PENGELOLAAN DAN PENGENDALIAN AIR HUJAN DALAM PERUMAHAN SEBAGAI UPAYA KONSERVASI AIR TANAH

Daru Pratomo

doi:10.22219/jmts.v17i1.7515

PENGELOLAAN DAN PENGENDALIAN AIR HUJAN DALAM PERUMAHAN SEBAGAI UPAYA KONSERVASI AIR TANAH

Jurnal Media Teknik Sipil ◽

10.22219/jmts.v17i1.7515 ◽

2019 ◽

Vol 17 (1) ◽

Author(s):

Daru Pratomo

Keyword(s):

Global Warming ◽

Purposive Sampling ◽

Recharge Well

Limpahan air hujan yang tidak terkendali membuat masalah banjir. Usaha dalam menerapkan teknik drainase menjadi pilihan dalam rangka menghadapi global warming yaitu sistem drainase air hujan berwawasan lingkungan. Sistem ini menurut [Sunjoto, 2007] terdiri dari tiga kelompok yaitu Sumur Peresapan Air Hujan (Recharge Well), Parit Resapan Air Hujan (Recharge Trench) dan Taman Resapan Air (Recharge Yard) dan yang terakhir ini juga disebut Taman Bertanggul [Sujono, 2005].Metode yang digunakan dalam penelitian ini dengan menggunakan metode analisis kuantitatif. Pengambilan sampel dilakukan metode yaitu metode purposive sampling untuk pengukuran permeabilitas yang mempertimbangkan pengambilan sampel pada lahan yang belum diberi perkerasan seperti lahan kosong maupun pekarangan rumah sedangkan untuk pengukuran kedalaman muka air tanah dengan mengukur kedalaman permukaan air sumur eksisting dan dengan cara menggali rencana sumur resapan yang akan dipakai dalam komplek perumahan. Berdasarkan pendekatan perhitungan metode SNI 03-2453-2002 kebutuhan sumur resapan untuk menampung limpasan air hujan akibat dari tertutupnya lahan terbuka oleh rumah dan carport sebanyak 20 unit. Sedangkan sebagai pengganti lahan yang tertutup oleh paving block, dibuat 8 unit. Dengan dimensi sumur resapan diameter 1 m, kedalaman 1,5 m atau 3 buah buis beton untuk setiap sumur resapan.

Download Full-text

The Influence of Science Comic Based Character Education on Understanding the Concept and Students’ Environmental Caring Attitude on Global Warming Material

Journal of Biology Education ◽

10.15294/jbe.v7i2.24257 ◽

2018 ◽

Vol 7 (2) ◽

pp. 167-173 ◽

Cited By ~ 1

Author(s):

Eka Lailatul Munawwaroh ◽

Bambang Priyono ◽

Margareta Rahayu Ningsih

Keyword(s):

Global Warming ◽

Experimental Design ◽

Character Education ◽

Science Learning ◽

Control Design ◽

Sampling Technique ◽

Purposive Sampling ◽

Environmental Care ◽

Teachers And Students ◽

Research Population

The objective of the study was to determine the effect of the science comic based character education on understanding the concept and students’ environmental caring attitude to the material of global warming. Type research true experimental design with posttest-only control design. The research population was the students of class VII of SMP Negeri 1 Mungkid. The sample was taken by purposive sampling technique consist of class VII H a control class and class VII G an experiment class. The result of the research showed that the study of the students of Class VII of SMP Negeri 1 Mungkid on global warming material reaches completeness equal to 71.42%. The attitude of environmental care of students of Class VII of SMP Negeri 1 Mungkid after using science comic media on global warming material is in the category of very care and care. The implementation of science learning of global warming material of students of Class VII of SMP Negeri 1 Mungkid is done well by 95%. This is supported by the responses of teachers and students who respond well to learning using the science-based science comic media character applied to global warming materials. Based on the results of the study concluded that learning using science comic media based on character education applied to global warming material positively influence the understanding of concept and attitude of environment care of students SMP Negeri 1 Mungkid.

Download Full-text

Pengaruh Media Virtual Reality Pada Materi Pemanasan Global Terhadap Hasil Belajar Peserta Didik Kelas VII SMP Negeri 3 Palangka Raya

GAMAPROIONUKLEUS ◽

10.37304/jpmipa.v1i1.2076 ◽

2020 ◽

Vol 1 (1) ◽

pp. 30-36

Author(s):

Miftahul Qori’ah ◽

Agus Haryono ◽

Nuriman Wijaya

Keyword(s):

