Suchergebnisse

Introduction -- Conceptual Framework -- Relationship between urban biodiversity and built environment and in macro scale: The case study of Shanghai, China -- Relationship between diversity and built environment in micro scale: The case study in blocks along Century Avenue, Pudong New District, Shanghai -- Urban planning and design optimization approaches to support biodiversity -- Conclusion and future prospect.

This book proposes the concept of urban multiple habitats and then analyzes its corresponding classification, function and potential supply capability. It provides an analysis framework for studying the relationship between urban biodiversity and built environment, and for considering the loss of urban habitats caused by high-density development. It argues that urban biodiversity is a key indicator for assessing urban ecosystem services. On this basis, the book then presents a case study mainly focusing on wild birds in Shanghai, as urban wild birds and their species could be viewed as an essential indicator for evaluating healthy ecosystem of contemporary cities. Based on the empirical findings, the book proposes an assessment model for urban biodiversity performance and a range of principles, strategies and key indicators regarding the optimization of urban planning and design practice to enhance urban biodiversity performance

International audience ; In contrast to the ongoing worldwide uncontrolled expansion of urban development resulting in sprawled cities, compact cities have been argued by planners and researchers to be the more sustainable urban form. However, in compact cities, it has been shown that a low proportion of green spaces jeopardizes the sufficient supply of urban ecosystem services. This suggests that there remains a deficiency in clear visions for operationalizing compact and green cities. To remediate this, this paper introduces a systemic conceptual framework for compact and green cities by combining the concepts of smart growth and green infrastructure. The indicator-based, smartcompact-green city framework includes two aspects: 1) smart compact cities (considering the need to limit urban sprawl through smart growth) and 2) smart green cities (reflecting the preservation and (re-)development of urban green infrastructure). The paper suggests that there is the need to balance these two aspects to develop a systemic approach towards smart-compact-green cities. A hierarchical target system grounded on four characters for smart compact and smart green cities is developed. Smart-compact-green cities can be characterized through a 1) smart environment of compact and green cities, 2) smart multifunctionality of compact and green cities (economic, social, environmental), 3) smart government for compact and green cities and 4) smart governance for compact and green cities. The characters comprise twelve factors defined by 39 indicators for smart compact cities and 44 indicators for smart green cities, respectively. The systemic framework can support researchers and practitioners to develop visions of how existing or future cities can approach smart-compact-green cities in mainstreaming the ecology of and for cities by better understanding the complexity of urban systems and providing a basis for a systematic spatial monitoring.

AbstractPolyphosphate accumulating fungi was cultured to remove and recover the excessive phosphorus from dairy manure wastewater (DMW). The microbial treatment removed 83.9% of phosphorus in 20‐fold diluted DMW by the fungal biomass in 12 h. At the meantime, 33.6% of chemical oxygen demand, 46.5% of total nitrogen, and 89.4% of total ammonia nitrogen were removed as well. At seventh reuse batch, the cells could still remove 50.4% of phosphorus from the diluted wastewater. The average phosphorus removal efficiency in seven reuse batches was calculated as 62.1%, the nitrogen‐to‐phosphorus ratio in DMW increased from 3.6 : 1 to 6.3 : 1. With the treatment, DMW will be more suitable for farmland irrigation, with the better nutritional ratio to support crop growth, and it will help mitigate phosphorus pollution to water bodies caused by over‐applied phosphorus in the farmland.