Results 41 to 50 of about 2,173 (213)

Trees Outside Forests (TOFs): A Global Review of Methodological Advances, Limitations, and Framework Innovations

International Journal of Forestry Research, Volume 2026, Issue 1, 2026.
Trees outside forests (TOFs) represent an important natural and anthropogenic resource that contributes significantly to biodiversity conservation, climate resilience, and the protection of forest genetic resources (FGRs). Despite their ecological and socioeconomic importance, TOFs are increasingly declining due to land‐use changes, urbanization ...
Aman Dabral, Pawan Kumar Thakur, Maneesh S. Bhandari, Vishal Johar, Vinita Bisht, Shailesh Pandey, Rama Kant, Rajendra K. Meena, Himanshu Saini, Poulami Jha   +9 more
wiley   +1 more source

Concurrent Response of Soybean to Fixed (Full and Limited) and Variable Rate Irrigation Management in Three Soil Types: II. Growth, Yield, Evapotranspiration and Water Productivity

Irrigation and Drainage, Volume 74, Issue 5, Page 1874-1888, December 2025.
ABSTRACT Soybean growth, yield, crop evapotranspiration (ETc) and crop water use efficiency (CWUE or crop water productivity, CWP) under different irrigation levels in three different soil types in the same field were investigated concurrently. Treatments in each soil type were: (i) variable rate irrigation (VRI), (ii) fixed rate full irrigation (FR‐1″)
S. Irmak, T. A. Hinn
wiley   +1 more source

Unsupervised Segmentation of Remote Sensing Images using FD Based Texture Analysis Model and ISODATA

, 2017
In this paper, an unsupervised segmentation methodology is proposed for remotely sensed images by using Fractional Differential (FD) based texture analysis model and Iterative Self-Organizing Data Analysis Technique Algorithm (ISODATA).
S. Hemalatha, S. Margret Anouncia
core   +1 more source

Estimation model of wild fractional vegetation cover based on RGB vegetation index and its application

Open Geosciences
An accurate survey of field vegetation information facilitates the evaluation of ecosystems and the improvement of remote sensing models. Extracting fractional vegetation cover (FVC) information using aerial images is one of the important areas of ...
Dai Shaojun, Zhou Jian, Ning Xianping, Xu Jianxin, Wang Hua   +4 more
doaj   +1 more source

Reconstruction of spatially continuous time-series land subsidence based on PS-InSAR and improved MLS-SVR in Beijing Plain area

GIScience & Remote Sensing, 2023
Beijing has undergone severe settlement in recent years. Persistent Scatterers Interferometric Synthetic Aperture Radar (PS-InSAR) technique has been widely used to derive time-series land deformation. However, existing studies have faced two challenges:
Mingyuan Lyu, Xiaojuan Li, Yinghai Ke, Jiyi Jiang, Lin Zhu, Lin Guo, Huili Gong, Beibei Chen, Zhihe Xu, Ke Zhang, Zhanpeng Wang   +10 more
doaj   +1 more source

Multiparameter MRI ISODATA characterizes ischemic damage [PDF]

Stroke, 2001
P23 Purpose: We present a tissue characterization method to identify viable and non-viable tissue in cerebral ischemia using multi-parameter MRI. The method utilizes T1, T2, proton density, and diffusion weighted images (T1WI, T2WI, PDWI, DWI, respectively).
Hamid Soltanian-Zadeh, Rabih Hammoud, Michael A Jacobs, Mei Lu, Suresh C Patel, Panayiotis D Mitsias, Mamatha Pasnoor, Robert A Knight, Zhang G Zheng, Michael Chopp   +9 more
openaire   +1 more source

An Acoustic Propagation‐Guided Scaling Clustering Method of Ocean Sound Speed Gradients and Environmental Effect Analysis

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract The use of unsupervised clustering methods to classify hydroacoustic profiles with similar structures in the study area, and subsequently divide them into distinct marine regions based on acoustic propagation characteristics, facilitates targeted research on the environmental effects of underwater acoustics in different sea areas.
Jiawei Jiang, Lin Zhang
wiley   +1 more source

Abordagem metodológica baseada em imagens do SAR-R99B para identificar prováveis pistas de pouso não-homologadas na Amazônia Methodological approach based on SAR-R99B radar images to identify potential unofficial airplane strips in Amazonia

Acta Amazonica, 2009
Este estudo apresenta uma abordagem metodológica baseada em imagens de radar e nos critérios de tonalidade, tamanho e forma geométrica para identificar prováveis pistas de pouso não-homologadas na Amazônia.
Sergio Alexandre Saloio Alves, Luis Ricardo Assante, Edson Eyji Sano, Paulo Roberto Meneses   +3 more
doaj   +1 more source

MONITORING THE RATE OF EXPANSION OF AGRICULTURAL FIELDS IN MWEKERA FOREST RESERVE USING REMOTE SENSING AND GIS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Rapid population growth and rural-urban migration amidst limited job opportunities lead to conversion of land from forests into agriculture and other land uses.
K. Kanja, M. Mwemba, K. Malunga
doaj   +1 more source

Sustainability of Boro rice cultivation in the canal irrigated command area of India

Journal of Water and Climate Change, 2022
A comprehensive assessment and monitoring of rice intensification in canal irrigated command areas and its consequences on groundwater dynamics have enormous importance for the water–food–energy nexus. This study analyzed the spatiotemporal transition of
Sucharita Pradhan, Anirban Dhar, Kamlesh Narayan Tiwari   +2 more
doaj   +1 more source