孟加拉河流域北部承载力区红树林群落结构的多元分析

S. Syahrial, Muhammad Hatta, Chandrika eka Larasati, Arina Ruzanna, Al Muzafri, La Ode Abdul Fajar Hasidu, Windi Syahrian, Zan Zibar
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引用次数: 0

摘要

2018年7月,在廖内省Bengkalis Regency的North Rupat区进行了一项关于红树林群落结构的多变量分析研究,目的是估计或评估红树林群落结构状况。使用10 x 10m的样条和样地,在六次观测中收集了红树林植被状况的数据。使用Shannon Weaver和Simpson指数分析了红树林多样性,并使用聚类、非度量MDS、ANOSIM和SIMPER分析了红树林群落结构的变化。该研究在廖内省Bengkalis Regency的North Rupat区发现了12种红树林,根据多样性分析(H')将其分为6科,Shannon Weaver指数范围为01.34至01.72,Simpson指数范围为02.43至02.81。此外,使用多元聚类和非度量MDS的红树林多样性分析结果被分为四组,虽然基于红树林密度值的聚类分析具有60%的相似性,但红树林密度显著性的变化存在显著差异(R=0.689,p=0.000),-组成红树林的物种在不同的站点之间也有所不同。此外,廖内省Bengkalis Regency North Rupat区的红树林植被树干直径主要为树干直径01.00-20.00 cm的红树林,2号和6号站生长发育的红树林植被相对较其他站年轻。3号和4号站被认为在增长和发展方面更加成熟。人类在各行各业的活动增加导致了红树林的减少,因此于2018年7月对里约省北部容量维度的红树林群落结构进行了多元分析,目的是评估或评估红树林群落结构的状况。通过制作10 x 10m的样条和样条,在六个观测站收集红树林植被状况数据,然后使用Shannon Weaver和Simpson指数分析红树林多样性,同时基于聚类、非度量MDS、ANOSIM和SIMPER分析红树林群落结构变化。研究发现,河流省流域北部容量维度的12种红树林分属6科,多样性分析(H')Shannon Weaver指数在01.34至01.72之间,Simpson指数在02.43至02.81之间,然后将多元聚类和非度量MDS对红树林多样性的分析结果分为四组,而基于红树林密度值的聚类分析具有±60%的相似性,红树林密度的显著变化是不同的真实值(R=0.689,p=0.000),其观测站之间的红树林物种组成也不同。此外,廖内省盆地北部容量维度中红树林树干植被的直径主要由直径01.00–20.00 cm的红树林树干菌株决定,其中在2号体育场或6号体育场生长的红树林植被比其他车站年轻,而在3号或4号站生长的红树林植被属于老年人。
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Analisis Multivariat pada Struktur Komunitas Mangrove di Kecamatan Rupat Utara Kabupaten Bengkalis Provinsi Riau
Increasing human activity in all aspects of life has contributed to the decline of mangrove forests, a multivariate analysis study on the structure of the mangrove community was conducted in July 2018 in North Rupat District, Bengkalis Regency, Riau Province with the objective of estimating or assessing the condition of the mangrove community structure. Data on the condition of mangrove vegetation was collected in six observations using line transects and plots measuring 10 x 10 m. Mangrove diversity was analyzed using the Shannon-Weaver and Simpson indexes, and variations in mangrove community the structure was analyzed using clusters, non-metric MDS, ANOSIM, and SIMPER. The study discovered 12 mangrove species in North Rupat District, Bengkalis Regency, Riau Province, which was classified into 6 families based on diversity analysis (H') Shannon Weaver indexes ranging from 01.34 to 01.72 and Simpson indexes ranging from 02.43 to 02.81. Furthermore, the results of the mangrove diversity analysis using multivariate clusters and non-metric MDS were divided into four groups, and while the cluster analysis based on the value of the mangrove density had a similarity of 60%, the variation in the significance of mangrove density was significantly different (R = 0.689, p = 0.000), and the mangrove species that compose varies between stations. Moreover, the trunk diameter of mangrove vegetation in North Rupat District, Bengkalis Regency, Riau Province is dominated by mangrove stands with a trunk diameter of 01.00 - 20.00 cm, with the mangrove vegetation that grows and develops at Stations 2 and 6 being relatively younger than the other stations. Stations 3 and 4 are considered more mature in terms of growth and development.  Peningkatan aktivitas manusia di segala setor kehidupan telah mendorong penurunan hutan mangrove, sehingga kajian analisis multivariat pada struktur komunitas mangrove di Kecamatan Rupat Utara Kabupaten Bengkalis Provinsi Riau telah dilakukan pada bulan Juli 2018 dengan tujuan untuk mengestimasi atau menilai kondisi struktur komunitas mangrovenya. Data kondisi vegetasi mangrove dikumpulkan pada enam stasiun pengamatan dengan membuat transek garis dan plot yang berukuran 10 x 10 m, kemudian keanekaragaman mangrovenya dianalisis menggunakan indeks Shannon-Weaver dan Simpson, sedangkan variasi struktur komunitas mangrovenya dianalisis berdasarkan cluster, non-metric MDS, ANOSIM dan SIMPER. Hasil kajian menemukan 12 spesies mangrove di Kecamatan Rupat Utara Kabupaten Bengkalis Provinsi Riau yang tergolong ke dalam 6 famili dengan analisis keanekaragaman (H’) indeks Shannon Weaver berkisar antara 01.34 – 01.72 dan indeks Simpson berkisar antara 02.43–02.81, kemudian hasil analisis keanekaragaman mangrovenya dengan multivariat cluster dan non-metric MDS terbagi atas empat kelompok, sedangkan analisis cluster berdasarkan nilai kerapatan mangrovenya memiliki kemiripan ± 60%, variasi signifikansi kerapatan mangrovenya berbeda nyata (R = 0.689, p = 0.000) serta spesies mangrove penyusun antar stasiun pengamatannya bervariasi. Selain itu, diameter batang vegetasi mangrove di Kecamatan Rupat Utara Kabupaten Bengkalis Provinsi Riau didominasi oleh tegakan mangrove berdiameter batang 01.00 – 20.00 cm, dimana vegetasi mangrove yang tumbuh dan berkembang di Stasiun 2 maupun 6 tergolong lebih muda dibandingkan stasiun yang lainnya, sedangkan vegetasi mangrove yang tumbuh dan berkembang di Stasiun 3 maupun 4 tergolong lebih matang.
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