Analysis of Spatiotemporal Variation of Site-Specific Management Zones in a Topographic Relief Area over a Period of Six Years Using Image Segmentation and Satellite Data,Canadian Journal of Remote Sensing

当前位置： X-MOL 学术 › Can. J. Remote Sens. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Analysis of Spatiotemporal Variation of Site-Specific Management Zones in a Topographic Relief Area over a Period of Six Years Using Image Segmentation and Satellite Data
Canadian Journal of Remote Sensing ( IF 2.0 ) Pub Date : 2019-11-02 , DOI: 10.1080/07038992.2019.1690439
Zhengchao Qiu _{1,

2,

3} , Huanjun Liu _{1,

2} , Xinle Zhang ₂ , Linghua Meng _{1,

2} , Mengyuan Xu ₂ , Yue Pan ₂ , Yilin Bao ₂ , Shengnan Yu ₂

Affiliation

Abstract Over fertilization has resulted in serious soil compaction and acidification, as well as nonpoint pollution. A strategy for variable fertilization according to Site-Specific Management Zones (SSMZ) is urgently needed. We developed an object-oriented method using image segmentation for SSMZ delineation for a farming cooperative founded in 2013 in northeastern China. The method is based on Normalized Difference Vegetation Index (NDVI) during the crop growth period from 2011 to 2016. We analyzed and validated SSMZ results with plant sampling data, NDVI, soil temperature and moisture. The results indicated that (i) SSMZs derived from NDVI and image segmentation enhanced the difference between SSMZs and the homogeneity within SSMZs; (ii) crop dry biomass was consistent with NDVI, and NDVI showed a clear change in the regular SSMZ pattern with terrain variation after 2013; and (iii) SSMZ patterns were mainly affected by different farming practices or by topographic factors before and after the cooperative was founded. This new approach for SSMZ delineation will accelerate the application of precision agriculture in relief areas. If the study results are applied to other areas, the main factors of SSMZ need to be determined because of climate differences as well as specific soil and terrain conditions.

更新日期：2019-11-02

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11