A new early vascular plant is described from the Guijiatun Formation of the Guogaishan section, Qujing, Yunnan. This plant shows smooth axes; the rhizomes are characterized by multiple K- or H-shaped branchings, forming a complex branching system; the erect axes are dichotomously branched; and the sporangia are helically arranged, spoon to ovoid shaped in lateral view. The plant is small in size, with better-preserved rhizomes, while the spikes are in poor preservation and the dehiscence line of the sporangia is invisible, and thus it is tentatively designated as cf. Zosterophyllum sp. Nevertheless, the character combination of this plant is different from typical species of Zosterophyllum and other related taxa, enriching the knowledge about the morphological variations of early vascular plants and about the floral assemblages from the Guijiatun Formation. Abundant microconchids, with a diameter of ca. 0.7~2.2 mm, occur on erect axes of the plant. Microconchids are a type of extinct aquatic invertebrates, spanning from the Late Ordovician to late Middle Jurassic, and they show a spiral-shaped calcareous shell and have been found to habitually colonize on various hard substrates including plants. Our finding that microconchids settled on erect axes of cf. Zosterophyllum sp. indicates that this plant was submerged by water during its growth period, and afterwards, the microconchids and their occupied plant axes were transported and then buried.

Based on the support of the new data environment, the spatial adaptability of urban public resources and population distribution in Shenzhen is analyzed from two aspects of adaptability and matching relationship by using various spatial quantization methods, such as kernel density estimation, nearest neighbor analysis, multidistance spatial clustering, cooperative location quotient and two-step mobile search. The results show that the spatial adaptability of public resources and population distribution in different cities has obvious similarity, which is similar in spatial morphology, distribution pattern and proximity effect. Spatial matching relationship between urban public resources and population distribution is different. The non-matching characteristics of urban public resources and population density indicate the “mismatch” and “dislocation” relationship between supply and demand of urban public resources. Aiming at the spatial adaptability of resource elements, the optimization suggestions for three kinds of public resources, such as park green space, school education and health care, are put forward from two scales of city and community.

Taking Jiangjin District of Chongqing as an example, from the perspective of the rural revitalization strategy, the pre-diagnosis before the project implementation is carried out by constructing the analysis framework of “rural development status evaluation-type of country-pre-evaluation of poverty alleviation project” to identify the advantages and disadvantages of rural development. The results show that the average evaluation of the overall planning in Jiangjin District is 0.080, and high-value area is mainly distributed in the north and east of Jiangjin District. The average evaluation of infrastructure in Jiangjin District is 0.819, forming a southern low-value surrounding zone. The average evaluation of living environment is 0.713, forming a southern high-value surrounding zone and a northern low-value zone. According to the current development status, 241 villages in Jiangjin District can be divided into 15 types. The largest number of “planned general-foundation-generalenvironmental general” type is 64, scattered in the northern part of Jiangjin District. The number of poverty alleviation projects implemented in this type of village is 12, which is significantly more than other types of villages. The implementation of the poverty alleviation project in Jiangjin District is mainly concentrated in the west and the south. From the perspective of the type of rural development in the Jiangjin District and the implementation of each project, the improvement of the integrated planning and infrastructure poverty alleviation project has a higher matching degree with the rural development, but the poverty alleviation project to improve the living environment is only 3.