Variogram analysis for assessing landscape spatial heterogeneity in NDVI: An example applied to agriculture in the Jiansanjiang Reclamation area, Northeast China

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 生态过程与重建研究中心

	Variogram analysis for assessing landscape spatial heterogeneity in NDVI: An example applied to agriculture in the Jiansanjiang Reclamation area, Northeast China
	Wen, Zhaofei1,2 ; Wu, Shengjun1 ; Liu, Feng 1; Zhang, Shuqing 2; Dale, Patricia 3
	2013
会议日期	July 26, 2013 - July 28, 2013
会议地点	Nanjing, China
页码	504-508
英文摘要	It is necessary to characterize and monitor the spatial heterogeneity of agricultural landscapes, to assist the spatial understanding of some related agricultural processes and to predict food production patterns. In the study, variogram models fitted to empirical variograms are proposed to retrieve spatial heterogeneity characteristics, and they are applied to NDVI data generated from Landsat TM imagery at a 30 m pixel scale. Four representative study sites with distinct landscape patterns, located in the Honghe farm of Jiansanjiang Reclamation Area, Northeast China, were selected for spatial heterogeneity testing and analyzing. The results provided quantitative agricultural landscape knowledge: (1) the agricultural landscape heterogeneity at different directions within the study area could be effectively quantified with the variogram model and then interpreted; (2) the spatial heterogeneity of the dry land matrix was normally larger than that of the paddy field matrix; and (3) the agricultural spatial heterogeneity was affected by two factors: the land use type and the distribution pattern of land use types. As remote sensing techniques can now provide various types of surface monitoring data, we argue that quantitative variogram analysis of the data for spatial heterogeneity can help identify explain related ecological phenomena. It could also be used to improve quantitative agricultural remote sensing monitoring in a spatial heterogeneity area as well. © 2013. The authors.
会议录	2013 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2013
语种	英语
内容类型	会议论文
源URL	[http://119.78.100.138/handle/2HOD01W0/4779]
专题	生态过程与重建研究中心
作者单位	1.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401120, China; 2.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China; 3.Environmental Futures Centre, Griffith School of Environment, Griffith University, Brisbane, Nathan QLD 4111, Australia
推荐引用方式 GB/T 7714	Wen, Zhaofei,Wu, Shengjun,Liu, Feng,et al. Variogram analysis for assessing landscape spatial heterogeneity in NDVI: An example applied to agriculture in the Jiansanjiang Reclamation area, Northeast China[C]. 见:. Nanjing, China. July 26, 2013 - July 28, 2013.