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基于空间特点的老旧居民小区同功能区域重划分研究
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作者 张芸 《山西建筑》 2025年第1期38-40,54,共4页
老旧小区的居住环境可能因年久失修而变得陈旧和不安全,重划分研究有助于改善小区的绿化、照明、交通等基础设施,提升居民的居住舒适度和安全感。为此,该研究分析了老旧居民小区空间特点,基于此,以空气质量、噪声水平、交通便利性、绿... 老旧小区的居住环境可能因年久失修而变得陈旧和不安全,重划分研究有助于改善小区的绿化、照明、交通等基础设施,提升居民的居住舒适度和安全感。为此,该研究分析了老旧居民小区空间特点,基于此,以空气质量、噪声水平、交通便利性、绿化覆盖率为目标函数,结合目标权重,构建老旧居民小区同功能区域重划分模型。引入免疫机制改进免疫粒子群算法,求解该模型。实例分析结果显示:研究方法应用后同功能区域利用率明显升高。该方法能够充分利用小区现有的空间资源,通过合理布局和功能整合,提高空间利用率,减少资源浪费。 展开更多
关键词 空间特点 老旧居民小区 同功能区域 改进免疫粒子群算法 重划分
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Towards Regional Synergy: Reconciling Rangeland Ecological Functioning with Forage Production of Cultivated Pasture 被引量:8
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作者 SHI Peili ZHANG Xianzhou 《Journal of Resources and Ecology》 CSCD 2020年第3期247-252,共6页
Animal husbandry and crop farming are specialized for development in separate areas on the Tibetan Plateau. Such a pattern of isolation has led to current concerns of rangeland and farming system degradation due to in... Animal husbandry and crop farming are specialized for development in separate areas on the Tibetan Plateau. Such a pattern of isolation has led to current concerns of rangeland and farming system degradation due to intensive land use. The crop-livestock integration, however, has been proven to increase food and feed productivity thorough niche complementarity, and is thereby especially effective for promoting ecosystem resilience. Regional synergy has emerged as an integrated approach to reconcile rangeland livestock with forage crop production. It moves beyond the specialized sectors of animal husbandry and intensive agriculture to coordinate them through regional coupling. Therefore, crop-livestock integration(CLI) has been suggested as one of the effective solutions to forage deficit and livestock production in grazing systems. But it is imperative that CLI moves forward from the farm level to the regional scale, in order to secure regional synergism during agro-pastoral development. The national key R & D program, Technology and Demonstration of Recovery and Restoration of Degraded Alpine Ecosystems on the Tibetan Plateau, aims to solve the problems of alpine grassland degradation by building up a grass-based animal husbandry technology system that includes synergizing forage production and ecological functioning, reconciling the relationship between ecology, forage production and animal husbandry, and achieving the win-win goals of curbing grassland degradation and changing the development mode of animal husbandry. It is imperative to call for regional synergy through integrating ecological functioning with ecosystem services, given the alarming threat of rangeland degradation on the Tibetan Plateau. The series of papers in this issue, together with those published previously, provide a collection of rangeland ecology and management studies in an effort to ensure the sustainable use and management of the alpine ecosystems. 展开更多
关键词 Tibet Plateau ecosystem restoration and reconstruction crop-livestock integration regional synergy reconciling rangeland functioning with forage production
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