands and mainly distributed in areas with elevations from 200 to 500 m and slopes range from 5 degrees to 20 degrees. This study demonstrated the potential of mapping citrus orchard dynamics at a higher temporal frequency with remote-sensing time-series, which can contribute to providing reference for sustainable land-use policy.
资助项目	National Natural Science Foundation of China[41601453] ; Jiangxi Province Natural Science Foundation[20161BAB213078] ; Collaborative Innovation Center for Major Ecological Security Issues of Jiangxi Province and Monitoring Implementation[JXS-EW-00]
WOS关键词	COVER CLASSIFICATION ; RIVER DELTA ; EXPANSION ; FOREST ; URBAN ; DETERMINANTS ; LANDSCAPE ; TM
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000456452100019
资助机构	National Natural Science Foundation of China ; Jiangxi Province Natural Science Foundation ; Collaborative Innovation Center for Major Ecological Security Issues of Jiangxi Province and Monitoring Implementation
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50447]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Chong
作者单位	1.Jiangxi Normal Univ, Sch Geog & Environm, Nanchang, Jiangxi, Peoples R China 2.Jiangxi Normal Univ, Minist Educ, Key Lab Poyang Lake Wetland & Watershed Res, Nanchang 330022, Jiangxi, Peoples R China 3.Tsinghua Univ, Minist Educ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hanzeyu,Qi, Shuhua,Gong, Peng,et al. Long-term monitoring of citrus orchard dynamics using time-series Landsat data: a case study in southern China[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2018,39(22):8271-8292.
APA	Xu, Hanzeyu,Qi, Shuhua,Gong, Peng,Liu, Chong,&Wang, Junbang.(2018).Long-term monitoring of citrus orchard dynamics using time-series Landsat data: a case study in southern China.INTERNATIONAL JOURNAL OF REMOTE SENSING,39(22),8271-8292.
MLA	Xu, Hanzeyu,et al."Long-term monitoring of citrus orchard dynamics using time-series Landsat data: a case study in southern China".INTERNATIONAL JOURNAL OF REMOTE SENSING 39.22(2018):8271-8292.