Land use optimization in comprehensive land consolidation can meet the different demands for land under different objectives and alleviate potential land use conflicts.The national pilot project of comprehensive land consolidation in Danzhou city in Hainan province is selected as a case in this study.This paper sets two scenarios for comprehensive land consolidation including ecological value priority and realization potential of ecological product value priority under the trade-off between the increasing ecological value and realization potential of ecological product value.And the land use optimization is based on the third national land resource survey of the pilot project.Then the multi-objective programming model and GeoSOS-FLUS model are employed to optimize the land use structure and land use layout under two scenarios in comprehensive land consolidation.The results show that:(1)Compared to the land use status in 2019,the areas of mangrove forest and paddy field significantly increase under the ecological value priority scenario in the pilot project zone.The overall landscape exhibits a high level of polymerization,while evenness and fragmentation levels are relatively high.(2)Compared to the ecological value priority scenario,the areas of mangrove forest and paddy field decrease under the realization potential of the ecological product value priority scenario in the pilot project zone.And the areas of commercial and service land significantly increase.The level of landscape fragmentation of the overall landscape increases as well.(3)There are similarities and differences between the land use layout under the two scenarios and the construction project layout of comprehensive land consolidation in the Implementation Plan for the National Pilot Project of Comprehensive Land Consolidation in the Starting Zone of Danzhou City.Therefore,the areas and spatial layout of different types of land for increasing ecological value and realizing the potential of ecological product value should be considered overall in the comprehensive land consolidation.Meanwhile,we should pay attention to the effects of land use optimization on the landscape.

Environmental deterioration in urbanizing areas increases the risks of sudden death as well as chronic, infectious, and psychological diseases. Quantifying health-related physical environment can assess the health risk of urban residents. This study uses an integrated evaluation method to simulate the health-related physical environment in the four dimensions of acoustic, wind, thermal, and landscape. According to the case study of one university campus in an urbanizing area in China, results show that (1) areas with unqualified equivalent A sound levels are generally the sports area, green square 1 and laboratory areas, and residents who stay in these areas for a long time suffer the risks of hearing loss and mental stress. (2) The windless area ratio of teaching area 1 and dormitory area 4 is larger than 20%, and respiratory health risks increase because these areas relate to relatively wind discomfort. (3) The high-temperature zone ratio of sports area and green square 2 is larger than 50%, and heatstroke risks increase since these areas relate with low thermal comfort. (4) The overall landscape perception level of dormitories and dining areas is lower than that of the teaching area, and it can cause anxiety and irritability. (5) The sports area has the lowest average overall score of the health-related physical environment among all functional areas, followed by laboratory areas. These findings indicate that the proposed model and method can be valuable tools for the pre-evaluation and optimization of urban planning. It can reduce the health risks of residents in urbanizing areas and can benefit residents' health and urban sustainable development.

Cancer is a growing global health threat. Examining the determinants of cancer incidence can benefit for cancer treatment and prevention. Farmland transfer relates to the risk factors of esophageal cancer including environmental pollution, services access, and habits. This study characterizes the associations between farmland transfer and esophageal cancer incidence rate (ECI) that integrate mediated effect of pollution-related agricultural input intensity in Xiaoshan District, China. The state-space model is employed to quantify the relationships among farmland transfer, pollution-related agricultural input intensity, and ECI. The results showed that (1) Total effects of the proportion of transferred farmland (TFA) area cause a reduction in the ECI. Besides, the total positive effects of the proportion of transferred farmland cultivated non-grain crop (NGC) and proportion of farmland transferred to non-farmer users (NFU) show a downward trend. (2) The raise of TFA can result in the reduction of chemical fertilizer use intensity. Meanwhile, the raise of NGC and NFU can result in the growth of pollution-related agricultural input intensity. But these increasing effects generally show a downward trend. (3) Increasing chemical fertilizer use intensity and pesticide use intensity results in the rise of esophageal cancer incidence rate as a whole. (4) In general, farmland transfer has positive direct effects on esophageal cancer incidence rate. (5) The average proportions of mediated effects in all state-space models are larger than 10%. These findings can raise land reform policy designers’ awareness of the risk of public health since the land transfer markets are emerging rapidly in land reform in many developing countries to improve agricultural production.