生态学杂志2013，Vol.32Issue(3)：536-541,6.
长期土壤肥力因子变化及其与植被指数耦合关系
Long-term changes of soil fertility factors and their relationships with NDVI
摘要
Abstract
Taking the Nanning and Chongzuo of Guangxi Province, South China as test areas, and by using the time-series NDVI of AVHRR and MODIS sensors and the soil data in 1981 and 2011, this paper analyzed the relationships between the normalized difference vegetation index (NDVI) and soil fertility factors, and the correlations between the long-term changes of the NDVI and soil fertility factors. In recent 30 years, the soil pH in test areas declined significantly, while the soil total nitrogen, available phosphorus, and available potassium contents had a significant increase. Meanwhile, the NDVI presented an overall slow-increasing trend, and the changes of the NDVI had significant positive relationships with those of the soil organic matter and total nitrogen, suggesting that the time-series NDVI could be used to indicate the changes of soil organic matter and total nitrogen to some extent, and hence, provide a feasible method for monitoring the long-term change of soil fertility.关键词
土壤肥力/监测/NDVI/长期变化Key words
soil fertility/ monitoring/ NDVI/ long-term change分类
农业科技引用本文复制引用
李燕丽,潘贤章,周睿,王昌昆,刘娅,石荣杰,陈冬峰,赵其国..长期土壤肥力因子变化及其与植被指数耦合关系[J].生态学杂志,2013,32(3):536-541,6.基金项目
国家自然科学基金重点项目(U1033004)和中国科学院战略先导性项目(XDA05050509)资助. （U1033004）
