摘要
以贵州省草地为研究对象,基于贵州省30米分辨率地表覆盖数据集,运用地理信息系统、相关分析和主成分回归分析方法,探索了贵州省天然草地空间分布及其影响因素。发现贵州省草地面积约178.51万公顷,约占贵州省国土面积1/10,主要分布于西部地区的毕节、安顺、六盘水和兴义等市。草地主要分布于低温、高湿和高海拔的条件下,与人类活动强度相关性较小。贵州省草地是森林植被遭到人为破坏后形成的次生草地,在温度较高、海拔较低的区域,经过人类破坏后形成的草地,可以迅速向灌木和林地演替,在温度较低、降水较多、海拔较高的地区正向演替困难,能够形成比较稳定的次生草地,形成草地主要分布于温度较低、海拔较高,湿冷的环境空间格局。希望本研究能够为更好地开发利用贵州省草地资源提供一定的决策支持。
This paper took grassland in Guizhou province as research object,and the spatial distribution of natural grassland and their influencing factors were explored using GIS methods,correlation analysis and principal component analysis based on the 30-meter resolution land cover data set of Guizhou province.The results showed that the grassland of Guizhou province was about 1,785,100 hectares,accounting for about 1/10 of the territory of Guizhou province.The grassland of Guizhou province mainlydistributed in Bijie,Anshun,Liupanshui,and Xingyi.Grassland mainly distributed under the conditions of low temperature,high humidity and high altitude,and had no correlation with the intensity of human activities.The grassland in Guizhou province was the secondary grassland formed after the destruction of forest vegetation by human factors.In the regions with higher temperature and lower altitude,the grassland formed after the destruction of human beings can be quicklyreplaced by shrub and forest.However,the progressive succession was difficult for areas with low temperature,high precipitation and high altitude,forming relatively stable secondary grassland and the specific wet-cold environment spatial distributed pattern.We hoped that this study can provide decision support for the better development and utilization of grassland resources in Guizhou province.
作者
聂祥琴
杨胜会
杨琴
张淑炜
陈可可
陈关飞
程华
赵学春
董瑞
李舟
魏建洲
金宝成
NIE Xiangqin;YANG Shenghui;YANG Qin;ZHANG Shuwei;CHEN Keke;CHEN Guanfei;CHENG Hua;ZHAO Xuechun;DONG Rui;LI Zhou;WEI Jianzhou;JIN Baocheng(College of Animal Science,Guizhou University,Guiyang,Guizhou 550025,China;Fujian Agriculture And Forestry University Key Lab of Soil Ecosystem Health and Regulation,Fujian Agriculture And Forestry University,Fuzhou,Fujian 350002,China;State Key Laboratory of Grassland Agroecosystems/College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou,Gansu 730020,China;School of Life Sciences,Lanzhou University,Lanzhou,Gansu 730000,China;Center for Quantitative Biology/College of Science,Gansu Agricultural University,Lanzhou,Gansu 730000,China)
出处
《山地农业生物学报》
2021年第3期29-35,共7页
Journal of Mountain Agriculture and Biology
基金
国家自然科学基金项目(31700390)
贵州省基础研究计划(黔科合基础[2019]1074)
贵州大学人才引进项目(贵大人基合字[2016]75和贵大人基合字[2017]17)
大学生创新创业训练计划项目(201710657076和20190657093)。
关键词
贵州省
天然草地
群落演替
主成分回归分析
Guizhou Province
natural grassland
community succession
principal component analysis
