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利用不同模型模拟中国北方农牧交错带的区域潜在风蚀。

Regional Potential Wind Erosion Simulation Using Different Models in the Agro-Pastoral Ecotone of Northern China.

机构信息

College of Resource and Environment Sciences/Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China.

Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.

出版信息

Int J Environ Res Public Health. 2022 Aug 3;19(15):9538. doi: 10.3390/ijerph19159538.

DOI:10.3390/ijerph19159538
PMID:35954892
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9368373/
Abstract

Wind erosion is crucial for assessing regional ecosystem services and sustainable development. The Agro-Pastoral Ecotone of northern China (APEC) is a typical region undergoing wind erosion and soil degradation. In this study, the National Wind Erosion Survey Model of China, the Integrated Wind Erosion Modeling System, and the regional versions of the Revised Wind Erosion Equation and Wind Erosion Prediction System were used to evaluate the regional potential wind erosion of the APEC during 2000 and 2012. The results showed that the potential wind erosion predicted by National Wind Erosion Survey Model of China (NWESMC), Revised Wind Erosion Equation (RWEQ), Wind Erosion Prediction System (WEPS), and Integrated Wind Erosion Modeling System (IWEMS) were significantly related to the observed wind erosion collected from published literature, but the observed data were generally smaller than the predicted values. The average potential wind erosions were 12.58, 25.87, 52.63, and 58.72 t hm a for NWESMC, RWEQ, WEPS, and IWEMS, respectively, while the spatial pattern and temporal trend of annual potential wind erosion were similar for different wind erosion models. Wind speed, soil moisture, and vegetation coverage were the dominant factors affecting regional wind erosion estimation. These results highlight that it is necessary to comprehensively calibrate and validate the selected wind erosion models. A long-term standard wind erosion monitoring network is urgently required. This study can serve as a useful reference for improving wind erosion models.

摘要

风蚀对于评估区域生态系统服务和可持续发展至关重要。中国北方农牧交错带（APEC）是一个典型的风蚀和土壤退化地区。本研究采用中国国家风蚀普查模型、综合风蚀模型系统、修订后的风蚀方程和风蚀预测系统的区域版本，评估了 2000 年和 2012 年 APEC 的区域潜在风蚀。结果表明，中国国家风蚀普查模型（NWESMC）、修订后的风蚀方程（RWEQ）、风蚀预测系统（WEPS）和综合风蚀模型系统（IWEMS）预测的潜在风蚀与从已发表文献中收集的观测到的风蚀显著相关，但观测数据普遍小于预测值。NWESMC、RWEQ、WEPS 和 IWEMS 的平均潜在风蚀分别为 12.58、25.87、52.63 和 58.72 t hm a，不同风蚀模型的年潜在风蚀的空间格局和时间趋势相似。风速、土壤湿度和植被覆盖度是影响区域风蚀估算的主导因素。这些结果强调需要综合校准和验证所选风蚀模型。迫切需要建立一个长期的标准风蚀监测网络。本研究可为改进风蚀模型提供有益参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/8f9500280a23/ijerph-19-09538-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/0b571d7dc234/ijerph-19-09538-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/d7ce87202e29/ijerph-19-09538-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/7f3ab8fa5da6/ijerph-19-09538-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/c53e7d950ab3/ijerph-19-09538-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/5d4d1d8a70bd/ijerph-19-09538-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/258d8ee74313/ijerph-19-09538-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/686080122a91/ijerph-19-09538-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/8f9500280a23/ijerph-19-09538-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/0b571d7dc234/ijerph-19-09538-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/d7ce87202e29/ijerph-19-09538-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/7f3ab8fa5da6/ijerph-19-09538-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/c53e7d950ab3/ijerph-19-09538-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/5d4d1d8a70bd/ijerph-19-09538-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/258d8ee74313/ijerph-19-09538-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/686080122a91/ijerph-19-09538-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bf6a/9368373/8f9500280a23/ijerph-19-09538-g008.jpg

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