Green Infrastructure and Socio-Environmental Implications for Urban Sustainability in North and South Delhi

2026-03-17T16:45:01+08:00

Rapid urbanization in Delhi has intensified pressure on urban infrastructure, environmental resources, and the overall quality of life of residents. This study assesses urban sustainability and quality of life in the North and South districts of Delhi by examining the role of green infrastructure and socio-environmental conditions. The research adopts a mixed-method approach combining household survey data, remote sensing analysis, and statistical techniques to evaluate spatial and socio-economic variations in urban sustainability. Vegetation dynamics were examined using satellite-derived vegetation indices, while primary survey data were used to evaluate access to basic urban services such as water supply, sanitation, healthcare, education, waste management, and income levels. The findings reveal notable spatial disparities in green infrastructure distribution and access to basic services between the two districts. South Delhi generally demonstrates better access to socio-economic resources and planned green spaces, while several areas in North Delhi face challenges related to infrastructure provision and service accessibility. The analysis highlights how differences in urban planning, socio-economic conditions, and infrastructure availability influence residents’ quality of life and environmental sustainability. Overall, the study emphasizes the importance of integrating green infrastructure planning with equitable service provision to promote inclusive and sustainable urban development in rapidly expanding metropolitan regions such as Delhi.

The Influence of Manure Application on Soil Health and Agricultural Ecosystem: A Review Focusing on China

2025-12-01T11:08:49+08:00

Manure is essential for integrating crop and livestock systems, but intensive farming has led to a mismatch between massive manure output and its proper use. In China, about 4 billion tons are produced yearly, and raw manure application remains common, posing risks like disease transmission, root damage, soil pollution (e.g., heavy metals, antibiotics), and greenhouse gas emissions. In contrast, well-composted manure improves nutrient supply and soil health while mitigating these risks. This review systematically compares raw and composted manure, analyzing their impacts on soil, water, and air within China’s policy framework (e.g., "Action Plan for Livestock Waste Utilization") and technical standards (e.g., GB/T 25246-2025). while delving into scientific evaluation methods for manure, efficient decomposition processes (including loose stacking, compact stacking, alternating loose-compact stacking, and enhancement techniques such as adding composite microbial agents and biochar), as well as safe application strategies. Key findings indicate that, compared to untreated manure, decomposed manure can increase nitrogen utilization efficiency by 47%, significantly boost soil organic matter (ranging from 122.5% to 354.8%) and humic acid content, and elevate the Shannon–Wiener diversity index of soil microbial communities to 5.6–6.0. Through the adoption of innovative processes such as the "1-Hour Nano-Composting Technology," the decomposition cycle can be substantially shortened, while effectively immobilizing or degrading emerging pollutants such as antibiotics and heavy metals. This paper aims to provide theoretical foundations and practical guidance for promoting the safe and efficient resource utilization of manure.

Research in Ecology

Green Infrastructure and Socio-Environmental Implications for Urban Sustainability in North and South Delhi

The Influence of Manure Application on Soil Health and Agricultural Ecosystem: A Review Focusing on China