[1]CHENG Dongya,LI Xudong.Research on Evaluation of Forestland and Grassland Protection in Southwest Mountainous Basin—A Case Study of the Chishui River Basin in Guizhou Province[J].Research of Soil and Water Conservation,2019,26(04):328-335.
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Research on Evaluation of Forestland and Grassland Protection in Southwest Mountainous Basin—A Case Study of the Chishui River Basin in Guizhou Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 04
Page number:
328-335
Column:
Public date:
2019-06-11
- Title:
- Research on Evaluation of Forestland and Grassland Protection in Southwest Mountainous Basin—A Case Study of the Chishui River Basin in Guizhou Province
- Keywords:
- forestland and grassland; Chishui River Basin in Guizhou Province; southwest mountain basin
- CLC:
- X826;Q948
- DOI:
- -
- Abstract:
- According to the DEM data, soil data and vegetation data of the Chishui River Basin in Guizhou Province, the evaluation factors such as slope, aspect and vegetation coverage were extracted, and the analytic hierarchy process method was used to comprehensively evaluate the forestland and grassland protection areas. After use of the equal interval, forestland and grassland protection area of the basin was divided into five grades: Class Ⅰ, Class Ⅱ, Class Ⅲ, Class Ⅳ and Class Ⅴ. The conclusions are drawn as the follows. (1) The comprehensive evaluation scores of forestland and grassland protection areas of the Chishui River Basin in Guizhou Province are between 1.20 and 4.69. (2) The area of the Class V protected areas of forestland and grassland in the upper and middle section of the Chishui River Basin in Guizhou Province is relatively large, and the area of the Class Ⅰ protected areas in the lower section is relatively large. (3) The standard ellipse spatial distribution of the Class Ⅰ protected areas of the Chishui River Basin in Guizhou Province roughly present towards the north-south direction. The Class Ⅱ protected areas have no spatial direction, and the Class Ⅲ—Ⅴ protected areas are basically towards the northeast-southwest direction. (4) After the equal interval classification, the proportions of Class Ⅰ, Class Ⅱ, Class Ⅲ, Class Ⅳ and Class Ⅴ protected areas in the forestland and grassland protection areas of the Chishui River Basin in Guizhou Province are 10.34%, 31.83%, 24.25%, 27.02%, 6.57%, respectively. (5) The protection pressure of Qixingguan and Renhuai forestland and grassland in the Chishui River Basin in Guizhou Province is relatively high, and the protection pressure of forestland and grassland is relatively small.
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1900-01-01