Abstract
The Tilacancha Private Conservation Area provides fresh water to the city of Chachapoyas. Therefore, the amount of soil lost in the year and under precipitation scenarios was determined. Individually, the values of the factors were obtained: rain erosivity (R) in 2019 and simulating increase and decrease of 15% of rainfall, soil erodibility (K), length and degree of slope (LS), land cover (C), and conservation practices (P); they were integrated into USLE, obtaining A = R ∗ K ∗ LS ∗ PC, (t/ha.yr). Six ranges of erosion were found, and the ACP had areas where from 0.4 to 665.20 t/ha.yr of soil was lost. A 15% reduction in rainfall would represent a loss of soil from 0.20 to 301.56 t/ha.yr and an increase in rainfall by 15%, and the erosion ranges would vary from 0.2 to 1028.84 t/ha.yr.
Highlights
Peru has two types of nongovernmental protected areas: Private Conservation Areas (ACPs) and conservation concessions [1]
USLE allowed estimating the loss of soil in the Tilacancha ACP. e factors were obtained individually based on the equations of the factors: rain erosivity (R) in 2019 and simulating increase and decrease of 15% of rainfall, soil erodibility (K), length and degree of slope (LS), coverage (C), and conservation practices (P)
In 2019, there was a range of 0.4 to 665.2 t/ha.yr of soil lost by water erosion according to six ranges, ranging from low to extreme soil loss according to the spatial distribution of the volume of soil lost
Summary
Peru has two types of nongovernmental protected areas: Private Conservation Areas (ACPs) and conservation concessions [1]. According to the Ecosystem Map of Peru, the Tilacancha ACP has 6800.48 ha and it presents four ecosystems: Yunga Altimontane Forest (pluvial), Jalca, Pastures/Herbazales, and secondary vegetation [4]. Water erosion in the world is intensified because different climatic conditions and land use to act on the various natural conditions, mold the soil, and, on certain. Is implies that providing a perspective view of the effects of climate change on soil loss can guide decision makers in environmental management and planning [14]. Agroecosystems and buffer zones around the ACP depend on ecosystem conditions and regulating ecosystem services, for example, the action of vegetation cover against soil erosion or as a function of water quality and quantity. E results obtained in this research, on estimating the spatial distribution of current water erosion and under scenarios of ±15% of rainfall for the Tilacancha ACP, provide an urgent response to the need to map, the current state of the water erosion index and to determine the influences of climate change scenarios [17], and the results will be used to manage and avoid the water erosion of the soil in the ACP for its conservation
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