Run off and infiltration studies at Lake Maninjau catchment area

June 3, 2019

On Mei 2019, Coordinated by Dr. Iwan Ridwansyah with Dr. Apip and Dr. Luki Subehi as a team member, conducted run off and infiltration studies at Lake Maninjau catchment area – West Sumatera.
As we know, Lake Maninjau has one outlet and several inlets (small river and stream), including intermittent river.
We investigated the run off and infiltration rate during rainfall (especially) as shown in this video



International Field Biology Course 2019 – In Preparation

May 14, 2019

In order to prepare the workshop of IFBC (International Field Biology Course) on August 27, 2019, the committee with Prof. Hiromi Uno have visited the several potential sites for workshop on April 27 – 29, 2019.  We visited Ciliwung, Citarum, and Cisadane upstream rivers.  Based on discussion and checked at field, The Citarum upstream river at Cibodas Botanical Garden – LIPI has been selected as our site event for the workshop.

The demonstration how to measure & collect samples in this workshop are:

  • Discharge
  • Slope (topographic map)
  • Densiometer (canopy openness)
  • Benthic invertebrates
  • Water quality
  • Algae

Previously, on April 26, 2019, one day seminar towards International Conference Troplimno 2019 with theme “spatial connectivity of stream food web” has been held at Research Centre for Limnology – LIPI.

For detail information, please visit it.

Some pictures:


– LS –

International Workshop on Development and Use of Multilingual Knowledgebase / Knowledgemining System (LAKES) – Shiga, February 25 – March 2, 2019

March 5, 2019

LAKES has been developed over the past decade at Research Center for Sustainability in collaboration with International Lake Environment Committee Foundation (ILEC).  It is designed for instantaneous ‘mining’ of a vast body of information and data, in the form of PDF format of Microsoft® Office products, i.e., Words, Excel, and Power Point, having been pre-compiled (pre-imported) into the System. The mining can be performed using free keywords as well as interchangeable thesauruses, i.e., rapidly identifying sentences, figures, tables, paragraphs, pages, chapters. The system has multi-lingual capacity for the Latin languages (e.g., French, Spanish, etc.) or the pseudo-Latin linguistic structure languages (e.g., Bahasa Malaysia, Bahasa Indonesia, Tagalog, etc.)

The specific purposes of this Workshop are for the participants to discuss and prepare to implement a dedicated SEAL-net knowledgebase/database system based on the above LAKES platform, i.e., a web-based version called LAKES3 for the regional protocol, and a stand-alone version called LAKES4 for the institution-specific intranet protocol.

In oder to prepare the launching of LAKES on International Conference TropLimno August 2019 The preliminary workshop has been held in Shiga, Japan for February 25 – March 2, 2019. Next, SealNet forum in TropLimno 2019 will be conducted, including introduce LAKES for ASEAN participants.

THA 2019 – International Conference on Water Management and Climate Change towards Asia’s Water-Energy-Food Nexus and SDGs

February 4, 2019

THA 2019 International Conference on Water Management and Climate Change towards Asia’s Water-Energy-Food NEXUS and SDGs has been held on January 23 – 25, 2019 in Bangkok, Thailand.

The objectives of the THA 2019 are to provide a platform among scientists and stakeholders to share and present new advances, research findings, perspectives, and experiences in Disaster Irrigation and Water Management towards WEF NEXUS and UN’s SGDs.

The THA 2019 covered four main topics including:

A. Climate Change and Uncertainty in Hydrology and Meteorology
B. Participatory Management for Water and Irrigation Project
C. Emerging/Digital Technologies in Water Management and Environment Towards Nexus (WEF) and SDGs (Big Data, IoT)
D. Disaster Management/ Groundwater Management

Other important event aslo conducted, ASEAN workshop on Water Management and Climate Change Towards Asia’s Water – Energy – Food Nexus and SDGs. The important result from this meeting are the understanding among ASEAN countries and plus (Japan, Korea and China) for working together (collaboration) face those problems. Integrating of land use (catchment) management, response to climate change and active in cooperation forum to solve the problem such as Asian Water Council (AWC) should be encouraged and strengthened as an “Advancing Partnership Sustainability”.

– LS –


Mengkonsumsi Air Hujan Sebagai Air Minum, Amankah Bagi Tubuh?

January 3, 2019 – Mungkin selama ini Anda bertanya-tanya, apakah minum air hujan aman bagi tubuh? Peneliti dari Monash University di Melbourne, Australia, melakukan penelitian untuk mencari jawabannya.Studi ini dilatarbelakangi oleh kekhawatiran tentang kerusakan lingkungan akibat limbah air kemasan seperti botol atau galon.

Peneliti mengamati 300 rumah yang menggunakan air hujan sebagai sumber air utama yang dikumpulkan dalam sebuah tangki. Kemudian, setiap keluarga akan mencatat kondisi kesehatan mereka selama lebih dari setahun. Hasilnya menunjukkan bahwa tingkat gastroenteritis atau flu perut–yang disebabkan oleh virus atau bakteri tertentu–di keluarga tersebut sangat mirip dengan masyarakat yang minum dari air keran yang terawat.  Artinya, mengonsumsi air hujan secara langsung cukup aman dari risiko penyakit.

Kepala unit penyakit menular di Departemen Epidemiologi Monash University, Karin Leder, mengatakan, orang yang minum air hujan secara langsung tidak menunjukkan adanya peningkatan risiko penyakit jika dibandingkan dengan mereka yang meminum air hujan yang telah disaring.  Dilansir dari Hello Sehat, air hujan memiliki sifat asam dengan pH rata-rata sekitar 5,6. Dan itu tidak berbahaya.

Meski begitu, air hujan tidak sepenuhnya bersih karena terdapat debu atau bakteri lainnya yang menempel pada air hujan.  Berikut tiga hal yang membuat air hujan tidak baik untuk diminum:

Minum air hujan yang jatuh di daerah pabrik atau kawasan industri

Field Survey – Lakes in West Sumatera

November 8, 2018

This survey was conducted from Oct 30 – Nov 9, 2018.  The 4 locations : Lake Maninjau, Lake Singkarak, Lake Diatas and Lake Dibawah

Moreover, upstream Kurambik River in Lake Maninjau was investigated for loading nutrients during flood events (Rainfall events)

More detail about these activities, could be checked this site


Survey Rote Island on August 26 – September 1, 2018

September 13, 2018

On August 26 – September 1, 2018, we conducted survey at Rote island. This activities as part of the project with topic: Research study on Integration System Development Through a Multidisciplinary Approach for Mapping Natural Resources and the Environment; case study: technology and content at Inland water resources for geospatial and remote sensing data.

It is located in the west coast of Kupang. This exotic island can be reached only in half an hours from Kupang by airplane. The unique combination of geologic activities, rock formation and many other variables resulted in condition as a saltwater lake.  Our team member consist of LAPAN (leader of this project), LIPI, KLHK, PUPERA and UGM.

The detail information could be checked in here