XIA Ji-sheng,YANG Shu-hua.Study on Landscape Pattern Feature and Its Change in Jinsha River Watershed (Yunnan Part)[J].Research of Soil and Water Conservation,2008,15(04):152-156.
金沙江流域云南段景观格局特征及其变化研究
- Title:
- Study on Landscape Pattern Feature and Its Change in Jinsha River Watershed (Yunnan Part)
- Keywords:
- Jinsha river watershed; landscape pattern; landscape changes
- 分类号:
- Q149;P901
- 摘要:
- 金沙江流域是我国西部的生态脆弱区，植被受人为干扰程度较大。通过分析区内各植被类型的斑块规模与变化，可望得出人类活动对流域内植被的影响程度。研究基于TM遥感数据进行，首先，对金沙江流域云南段进行景观格局特征研究，分析该地区各植被类型的斑块数、面积，面积标准差和变异系数及该地区的斑块粒度等；然后，对比分析了流域内前后两期（相隔10 a）的植被与景观规模的变化。分析得出，流域内植被类型的斑块多为小斑块和中斑块，体现出植被景观的高度破碎化。经过10 a的变化后，暖温性针叶林等植被面积增加明显，充分反映出人工造林的成效；此外受人为活动影响后形成的次生性植被增多，说明人类活动对植被的不良影响。在植被总体面积增加的同时，区域内景观的斑块总数却有所减少，说明区域内有小斑块融合成大斑块的趋势。从两个时段植被景观斑块规模的变化可以看出，整个流域植被景观破碎的程度体现出减弱的趋势。
- Abstract:
- Jinsha river watershed is the ecologically fragile area in Chinese western region, and its vegetation was often disturbed by human.Through the study on patch size and change for all kinds of vegetation in this region, the effects from human disturbance can be acquired.Remote Sensing Data (Landsat TM) were used to study landscape patterns in part of Jinsha river watershed, inside Yunnan province; and some patch metrics, such as amounts, areas, standard deviation, coefficient of variance granularity, were calculated.Furthermore, the vegetations and patch size changes between two periods(1996 and 2006), were analyzed, The results show that middle and small patches dominate in this region, and it reflected that landscape are highly fragmentized in this area.After 10 years, the area of warm temperate coniferous forest, increase vastly, it indicates the result of afforestation.But the area of shrub grassland, a secondary vegetation, which comes into being because of human disturbance, also increased, it means the negative impact caused by human.While the plant area increased, patch amount decrease contrary.And small patches tend to inosculate larger patch.All these changes show that the landscape fragmentation has been weakened to some degree in Jinsha river watershed.
参考文献/References:
[1] Sarah E G.Spatial and non-spatial factors:When do they affect landscape indicators of watershed loading[J].Landscape Ecology, 2005, 20(2):177-189.
[2] Faith R, Kearns N, Maggi K, et al.A method for the use of landscape metrics in freshwater research and management[J].Landscape Ecology, 2005, 20(1):113-125.
[3] 王政权.地统计学及在生态学中的应用[M].北京:科学出版社, 1999:150-156.
[4] 郎南军, 郭立群, 孟广涛, 等.金沙江流域高原山地系统分异规律的分析研究[J].北京林业大学学报, 2002, 24(2):31-38.
[5] 周春花, 唐川, 铁永波.金沙江流域云南段泥石流危险度评价[J].中国水土保持科学, 2006, 4(1):65-69.
[6] 唐川.金沙江流域(云南境内) 山地灾害危险性评价[J].山地学报, 2004, 22(4):451-460.
[7] 罗小勇, 陈蕾, 李斐.金沙江干流梯级开发环境影响分析[J].中国环境水力学, 2004, 25(14):7-10.
[8] 袁本朴.长江上游民族地区生态经济研究[M].成都:四川人民出版社, 2002:180-210.
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备注/Memo
收稿日期:2007-5-15。
基金项目:云南省自然科学基金项目（2004D0005Q）；云南大学理（工）科校级科研资助项目（2004Q016B）
作者简介:夏既胜（1974- ），男，湖南武冈人，讲师，博士，主要从事景观生态学与GIS应用方面的研究。E-mail：xiajsh@yuu.edu.cn
通讯作者:杨树华（1951- ），女，云南玉溪人，教授，博士生导师，主要从事景观生态学方面的研究