将侵蚀模型纳入土地健康评估,更好地了解景观状况

IF 2.4 3区 环境科学与生态学 Q2 ECOLOGY Rangeland Ecology & Management Pub Date : 2024-06-21 DOI:10.1016/j.rama.2024.05.003
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引用次数: 0

摘要

风蚀和水蚀会严重影响自然资源和生态系统服务,因此土壤侵蚀管理对于维持农业生态系统至关重要。土地健康评估规程(如《牧场健康指标解读》(IIRH))可提供宝贵的信息,为管理脆弱旱地的土壤侵蚀提供决策依据。将定量侵蚀模型与土地健康评估结合使用,可为管理决策提供更多信息。例如,通过风蚀模型 (AERO) 和牧场水文与侵蚀模型 (RHEM) 估算的沉积物迁移量有助于了解土壤和植被差异对风和水侵蚀风险的影响。在这篇文章中,我们提供了使用 AERO 和 RHEM 支持 IIRH 评估的概念基础,美国牧场的管理人员广泛使用这些评估。我们介绍了将侵蚀模型与 IIRH 结合使用如何 (1) 提高对不同类型风暴事件潜在侵蚀率的认识;(2) 支持识别侵蚀证据(尚)不显著的侵蚀风险区域;(3) 通过提供可重复的侵蚀指标提高土地健康评估的一致性;(4) 提供另一种证据来支持有关土地健康的评估结论;(5) 提高对不同生态相似地点和不同时期潜在侵蚀率的认识。有效利用侵蚀模型支持土地健康评估将改善干旱地区的风蚀和水蚀管理,从而有助于保护和恢复这些生态系统。
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Integrating Erosion Models Into Land Health Assessments to Better Understand Landscape Condition

Wind and water erosion can severely impact natural resources and ecosystem services, making soil erosion management essential to sustaining agroecosystems. Land health assessment protocols, such as Interpreting Indicators of Rangeland Health (IIRH), provide valuable information to make decisions on managing soil erosion in vulnerable drylands. Using quantitative erosion models with land health assessments can further inform management decisions. For example, sediment transport estimates from the Aeolian EROsion (AERO) model and Rangeland Hydrology and Erosion Model (RHEM) can help in understanding the impacts of differences in soil and vegetation on wind and water erosion risk. In this article, we provide a conceptual basis for using AERO and RHEM to support IIRH assessments that are used extensively by managers across United States rangelands. We describe how using erosion models with IIRH can (1) improve understanding about potential erosion rates for different types of storm events; (2) support identifying areas at risk of erosion where erosion evidence is not (yet) significant; (3) increase land health assessment consistency by providing reproducible erosion indicators; (4) provide another line of evidence to support assessment conclusions about land health; and (5) improve understanding about potential erosion rates across ecologically similar sites and over time. Effectively using erosion models to support land health assessments will improve wind and water erosion management in drylands, thus helping to protect and restore these ecosystems.

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来源期刊
Rangeland Ecology & Management
Rangeland Ecology & Management 农林科学-环境科学
CiteScore
4.60
自引率
13.00%
发文量
87
审稿时长
12-24 weeks
期刊介绍: Rangeland Ecology & Management publishes all topics-including ecology, management, socioeconomic and policy-pertaining to global rangelands. The journal''s mission is to inform academics, ecosystem managers and policy makers of science-based information to promote sound rangeland stewardship. Author submissions are published in five manuscript categories: original research papers, high-profile forum topics, concept syntheses, as well as research and technical notes. Rangelands represent approximately 50% of the Earth''s land area and provision multiple ecosystem services for large human populations. This expansive and diverse land area functions as coupled human-ecological systems. Knowledge of both social and biophysical system components and their interactions represent the foundation for informed rangeland stewardship. Rangeland Ecology & Management uniquely integrates information from multiple system components to address current and pending challenges confronting global rangelands.
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