摘 要:遥感技术以其时效高、范围广、成本低等突出优势被广泛应用于农作物空间格局监测中,在农作物种植面积、复种模式以及种植方式上是一种新的科学技术手段,有利于掌握大区域尺度农作物的生长信息。遥感技术监测通过识别绿色植物光谱特征来区分农作物种植面积;通过同一地区生长季节内植被指数时间序列数据拟合生长曲线,进行复种模式监测;最后根据时间序列遥感数据,区分农作物生长周期,进行种植方式监测。遥感技术在农作物空间格局监测上的应用,是打造及精准农业的强大助力。
关键词:遥感技术 农作物空间格局 种植面积 复种模式 种植方式
中图分类号:S127 文献标识码:A 文章编号:1672-3791(2021)11(a)-0000-00
The Role of Remote Sensing Technology in Monitoring Spatial Pattern of Crops
TANG Chenguang
(Huaihua Polytechnic College, Huaihua, Hunan Province, 418000 China)
Abstract: Remote sensing technology has been widely used in monitoring the spatial pattern of crops due to its outstanding advantages of high time-effectiveness, wide range and low cost. It is a new scientific and technological means in terms of crop planting area, multiple cropping pattern and planting mode, which is beneficial to master the growth information of crops at large regional scale. Remote sensing technology can distinguish the planting area of crops by identifying the spectral characteristics of green plants. The multiple cropping pattern was monitored by fitting the growth curve with the vegetation index time series data in the same growing season. Finally, according to the time series remote sensing data, the growth cycle of crops is distinguished and the planting pattern is monitored. The application of remote sensing technology in monitoring the spatial pattern of crops is a powerful help to build and quasi-agriculture.
Key Words: Remote sensing technology; Spatial pattern of crops; Planting area; Multiple cropping mode; Planting method
農作物空间格局指的是某个地区作物种植结构、一年几熟以及种植方式的综合表述,具体来说,体现在种植什么与在哪里种、一年几熟以及在连作、轮作、间种、套种等中选择如何进行种植。农作物空间格局的提出为人们详细了解一个地区作物种类、结构与分布特点提供重要信息,也为人们调整、优化作物结构提供可靠依据,有利于人们了解农业资源在空间范围中的生产状况。同时,研究农作物空间格局特征以及它的时间变化信息对农业发展有着重要影响,主要体现在农业生态系统对地球碳循环的影响、全球变化对农业生产的影响以及农作物空间动态变化的建立机制上。所以,从农业长期发展的角度来看,对农业空间格局进行监测具有深远且重要的意义。……