Watershed Ecology and the Environment最新文献

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Watershed Ecology and the Environment

Pub Date : 2025-01-01

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Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

How far have roadside curb inlets evolved towards sustainable urban drainage? 路边路沿入口向可持续城市排水系统发展了多少？

Watershed Ecology and the Environment

Pub Date : 2025-01-01 DOI: 10.1016/j.wsee.2025.05.003

Aamer Majid Bhat , Indra Mani Tripathi , Pranab Kumar Mohapatra

Stormwater management has become a critical issue, particularly with the ongoing urbanization and the impacts of climate change. Roadside curb inlets are key components of grey infrastructure that convey stormwater to various drainage systems. Curb inlets for conventional drainage systems are typically long, whereas they are usually shorter for directing stormwater to sustainable green stormwater infrastructures (GSIs), such as a roadside bioretention cell. As shorter curb inlets drain stormwater to GSIs, they have noteworthy advantages over conventional inlets such as environmental sustainability, urban flood resilience, pollution control, improved public health, and mitigating urban heat stress. This perspective aims to present a global outlook on the implementation of sustainable GSI curb inlets while also exploring the transition from conventional to sustainable systems. While some countries such as the USA, Canada, and China have adopted sustainable drainage practices including curb inlets, most regions, such as South Asia, Central America, and Africa are still far from embracing these practices. For the wider implementation of sustainable curb inlets with GSIs, recommendations include framing policies at the ministry level, raising awareness through research institutes, and educating the public on the benefits of sustainable drainage. For efficient design, it’s crucial to understand curb inlet hydraulics, consider various design parameters, monitor for clogging and sediment buildup, and account for climate change impacts.

雨水管理已成为一个关键问题，特别是在持续的城市化和气候变化的影响下。路边入口是灰色基础设施的关键组成部分，将雨水输送到各种排水系统。传统排水系统的排水口通常很长，而将雨水引入可持续的绿色雨水基础设施（GSIs）（例如路边的生物储存池）的排水口通常较短。由于较短的路边入口将雨水排入gsi，因此与传统入口相比，它们具有显著的优势，如环境可持续性、城市洪水抵御能力、污染控制、改善公共卫生和减轻城市热应力。这一观点旨在呈现可持续GSI遏制入口实施的全球前景，同时也探索从传统到可持续系统的过渡。虽然美国、加拿大和中国等一些国家已经采取了可持续排水措施，包括控制进水口，但大多数地区，如南亚、中美洲和非洲，还远远没有采取这些措施。为了更广泛地实施可持续排水系统，建议包括在部委层面制定政策，通过研究机构提高认识，并向公众宣传可持续排水的好处。为了实现高效设计，了解节流水力学、考虑各种设计参数、监测堵塞和沉积物积聚以及考虑气候变化的影响至关重要。

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Integrating socio-economic zones into water resource analysis under land use change and climate variability in the Okavango basin 将社会经济区域纳入奥卡万戈盆地土地利用变化和气候变率下的水资源分析

Watershed Ecology and the Environment

Pub Date : 2025-01-01 DOI: 10.1016/j.wsee.2025.06.003

Blessing Kavhu , Zama Eric Mashimbye , Linda Luvuno , Udita Sanga

The impacts of land use/land cover (LULC) change and climate variability on surface water availability is critical for informing transboundary water management. However, most hydrological models overlook the socio-economic (SE) heterogeneity of basins, potentially leading to oversimplified or inaccurate conclusions. This study aims to analyze the value of integrating socio-economic zones into hydrological analysis when disentangling the effects of LULC change and climate variability on surface water yield in the Okavango Basin. Using the InVEST water yield model, we simulated surface water availability for the years 2004, 2013, and 2020, achieving strong agreement with observed discharge data (R² = 0.88, p < 0.05). Results show a basin-wide decline in mean surface water depth from 459 mm in 2004 to 299 mm in 2020, a 35 % reduction, consistent with regional drying trends and increasing anthropogenic pressures. Climate variability emerged as the dominant driver of change, explaining 81.7 % and 78.5 % of water yield variation during 2004–2013 and 2013–2020, respectively. However, in highly modified zones such as SE 2, 7, and 13, LULC change accounted for over 50 % of the variation, underscoring the spatial heterogeneity of hydrological drivers. By incorporating socio-economic zoning, this study offers a more nuanced and policy-relevant understanding of surface water dynamics and supports the design of targeted, zone-specific water management strategies in transboundary contexts.

