PENGARUHLIMBAH MASYARAKAT TERHADAP KUALITAS FISIKA, KIMIA, DAN BIOLOGI PERAIRANSUNGAI JUWANA, KABUPATEN PATI

WIDYASTIKA ANGGI R, Prof. Dr. Erny Poedjirahajoe, M.P.

2017 | Skripsi | S1 KEHUTANAN

Peningkatan jumlah penduduk Kabupaten Pati menyebabkan aktivitas dan limbah masyarakat sekitar Sungai Juwana meningkat.Limbah yang berasal dari peternakan, pertanian, pemukiman, dan industri dapat mengubah kondisi kualitas perairan.Oleh karena itu perlu dilakukan penelitian mengenai pengaruh limbah masyarakatterhadap kualitas fisika, kimia, dan biologiperairan Sungai Juwana.Penelitian ini bertujuan untuk mengetahui perbedaan kualitas fisika, kimia, dan biologi di bagian hulu, tengah, dan hilir sungai serta pengaruh limbah masyarakat terhadap kualitas perairan Sungai Juwana. Penelitian dilakukan di Sub DAS Gungwedi, DAS Juwana, Kabupaten Pati pada bulan September-Oktober 2016. Metode pengambilan data adalahsystematic sampling.Data penelitian meliputi kualitas fisika (suhu, kecepatan arus, kejernihan), kimia (pH dan oksigen terlarut), dan biologi (kepadatan dan keanekaragaman plankton) serta frekuensi limbah masyarakat (peternakan, pertanian, pemukiman, dan industri) pada daerah hulu, tengah, dan hilir Sungai Juwana.Analisis data menggunakanKruskall-Wallisdan Regresi dengan bantuan SPSS. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang signifikan antara kualitas fisika, kimia dan biologi padadaerah hulu, tengah, dan hilir Sungai Juwana dengan nilai signifikasi kurang dari 0,05.Hal ini disebabkan oleh berbagai faktor lingkungan dan masyarakat.Limbah masyarakat sekitar Sungai Juwana berpengaruh secara signifikan terhadap kualitas fisika, kimia, dan biologi perairan Sungai Juwana. Semakin tinggi limbah masyarakat, maka dapat menurunkan kualitas perairan Sungai Juwana.

Increasing population of Pati regency causes community activities and waste around the Juwana river increased. Waste from livestock, agriculture, residential, and industrial can change waters quality conditions. Therefore it is necessary to do research on the influence of waste of community on the quality of physical, chemical, and biological Juwana river waters. This research aims to determine differences in physical, chemical, and biological in the upstream, midstream, and downstreamriver and influence of waste of community on the quality of the Juwana river. The research was conductedin Juwana river, Pati Regency in September-Oktober 2016. The method of data collection was systematic sampling.The research data covered physical quality (temperature, current speed, clarity), chemical quality (pH and dissolved oxygen), and biological quality (density and diversity of plankton) and the frequency of waste of community(livestock, agriculture, residential, and industrial) in the upstream, midstream, and downstream Juwana River. Analysis of the data used Kruskall-Wallis and Regression with SPSS. The results showed there are significant differences between the quality of the physical, chemical quality, and biological quality in areas upstream, midstream, and downstream Juwana River with significant value less than 0,05. It was caused by various environmental factors and community. Community activities in Juwana river significantly influence the physical, chemical, and biological Juwana river waters.Increased waste of community can degraded the quality of the Juwana river waters.

Kata Kunci : Keywords :Influence, Waste of Community, Waters Quality, Juwana River