Continual observation on crop leaf area index using wireless sensors network
نویسندگان
چکیده
منابع مشابه
Observation and Cloud Storage of Crop Leaf Area Index Using Wireless Sensor Network
With the growing population and the ever growing demand for rain, the scientists and researchers across the globe are busy trying to find innovative ways to meet these ever surging demands in deforestation. This paper deals with the growth of forest by measuring Leaf area index (LAI). The collection of ground measurements for validating remotely sensed crop leaf area index (LAI) is labor and ti...
متن کاملInvestigating the 15-year-old seasonal variations in leaf area index using MODIS sensors in Iran
Today, it is widely used satellite imagery to monitor vegetation cover. The aim of this study is to analyses the leaf area in the period of 1395-1381 with the spatial resolution of a kilometer using the data of two remote sensing products of MODIS Terra and Aqua and seasonally. For this purpose, data were analyzed and statistical-mathematical compilation, coding and database creation were done ...
متن کاملLeaf area index measurements
Leaf area index (LAI) is a key structural characteristic of forest ecosystems because of the role of green leaves in controlling many biological and physical processes in plant canopies. Accurate LA1 estimates are required in studies of ecophysiology, atmosphere-ecosystem interactions, and global change. The objective of this paper is to evaluate LA1 values obtained by several research teams us...
متن کاملPotential and Limits of Retrieving Conifer Leaf Area Index Using Smartphone Camera Sensors
Plant leaf area index (LAI) is a key characteristic affecting field canopy microclimate. In addition to traditional professional measuring instruments, smartphone camera sensors have been used to measure plant LAI. However, when smartphone methods were used to measure conifer forest LAI, very different performances were obtained depending on whether the smartphone was held at the zenith angle o...
متن کاملRetrieving Leaf Area Index (LAI) Using Remote Sensing: Theories, Methods and Sensors
The ability to accurately and rapidly acquire leaf area index (LAI) is an indispensable component of process-based ecological research facilitating the understanding of gas-vegetation exchange phenomenon at an array of spatial scales from the leaf to the landscape. However, LAI is difficult to directly acquire for large spatial extents due to its time consuming and work intensive nature. Such e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP Conference Series: Earth and Environmental Science
سال: 2014
ISSN: 1755-1315
DOI: 10.1088/1755-1315/17/1/012269