The rapid economic development in China has resulted in the huge migration of people into city and the continuous expansion of urban areas, in which a new kind of urban landscape, named urban village has formed. Due to the high density of buildings and the status of disordered land utilization in urban village, many special and typical street and lane spaces are formed, which are usually neglected or simply managed. However, the crowds of people need a proper public space and public life for adjustment of all kinds of social and mental problems aroused from long-term staying in a narrow indoor and outdoor space in urban village.This research uses counting method, observations, interviews and space syntax to investigate the status quo of public space and public life in streets of Baishizhou Urban Village. Results show that the space accessibility of street is weak and the space comprehensive quality is low. The majority of public activities are necessary activities. People tend to expect different types of activities and functional facilities, as well as a confortable, safe and green environment. We suggest establishing a slow traffic; providing rest and landscape facilities; enhancing safety, and increasing the use of boundary space, which can solve most of the problems considering economic and practical aspects. The approach to investigate the public space and life in this study can be applied to other urban villages, and even different types of public space. The results and improvement suggestions are suitable for other research for the quality of public space and life in streets of urban village.

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Understanding the effects of human modification on ecosystem services is critical for effectively managing multiple services and achieving long-term sustainability. The historical dynamics of ecosystem services are important for detecting the impacts before and after intensive modification and deserve further study. To this end, we quantified the spatiotemporal dynamics of 11 ecosystem services across the Sihu agricultural watershed in 1954, 1983, 2001, and 2018. We used the Spearman coefficient, self-organized maps clustering, and redundancy analysis to explore the spatial patterns and potential modification drivers of temporal variations of ecosystem service provision. The results revealed the following: (1) The spatial correlations among ecosystem services in a single year were inconsistent with the ecosystem service change associations during two-time steps. The snapshot correlations at one time led to misunderstandings (such as water yield and runoff control or soil carbon sequestration, and habitat quality changed direction from synergy to trade-off) and missed synergies (such as water purification and recreational potential); (2) Most ecosystem services could be synergetic in one bundle with multifunctionality before intensive modification, but later transformed to single or limited services dominated bundles, especially in lake-polder areas; (3) Lake reclamation and hydraulic infrastructure were the most significant modification indicators explaining the variation of ecosystem services (30.9% of variance explained by lake reclamation in 1954, 38.2% of variance explained by hydraulic infrastructure in 2018). Meanwhile, changes in dominant drivers also indicated the transition from lake-based ecosystem service supply to engineered service. An improved understanding of the spatiotemporal pattern of ecosystem services and the underlying human modification influence is vital for realizing the sustainability and multifunctionality of agricultural watershed.

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