LAND USE AND LAND COVER DYNAMICS AND POTENTIAL CONSEQUENCES ON THE ECOSYSTEM SERVICES IN THE MARAPANIM RIVER WATERSHED, PARÁ, BRAZIL

Q4 Environmental Science

Floresta Pub Date : 2023-07-03 DOI:10.5380/rf.v53i3.84218

Davi Farias Da Silva, Norma Ely Santos Beltrão, D. Gomes

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引用次数: 0

Abstract

Changes in the dynamics of land use and land cover may significantly alter ecosystem models and processes, leading to changes in the delivery of their ecosystem services. In the Amazon, among the areas most affected by these changes are the forested watersheds, which involve a huge variety of ecosystem services that support human and animal well-being. Given the above, this study aims to analyse the dynamics of deforestation and changes in land use and land cover classes in the Marapanim River watershed, located in the northeast of Pará, to identify the possible consequences in the provision of ecosystem services. The methodology used in this study consists of quantifying and mapping deforestation and land use change using PRODES and MapBiomas data, identifying their impacts through estimates of loss of water-related ecosystem services and analysing the consequences of this process. The results revealed that the accumulated deforestation in the Marapanim River watershed between the years 1988 and 2019 was 1,614.72 km², about 74.84% of its area, resulting from forest conversion for pasture and urban areas in the most cases. In addition, it is concluded that this situation has had effects on water-related ecosystem services, especially regards to regulating services, affecting forest and soil moisture, evapotranspiration, carbon sequestration and temperature increase. Finally, it was found that human occupation close to head watershed areas has contributed to the pollution of its rivers, by preventing their use for human consumption.

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巴西标准杆数马拉帕尼河流域的土地利用和土地覆盖动态及其对生态系统服务的潜在影响

土地利用和土地覆盖动态的变化可能会极大地改变生态系统模式和过程，导致其生态系统服务的提供发生变化。在亚马逊地区，受这些变化影响最大的地区是森林流域，这涉及到支持人类和动物福祉的各种生态系统服务。鉴于上述情况，本研究旨在分析位于帕拉东北部的马拉帕尼姆河流域的森林砍伐动态以及土地利用和土地覆盖类别的变化，以确定提供生态系统服务的可能后果。本研究中使用的方法包括使用PRODES和MapBiomas数据量化和绘制森林砍伐和土地利用变化图，通过估计与水相关的生态系统服务损失来确定其影响，并分析这一过程的后果。结果显示，1988年至2019年间，马拉帕尼姆河流域的累计森林砍伐面积为1614.72平方公里，约占其面积的74.84%，这在大多数情况下是由于森林向牧场和城市地区的转变。此外，得出的结论是，这种情况对与水有关的生态系统服务产生了影响，特别是在调节服务方面，影响了森林和土壤水分、蒸散、固碳和气温升高。最后，人们发现，人类在靠近流域上游地区的占领阻止了河流被用于人类消费，从而导致了河流的污染。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Floresta Environmental Science-Nature and Landscape Conservation

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Revista Floresta admits articles of scientific contribution in Forest Science, in the areas of Nature Conservation, Economy and Forest Policy, Forest Management, Silviculture and Wood Technology. The main task is to promote and divulgate the development of Forest Science in Brazil and in the world. Articles published in Revista Floresta are under total responsibility of the authors, who are aware that they are original studies. It remains implicit that articles were not submitted for publication to any other divulgation media. It remains explicit the agreement of authors to norms of the journal and, along the development of their work, the observance of ethic aspects and respect of the current copyright legislation.