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DEGRADED LANDS MAPPING, MODELLING AND PLANNING IN KABUPATEN LIMA PULUH KOTA
Trinovita Zuhara Jingga1, Arnayulis2, M.Amrizal1, Yuhendra3 and Gunadi Widi Nur Cahyo4
1JurusanTeknologi Pertanian Politeknik Pertanian Negeri Payakumbuh Kabupaten Lima Puluh Kota, Indonesia
2Jurusan Budidaya Tanaman Pangan Politeknik Pertanian Negeri Payakumbuh Kabupaten Lima Puluh Kota, Indonesia
3FakultasTeknik Informatika Institut Teknologi Padang Padang, Indonesia 4Fakultas Ilmu Komputer Universitas Putra Indonesia “YPTK” Padang, Indonesia
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ABSTRACT
Degraded lands is one of many problems in agriculture development in Indonesia. Kabupaten Lima Puluh Kota is a district in West Sumatera Province that still have large areas of degraded lands, and in this study, these degraded lands will be used as sample. One of the causes of the emergence or existence of degraded lands is the practicing of land management that is not environmental-safe. The environmental-unsafe land management includes, uncontrolled traditional farming methods, long dry season or the absence of proper irrigation. The main goal of this study is to find real condition in surveillance area and to map degraded lands in Kabupaten Lima Puluh Kota, data modelling plan to know the level of its criticality which identify by aerial imagery, and potentials of surrounding areas. By modelling these data, we can develop several strategies that can be used to change the status of the lands from degraded to productive.
Keywords : Degraded land, Aerial Surveillance
MODEL OF CONTROLLING INTANGIBLE ASSETS IN SECONDARY IRRIGATION SYSTEM MANAGEMENT
Nugroho Tri Waskitho1 and Djudiah2
1Faculty of Agriculture and Animal Husbandry, University of Muhammadiyah Malang, Jl. Raya Tlogomas 246, Malang 65144
2Faculty of Phsychology, University of Muhammadiyah Malang, Jl. Raya Tlogomas 246, Malang 65144
Corresponding email address: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
The research aimed at developing model of controlling intangible assets in secondary irrigation management. The research method consisted of two stages. The first stage was building the model of controlling intangible assets in irrigation management using neuro-fuzzy. The model had three submodels: knowledge management, intangible assets, and performance of irrigation system. The second stage was evaluating the model in Molek irrigation system in Malang, East Java. Data collecting was done by questionnaire and interview on employees of Irrigation Office in Kepanjen, Malang, East Java, Indonesia. Data analysis was done by Adaptive Neuro Fuzzy Inference System. The model had been evaluated by correlation coefficient, Mean Absolute Percentage Error and Root Mean Square Error. The research result indicated that the model of controlling intangible assets in irrigation system management could predict intangible assets and performance of irrigation system well. The model linked knowledge management, intangible assets and performance of irrigation system. Knowledge management felt into four main components: (i) learning organization, (ii) principle of organization, (iii) policy and strategy, and (iv) information and communication technology which controlling intangible assets in irrigation system. Intangible assets consisted of moral intelligence, emotional intelligence, creativity attitude, and institutional culture which controlling effectiveness of irrigation.
Keywords: model, intangible assets, controlling, secondary irrigation system
ASSESSMENT EROSION 3D HAZARD WITH USLE AND SURFER TOOL IN PASAMAN WATERSHED, SUMATRA ISLAND-INDONESIA
Aflizar, Roni Afrizal and Edi Syafri Muzakkir
State Polytechnic Payakumbuh for Agriculture,Payakumbuh 26271, Indonesia. Fax :62-752-7750220,
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ABSTRACT
Quantification of soil erosion rate is an important basic to investigate and improve land use system in Indonesia which has not been sufficiently conducted. In this study, we have tried to clarify spatial distribution of 3D soil erosion and dominant erosion factor controlling loss or redistribution of soil sediment in order to efficiently discuss the sustainable management of Pasaman watershed where is a main palm oil plantation producing area in Sumatra Island. The Universal Soil Loss Equation (USLE) and Erosion Three Dimension (E3D) in Surfer tool were used to identify characteristic of dominant factor in Pasaman Watershed using data soil survey and watershed characteristic. Soil erosion in Pasaman watershed is affected by topography (LS) factor and soil erodibility (K) factor in long-term period. At present, erosion is accelerated by change in cover crop (C) factor, soil conservation practices (P) factor and high rainfall erosivity (R). Estimated soil erosion rate was generally higher in upper than in lower topographical positions. It possibly enhanced the redistribution of soil, especially fine soil particles, and might contribute to degraded water quality at river and sea water as outlet of Pasaman watershed. Annual average soil erosion for Pasaman watershed was 427.23 ton/ha/y in 2014 where exceed tolerable erosion 35,47 ton/ha/y. Average concentrations of PO4-P and NO3-N in sea water in the outlet of Pasaman Watershed ranged from 0.05-1.88 mg/L and 0-2.90 mg/L from 2014, respectively. PO4-P exceeded level standard by Indonesia. Natural factor, including heavy rainfall, local soil properties and land use change in a landscape susceptible to soil erosion were the fundamental factor responsible for the high soil erosion in the watershed. The USLE model in Surfer tool was used to identify specific region susceptible to soil erosion by water and was also applied to identify suitable sites to conduct soil conservation and agroecological land use planning in Pasaman watershed.
Keywords: Erosion 3D, Pasaman watershed, Palm Oil Plantation, USLE
RELATIVE ROLES OF CLIMATE AND SOCIETAL FACTORS INWATER SCARCITY AND FLOODINGIN SRI LANKA AND MALDIVESAND ITS IMPLICATIONS
Zeenas Yahiya
Foundation for Environment, Climate and Technology, c/o Mahaweli Authority Maintenance, Digana Village, Rajawella, Sri Lanka.
Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Three cases that we have studies in Sri Lanka and Maldives illustrate the socio-economic factors and the role of climate change in water scarcity and flooding. The trade-offs, spatial and time scale issues and climate risk and sustainability shall be discussed. First, at a national and district scale in Sri Lanka, we find that there is a strong relationship between climate based drought incidences and drought disaster declarations and relief payments. The details of how these indices are derived and the cross-comparisons with disasters shall be presented. This case demonstrates that even in a country with political conflict, and with government systems under stress that climate drives drought disaster relief. Second, in a rapidly urbanizing region in Sri Lanka, we find that climate is not a driver of the rise in flooding in a sub-catchment (PingaOya) of the Mahaweli River. While there is a relationship between weather and flooding, the rising frequency of floods is not correlated with climate change. Rather anthropogenic activities and poor enforcement of regulations is the cause of floods. Third, in the Maldives, the new government is seeking to move away from climate dependence by encouraging its people to move from water sustenance through encouraging the young to migrate from the approximately 190 islands they inhabitto the HulhumaleIsland where it is constructing desalination plants to provide water. This means that there is higher level of dependence on water supply services. In November 2014 there was a week-long breakdown of the water supply.