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A tree species selection method for urban forests to alleviate the urban heat island effect

An urban heat island effect and forest technology, applied in climate change adaptation, instruments, measurement devices, etc., can solve problems such as unfavorable layout of urban forests and lack of feedback improvement links.

Active Publication Date: 2020-01-03
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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Problems solved by technology

However, the selection of tree species in each city is still judged from botanical characteristics and experience, and because the urban green space management department often cooperates with the urban development and planning department, there is no feedback and improvement link, which has great impact on the layout of the entire urban forest. very unfavorable

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  • A tree species selection method for urban forests to alleviate the urban heat island effect

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Embodiment Construction

[0015] (1) This method was used in Jinjiang City, Fujian Province. The spatial statistical method was used to analyze the driving force of the main influencing factors of urban forest surface temperature. The results showed that tree species are the main factors affecting forest surface temperature. Based on this result, the selection in Jinjiang City was carried out. Click Retrofit. Jinjiang City belongs to the south subtropical monsoon climate, which also has the characteristics of oceanic climate. The four seasons are not obvious. Summer is from May to October, and the annual average temperature is 18.3-21.3°C. The forest is showing a trend of reduction and fragmentation. In 2014, there were about 6,000 patches, and the total forest area was 9,566 hectares. Its specific implementation is as follows.

[0016] 1. Use the 3 Landsat 8 remote sensing images including the Jinjiang area on July 6, 22 and August 7, 2014 with frame number 119 / 43 for inversion. After the images are ...

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Abstract

The present invention belongs to the technical field of forest management, and relates to an artificial plantation tree species selection method. A specific tree species selection method for relieving the urban heat island effect is designed by utilization of a relatively convenient data acquisition approach and relatively little capital and staff investment. The method is mainly formed by four stages including surface temperature remote sensing and inversion, ground investigation data fusion, hot and cold point space recognition and tree species composition data mining. The urban heat island effect can be relieved in the urban scale, urban forest management is guided to select tree species for relieving the heat island effect more effectively, and the urban forest cooling function level can be increased.

Description

technical field [0001] The invention belongs to the technical field of stand transformation and relates to a method for selecting tree species. Background technique [0002] As of 2015, my country's forest coverage rate was 21.6%, far below the world's average level of 31%, but my country's urbanization rate was 56.1%, which has reached the world's average level. The unbalanced development of resources and population has become my country's urbanization One of the main issues for future development. Facing the development trend of highly dense population and increasingly tense land resources in urban ecosystems, in order to develop the economy and improve human welfare, urban land is changing from permeable ground (such as forest land) to impervious ground (such as construction land), making urban forests The area continues to decline, so factors such as forest structure (such as tree species) should be included in the consideration of sustainable urban forest construction. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16Z99/00G01N21/17
CPCG01N21/17G01N2021/1793G06F2219/10G16Z99/00Y02A30/60
Inventor 左舒翟任引云国梁
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI