当前位置: X-MOL 学术Environ. Earth Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Assessing the potential of soil erosion in Kyrgyzstan based on RUSLE, integrated with remote sensing
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2021-09-21 , DOI: 10.1007/s12665-021-09943-6
Eldiiar Duulatov 1, 2, 3 , Salamat Alamanov 1, 2, 3 , Rustam Orozbaev 1, 3 , Talant Asankulov 1 , Quoc Bao Pham 4 , Gulnura Issanova 5, 6
Affiliation  

Soil erosion is a serious ecological and economic issue occurring in all regions across the biosphere. Soil erosion contributes to land degradation, endangering both the pastoral and natural environments in Kyrgyzstan. This study objective is to identify the potential of soil erosion in Kyrgyzstan and estimate the total soil loss rate. The revised universal soil loss equation (RUSLE) model with remote sensing (RS) was used to show the distribution of risk zones of soil erosion and soil loss. Variables were obtained from Kyrgyz Hydro-Meteorological agency, Harmonized World Soil Data (HWSD), Moderate Resolution Imaging Spectroradiometer-Normalized Difference Vegetation Index (MOD13Q1-MODIS/Terra), Shuttle Radar Topography Mission (SRTM), and Global Land Cover Map (GlobeLand30). The study results display that the average annual soil erosion amount in Kyrgyzstan was 5.95 t ha−1 year−1, with an annual soil loss of 113.7 × 106 t year−1. The entire area was separated into seven erosion risk classes. More than 28% of the territory of Kyrgyzstan is affected by limited soil erosion; the average volume of potential erosion is around 1.0 t ha−1 year−1. The northeastern and central parts of the country mainly experienced low soil erosion, whereas the west and southwestern parts were subject to high-to-extremely high soil erosion rates. This is the first time this method has been used to estimate the potential of soil loss throughout the country; it provides suitable tools for identifying priority areas for considering measures to decrease soil erosion risk. Our findings give valuable implementations for assessing soil loss and protecting the environment.



中文翻译:

基于RUSLE结合遥感评估吉尔吉斯斯坦土壤侵蚀潜力

土壤侵蚀是一个严重的生态和经济问题,发生在整个生物圈的所有地区。土壤侵蚀导致土地退化,危及吉尔吉斯斯坦的牧区和自然环境。本研究的目的是确定吉尔吉斯斯坦土壤侵蚀的潜力并估算总土壤流失率。利用遥感(RS)修正后的通用土壤流失方程(RUSLE)模型显示土壤侵蚀和土壤流失风险区的分布。变量来自吉尔吉斯斯坦水文气象局、协调世界土壤数据 (HWSD)、中分辨率成像光谱仪-归一化差异植被指数 (MOD13Q1-MODIS/Terra)、航天飞机雷达地形任务 (SRTM) 和全球土地覆盖图 (GlobeLand30) )。−1 年−1,年土壤流失量为 113.7 × 10 6 t 年−1。整个地区被分为七个侵蚀风险等级。吉尔吉斯斯坦28%以上的领土受有限的水土流失影响;潜在侵蚀的平均量约为 1.0 吨公顷-1 年-1. 东北和中部地区以低水土流失为主,西部和西南地区水土流失率高到极高。这是该方法首次在全国范围内用于估算土壤流失的潜力;它为确定优先领域以考虑减少土壤侵蚀风险的措施提供了合适的工具。我们的研究结果为评估土壤流失和保护环境提供了有价值的实施。

更新日期:2021-09-22
down
wechat
bug