scholarly journals DINAMIKA DAN TANTANGAN PENGGUNAAN DAN PEMANFAATAN TANAH DI WILAYAH PULAU KECIL

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Sukmo Pinuji ◽  
Muh Arif Suhattanto ◽  
Tjahjo Arianto

Abstract: Small island land resource management has specific characteristic, differ from its main island, due to its geographical characteristic. Moreover, small Island is also vulnerable due to climate changes. Located on Sumenep District, East Java, Masalembu is one of the example of inhabited small island in Indonesia, represent the dynamic and land use management in small island area. This research use DPSIR (drivers, pressures, states, impacts, and responses) method to capture those dynamics. The results show that thedynamics of land use and utilization in Masalembu are described as follow: (i) land use and utilization activities are highly influenced by economic growth, climate change due to the fluctuation of marine products, and population growth; (ii) climate change, together with exploitation of marine resources,resulting the decrease of marine products, thus drive the population to start and to cultivate the land for improving their income. In the long run, land products from agriculture and farming sectors become competitive commodities beside fisheries; (iii) the absence of zonation, strategic, and action plans on landuse and utilization control giving the consequences of unstructured, unplanned, and unsustainable land use and utilizationIntisari: Pengelolaan sumberdaya tanah di pulau kecil memiliki ciri khusus yang berbeda dengan pulau induk, terkait karakteristik geografisnya. Selain itu, pulau kecil juga memiliki kerentanan terhadap fenomena perubahan iklim. Masalembu, merupakan salah satu contoh dari ribuan pulau kecil berpenghuni di Indonesia yang dapat mewakili gambaran dinamika pengelolaan dan pemanfaatan lahan di wilayah pulau kecil. Penelitian ini menggunakan metode DPSIR (drivers, pressures, states, impacts, dan responses) untuk menangkap gambaran dinamika tersebut. Hasil penelitian menunjukkan bahwa dinamika penggunaan dan pemanfaatan lahan di Pulau Masalembu dapat dilihat sebagai berikut: (i) aktivitas penduduk atas tanah sangat dipengaruhi oleh pertumbuhan ekonomi, perubahan iklim yang menyebabkan pasang surutnya hasil perikanan laut, dan pertumbuhan penduduk baik yang terjadi karena kelahiran maupun migrasi; (ii)perubahan iklim serta eksploitasi sumberdaya laut yang berlebihan sehingga tidak dapat lagi memenuhi kebutuhan ekonomi masyarakat, menjadi faktor pendorong masyarakat untuk mulai memanfaatkan tanah sebagai alternatif penghasilan, yang kemudian beralih menjadi komoditas unggulan, serta (iii) tidak adanya rencana zonasi dan rencana strategis penggunaan dan pemanfaatan tanah membuat pola-pola penggunaan dan pemanfaatannya menjadi tidak terstruktur dan terencana, serta tidak memenuhi prinsip sustainability.

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Sukmo Pinuji ◽  
Muh Arif Suhattanto ◽  
Tjahjo Arianto

Abstract: Small island land resource management has specifc characteristic, differ from its main island, due to its geographical characteristic. Moreover, small Island is also vulnerable due to climate changes. Located on Sumenep District, East Java, Masalembu is one of the example of inhabited small island in Indonesia, represent the dynamic and land use management in small island area. This research use DPSIR (drivers, pressures, states, impacts, and responses) method to capture those dynamics. The results show that the dynamics of land use and utilization in Masalembu are described as follow: (i) land use and utilization activities are highly influenced by economic growth, climate change due to the fluctuation of marine products, and population growth; (ii) climate change, together with exploitation of marine resources, resulting the decrease of marine products, thus drive the population to start and to cultivate the land for improving their income. In the long run, land products from agriculture and farming sectors become competitive commodities beside fsheries; (iii) the absence of zonation, strategic, and action plans on land use and utilization control giving the consequences of unstructured, unplanned, and unsustainable land use and utilization.Intisari: Pengelolaan sumberdaya tanah di pulau kecil memiliki ciri khusus yang berbeda dengan pulau induk, terkait karakteristik geografsnya. Selain itu, pulau kecil juga memiliki kerentanan terhadap fenomena perubahan iklim. Masalembu, merupakan salah satu contoh dari ribuan pulau kecil berpenghuni di Indonesia yang dapat mewakili gambaran dinamika pengelolaan dan pemanfaatan lahan di wilayah pulau kecil. Penelitian ini menggunakan metode DPSIR (drivers, pressures, states, impacts, dan responses) untuk menangkap gambaran dinamika tersebut. Hasil penelitian menunjukkan bahwa dinamika penggunaan dan pemanfaatan lahan di Pulau Masalembu dapat dilihat sebagai berikut: (i) aktivitas penduduk atas tanah sangat dipengaruhi oleh pertumbuhan ekonomi, perubahan iklim yang menyebabkan pasang surutnya hasil perikanan laut, dan pertumbuhan penduduk baik yang terjadi karena kelahiran maupun migrasi; (ii) perubahan iklim serta eksploitasi sumberdaya laut yang berlebihan sehingga tidak dapat lagi memenuhi kebutuhan ekonomi masyarakat, menjadi faktor pendorong masyarakat untuk mulai memanfaatkan tanah sebagai alternatif penghasilan, yang kemudian beralih menjadi komoditas unggulan, serta (iii) tidak adanya rencana zonasi dan rencana strategis penggunaan dan pemanfaatan tanah membuat pola-pola penggunaan dan pemanfaatannya menjadi tidak terstruktur dan terencana, serta tidak memenuhi prinsip sustainability .


