The optimisation of society as an environment conservation actor: Study of Citanduy upstream watershed conservation

Author(s):  
H. Herdiansyah ◽  
A. Brotosusilo ◽  
H. Agustina ◽  
W. Berkademi
2016 ◽  
Vol 36 ◽  
pp. 31-41 ◽  
Author(s):  
Pinar Pamukcu ◽  
Nurgul Erdem ◽  
Yusuf Serengil ◽  
Timothy O. Randhir

2003 ◽  
Vol 60 (5) ◽  
pp. 624-634 ◽  
Author(s):  
Cindy Chu ◽  
Charles K Minns ◽  
Nicholas E Mandrak

This study presents a broad analysis of freshwater fish species biodiversity in relation to environmental and stress metrics throughout Canada. Species presence–absence data were used to calculate richness and rarity indices by tertiary watershed. Richness is higher in the southern parts of Canada, whereas rarity is concentrated in a "ring of rarity" around the periphery of the country. Environmental and stress indices were developed for each watershed using readily available mapped information. The environmental index was estimated using growing degree-days above 5°C, elevation range (m) within the watershed, mean annual sunshine hours, and mean annual vapour pressure (kPa). The number of crop farms, forestry, waste management, and petroleum refining facilities, road density (km·1000 km–2), dwelling density, and discharge sites (chimneys and laundry outlets) per 1000 km2 described the human stresses in each watershed. Conservation priority rankings were developed for the watersheds using an integrative index of the three indices. Watersheds in southern Ontario and British Columbia were ranked high because they contain the greatest biodiversity and the most stress. This study indicates how regional analyses can guide fisheries and watershed management.


2017 ◽  
Vol 2 (3) ◽  
pp. 235
Author(s):  
Harnita Rosalina

Segara Anakan is a lagoon located in estuary area of Citanduy and Cibeureum rivers. The main problem that exists in the region Segara Anakan is a shrinking area of Segara Anakan lead lagoon function becomes ineffective due to the increased volume of sediment in estuaries Citanduy. Refinement Segara Anakan will impact annual floods that occurred in the area downstream Citanduy. Have far-reaching is the decline in fish production, which makes the source of livelihood for the community residents of Kampung Laut, furthermore, the environmental changes that occurred in the area Segara Anakan have resulted in shrinking coastal fisheries resources and the expansion of land arising from silting. Assessment of the problem conducted by the method of approach of Analytical Hierarchy Process(AHP) to obtain the best alternatives among three alternatives being offered to sustain the function of Segara Anakan Lagoon. These three alternatives include the 1) Dredging the Lagoon and Upstream Watershed Conservation; 2) Dredging the Lagoon and Reclamation Work around Segara Anakan, and 3) Dredging the Lagoon and Citanduy Diversion. Some criteria and sub-criteria are adapted to support the selection of the alternatives and related questionnaires were developed, and the questionnaire filling was carried out through the implementation of Focus Group of Discussion or FGD. The criteria include several aspects of the criteria and sub-criteria are technical (floods, silting), socioeconomic (the tourist area, the local economy), as well as the environment (fisheries/shipping, agriculture and mangrove forests). Results of the analysis applying the AHP method showed the consistent value on the Alternative 3), i.e. the Dredging of the Lagoon and the Upstream Watershed Conservation (38%).


2021 ◽  
Vol 878 (1) ◽  
pp. 012056
Author(s):  
M Situmorang ◽  
S Setiyadi ◽  
L E Hutabarat

Abstract Rainfall is a determining factor in analyzing planned floods. This research was conducted by collecting secondary data and the field data concerning the soil’s ability to infiltrate the volume of rainfall. Data processing is carried out by statistical analysis to estimate the average rainfall, intensity value, estimated discharge plan, volume of runoff and estimated infiltration rate. These parameters are important related to the infiltration well dimensions planning and the conserving water area. From the research results, it is shown that infiltration rate and optimal dimensions of infiltration wells very dependent on rainfall discharge and runoff volume in each region. Artificial infiltration is an alternative solution for maintaining groundwater balance and overcoming water problems. With groundwater infiltration, groundwater infiltration can maintain a relatively stable groundwater depth. Infiltration rate in RT 06 Cawang are 54,03 cm/hour lower than in Kelurahan 11 Cawang East Jakarta are 54,12 cm/hour, with perimeter area of wells DSP = 1,5 m2, Depth of well (HSP) = -1,89 m2 and coverage area of well (ASP) = 1,77 m2.


Author(s):  
Donna Asteria ◽  
Herdis Herdiansyah

The purpose of this study is to explore the pattern of sustainability of women's leadership roles in watershed management. A quantitative approach did the research. A survey was conducted as a data collection technique. The analysis technique used is the analysis of causality with regression, accompanied by multi-dimensional scaling (MDS) analysis. The quantitative research samples were 120 respondents in 2 cities by purposive sampling (with the criteria of women who actively participated in watershed conservation in urban areas). The results show that women's leadership as environmental activists contribute to the sustainability of watershed management. For the sustainability of women's leadership, it is necessary to integrate social, economic, and ecological dimensions by focusing on aspects of women's empowerment to improve innovation capabilities in change adaptation, access to information and local institutions will support participatory approaches in watershed conservation to increase women's participation.


2020 ◽  
Vol 142 ◽  
pp. 105633
Author(s):  
Jen-Yang Lin ◽  
Ying-Chu Chen ◽  
Cherng-Tzong Chang

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