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Integrated Ecosystem Sustainability Approach: Toward a Holistic System of Thinking of Managing Arid Ecosystems
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作者 Meshal M. Abdullah Amjad T. Assi Nasser B. Asadalla 《Open Journal of Ecology》 2019年第11期493-505,共13页
Ecosystems in arid regions play a pivotal role in providing services to vulnerable environments with considerable challenges including extreme temperatures, low precipitation, variable climate change, and infertile so... Ecosystems in arid regions play a pivotal role in providing services to vulnerable environments with considerable challenges including extreme temperatures, low precipitation, variable climate change, and infertile soil. The countries of the arid regions are facing more challenges due to land degradation, biodiversity loss, the scarcity of water and food resources, and protecting their inhabitant’s public health. In many cases, policymakers in these countries are aware of the challenges, but they are seeking through scientific communities to develop clear sustainability and resiliency plans. Due to the complexity associated with arid ecosystem services, the scientist communities are still focusing on the development of integrated ecosystem management approaches. Within this line of commitment to our future generation, the paper in hand presents a framework for an Integrated Ecosystem Sustainability Approach (IESA). The core of this nexus approach is to understand and quantify the interlinkages between the ecosystem components, internal and external stresses, and society needs. The paper also identifies the key gaps to be considered when applying the IESA approach to arid ecosystem management plans. 展开更多
关键词 INTEGRATED ecosystem Sustainability APPROACH (IESA) ecosystem Services ARID and SEMI-ARID ecosystem ecosystem Complexity ecosystem nexus
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考虑河流生态需水约束的调水规模研究 被引量:4
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作者 张丹 鲍军 +4 位作者 李想 尹冬勤 王芳 许凤冉 穆祥鹏 《南水北调与水利科技(中英文)》 CAS CSCD 北大核心 2023年第5期917-929,共13页
为减少以调水和蓄水工程为主体的区域水网建设对生态环境的影响,以大通河为研究对象,筛选9种水文学方法计算青石嘴、天堂、享堂3个关键控制断面12种不同的生态流量过程,基于过去60年径流时空分布以及水-能源-生态(water-energy-ecosyste... 为减少以调水和蓄水工程为主体的区域水网建设对生态环境的影响,以大通河为研究对象,筛选9种水文学方法计算青石嘴、天堂、享堂3个关键控制断面12种不同的生态流量过程,基于过去60年径流时空分布以及水-能源-生态(water-energy-ecosystem,WEE)纽带模型,开展生态调度计算分析。结果显示:大通河干流河道内生态流量过程沿程增加,青石嘴、天堂、享堂3个断面年生态需水总量分别为1.62亿~14.54亿m^(3)、2.46亿~22.04亿m^(3)和2.88亿~25.46亿m^(3),且均以Q90_Q50方法为最大,Tennant(10%)方法为最小;在不同生态需水约束下,引大济湟工程调水规模介于2.25亿~8.81亿m^(3),占流域多年平均径流量的7.8%~30.5%;生态需水保障率整体表现为非汛期高于汛期,上游高于下游。兼顾生态环境保护与经济社会发展双重目标,为合理确定调水规模提供技术支撑。 展开更多
关键词 生态流量 水文学方法 水-能源-生态纽带 调水规模 大通河
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