2021 ◽  
Author(s):  
Chukwudi Njoku ◽  
Francis Okpiliya ◽  
Joel Efiong ◽  
Chinwe Ifejika Speranza

<p>Violent conflicts related to pastoralists-farmers’ interactions in Nigeria have assumed an unprecedented dimension, causing loss of lives and livelihoods. The mid-Benue trough (Benue and Taraba States) has suffered most from the conflicts. This study aims to provide knowledge on the socio-ecological drivers of pastoralists-farmers’ conflicts in the mid-Benue trough from the year 2000 to 2020 and to identify pathways to solving them. First, data from the Armed Conflict Location and Event Data Project were used to map the conflicts. Second, to understand the nexus of climate change, land use and the conflicts, the study analyzed satellite data of Land Surface Temperature (LST) as a proxy for climate change, using data from the Moderate-Resolution Imaging Spectroradiometer (MODIS) satellite and Land Use Land Cover (LULC), using LandSat 7 ETM and LandSat 8 ETM+ data, then linked them to the mapped conflicts. Third, to understand causes and impacts of the conflict on pastoralists and farmers’ livelihoods, 100 interviews were conducted, 50 for each group and analyzed using content analysis and descriptive statistics. Results showed that there were 2532 fatalities from 309 conflict events between pastoralists and farmers. The incidents exhibited statistically significant clustering and were minimal between the year 2000 and 2012, increasing gradually until the year 2013 when it began to rise geometrically. The Getis-Ord Gi hotspot analysis revealed the conflict hotspots to include Agatu, Oturkpo, Gwer East and Gashaka Local Government Areas. The results from the LST analysis showed that the area coverage of high LST increased from 30 percent in 2000 to 38 percent in 2020, while extremely high LST area also increased from 14 to 16 percent. A significantly high percentage of the conflicts (87 percent) occurred in areas with high LST (>30⁰C). In addition, the LULC analyses showed that built-up land area increased by 35 km<sup>2 </sup>(0.1 percent) and dense forests reduced by 798 km<sup>2</sup> (0.1 percent). Notably, shrublands and grasslands, which are the resource domains of the pastoralists reduced by 11,716 km<sup>2  </sup>(13.1 percent) and croplands of farmers increased by 12,316 km<sup>2 </sup>(13.8 percent)<strong>. </strong>This presents an apparent transition of LULC from shrublands and grasslands to croplands in the area. Further analyses showed that 63 percent of the conflicts occurred in croplands and 16 percent in shrublands and grasslands. Hence, the reduction of land resource available to pastoralists and their subsequent cropland encroachment were identified as major causes of the conflict. It was therefore concluded that land development for other purposes is a major driver of pastoralists-farmers’ conflicts in the study area. There is thus a need to integrate conflict maps, LST and LULC dynamics to support dialogue, land use planning and policy formulation for sustainable land management to guide pastoral and farming activities.</p>


2019 ◽  
Vol 11 (5) ◽  
pp. 1443 ◽  
Author(s):  
Rui Yan ◽  
Yanpeng Cai ◽  
Chunhui Li ◽  
Xuan Wang ◽  
Qiang Liu

This study researched the individual and combined impacts of future LULC and climate changes on water balance in the upper reaches of the Beiluo River basin on the Loess Plateau of China, using the scenarios of RCP4.5 and 8.5 of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The climate data indicated that both precipitation and temperature increased at seasonal and annual scales from 2020 to 2050 under RCP4.5 and 8.5 scenarios. The future land use changes were predicted through the CA-Markov model. The land use predictions of 2025, 2035, and 2045 indicated rising forest areas with decreased agricultural land and grassland. In this study, three scenarios including only LULC change, only climate change, and combined climate and LULC change were established. The SWAT model was calibrated, validated, and used to simulate the water balance under the three scenarios. The results showed that increased rainfall and temperature may lead to increased runoff, water yield, and ET in spring, summer, and autumn and to decreased runoff, water yield, and ET in winter from 2020 to 2050. However, LULC change, compared with climate change, may have a smaller impact on the water balance. On an annual scale, runoff and water yield may gradually decrease, but ET may increase. The combined effects of both LULC and climate changes on water balance in the future were similar to the variation trend of climate changes alone at both annual and seasonal scales. The results obtained in this study provide further insight into the availability of future streamflow and can aid in water resource management planning in the study area.