Virtual Reality ◽

Global Warming ◽

Student Learning ◽

Learning Outcomes ◽

Student Learning Outcomes ◽

Choice Test ◽

Purposive Sampling ◽

Whitney Test ◽

Mann Whitney Test ◽

Quasi Experiment

Materi pemanasan global memiliki karakteristik yang sangat erat hubungannya dengan kondisi di lingkungan sekitar, memerlukan pengamatan yang lama dan proses-prosesnya tidak dapat dilihat secara langsung. Mempelajari materi pemanasan global meggunakan media virtual reality akan mempermudah proses pembelajaran karena dengan virtual reality akan menampilkan gambaran proses terjadinya pemanasan global dalam bentuk video animasi yang telah divisualkan. Penelitian ini dilakukan untuk mengetahui pengaruh media virtual reality terhadap hasil belajar peserta didik. Penelitian ini merupakan penelitian eksperimen dengan rancangan eksperimen semu (quasi experiment). Sampel diambil dengan teknik purposive sampling pada kelas VII-8 dan VII-9 SMP Negeri 3 Palangka Raya yang masing-masing kelas berjumlah 32 orang peserta didik. Instrumen yang digunakan dalam penelitian ini yaitu soal tes pilihan ganda yang berjumlah 25 soal dan angket respon peserta didik terhadap media virtual reality. Data hasil belajar diambil dengan menggunakan soal tes yang diberikan pada saat awal pembelajaran (pretest) dan akhir pembelajaran (posttest). Data hasil belajar peserta didik kemudian dianalisis secara kuantitatif menggunakan uji Mann-Whitney. Hasil penelitian menunjukkan bahwa perhitungan uji Mann-Whitney memperoleh hasil nilai Asymp. Sig. (2-tailed) (0,040) < ? (0,05), maka Ho ditolak dan Ha diterima, dengan kata lain terdapat pengaruh media virtual reality terhadap hasil belajar peserta didik pada materi pemanasan global kelas VII SMP Negeri 3 Palangka Raya. Rata-rata hasil belajar peserta didik pada ranah kognitif C3, C4 dan C5 kelas eksperimen yang diajarkan menggunakan media virtual reality lebih unggul dibandingkan kelas kontrol. Hasil ini didukung juga oleh angket respon peserta didik yang menunjukkan media virtual reality berada pada kategori sangat baik. Oleh karena itu, media virtual reality pada materi pemanasan global dipandang berhasil dan berpengaruh nyata hasil belajar peserta didik. The material of global warming has characteristics that are very closely related to conditions in the surrounding environment, requiring long observations and processes that cannot be seen directly. Studying the material of global warming using virtual reality media will simplify the learning process because virtual reality will display a picture of the process of global warming in the form of visual videos that have been visualized. This research was conducted to determine the effect of virtual reality media on student learning outcomes. This research is an experimental research with a quasi experiment. Samples were taken by purposive sampling technique in class VII-8 and VII-9 SMPN 3Palangka Raya, each of which consisted of 32 students. The instruments used in this study were multiple choice test questions totaling 25 questions and student responses to virtual reality media. Data on learning outcomes are taken using the test questions given at the beginning of learning (pretest) and the end of learning (posttest). Data on student learning outcomes were then analyzed quantitatively using the Mann-Whitney test. he results showed that the Mann-Whitney test calculation obtained the Asymp. Sig. (2-tailed) (0.040) <? (0.05), then Ho is rejected and Ha is accepted, in other words there is a significant effect of virtual reality media on the learning outcomes of students in class VII of the global warming material at SMP Negeri 3 Palangka Raya. The average learning outcomes of students in the cognitive realm of C3, C4 and C5 in the experimental class taught using virtual reality media were superior to the control class. This result is also supported by the questionnaire responses of students who show that virtual reality media is in a very good category. Therefore, virtual reality media on the subject of global warming is seen as successful and significantly influences student learning outcomes.

Download Full-text

Modelling ecosystem adaptation and dangerous rates of global warming

Emerging Topics in Life Sciences ◽

10.1042/etls20180113 ◽

2019 ◽

Vol 3 (2) ◽

pp. 221-231 ◽

Cited By ~ 4

Author(s):

Rebecca Millington ◽

Peter M. Cox ◽

Jonathan R. Moore ◽

Gabriel Yvon-Durocher

Keyword(s):

Climate Change ◽

Global Warming ◽

Diffusion Rate ◽

Individual Species ◽

Genetic Evolution ◽

Rates Of Change ◽

Rapid Climate Change ◽

Warming Climate ◽

Intraspecies Competition ◽

High Trait

Abstract We are in a period of relatively rapid climate change. This poses challenges for individual species and threatens the ecosystem services that humanity relies upon. Temperature is a key stressor. In a warming climate, individual organisms may be able to shift their thermal optima through phenotypic plasticity. However, such plasticity is unlikely to be sufficient over the coming centuries. Resilience to warming will also depend on how fast the distribution of traits that define a species can adapt through other methods, in particular through redistribution of the abundance of variants within the population and through genetic evolution. In this paper, we use a simple theoretical ‘trait diffusion’ model to explore how the resilience of a given species to climate change depends on the initial trait diversity (biodiversity), the trait diffusion rate (mutation rate), and the lifetime of the organism. We estimate theoretical dangerous rates of continuous global warming that would exceed the ability of a species to adapt through trait diffusion, and therefore lead to a collapse in the overall productivity of the species. As the rate of adaptation through intraspecies competition and genetic evolution decreases with species lifetime, we find critical rates of change that also depend fundamentally on lifetime. Dangerous rates of warming vary from 1°C per lifetime (at low trait diffusion rate) to 8°C per lifetime (at high trait diffusion rate). We conclude that rapid climate change is liable to favour short-lived organisms (e.g. microbes) rather than longer-lived organisms (e.g. trees).

Download Full-text