Evaluation of Forest and Grass Habitat Suitability and Quality Improvement Potential in Typical Watersheds in the Middle Reaches of the Yellow River

LIU Zhuangzhuang; JIAO Peng; XIAO Peiqing; YAO Zhihong

doi:10.13870/j.cnki.stbcxb.2024.04.013

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Evaluation of Forest and Grass Habitat Suitability and Quality Improvement Potential in Typical Watersheds in the Middle Reaches of the Yellow River

更新时间：2025-03-12

- Evaluation of Forest and Grass Habitat Suitability and Quality Improvement Potential in Typical Watersheds in the Middle Reaches of the Yellow River
- Vol. 38, Issue 4, Pages: 267-278(2024)
- 作者机构：
  
  1. 华北水利水电大学测绘与地理信息学院,郑州,450045
  2. 黄河水利科学研究院水利部黄土高原水土保持重点实验室,郑州,450003
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2024.04.013
  CLC： S157.2
- Published：2024
- 稿件说明：
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LIU Zhuangzhuang, JIAO Peng, XIAO Peiqing, et al. Evaluation of Forest and Grass Habitat Suitability and Quality Improvement Potential in Typical Watersheds in the Middle Reaches of the Yellow River[J]. 2024, 38(4): 267-278.
DOI：

LIU Zhuangzhuang, JIAO Peng, XIAO Peiqing, et al. Evaluation of Forest and Grass Habitat Suitability and Quality Improvement Potential in Typical Watersheds in the Middle Reaches of the Yellow River[J]. 2024, 38(4): 267-278. DOI： 10.13870/j.cnki.stbcxb.2024.04.013.

摘要

[目的] 为定量评价黄河中游复杂下垫面典型流域的林草生境适宜性及提质潜力。[方法] 综合地理探测器、空间分析、数理统计等多种方法

构建三川河流域林草生境适宜性评价指标体系及评价方法

评价流域现状土地利用条件下的林草适宜度及其提质潜力。[结果] (1)三川河流域影响林地适宜分布的主导因子包括光合有效辐射分量、海拔、土壤侵蚀强度和土壤类型等

影响草地适宜分布的主导因子包括海拔、光合有效辐射分量、土壤类型和土壤湿度等。(2)林地不同适宜度的面积由大到小依次为高度适宜、中高度适宜、不适宜、中度适宜

中度适宜以上面积占林地总面积的81.9%

流域林地布局较为合理;草地不同适宜度的面积由大到小依次为不适宜、中度适宜、中高度适宜、高度适宜

中度适宜以上面积占草地总面积的55.3%

流域草地布局仍有较大优化空间。(3)林地提质面积为223.2 km2

占中度适宜及以上区域总面积的15.4%

区域内大部分林地已达覆盖度阈值水平;各适宜度区域的林地Ⅰ级提质潜力面积占比均在89.0%以上

提质难度较低。草地提质面积为222.3 km2

占中度适宜及以上区域总面积的43.1%

区域内近四成草地仍未达覆盖度阈值水平;各适宜度区域草地Ⅰ级提质潜力的面积占比随适宜度增高而减小

提质难度随适宜度增高而增大。(4)林地可通过加强封禁管控

实施以自然恢复为主的弱干预措施;草地需针对不同适宜度的潜力等级

采取分区适度干预措施

实现草地覆盖度水平的总体提升。[结论] 三川河流域林地格局优于草地

草地提质潜力高于林地。研究构建的林草生境适宜性评价方法

可为黄河中游植物措施合理配置和提质增效提供科技依据。

Abstract

[Objective] In order to quantitatively evaluate the suitability and quality improvement potential of forest and grass in typical watersheds of complex underlying surface in the middle reaches of the Yellow River. [Methods] The evaluation index system and evaluation method of forest and grass suitability in Sanchuan River Basin were constructed by means of geographical detector

spatial analysis

mathematical statistics and other methods

and the forest and grass suitability and its potential for quality improvement under the current land use conditions in the basin were evaluated. [Results] (1) The dominant factors affecting the suitable distribution of forest land in the Sanchuan River Basin include the fraction of absorbed photosynthetically active radiation (FPAR)

elevation

soil erosion intensity and soil type. The dominant factors affecting the suitable distribution of grass land include elevation

FPAR

soil type and soil moisture

etc. (2) The area of forest land with different suitability degrees was from large to small high suitability

unsuitable

mid-height suitability

moderate suitability

and the area above moderate suitable accounted for 81.9% of the total area of forest land. The area of grassland with different suitability degree was in order from large to small: moderate suitability

unsuitable

mid-height suitability

and high suitability

and area above moderate suitability accounts for 55.3% of the total area of grassland

and there was still a large space for optimization layout of grassland in the basin. (3) The area of forest land improvement was 223.2 km2

accounting for 15.4% of the total area of moderate suitability and above areas

and most of the forest land in the area had reached the coverage threshold level. The area of grade I upgrading potential of forest in each suitability area accounted for more than 89.0%

and the difficulty of upgrading was low. The area of grassland improvement was 222.3 km2

accounting for 43.1% of the total area of moderate suitability and above areas

and nearly half of the grassland in the area have not yet reached the coverage threshold; The area proportion of grade I upgrading potential of grassland in each suitability area decreased with the increase of suitability

and the difficulty of upgrading increased with the increase of suitability. (4) The forest land can implement weak intervention measures based on natural restoration by strengthening the control of closure; grassland needs to take appropriate intervention measures according to the potential zoning of different suitability to achieve the overall improvement of grassland coverage. [Conclusion] In the Sanchuan River Basin

the pattern of forest land was better than that of grassland and the potential of grassland improvement is higher than that of forest land. The evaluation method of forest and grass habitat suitability constructed in this study can provide a scientific basis for the rational allocation of plant measures and the improvement of quality and efficiency in the middle reaches of the Yellow River.

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Keywords

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