2018 ◽  
Vol 7 (1.4) ◽  
pp. 39
Author(s):  
Ridima Sharma ◽  
Sakshi Tanwar ◽  
Safder Rizvi

Cities appear as a major role player in the economy of any area reflecting the global integration of its economy as they house majority of large business groups. Migratory population and urban growth are direct contributors in this economic expansion, particularly in the present-day phase of globalization which in under developed countries causes densification and instability of agriculture and other existing land use thus bringing in the need of a proper land resource management.Focused attention is needed to integrate infrastructure development in various cities and linkages should be established between the creation and management of assets through a system of reforms for long-term sustainability. Himachal Pradesh is a hill state with some most difficult terrains of the country making the preparation of complete cadastral record of land nearly impossible only 80% of land is under revenue records. Thus the amount of habitable land decreases further with around 50 % of the land under forest cover. The aim of the study is to analyze the growth of urbanisation in Himachal Pradesh along with the factors responsible. This growth pattern can later be used to formulate proper land use management and infrastructure development policies for equitable development of the area.


2014 ◽  
Vol 509 ◽  
pp. 354-366 ◽  
Author(s):  
Eugenio Molina-Navarro ◽  
Dennis Trolle ◽  
Silvia Martínez-Pérez ◽  
Antonio Sastre-Merlín ◽  
Erik Jeppesen

Author(s):  
Son Ngo ◽  
Huong Hoang ◽  
Phuong Tran ◽  
Loc Nguyen

Land use/land cover (LULC) and climate changes are two main factors directly affecting hydrologic conditions. However, very few studies in Vietnam have investigated changes in hydrological process under the impact of climate and land use changes on a basin scale. The objective of this study is to assess the individual and combined impacts of land use and climate changes on hydrological processes for the Nam Rom river basin, Northwestern Viet Nam using Remote Sensing (RS) and Soil and Water Assessment Tools (SWAT) model. SWAT model was used for hydrological process simulation. Results indicated that SWAT proved to be a powerful tool in simulating the impacts of land use and climate change on catchment hydrology. The change in historical land use between 1992 and 2015 strongly contributed to increasing hydrological processes (ET, percolation, ground water, and water yield), whereas, climate change led to significant decrease of all hydrological components. The combination of land use and climate changes significantly reduced surface runoff (-16.9%), ground water (-5.7%), water yield (-9.2%), and sediment load (-4.9%). Overall climatic changes had more significant effect on hydrological components than land use changes in the Nam Rom river basin during the 1992–2015. Under impacts of projected land use and climate change scenarios in 2030 on hydrological process of the upper Nam Rom river basin indicate that ET and surface flow are more sensitive to the changes in land use and climate in the future. In conclusion, the findings of this study will basic knowledge of the effects of climate and land-use changes on the hydrology for future development of integrated land use and water management practices in Nam Rom river basin.


2021 ◽  
Author(s):  
Silvia Kohnová ◽  
Zuzana Németová ◽  
Zuzana Sabová

<p>It is well known that the impact of climate change affects various areas such as hydroclimatical factors which can cause increased occurrence of heavy precipitation events, ice melting, rising temperature or sea-level as a consequence of the global warming. It is assumed that the average surface temperature on Earth has increased by more than 1° Celsius since 1880. Climate change of the Earth has changed naturally over the past 650.000 years as a result of external factors that impact the climate. Despite of this fact, over the last 100 years is global warming strongly accelerated by different kind of human activities. One of those activities represents inappropriate land use management which is directly connected with soil degradation and soil erosion as the major threat of global soil degradation. The study presents the assessment of the future development of soil water erosion processes in one small agricultural catchment located in the Slovak Republic. The calculations were done based on the long-term simulation using the event and physically-based soil erosion model and one-hour rainfall events. The model used was calibrated and validated in the previous studies. The period time analysed covers 80 years, i.e., from 2020 until 2100. From the period the years where the most intensive rainfall events have occurred were chosen. The rainfall events were determined by climate CLM model. In order to compare the suitability of land-use management, three scenarios were created. They include three different types of land cover, i.e., agricultural crops (wheat and corn) and grassland. The modelled results show development of soil erosion in the future period up to 2100 together with the comparison of land use management in the area under research. The study predicts the future development of soil water erosion where the short term extreme rainfall events play key element as a crucial factor in the soil erosion assessment processes.</p><p> </p>


1976 ◽  
Vol 8 (1) ◽  
pp. 175-180
Author(s):  
Ronald D. Lacewell ◽  
John G. McNeely

Floods will continue to cause damage as long as development continues upon flood-prone lands. Inevitably, flooding occurs, damage ensues and there is personal suffering and loss. A burden of rescue and relief operations falls on all taxpayers.Flood control projects cannot protect against all damage, and not all flood hazard areas are amenable to flood control projects. An alternative to continued construction of engineering works for flood protection is flood plain management. To be effective, this must be brought about through political and legal means. Its purposes are to minimize the consequences of flooding and to achieve, in the long run, an optimum use of the flood plains.


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