摘要
以重庆市宏观、动态的遥感影像为主要信息源,基于RS和GIS技术,以林地为研究对象,从土地利用角度对重庆市的森林转型进行分析,并在此基础上对重庆市2020年和2030年的森林转型分布进行预测.研究表明:1重庆市林地面积呈增加趋势,重庆市正处于森林转型的第二个阶段——林地面积净增加阶段,且时间特征和空间特征显著.2由于各区域和各区县发展重点不同,森林转型的程度也各不相同.3随着各项林业政策的实施、林果业的不断发展,耕地、草地成为了林地增加的主要来源,林地的流失主要是流向耕地、草地、建设用地.4根据对重庆市2020年和2030年土地利用变化预测,未来20年重庆市森林转型仍将继续.重庆市森林转型发展进程及其动态模拟研究,在为重庆市制定加快森林转型相关的政策措施提供依据的同时,也能为区域森林转型提供典型的案例.
This study will regard forest land as the research object and use macroscopic dynamic remote sensing image as the main source of information to analyze the spatial and temporal changes since entering the 21 st century.Research shows that Chongqing is in the second stage of forest transition.Because different regions focused on different development,the degree of forest transformation of the different regions is different.With the continuous development of the forestry policy and the implementation of the fruit industry,cultivated land and grassland became the major source of the increase of forest.But at the same time some forest land change to the farmland,grassland,water and land for construction.According to the forecast of land use change in Chongqing city in 2020 and 2030,the next 20 years,Chongqing forest transition will continue.This study provides the basis for relevant policies and measures to accelerate forest transformation and it also can provide a typical case of regional forest transformation.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第6期82-91,共10页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金重大国际合作项目(41161140352)
关键词
重庆市
林地
森林转型
动态模拟
Chongqing
forest land
Forest Transition
dynamic simulation
