干旱区生态环境知识资源中心(Arid): Machine learning algorithm for estimating karst rocky desertification in a peak-cluster depression basin in southwest Guangxi, China

Arid

DOI	10.1038/s41598-022-21684-5
	Machine learning algorithm for estimating karst rocky desertification in a peak-cluster depression basin in southwest Guangxi, China
	Zhang, Yali; Tian, Yichao; Li, Ying; Wang, Donghua; Tao, Jin; Yang, Yongwei; Lin, Junliang; Zhang, Qiang; Wu, Luhua
通讯作者	Tian, YC
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2022
卷号	12 期号:1
英文摘要	Karst rocky desertification (KRD) has become one of the most serious ecological and environmental problems in karst areas. At present, mapping KRD with a high accuracy and on a large scale is still a difficult problem in the control of KRD. In this study, a random forest (RF) based on maximum information coefficient and correlation coefficient feature selection is proposed to predict KRD. Nine predictors stood out as feature factors to estimate KRD. Rock exposure was the most important predictor, followed by fractional vegetation cover for the prediction of KRD processes. The kappa and classification accuracy indexes were to evaluate the performance of the model. We recorded overall accuracy rate and kappa index values of 94.7% and 0.92 for the testing datasets respectively. The RF model was then used to predict the KRD in 2001, 2011, 2016, and 2020, and it was found that the KRD in the study area has exhibited a positive trend of improvement. Therefore, the use of multisource remote sensing data combined with the RF model can obtain better prediction results of KRD, thereby providing a new idea for large-scale estimation of the KRD in peak-cluster depression.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000885173700110
WOS关键词	ESTIMATING ECOLOGICAL INDICATORS ; DRIVING FORCES ; RANDOM FOREST ; GUIZHOU PROVINCE ; LAND ; AREAS ; PREDICTION ; EVOLUTION ; REGION ; IMAGES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394457
推荐引用方式 GB/T 7714	Zhang, Yali,Tian, Yichao,Li, Ying,et al. Machine learning algorithm for estimating karst rocky desertification in a peak-cluster depression basin in southwest Guangxi, China[J],2022,12(1).
APA	Zhang, Yali.,Tian, Yichao.,Li, Ying.,Wang, Donghua.,Tao, Jin.,...&Wu, Luhua.(2022).Machine learning algorithm for estimating karst rocky desertification in a peak-cluster depression basin in southwest Guangxi, China.SCIENTIFIC REPORTS,12(1).
MLA	Zhang, Yali,et al."Machine learning algorithm for estimating karst rocky desertification in a peak-cluster depression basin in southwest Guangxi, China".SCIENTIFIC REPORTS 12.1(2022).