{"title":"评估自然灾害、人为影响和政府发展政策对印度小安达曼岛景观动态的影响","authors":"P. Shashank Reddy, Rama Chandra Prasad P.","doi":"10.1007/s11852-023-01024-z","DOIUrl":null,"url":null,"abstract":"<p>The Little Andaman Island face exploitation masked as development through the implementation of policies and schemes, which ultimately deplete and degrade its natural resources. Additionally, the island is also susceptible to frequent natural disasters and the adverse effects of climate change, compounding environmental challenges. The main aim of this study was to assess the dynamic changes in the landscape of Little Andaman during the years 1976, 1989, 2010, 2014, and 2022 using satellite data. Thematic maps of the area were generated using visual interpretation techniques. The study revealed that the dominant land cover in Little Andaman was forests, which gradually decreased from 622.79 km<sup>2</sup> in 1976 to 579.6 km<sup>2</sup> in 2022, resulting in an overall loss of 43.1 km<sup>2</sup> over 47 years. On the other hand, settlements, including built-up areas and agriculture, nearly doubled in size from 18.9 km<sup>2</sup> in 1976 to 36.60 km<sup>2</sup> in 2022. Mangroves, in contrast, exhibited stable coverage, with an area of approximately 31 km<sup>2</sup> in 1976, showing minor fluctuations until 2022. Plantations experienced an increase from 19.37 km<sup>2</sup> in 1989 to 22.28 km<sup>2</sup> in 2022. Water bodies also expanded gradually, reaching 10.4 km<sup>2</sup> in 2010 and maintaining a consistent size until 2022. In the meantime, degraded forests and degraded mangroves showed minimal changes over the years. The study identified a range of factors contributing to these changes, with a particular focus on tsunamis, climate change, and government policies and schemes.</p>","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"1 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluating the effects of natural disasters, human influence, and government development policies on the landscape dynamics of Little Andaman, India\",\"authors\":\"P. Shashank Reddy, Rama Chandra Prasad P.\",\"doi\":\"10.1007/s11852-023-01024-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The Little Andaman Island face exploitation masked as development through the implementation of policies and schemes, which ultimately deplete and degrade its natural resources. Additionally, the island is also susceptible to frequent natural disasters and the adverse effects of climate change, compounding environmental challenges. The main aim of this study was to assess the dynamic changes in the landscape of Little Andaman during the years 1976, 1989, 2010, 2014, and 2022 using satellite data. Thematic maps of the area were generated using visual interpretation techniques. The study revealed that the dominant land cover in Little Andaman was forests, which gradually decreased from 622.79 km<sup>2</sup> in 1976 to 579.6 km<sup>2</sup> in 2022, resulting in an overall loss of 43.1 km<sup>2</sup> over 47 years. On the other hand, settlements, including built-up areas and agriculture, nearly doubled in size from 18.9 km<sup>2</sup> in 1976 to 36.60 km<sup>2</sup> in 2022. Mangroves, in contrast, exhibited stable coverage, with an area of approximately 31 km<sup>2</sup> in 1976, showing minor fluctuations until 2022. Plantations experienced an increase from 19.37 km<sup>2</sup> in 1989 to 22.28 km<sup>2</sup> in 2022. Water bodies also expanded gradually, reaching 10.4 km<sup>2</sup> in 2010 and maintaining a consistent size until 2022. In the meantime, degraded forests and degraded mangroves showed minimal changes over the years. The study identified a range of factors contributing to these changes, with a particular focus on tsunamis, climate change, and government policies and schemes.</p>\",\"PeriodicalId\":48909,\"journal\":{\"name\":\"Journal of Coastal Conservation\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-01-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Coastal Conservation\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1007/s11852-023-01024-z\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Coastal Conservation","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s11852-023-01024-z","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Evaluating the effects of natural disasters, human influence, and government development policies on the landscape dynamics of Little Andaman, India
The Little Andaman Island face exploitation masked as development through the implementation of policies and schemes, which ultimately deplete and degrade its natural resources. Additionally, the island is also susceptible to frequent natural disasters and the adverse effects of climate change, compounding environmental challenges. The main aim of this study was to assess the dynamic changes in the landscape of Little Andaman during the years 1976, 1989, 2010, 2014, and 2022 using satellite data. Thematic maps of the area were generated using visual interpretation techniques. The study revealed that the dominant land cover in Little Andaman was forests, which gradually decreased from 622.79 km2 in 1976 to 579.6 km2 in 2022, resulting in an overall loss of 43.1 km2 over 47 years. On the other hand, settlements, including built-up areas and agriculture, nearly doubled in size from 18.9 km2 in 1976 to 36.60 km2 in 2022. Mangroves, in contrast, exhibited stable coverage, with an area of approximately 31 km2 in 1976, showing minor fluctuations until 2022. Plantations experienced an increase from 19.37 km2 in 1989 to 22.28 km2 in 2022. Water bodies also expanded gradually, reaching 10.4 km2 in 2010 and maintaining a consistent size until 2022. In the meantime, degraded forests and degraded mangroves showed minimal changes over the years. The study identified a range of factors contributing to these changes, with a particular focus on tsunamis, climate change, and government policies and schemes.
期刊介绍:
The Journal of Coastal Conservation is a scientific journal for the dissemination of both theoretical and applied research on integrated and sustainable management of the terrestrial, coastal and marine environmental interface.
A thorough understanding of both the physical and the human sciences is important to the study of the spatial patterns and processes observed in terrestrial, coastal and marine systems set in the context of past, present and future social and economic developments. This includes multidisciplinary and integrated knowledge and understanding of: physical geography, coastal geomorphology, sediment dynamics, hydrodynamics, soil science, hydrology, plant and animal ecology, vegetation science, biogeography, landscape ecology, recreation and tourism studies, urban and human ecology, coastal engineering and spatial planning, coastal zone management, and marine resource management.