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Citation:

Dynam ic Spatial-temporalChanges Analysis ofNatural ForestResources Based on RS

  • Received Date: 2006-04-10
  • Th is paper studied the dynam ic spat ia l-temporal changes o f natural forest resources based on RS . Ca ijiachuan Forest Farm, as the typ ical reg ion of distribution o f natural fores,t was the research object, the TM images of1997and 2004 as thema in data sources, w ith the survey data and suppored by IMAGE so ftw are, the authors stud ied thedynam ic spatia l-tempo ral changes of th is area. The results show ed that the area of dom inant tree increased from 1997to 2004, for example, the oak increased by 1. 8%, Chinese p ine increased by 8. 4% , pop lar increased by 6. 7%;M eanwh ile, spat ia l distribut ion has changed; forest coverage rat io increased by approx imately 16. 9%; obvious dynam icchange has been occurred, such as 55. 5% of cutting land w as covered by Chinese pine and 21. 1% w as covered bypoplar. These obv iously changes has close relation w ith the implementation of the natural forest protection pro jec.t
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Dynam ic Spatial-temporalChanges Analysis ofNatural ForestResources Based on RS

  • 1. Co llege of Forest ry, Northwest Sci??T ech ofAgricu lture and Fores try Un iversity, Yangl ing?? 712100, Shaanx,i Ch ina
  • 2. Research Inst itute of Resou rce and Information Techn iques, CAF, Beij ing?? 100091, Ch ina

Abstract: Th is paper studied the dynam ic spat ia l-temporal changes o f natural forest resources based on RS . Ca ijiachuan Forest Farm, as the typ ical reg ion of distribution o f natural fores,t was the research object, the TM images of1997and 2004 as thema in data sources, w ith the survey data and suppored by IMAGE so ftw are, the authors stud ied thedynam ic spatia l-tempo ral changes of th is area. The results show ed that the area of dom inant tree increased from 1997to 2004, for example, the oak increased by 1. 8%, Chinese p ine increased by 8. 4% , pop lar increased by 6. 7%;M eanwh ile, spat ia l distribut ion has changed; forest coverage rat io increased by approx imately 16. 9%; obvious dynam icchange has been occurred, such as 55. 5% of cutting land w as covered by Chinese pine and 21. 1% w as covered bypoplar. These obv iously changes has close relation w ith the implementation of the natural forest protection pro jec.t

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