土地利用/土地覆盖（LULC）变化和气候变率对地表水可用性的影响对于跨界水资源管理至关重要。然而，大多数水文模型忽略了流域的社会经济（SE）异质性，可能导致过于简化或不准确的结论。本研究旨在分析在解开LULC变化和气候变率对奥卡万戈流域地表水产量的影响时，将社会经济区域纳入水文分析的价值。利用InVEST产水模型，我们模拟了2004年、2013年和2020年的地表水可用性，结果与观测到的排放数据非常吻合(R2 = 0.88, p <；0.05)。结果表明，流域平均地表水深度从2004年的459 mm下降到2020年的299 mm，减少了35%，与区域干旱趋势和人为压力增加相一致。2004-2013年和2013-2020年期间，气候变率分别解释了81.7%和78.5%的产水量变化。然而，在SE 2、SE 7和SE 13等高度变化区，LULC变化占了50%以上的变化，凸显了水文驱动因素的空间异质性。通过纳入社会经济区划，本研究提供了对地表水动态的更细致和与政策相关的理解，并支持在跨境背景下设计有针对性的、特定区域的水管理策略。

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Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

Watershed Ecology and the Environment

Pub Date : 2025-01-01

引用次数: 0

Soil quality assessment and land capability evaluation for determining integrated watershed management model through SWOT analysis and AHP method in Arjasa Sub-watershed, Indonesia 采用SWOT分析法和AHP法对印尼Arjasa子流域进行土壤质量评价和土地能力评价，确定流域综合治理模式

Watershed Ecology and the Environment

Pub Date : 2025-01-01 DOI: 10.1016/j.wsee.2025.02.001

Bambang Hermiyanto , Cindia Mawarni , Sugeng Winarso , Subhan Arief Budiman

Arjasa sub-watershed is the upstream area of Bedadung watershed, playing a significant role in Jember Regency. Damage to this area can be caused by inappropriate land use and management, leading to a substantial reduction in the health of Bedadung watershed. Despite the significant role, there is no information on the level of soil quality and land capability in Arjasa sub-watershed that can be used for condition monitoring. Furthermore, there is a lack of previous analysis on determining the integrated watershed management model (IWMM). Therefore, this study aims to define the level of soil quality and land capability classes (LCC) as well as construct appropriate IWMM through SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis and AHP (Analytical Hierarchy Process) method. The research revealed that the average SQI ranges between the low category (0.38) in cluster 3, medium (0.49 – 0.53) in clusters 1, 2, 5, 6, 7, and the good category (0, 77) in cluster 4. The indicators determining SQI included in MDS are Ca, organic C, pH H2O, and base saturation, respectively. Apart from that, this research identified four LCCs, namely classes IV, VI, VII, and VIII with the main limiting factors being permeability, erosion rate, and slope. Class IV is found in cluster 1 and Cluster 7 with a total area of 626.6 ha (18.6 %). Class VI is found in cluster 5 with a total area of 107.6 ha (3.2). Class VII is found in clusters 2, 3, and 6 with a total area of 2,132.1 ha (63.4 %). Meanwhile, Class VIII is in cluster 4 with a total area of 497.8 ha (14.8 %). From the aspect of land capability, only clusters 1 and 7 can be used for agricultural cultivation, while the other clusters are not suitable for agricultural land. It was concluded that the main priority of IWMM models those suitable to the characteristic of the research site is law enforcement against offenders of illegal logging and inappropriate land use practices.

Arjasa子流域是贝大东流域的上游地区，在11月摄政期间发挥了重要作用。不适当的土地使用和管理可能对这一地区造成损害，导致贝大洞流域的健康状况大幅下降。尽管具有重要作用，但没有关于Arjasa次流域土壤质量和土地能力水平的信息可用于条件监测。此外，对于流域综合管理模式（IWMM）的确定，前人也缺乏相关的分析。因此，本研究旨在通过SWOT （Strengths, Weaknesses, Opportunities, and Threats）分析和AHP （Analytical Hierarchy Process）方法定义土壤质量水平和土地能力等级（LCC），并构建相应的IWMM。研究表明，平均SQI范围在聚类3的低类别（0.38），聚类1、2、5、6、7的中类别（0.49 - 0.53）和聚类4的好类别（0,77）之间。MDS中测定SQI的指标分别为Ca、有机C、pH H2O和碱饱和度。此外，本研究还确定了4个lcc，即IV、VI、VII和VIII类，其主要限制因素是渗透率、侵蚀速率和坡度。IV类分布在集群1和集群7，总面积为626.6 ha（18.6%）。第VI类位于第5群，总面积为107.6公顷（3.2）。第七类分布在集群2、3和6，总面积为2132.1公顷（63.4%）。第八类在第四集群，总面积497.8 ha（14.8%）。从用地容量来看，只有集群1和集群7可用于农业种植，其他集群均不适宜用于农业用地。结论认为，适合研究地点特点的IWMM模型的主要优先事项是对非法采伐和不适当土地利用行为的罪犯进行执法。

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