Fifty Years of Change in a Coniferous Forest in the Qilian Mountains, China—Advantages of High-Definition Remote Sensing
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area
2.2. Remote-Sensing Data Acquisition and Pre-Processing
2.3. Data Analysis
2.3.1. Changes in the Distribution of Picea crassifolia Kom.
2.3.2. Landscape Changes of Picea crassifolia Kom.
3. Results
3.1. Shift in the Forest Cover
3.2. Landscape Changes
4. Discussion
4.1. Landscape Pattern Characteristics of Picea crassifolia Kom. Forest
4.2. Landscape Pattern Change in Dayekou Catchment
4.3. Possible Reasons of Picea crassifolia Kom. Forest to Changes
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Metrics | Name | Description |
---|---|---|
Area and Edge | Largest Patch Index (LPI) | The proportion of the largest patch area |
Shape | Perimeter-Area Fractal Dimension (PAFRAC) | Non-randomness or degree of aggregation for different patches |
Aggregation | Patch Density (PD) | Number of patches per unit area |
Splitting Index (SPLIT) | The number of patches in a landscape divided into equal sizes keeping landscape division constant, express the separation degree of individual distribution in different | |
Aggregation Index (AI) | The degree of aggregation of similar patches | |
Landscape Shape Index (LSI) | Continuity and complexity of landscape shape and the measurement of the perimeter-to-area ratio for the landscape as a whole |
Metrics | First Scale Domain | The Appropriate Scale |
---|---|---|
LPI | 2–5 m | >5 m |
PAFRAC | 2–8 m | 3–7 m |
PD | 6–10 m | 7–9 m |
SPLIT | 2–5 m | >5 m |
AI | 3–10 m | 2–9 m |
LSI | 4–12 m | 3–11 m |
All | 6–8 m | 7 m |
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Fang, S.; He, Z. Fifty Years of Change in a Coniferous Forest in the Qilian Mountains, China—Advantages of High-Definition Remote Sensing. Forests 2020, 11, 1188. https://doi.org/10.3390/f11111188
Fang S, He Z. Fifty Years of Change in a Coniferous Forest in the Qilian Mountains, China—Advantages of High-Definition Remote Sensing. Forests. 2020; 11(11):1188. https://doi.org/10.3390/f11111188
Chicago/Turabian StyleFang, Shu, and Zhibin He. 2020. "Fifty Years of Change in a Coniferous Forest in the Qilian Mountains, China—Advantages of High-Definition Remote Sensing" Forests 11, no. 11: 1188. https://doi.org/10.3390/f11111188