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Analisis Indeks Kualitas Tanah dan Hubungannya dengan Prdoduktivitas Tanaman Buah Baskoro, Dwi Putro Tejo; Purwakusuma, Wahyu; Hidayat, Yayat; Malahayati, Sri; Wahyu Purwakusuma
Jurnal Ilmu Tanah dan Lingkungan Vol 27 No 2 (2025): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.27.2.63-69

Abstract

Soil quality is a determining factor for crop production. Therefore, proper assessment of soil quality—by integrating various soil characteristics into a Soil Quality Index (SQI)—is essential to reflect overall soil productivity. This study aimed to determine the SQI and its relationship to fruit crop productivity across seven locations with varying soil characteristics. The research was conducted at SMK PP Saree and SMKN Nisam in Aceh Province; SMKN Gelumbang and SMKN Banyuasin 3 in South Sumatra Province; SMKN Metro and SMKN Gedong Tataan in Lampung Province; and SMKN Kelapa in Bangka Belitung Province. The SQI analysis used eight key soil parameters considered critical for determining and managing crop growth and productivity, namely: effective soil depth, texture, bulk density, pH, organic matter content, cation exchange capacity (CEC), and base saturation. Each parameter was scored on a scale from 0 to 5. The results showed that the Soil Quality Index can effectively assess soil quality using these eight key parameters as a dataset. The studied soils were categorized as having medium to very good quality, with low organic carbon and low CEC identified as the most common limiting factors. Furthermore, the SQI demonstrated a strong positive correlation with fruit crop performance, with a correlation coefficient (r) of 0.832.
Water Balance Prediction by Simulating Land Use Planning and Water Retention Infrastructure in Upper Cisadane Sub-Watershed, West Java, Indonesia Hidayat, Yayat; Rachman, Latief Mahir; Wahjunie, Enni Dwi; Baskoro, Dwi Putro Tejo; Purwakusuma, Wahyu; Yusuf, Sri Malahayati; Araswati, Fulki Dwiyandi
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 14 No 2 (2024): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.14.2.415

Abstract

Currently, water resources management is still focused on on-site water resources infrastructure to achieve optimal water utilization, with almost never considered land management in which water resources are produced naturally. The research aim is to study the water balance in the Upper Cisadane Sub-Watershed, and to simulate a land use plan and development of water resource infrastructure to fulfill the need for water in the Upper Cisadane Sub-Watershed using the SWAT (Soil and Water Assessment Tool) model. Existing water availability was calculated using stream discharge data from River Flow Measurement Station Empang, whereas water demand has been analyzed for domestic, industries, agriculture, fisheries, and animal husbandry. Totally, water availability in the Upper Cisadane Sub-Watershed was ± 222.9 MCM (Million Cubic Meters) year-1, which was higher than the demand for water of as much as ± 209.8 MCM year-1 and resulted in a water surplus of ± 13.1 MCM year-1. However, water availability was not evenly distributed throughout the year, and there was always a water deficit in the dry season. To overcome drought during the dry season, five simulations of land use management and construction of water retention infrastructure were carried out using the SWAT model. The water deficit in the Upper Cisadane SubWatershed will be overcome by the consistent application of the spatial plan of West Java Province, reforestation of converted forest areas, applied agroforestry in agricultural land, and development of a reservoir with a storage capacity of 30 MCM.
ANALISIS DAYA DUKUNG SUMBER DAYA AIR UNTUK MENINGKATKAN KETERSEDIAAN AIR DI KABUPATEN BANDUNG, JAWA BARAT Parahita, Fayra; Baskoro, Dwi Putro Tejo; Darmawan, Darmawan
JURNAL SUMBER DAYA AIR Vol 18, No 2 (2022)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v18i2.721

Abstract

Cisangkuy watershed is the main source to meet the demand for raw water in Bandung city and Bandung Regency. The current hydrological condition has decreased as indicated by high fluctuations in river flow. The objectives of this study were to evaluate land use changes and water availability in the Cisangkuy watershed and to develop recommendations for land use to increase water availability in Bandung Regency based on the results of the hydrological simulation. There are some data used for analysis including land use map, spatial planning maps of Bandung regency, population numbers, industrial water demand, discharge, rice field area, freshwater fish pond area and the number of livestock. In summary, this research phase begins with an evaluation of land use changes , then calculates the water balance using the SWAT model. Changes in land use in the Cisangkuy watershed from 2007-2017 occurred from vegetated land cover to non-vegetation, which had an impact on the hydrological system and the availability of water in the Cisangkuy watershed. The potential for surface water supply in the Cisangkuy watershed with the existing scenario (in 2017) is 495.58 million m3 and the total user consumption water demand is 592.78 million m3, so there is water balance deficit about 97.20 million m3. The application of scenarios for improving land management by increasing the area of mixed dry land agriculturalwith agroforestry methods, reforestation on plantation forest land, applying infiltration wells in settlements and applying terraces to paddy fields provides a fairly good hydrological response to reduce the raw water deficit from 174,91 million  to 63.98 million m3.Keywords: land use change, water supply, water demands, water balance, Cisangkuy Watershed
Co-Authors A Akbar Aditia Sapto Utomo Affan Chahyahusna Agis Mulyani Alim, Nurmaranti Andrea Emma Pravitasari, Andrea Emma Andria Harfani Qalbi Ansori Ansori Araswati, Fulki Dwiyandi Asti Nurmilah Astrid Aryani Ndun Asyhari, Adibtya Baba Barus Balqis Nur Aisyah Basuki Sumawinata Benadikta Widjayatnika Boedi Tjahjono Budi Mulyanto Carolyn, Rully Dhora Darmawan Darmawan Darmawan Darmawan Desy Fatmawati Diyah Novita Kurnianti Dyah Retno Panuju Elianah Elvina Nora Lubis Enni Dwi Wahjunie Enny Dwi Wahyunie Ernan Rustiadi Evi Nursari Evi Nursari Fajar Nugraha Fatmawaty Fatmawaty, Fatmawaty Fatoni, Arif Fayra Parahita Gangga, Adi Gilang Munggaran Harisman Edi Hendi Hendra Bayu Henry D. Manurung Iman Sadesmesli Irvan Zidni Iskandar Iskandar Jepri, Kristoporus Jon Hendri JUBAEDAH JUBAEDAH, JUBAEDAH Khursatul Munibah Komarsa Gandasasmita Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Latief M Rahman Latief Mahir Rachman Leonard Kristofery LILIK BUDIPRASETYO M. Galih Permadi Mahardika, Rabbirl Yarham Mahartika Setianingsih Malahayati, Sri Marisa Dwi Putri Maswar Maswar Maudy Susanti Mohammad Sofyan Muhammad Yahya Fadhil Nabila Nurhaliza Navisha Maulita Dewi Neneng Laela Nurida Nur Etika Karyati Nuraida Nuraida Nurmaranti Alim Nursari, Evi Omo Rusdiana Oteng Haridjaja Parahita, Fayra Purwakusuma, Wahyu Putri, Savitri Khairunnisa Rahmah Dewi Yustika, Rahmah Dewi Rahman, Latief M Ramadhi, Muhammad Haris Achyar Ratna Yestina Ravelle, Adzan Pandu Reni Kusumo Tejo Selamet Kusdaryanto Seniarwan Seniarwan Siregar, Mariana Sella Suria Darma Tarigan Surya Darma Tarigan Syaiful Anwar Tiwi Astriani Toga Pandapotan Sinurat Vinni Lovita Widiatmaka Wistha Nowar Yayat Hidayat Yusuf, Sri Malahayati Zluyan Firdaus Afif