USO DE PLUVIÔMETRO ARTESANAL COMO INSTRUMENTO APLICADO À MODELAGEM DE CHEIA EM BELÉM-PA

Author(s):  
Deborah Souza Dias ◽  
Claudio José Cavalcante Blanco ◽  
Carlos Eduardo Aguiar de Souza Costa ◽  
Roberta Luiza de Oliveira Albuquerque

O processo de urbanização vem intensificando-se com as transformações de uso e ocupação do solo, contribuindo para a constante ocorrência de alagamentos, causando prejuízos humanos e econômicos para a sociedade. Assim, o trabalho avaliou o impacto da urbanização nos hidrogramas de cheia e vazão de pico da bacia hidrográfica do Igarapé Tucunduba (Belém-PA), na qual as condições de uso e ocupação do solo mudaram de forma significativa nas décadas de 1990, 2000 e 2010 devido ao aumento da urbanização e áreas impermeáveis. Hietogramas foram confeccionados a partir de dados de chuvas coletados em um pluviômetro artesanal. Os hietogramas deram origem a hidrogramas de cheia simulados através do modelo do Natural Resources Conservation Service (NRCS). Os hidrogramas apresentaram vazões de pico que chegaram a 36,57 m3/s, o que se traduz em alagamentos na bacia hidrográfica, pois a bacia sofre com ocupação e urbanização desordenadas e consequentemente, com a impermeabilização, que reduz a infiltração do solo, favorecendo as cheias, causando transtornos aos moradores da região.

2017 ◽  
Vol 15 (1) ◽  
pp. 49
Author(s):  
Dharmadi Dharmadi ◽  
Dede Irving Hartoto ◽  
Syahroma Husni Nasution ◽  
Dian Oktaviani

Penelitian dilakukan pada tahun 2004 - 2006 di Danau Semayang dan Muara Kaman (bagian dari Sungai Mahakam), Kalimantan Timur, melalui survei lapangan dan wawancara langsung dengan nelayan, masyarakat, dan Dinas Perikanan, Dinas Perlindungan Hutan dan Pelestarian Alam. Tujuan penelitian ini adalah untuk mengetahui penyebaran secara spasial, status pemanfaatan, dan upaya konservasi pesut Mahakam (Orcaella brevirostris). Hasil pengamatan menunjukkan bahwa distribusi pesut Mahakam secara spasial terdapat di Muara Kaman, Muara Sungai Pela Kecil, muara Sungai Pela Besar, Danau Semayang, dan Danau Melintang. Pada saat ini, pesut Mahakam di Sungai Mahakam digunakan sebagai wisata air bagi turis domestik maupun luar negeri. Upaya konservasi pesut Mahakan dapat dilakukan melalui perlindungan habitat dari pencemaran dan pendangkalan, perlindungan suaka perikanan yang berfungsi untuk penyedia makanan alami serta meningkatkan peran aktif masyarakat agar turut menjaga kelestarian pesut. This study was conducted during 2004 to 2006 in Semayang and Melintang Lakes, Mahakam segment around Muara Kaman River of East Kalimantan, through field survey methods, and directly interview to respective respondens of fishers, local people, Fisheries Regency Departement and Forest Protection and Natural Resources Conservation. The objective of the study was to elucidate the distribution spasial, utilization status, and conservation effort of freshwater dolphin (Orcaella brevirostris). Results show that the spasial distributions of freshwater dolphin were found in Kaman, Pela Kecil, Bank of Pela Besar Rivers, Semayang, and Melintang Lakes. Freshwater dolphines was used as echotourism for local and foreign tourisms. There are some efforts to conserve of freshwater dolphin in the East Kalimantan, namely habitat protection from pollution and sedimentation, fisheries area protection for providing natural food and to increase local people role in conserving the existence of these animals.


Author(s):  
Mihai Nita ◽  
Mihaita Iulian Niculae ◽  
Diana Onose ◽  
Maria Patroescu ◽  
Gabriel Ovidiu Vânau ◽  
...  

As urban development has become an increasing problem, urban planning is required to integrate social and economical needs with the sustainable use of natural resources. Lately planners have been using GIS techniques, based on international and local databases, in finding the most probable scenarios and the best available solutions. Four models of natural resources conservation have proved effective in the influence areas of cities: protected areas, yellow-green belts, regional parks, and oxygen generating surfaces. The establishment and management of these can be better realised by GIS techniques, because of their efficiency and ease of use, and the suitability and general availability of data.


2022 ◽  
pp. 3-27
Author(s):  
Manoj Kumar Jhariya ◽  
Arnab Banerjee ◽  
Ram Swaroop Meena

Sign in / Sign up

Export Citation Format

Share Document