Dyah Nursita Utami
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Kajian Dampak Perubahan Iklim Terhadap Degradasi Tanah Dyah Nursita Utami
Jurnal ALAMI : Jurnal Teknologi Reduksi Risiko Bencana Vol. 3 No. 2 (2019): Jurnal Alami
Publisher : Agency for the Assessment and Application of Technology / Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/alami.v3i2.3744

Abstract

ABSTRACTNatural disasters that occur in Indonesia are disasters caused by climate change, such as landslides, floods, flash floods, droughts, forest and land fires, crop failures and other natural disaster. Climate change such as rainfall trends, temperature trends, normal changes in rainfall, extreme climate changes greatly affect the balance of the environmental ecosystem which then becomes one of the triggers of natural disasters that occur. For example changes in high rainfall will affect the physical, biological and chemical nature of the soil which makes soil prone to soil erosion and even landslides can occur. Extreme changes in air temperature also affect soil degradation resulting in soil compaction, fractures, acidification and reduced soil organic matter and biodiversity of soil biota, so that plants lack nutrients and eventually crop failure occurs.Because of that basis, the study of the impacts of climate change on soil properties needs to be done in the hope that they can take the right steps in dealing with climate change, so that the environment has resilience in dealing with climate change Keywords: climate change, soil degradation, environmental resilience ABSTRAKBencana alam yang terjadi di Indonesia merupakan bencana yang banyak disebabkan oleh adanya perubahan iklim, seperti tanah longsor, banjir, banjir bandang, kekeringan, kebakaran hutan dan lahan, gagal panen serta bencana alam lain sebagainya. Perubahan iklim seperti tren curah hujan, tren suhu, perubahan normal curah hujan, ekstrem perubahan iklim sangat mempengaruhi keseimbangan ekosistem lingkungan yang kemudian menjadi salah satu trigger bencana alam itu terjadi. Sebagai contoh perubahan curah hujan yang tinggi akan mempergaruhi sifat tanah secara fisik, biologi dan kimiawi yang menjadikan tanah rawan terkena erosi tanah bahkan dapat terjadi tanah longsor. Perubahan suhu udara yang ekstrim juga berpengaruh terhadap degradasi tanah sehingga terjadi pemadatan tanah, rekahan, pengasaman serta berkurangnya bahan organik tanah serta biodiversitas biota tanah, sehingga tanaman kekurangan unsur hara dan akhirnya terjadi gagal panen. Karena dasar itulah kajian dampak perubahan iklim terhadap sifat-sifat tanah perlu dilakukan dengan harapan dapat mengambil langkah yang tepat dalam menghadapi perubahan iklim, sehingga lingkungan mempunyai ketangguhan (resilience) dalam menghadapi perubahan iklim. Kata kunci: perubahan iklim, degradasi tanah, ketangguhan lingkungan.
Kajian Kesuburan Lahan untuk Evaluasi Lahan Kaitannya untuk Mitigasi Bencana Kekeringan di Kabupaten Nganjuk Dyah Nursita Utami; Hasmana Soewandita
Jurnal ALAMI : Jurnal Teknologi Reduksi Risiko Bencana Vol. 4 No. 2 (2020): Jurnal Alami
Publisher : Agency for the Assessment and Application of Technology / Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/alami.v4i2.4517

Abstract

Nganjuk Regency is a potential agricultural granary. Results fields and plantations is one supporting the needs of farms and plantations in East Java in particular and Java in general. Agricultural production in Nganjuk Regency often experiences fluctuating phases, one of which is due to drought. Assessment of soil fertility for land suitability evaluation into one of the efforts in mitigating drought in Nganjuk. This soil fertility assessment is carried out by taking soil samples based on the unit of land maps (SPL). Unit of land maps obtained from the overlay of base maps such as soil type maps, land use maps, topographic maps and administrative maps Nganjuk. The results of the laboratory analysis of soil samples subsequently analyzed and interpreted to obtain: 1) soil fertility status in Nganjuk; 2) determine suitability class; 3) determine the characteristics of an influential land for the development of food crops and plantations; 4) obtain recommendations or technologies efforts in tackling drought in Nganjuk.