Dissertation > Excellent graduate degree dissertation topics show

The Study of Fragmentation of Forest Landscape in Wuhan Jiufeng Urban Forest Reserve

Author: WangYanYan
Tutor: ZhouZhiXiang
School: Huazhong Agricultural University
Course: Ornamental Plants and Horticulture
Keywords: Forest Landscape Fragmentation Topographical factors Correlation
CLC: S759.9
Type: Master's thesis
Year: 2006
Downloads: 341
Quote: 3
Read: Download Dissertation

Abstract


Landscape fragmentation is currently a hot issue of landscape ecology research. The landscape fragmentation profound impact on the landscape pattern, functions and processes, is closely related with the protection of natural resources, has important impact on the landscape, biodiversity conservation and forest habitat quality. Wuhan the Jiufeng city forest protection Forest Landscape study to evaluate the status of the fragmentation of the forest landscape, and in-depth to explore the terrain of the forest landscape fragmentation. Quickbird satellite image data of the protected area and 1:10000 relief map data, combined with field landscape resources survey, small class painting on the property survey data, satellite data interpretation and correction with arcview3.2a GIS software to establish Wuhan Jiufeng Urban Forest protected areas information management system, as an analytical research platform; forest landscape of the study area, three classification to generate the distribution of protected areas, forest landscape forest department; combination of landscape pattern index, landscape fragmentation evaluation index system, forest landscape fragmentation to quantify the degree; in the software support ARCGIS8.0 and Fragstats3.3 computing landscape patch density index, the boundary density index, shape index, fractal dimension, the number of patches fragmentation index, the plaque in the shape of broken index, the degree of polymerization, the degree of binding, similar to the adjacent index fragmentation from the landscape plaque number of morphological characteristics and landscape pattern characteristic fragmentation of the protected areas of forest landscape fragmentation status of evaluation; application of statistical methods of crushing principal component analysis of indicators, extract the principal component factors, the application of powerful spatial analysis of ARCGIS8.0 software functionality as well as statistical methods, further analysis of slope, aspect, slope position, altitude four terrain factor affect the fragmentation of the forest landscape. The results show that: (1) landscape fragmentation is not just the level of fragmentation of the landscape elements plaque, more fragmentation of the spatial structure of the landscape as a whole. The two major aspects of this article on the evaluation of the fragmentation of the forest landscape fragmentation from the landscape number of morphological features and landscape characteristics of spatial configuration fragmentation measure to obtain better results. Characteristics evaluation of the the landscape number of morphological fragmentation mainly reflects the degree of fragmentation of the landscape patch size, quantity, shape; landscape spatial configuration fragmentation characteristics evaluation reflect the heterogeneity of the space between the landscape elements combination relations and plaque type changes. (2) from a number of landscape patches form fragmentation feature evaluation perspective, forest landscape protected areas are unevenly distributed, a single type, is much greater than the proportion of coniferous forest broadleaf forests, bamboo groves and bushes; forest landscape patch number and the shape the degree of fragmentation is not high, plaques degree of differentiation and a high degree of heterogeneity, but the plaque irregular shape. Masson pine forest is the main forest landscape landscape patch density and edge density is not high, the extent of its landscape is divided fragmentation trend is not obvious; tea trees artificial cultivation, most rules of the plaque shape: Other Coleus forest, shrubbery rubrum pool Shanlin and cedar forest boundary density and shape of the fragmentation index higher the obvious trend fragmentation. (3) fragmentation of the landscape spatial configuration feature evaluation perspective, forest landscape aggregation index, similar to the adjacent the binding index higher index than on the overall forest landscape spatial configuration continuous connectivity landscape well preserved, the fragmentation trend is not obvious. Masson pine forest of the index are the highest, indicating Masson pine Sean Lin

Related Dissertations

  1. Research and Realization on Synchronization Technology of High Sensitivity GNSS Software Receiver,P228.4
  2. Research on the Super-resolution Technologies of Polarimetric SAR Images,TN957.52
  3. Research on the Constructions of Several Classes of Sequence Based on Interleaving Techniques,TN911
  4. Theanalysis of Harmfulness Factors about Heavy Metals in the Course of Beef Cattle Feeding,S823
  5. Evaluation of Photosynthetic Efficiancy of Seedlings of the Hybrid Progenies （F1） in Peach,S662.1
  6. Research on the Correlation between Education Level and Income Gap,G520
  7. Studies on Effects of Soybean Species on North Tofu Quality and Methods of Evaluation in North Tofu,TS214.2
  8. Effect of Flue-cured Tobacco Continuous Cropping on Soil Chemical and Physical Properties and Tobacco Leaf Quality,S572
  9. Study on Comprehensive Evaluation System of Cut Chrysanthemum and Genetic Analysis of Main Characters,S682.11
  10. Study on Photosynthetic Characteristics of Peach Based on Heterosis of Assimilation Capacity,S662.1
  11. Study on the Expression and Correlation of Metallothionein and Matrix Metalloproteinase-2 in Non-small Cell Lung Cancer,R734.2
  12. Spectrum Variation of Vegetation in Yanzhou Coal Mine Area and Heavy Metal Stress Characteristic,X173
  13. Study on Financial Support to the Development of Photovoltaic Industry in Xinyu City,F832.2
  14. The Correlation between Type D Personality and Anxiety, Depression in Patients with Coronary Heart Disease,R473.5
  15. The consumer information fragmentation Context select the path of,G206
  16. An Empirical Study on Managerial Discretion and Its Relationship with R&D Investment,F224
  17. Research on the Correlation between Chinese Stock Market and Monetary Policy,F832.51;F822.0
  18. An Analysis of Influential Factors on Gold Price Change,F832.54;F724.5
  19. Fragmentation Reactions of N-containing Heterocyclic Compounds in ESI-MS~n,O657.63
  20. Representing and Real-time Probabilistic Query Processing to Uncertain Data with Complex Correlation,TP311.13
  21. Application of Cloudsat Data in the Study of Rainfall Clouds Over Tianshan Mountains,P426.5

CLC: > Agricultural Sciences > Forestry > Forest management,forest measurement science, forest management > Nature Reserve
© 2012 www.DissertationTopic.Net  Mobile