East gate, three qing five mu 2 fen 5 li6 hao3 si4 silt high can not get, changed to dry field, per mu rent 3 qian)five [22] is often a text sample. Right after effective details screening, text samples of 147 effective plots were lastly obtained. Then, the word segmentation of the original text was processed to eliminate function words in ROSTCM6.0 based on the location word, place word, nature word, organization word, quantity unit, as well as other components to create a custom segmentation dictionary. Lastly, land use form, management organization, land plot location, land plot region, business enterprise circumstance, and also other fields were Decanoyl-L-carnitine MedChemExpress sorted out. 2.three.two. Spatial Statistics The study matched the web site extracted in the land management records C2 Ceramide Metabolic Enzyme/Protease together with the obtained base map and converted it into the existing web site. ArcGis10.two was utilised to transform the land data into discrete point facts with attributes. This study has obtained the land area info but, because of the limitation of historical literature, it lacked specific spatial configuration data. Consequently, the map can’t be straight drawn, along with the plot places were utilized as the pointing supply information. By utilizing ArcGis10.two for nuclear density statistics with all the plot region because the weight field, this study, to a specific extent, reflects the space distribution of plot size and quantity. It further analyses the variety and core of numerous royal land plots. The formula of kernel density estimation (KDE) is expressed as: f n (x) = 1 hni =wi knx – xi hnEquation: k – xi represents the nuclear density equation; h represents the search hn range and h 0; n represents the amount of plots points inside the search range; wi represents the corresponding weight assigned to each and every plot point xi . 3. Final results 3.1. Land Use 3.1.1. Evaluation in the Land Use Sorts The analysis of your land use varieties is based around the information and facts about the land nature and place attributes retrieved from recorded documents. Within this investigation, the grounded theory [23] is employed to merge by far the most standard types till they’re able to no longer be merged, a method of qualitative research, along with the most important purpose is always to establish a theory based on empirical information. The analysis goes on to calculate the total location of each and every variety right after 22 simple sorts, 15 subdivisional types, and 5 heading varieties are determined. Inside the approach of merging the sorts of plots, some simple types are classified singly as subdivisional sorts. Finally, 15 subdivisional types is often merged into 5 heading types for an intuitive evaluation. The spatial quantitative evaluation of your research mostly focuses around the land sort I (heading sort) and II (subdivisional type) (see Table 1).Land 2021, 10,8 ofAs production land, most farmland is made use of for rice and wheat planting as well as a compact amount for pastures. In line with the water condition, farmland is classified into rice land and dry land. The latter is additional classified in to the categories of wheat field, pasture field, and dry field which might be no cost for any sort of planting. Among these, the wheat and dry field are charged rent and the pasture field is court-planted. The water land refers to water plantation areas within the Forbidden City, the palaces, and also the Chang River. It may be subdivided into river land, cattail field beside the dockyard, and lotus pond, with each scenic and financial value. Both cattail field and lotus pond subdivisions are charged rent, as well as the only distinction among the two is that only lotus could be planted in the lotus pond.Table 1. Statistical chart o.