干旱区生态环境知识资源中心(Arid): Crops planting structure and karst rocky desertification analysis by Sentinel-1 data

Arid

DOI	10.1515/geo-2020-0272
	Crops planting structure and karst rocky desertification analysis by Sentinel-1 data
	Wang, Lingyu; Chen, Quan; Zhou, Zhongfa; Zhao, Xin; Luo, Jiancheng; Wu, Tianjun; Sun, Yingwei; Liu, Wei; Zhang, Shu; Zhang, Wenhui
通讯作者	Zhou, ZF (corresponding author), Guizhou Normal Univ, Sch Karst Sci, Sch Geog & Environm Sci, Guiyang 550001, Peoples R China. ; Zhou, ZF (corresponding author), State Engn Technol Inst Karst Desertificat Contro, Guiyang 550001, Peoples R China.
来源期刊	OPEN GEOSCIENCES
ISSN	2391-5447
出版年	2021
卷号	13 期号:1 页码:867-879
英文摘要	Accurate crop planting structure (CPS) information and its relationship with the surrounding special environment can provide strong support for the adjustment of agricultural structure in areas with limited cultivated land resources, and it will help regional food security, social economy, and ecological balance adjustment. However, due to the perennial cloudy, rainy, and scattered arable land in Karst mountainous areas, the monitoring of planting structure by traditional remote sensing methods is greatly limited. In this regard, we focus on synthetic aperture radar (SAR) remote sensing, which can penetrate clouds and rain, without light constraints to image. In this article, based on parcel-based temporal sequence SAR, the CPS in South China karst area was extracted by deep learning technology, and the spatial coupling relationship between CPS and karst rocky desertification (KRD) was analyzed. The results showed that: (a) The overall accuracy of CPS classifica-tion was 75.98%, which proved that the geo-parcel-based time series SAR has a good effect for the CPS mapping in the karst mountainous areas; (b) Through the analysis of the spatial relationship between the planting structure and KRD, we found that the lower KRD level caused the simpler CPS and the higher KRD grade caused more complex CPS and more richer landscape types. The spatial variation trend of CPS landscape indicates the process of water shortage and the deepening of KRD in farmland; (c) The landscape has higher connectivity (Contagion Index, CI 0.52-1.73) in lower KRD level and lower connectivity (CI 0.83-2.05) in higher KRD level, which shows that the degree of fragmentation and connection of CPS landscape is positively proportional to the degree of KRD. In this study, the planting structure extraction of crops under complex imaging environment was realized by using the farmland geo-parcels-based time series Sentinel-1 data, and the relationship between planting structure and KRD was analyzed. This study provides a new idea and method for the extraction of agricultural planting structure in the cloudy and rainy karst mountainous areas of Southwest China. The results of this study have certain guiding significance for the adjustment of regional agricultural planting structure and the balance of regional development.
英文关键词	crop planting structure time series SAR karst rocky desertification farmland geo-parcels
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000710099700001
WOS关键词	LAND-USE ; CLASSIFICATION ; AGRICULTURE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367980
作者单位	[Wang, Lingyu; Chen, Quan; Zhou, Zhongfa; Zhao, Xin; Zhang, Shu; Zhang, Wenhui] Guizhou Normal Univ, Sch Karst Sci, Sch Geog & Environm Sci, Guiyang 550001, Peoples R China; [Zhou, Zhongfa] State Engn Technol Inst Karst Desertificat Contro, Guiyang 550001, Peoples R China; [Luo, Jiancheng; Sun, Yingwei; Liu, Wei] Chinese Acad Sci, State Key Lab Remote Sensing Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China; [Wu, Tianjun] Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lingyu,Chen, Quan,Zhou, Zhongfa,et al. Crops planting structure and karst rocky desertification analysis by Sentinel-1 data[J],2021,13(1):867-879.
APA	Wang, Lingyu.,Chen, Quan.,Zhou, Zhongfa.,Zhao, Xin.,Luo, Jiancheng.,...&Zhang, Wenhui.(2021).Crops planting structure and karst rocky desertification analysis by Sentinel-1 data.OPEN GEOSCIENCES,13(1),867-879.
MLA	Wang, Lingyu,et al."Crops planting structure and karst rocky desertification analysis by Sentinel-1 data".OPEN GEOSCIENCES 13.1(2021):867-879.