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首页> 外文会议>第16届国际地理信息科学与技术大会（16th International Conference on GeoInformatics and the Joint Conference）论文集 >Land Use/Land Cover Change Geo-Informative Tupu of Nujiang River in Northwest Yunnan Province
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Land Use/Land Cover Change Geo-Informative Tupu of Nujiang River in Northwest Yunnan Province

机译：land use/land cover change Geo-informative TU PU of nu将river in northwest Yunnan province

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Land Use/Land Cover Change (LUCC) is the core components of global change researches.It is significant for understanding regional ecological environment and LUCC mechanism of large scale to develop the study of LUCC of regional level.Nujiang River is the upper reaches of a big river in the South Asia--Salween River.Nujiang River is a typical mountainous river which is 3200 kilometer long and its basin area is 32.5 ×105 square kilometer.It locates in the core of "Three Parallel Rivers" World Natural Heritage.It is one of international biodiversity conservation center of the world,the ecological fragile zone and key ecological construction area,as well as a remote undeveloped area with high diversity ethnic.With the rapidly development of society and economy,the land use and land cover changed in a great degree.The function of ecosystem has being degraded in some areas which will not only impact on the ecological construction of local area,but also on the ecological safety of lower reaches --Salween River.Therefore it is necessary to carry out the research of LUCC of Nujiang River.Based on the theory and methods of geo-information Tupu,the "Spatial Pattern" and "Change Process" of land use of middle reach in Nujiang River from 1974 to 2004 had been studied in quantification and integration,so as to provide a case study in local area and mesoscale in time.Supported by the remote sensing and GIS technology,LUCC Tupu of 1974-2004 had been built and the characteristics of LUCC have been analyzed quantificationally.The results showed that the built-up land (Included in this category are cities,towns,villages,strip developments along highways,transportation,power,and communications facilities,and areas such as those occupied by mills,shopping centers,industrial and commercial complexes,and institutions that may,in some instances,be isolated from urban areas),agriculture land,shrubbery land,meadow & grassland,difficultly/unused land increased from 1974 to 2004,the increased area of shrubbery land was the greatest,while the area of forest,artificial forest,waters,glacier and snow covered land decreased.The biggest decreased area was forest land.The biggest LUCC was the transformation from forest land to shrubbery land,the transformation from forest land to rangeland and agriculture land was the second.The main area of LUCC located at Nujiang River valley,between 2200-3700m of the east slope in the Gaoligong Mountain and 2800-3900m of the west slope of the Biluo Snow Mountain.From the valley to peak of mountain,the main land use type was transited from built-up land,agricultures land,artificial forest land to natural forest,shrubbery and grass land.The natural forest was the main land in the past 30 years.The main driving forces were the increase of population of local area,the governmental policies (Conversion of Farmland to Forests and Grass Land Projects,etc.) and urbanization.In order to accelerate the sustainable development of society economy and the ecological environment protection in this ecological fragile zone,strict management should be adopted to adjust the behaviors of human beings.Finally,VCM (variable clumping method) curve had been used to analyses the internal spatial distribution difference of land-use/land cover which shown that the landscape fragmentation was increased,the number of patches was added,the distance between patches was diminished during the past thirty years (1974-2004).
机译：土地利用/土地覆被变化（LUCC）是全球变化研究的核心组成部分，对于了解区域生态环境和大规模LUCC机制具有重要意义，对开展区域层面的LUCC研究具有重要意义。南亚的一条大河-萨尔温江。怒江是一条典型的山区河流，长3200公里，流域面积32.5×105平方公里，位于世界自然遗产“三大平行河流”的核心。是世界国际生物多样性保护中心之一，生态脆弱区和重点生态建设区，也是偏远的少数民族高度发达的不发达地区。随着社会经济的飞速发展，中国的土地利用和土地覆被发生了变化。在某些地区，生态系统的功能已经退化，这不仅会影响当地的生态建设，而且还会影响到下游的生态安全。 es --Salween River。因此有必要开展怒江流域土地利用变化研究。基于图谱地理信息学的理论和方法，研究中游河段中游土地利用的“空间格局”和“变化过程”。对1974年至2004年的怒江进行了定量和积分研究，以便及时地在局部和中尺度上提供实例研究。在遥感和GIS技术的支持下，建立了1974-2004年的LUCC图浦及其特征。结果表明，已建成土地（包括城市，城镇，村庄，公路沿线的条状发展，交通，电力和通讯设施以及工厂占地等）已被定量分析。从1974年到2004年，购物中心，工业和商业综合体以及可能在某些情况下与市区隔离的机构，农业用地，灌木丛用地，草地和草地，困难/未使用的土地增加了灌木林地面积最大，而森林，人工林，水，冰川和积雪的土地面积减少。降幅最大的是林地。最大的LUCC是从林地向灌木林地的转化，从林地到灌木林的转化。森林土地面积仅次于牧场和农业用地。土地利用变化的主要区域位于怒江流域，在高黎贡山东坡的2200-3700m和碧螺雪山西坡的2800-3900m之间。从谷地到山峰，主要土地利用类型已由建设用地，农业用地，人工林地转变为天然林，灌木丛和草地。过去30年来，天然林是主要土地。推动力包括当地人口的增加，政府政策（退耕还林和草地工程等）和城市化进程。在该生态脆弱区进行生态环境保护，应采取严格的管理措施来调整人类的行为。最后，采用可变集聚法（VCM）曲线分析了土地利用/覆被的内部空间分布差异。在过去的三十年（1974-2004年）中，景观破碎化增加了，斑块的数量增加了，斑块之间的距离减小了。

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