| 茂兰自然保护区森林景观格局变化分析 |
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| 引用本文： | 陈阳,谢刚.茂兰自然保护区森林景观格局变化分析[J].现代农业科技,2020(9). |
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| 作者姓名： | 陈阳 谢刚 |
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| 作者单位： | 贵州科学院 贵州省山地资源研究所,贵州科学院 贵州省山地资源研究所 |
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| 基金项目： | 马桑相关产业开发及产业化示范基地建设(黔科合支撑[2016]2518号)；马桑菌扶贫生产示范基地建设(贵州省科技厅)；马桑菌成果转化中试项目(贵州科学院)；贵州科学院创新土地资源可持续利用创新人才团队(贵州科学院)；贵州土地整治高分遥感大数据服务平台建设及产业化应用(88-Y40G35-9001-18/20)；贵州土地整治高分遥感大数据服务平台建设(GXYF-2017-003)。 第一作者：陈阳(1988－),女,布依族,贵州紫云人,硕士研究生,研究实习员,从事林业、生态、土地资源研究。E-mail:736625107@qq.com。*通讯作者:谢刚(1987－),男,汉族,硕士研究生,高级工程师。主要从事林业、水土保持及土地资源研究。E-mail: 564290987@qq.com。 谢刚* 廖小锋 陈远 张蓝月 金桃 董艳艳 |
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| 摘 要： | 本文以2011年和2017的森林调查成果化数据为基础,依据不同优势树种组,采用景观格局指数法,从组成结构、斑块特征、景观异质性和空间分布4方面分析2011年和2017年茂兰自然保护区的森林景观格局及其变化。结果表明：林地面积增加了654.08 hm2；森林优势树种数量从15种增加至30种；景观面积(CA)最大的均为阔叶混交树种组,增加了1286.33hm2；斑块平均大小(MpS)最大的均为阔叶混交树种组,增加了471.80 hm2；面积加权的平均形状指数(AWMSI)和面积加权的平均分形指数(AWMPFD)最大值均为阔叶混交树种组；景观斑块边缘密度(ED)最大值均为阔叶混交树种组；阔叶混交树种组的平均最小距离(ENN)减少。从2011年2017年研究区的主要优势树种组阔叶混交树种组得以保护,这与人为干扰的减少有关。
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| 关 键 词： | 优势树种组 景观格局 茂兰自然保护区 动态变化 |
| 收稿时间： | 2020/1/17 0:00:00 |
| 修稿时间： | 2020/1/17 0:00:00 |
Analysis on the Change of Forest Landscape Pattern in Maolan Nature Reserve |
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| Abstract: | Based on the forestry survey results data of 2011 and 2017, this paper analyzes 2011 and 2017 from the aspects of compositional structure, plaque characteristics, landscape heterogeneity and spatial distribution according to different dominant tree species groups. Forest landscape pattern and changes in Maolan Nature Reserve. The results showed that the area of forest land increased by 654.08 hm2; the number of dominant tree species increased from 15 to 30; the largest area of landscape (CA) was broad-leaved mixed tree group, which increased by 1286.33hm2; the average plaque size (MpS) was the largest. The broad-leaved mixed tree species group increased by 471.80 hm2; the area-weighted average shape index (AWMSI) and the area-weighted average fractal index (AWMPFD) were the broad-leaved mixed tree species group; the landscape patch edge density (ED) The maximum value is the broad-leaved mixed tree species group; the average minimum distance (ENN) of the broad-leaved mixed tree species group is reduced. From the 2011 2017 study area, the main dominant tree species group broad-leaved mixed tree species were protected, which was related to the reduction of human disturbance. |
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| Keywords: | dominant tree species group landscape pattern Maolan Nature Reserve dynamic change |
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