吉尔格朗河流域塞威氏苹果53年来景观格局动态变化  

Dynamic changes of landscape pattern of the Malus sieversii(Ldb.)Roem in the Gilgrand River Basin in the past 53 years

作　　者：李健[1,2,3] 贾翔[1,2,3] 陈蜀江 许超宗[1,2,3] 刘逸豪 罗青青[5] 黄铁成 陈孟禹 LI jian;JIA Xiang;CHEN Shujiang;XU Chaozong;LIU Yihao;LUO Qingqing;HUANG Tiecheng;CHEN Mengyu(Xinjiang Laboratory of Lake Environment and Resources in Arid Zone,Xinjiang Normal University,Urumqi 830054,China;College of Geography Science and Tourism,Xinjiang Normal University,Urumqi 830054,China;Urumqi Institute of Spatial Remote Sensing Applications,Urumqi 830054,China;Key Laboratory of Precision Forestry,Beijing Forestry University,Beijing 100083,China;College of Civil Engineering,Xinjiang Institute of Engineering,Urumqi 830023,China)

机构地区：[1]新疆干旱区湖泊环境与资源实验室,新疆乌鲁木齐830054 [2]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054 [3]乌鲁木齐空间遥感应用研究所,新疆乌鲁木齐830054 [4]北京林业大学精准林业北京市重点实验室,北京100083 [5]新疆工程学院土木工程学院,新疆乌鲁木齐830023

出　　处：《生态科学》2021年第3期174-183,共10页Ecological Science

基　　金：国家重点研发计划(2016YFC0501500);新疆维吾尔自治区高校科研计划(XJEDU2019Y031)。

摘　　要：以景观生态学理论和遥感技术为基础,基于1964年、1980年、2000年、2017年四期遥感影像数据充分利用GIS、RS、景观格局方法、空间地统计学等方法对影像进行解译,结合野外实地调查资料等其他信息源,分析研究区景观格局动态变化特征,结果发现:(1)1964—2017年塞威氏苹果斑块数、斑块密度、边界密度较大,且呈逐渐增加的趋势,其景观生态过程较活跃,2000年以前受到人类活动的干扰较强。塞威氏苹果的面积减少,斑块数增加,破碎化加大,斑块破碎化程度增加,受到人为和自然环境的干扰程度变多。(2)1964—2017年斑块数、斑块密度、边界密度等指数总体呈增加趋势,斑块形状趋于不规则,边界区域不规则性。(3)蔓延度指数、香农多样性指数、景观均匀度指数虽然总体变动不够明显,但存在部分波动变化,景观的异质性程度在增加,这可能是人为干扰使塞威氏苹果消亡面积比例降低所致。塞威氏苹果面积从1964年到2017年减少了3870.81 hm^(2),年均动态度为-1.20%。Based on landscape ecology theory and remote sensing technology,this paper used GIS,RS,landscape patterns method and spatial geostatistics to interpret images based on 1964,1980,2000,and 2017 remote sensing image data.Combined with other information sources such as field investigation data,the paper analyzed the dynamic changes of landscape pattern in the study area.The conclusions were as follows:(1)The number of plaques,plaque density,and boundary density of Malus sieversii(Ldb.)Roem from 1964 to 2017 were large and showed increasing trend,the landscape ecological process was more active,and the interference from human activities was stronger before 2000.The area of Malus sieversii(Ldb.)Roem was reduced,the number of plaques was increased,the fragmentation was increased,the degree of plaque fragmentation was increased,and the degree of interference from human and natural environment was increased.(2)The index of plaque,plaque density,and boundary density generally increased,the shape of plaque tends to be irregular,and the boundary area was irregular from 1964 to 2017.(3)Although the overall changes of the spread value,Shannon diversity index,and landscape evenness index were not obvious enough,there were some band changes,and the degree of heterogeneity of the landscape was increasing.This may be the proportion of the dead zone of the severe apples caused by human disturbance.From 1964 to 2017,the area decreased by 3870.81 hm^(2),with an average annual dynamic degree of-1.20%.

关 键 词：吉尔格朗河 塞威氏苹果 景观格局 动态变化 

分 类 号：P49[天文地球—大气科学及气象学]