Rudiyanto Rudiyanto

Peatlands are globally recognized for their high carbon stock. Worldwide estimates of soil carbon stocks have improved in the last decade due to the availability of large soil datasets and wide application of digital topsoil mapping. However, most mapping studies focus on mineral soils and do not include peatlands, leading to uncertainties in the g...

More than 50% of the world’s population consumes rice. Accurate and up-to-date information on rice field extent is important to help manage food and water security. Currently, field surveys or MODIS satellite data are used to estimate rice growing areas. This study presents a cost-effective methodology for near-real-time mapping and monitoring of r...

Peatlands offer a series of ecosystem services including carbon storage, biomass production, and climate regulation. Climate change and rapid land use change are degrading peatlands, liberating their stored carbon (C) into the atmosphere. To conserve peatlands and help in realising the Paris Agreement, we need to understand their extent, status, an...

Tropical peatland holds a large amount of carbon in the terrestrial ecosystem. Indonesia, responding to the global climate issues, has legislation on the protection and management of the peat ecosystem. However, this effort is hampered by the lack of fine-scale, accurate maps of peat distribution and its thickness. This paper presents an open digit...

Distribution of carbon stock below the ground of peatland of Industrial Forest Plantation in South Sumatera, Indonesia was estimated by combining an empirical peat depth model with GIS tools. The proposed peat depth model was fitted to 124 observed peat depths and showed good agreement. After that the peat depths spatial data were derived using com...

Hydrological models are necessary in assessing water resources and valuable tool for water resources management. This paper describes applications of Tank model, storage function model and artificial neural networks (ANN) for Cidanau watershed in Indonesia. The Tank model consists of a series of 4 tanks and 5 outflows with 12 independent parameters...

The objective of this paper is to apply a simple algorithm of Kalman Filter, wich is know as noise data filtering. The computer program was written in Macro Visual Basic in MS Exel. Testings were carried out on available temperature, Water level and force data and then were comared with the mooving average method. The result shows that the algorith...

Pitcher is a bottlelike emitter made of porous baked-clay that is designed to be able to release water through its wall into the surrounding soil. In irrigation practice water level inside the pitcher is maintained by means of a constant water level supplier, or mariotte tube. This research looks at how the pitcher can also release nutrients when f...

Determination of Soil Volumetric Water Content and Dry Bulk Density Using ADR Probe with Artificial Neural Network

Informasi mengenai property sifat fisik tanah sangat penting dalam bidang ilmu tanah. Saat ini pengulcuran sifat fis~k tanah lebih banyak dilalrukan di Iaboratorium dengan mengambil sample tanah di lapang. Tentunya cara ini akan mernbutuhkan biaya, waktu dan tenaga lebrh besar jllca dibandingkan dengan penghan in situ. Pa& rrakalah ini akan dibaha...