Dissertation > Excellent graduate degree dissertation topics show
Study on Multiscale Dynamic Change of Forest Landscape Pattern in Jingouling of Jilin Province
Author: YueGang
Tutor: YangHua
School: Beijing Forestry University
Course: Forest Management
Keywords: Landscape heterogeneity Landscape index Point pattern analysis Scale
CLC: S718.5
Type: Master's thesis
Year: 2013
Downloads: 19
Quote: 0
Read: Download Dissertation
Abstract
The study puts forest maps of Jingouling forest farm in1997,2007as data source, where is localed Wangqing forestry bureau in Jilin province. The landscape classification system is established based on RS and GIS, and dynamic change of forest landscape pattern and its scale effect in past10years is studied by the methods of landscape index and Ripley’s K function, in order to provide the basis for rational planning and sustainable management of the forest landscape. Major conclusions of the study were as following:(1)During the period of study, the mixed coniferous&broadleaved forest is landscape matrix of the study area, The area of mix coniferous forest and mix broadleaved forest are bigger than coniferous plantation and poplar&silver birch forest, but shrub, wetland, farming land et al occupy a small proportion. The NPs of coniferous&broadleaved forest, mix coniferous forest and mix broadleaved forest are increasing; The dominance of them are increase and shape are more complex. Area of coniferous plantation and poplar&silver birch forest are decreasing, the degree of fragmentation is adding and shape become more complex. Diversity and evenness are decline, but connectivity become the better than before.(2)The landscape transfer changes of coniferous plantation and poplar&silver birch forest are obvious. Coniferous plantation mainly turn outs mix coniferous forest, farming land, wetland, barren hill, and other land is added source. poplar&silver birch forest turn outs mix broadleaved forest, barren hill is added source of it.(3)Coniferous plantation, mix coniferous forest and mix broadleaved forest showed an aggregated distribution pattern in all spatial scales, aggregation characteristics of coniferous plantation and mix broadleaved forest is weakened, but aggregation distribution characteristics of mix coniferous forest is enhanced. The aggregated distribution characteristics of poplar&silver birch forest gradually weakened, but the uniform distribution is becoming more and more obvious.
|
Related Dissertations
- Aerial Target Anti-interference Recognition and Tracking System,TN215
- 1 - deoxynojirimycin synthetic route design and process optimization,TQ463.5
- Research on ASP Flooding Oil Pipeline Ultrasonic Eliminating Scale Technology,TE39
- Scale Effect on Spatial Expressions of Paddy Soil Organic Carbon in Tai Lake Region,S158
- Citizen Participation of Urban Inhabitant: Structure and Measurement,B849
- Study on Method of Improving Cultivated Area Extraction from Modis Image Based on Scale Transfromation,S127
- Investigation and Analysis on the Current Situation of the Selection of Raw and Formula of for Plant-Scale Composting,S141.4
- A Study on the Coma Scales and Electroencephalogram for the Prediction of the Comatose Patient,R741.044
- Evaluation of Cognitive with Dementia Assessment Scale and the Related Potential P300in Mild Cognitive Dysfunction Patients,R749.1
- Pfizer Financial Shared Services Operations Strategy,F406.72
- Collegiate Nursing Teaching Efficacy Study,R-4
- Schizophrenia cognitive function and quality of life research,R749.3
- Research Scale Structure of the Chengdu-Chongqing Economic Zone urban system,F299.27
- Integrated Benefit Evaluation of Water-saving Reform in Large-sized Irrigation Districts Resources,S274
- Study of the Relationship among Leukoaraiosis and Cognitive Impairment,R749.1
- A Study on Urban Systems in Qinghai Province Based on the Fractal Theory,F299.2
- Micellization and Application of Super-Concentrated Hydrochloric Acid,O643.32
- Poststroke Cognitive Impairment No Dementia: a Neuropsychological Characteristics and Cerebral Blood Flow on SPECT/CT Study,R749.1
- Type of Shanxi Folk Song,J607
- Discussing the Scale of the Urban Sculpture According to the Demand of the Vision,J313.2
- Research on Wear Leveling Strategy of Satellite Multi-Chip Flash Memory,TP333
CLC: > Agricultural Sciences > Forestry > Forestry basic science > Forest Biology > Forest Ecology
© 2012 www.DissertationTopic.Net Mobile
|