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All Journal Indonesian Journal of Geography AGRIPITA: Jurnal Agribisnis dan Pembangunan Pertanian Journal of Tropical Soils
Rika Harini
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences

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KAJIAN SPASIAL DAMPAK PERUBAHAN IKLIM TERHADAP PRODUKSI PERTANIAN Rika Harini; Bowo Susilo
Agripita: Jurnal Agribisnis dan Pembangunan Pertanian Vol 1 No 1 (2017): JURNAL AGRIPITA
Publisher : Agribusiness Study Program Universitas Sriwijaya in Collaboration with Indonesian Society of Agricultural Economics (PERHEPI/ISAE)

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Abstract

One of the pillars studies in sustainable development at the global level (SDGs) is a development environment. This pillar examines food security, sustainable consumption patterns and climate change. Climate change will affect agricultural activities. Climate change often causes experienced farmers crop failure because excessive rain or long summer season. The purpose of this study was to assess the effect of climate change on agricultural production. This study uses secondary data, that is rainfall data and agricultural production data as a baseline. This study examined descriptive statistics using maps, tables and graphs. The results showed a trend towards a decrease in agricultural production in all districts/cities. Based on regression analysis of the decline in agricultural production, namely cereals (rice, corn, cassava and sweet potato) is significantly influenced by changes in rainfall in all regions of the Province North Kalimantan except Tana Tindung Distict.
The dominant factors affecting agricultural land use (rice field) change in Yogyakarta Special Province Hadi Sabari Yunus; Rika Harini
Indonesian Journal of Geography Vol 37, No 1 (2005): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2217

Abstract

The research was conducted in Yogyakarta Special Province. The main objective of this research is to find out the main factors influencing the change in agricultural land use especially rice field. The data used in this research is time series from 1980 to 2000. They were obtainedfrom several institutions such as: Central Bureau of Statistics (BPS), National Agency of Land Affairs (BPN) and Department ofAgriculture (Dinas Pertanian). Descriptive analysis and statistical test were performed against those data to find out the influence of geographic factors i.e. the population growth, the road development and the extension of built up area on the change in agricultural land use especially rice field. Distributed lag model is used to analyze the effect of road's length on agricultural land use change. The level and magnitude of relationship between areas of agricultural land use change and built up area, number of people and road length are calculated using linear regression.The research shows that the period of 1980 - 2000 in Yogyakarta Special Province has indicated very significantly the increase in population, the development of road and the extension of built up area. For the time being, agricultural land mainly in Sleman Regency, Bantul Regency and Yogyakarta Municipality has decreased. Sleman regency performed the largest decrease of rice field and followed after then by Bantul regency and Yogyakarta Municipality. The regency of Kulon Progo and Gunung Kidul have experienced reverse phenomenon i.e. the increase of rice field during this period. Individually or simultaneously, three variables used in this research (number of people, road's length and built up area) have significantly influenced the agricultural land use.
AGRICULTURAL LAND CONVERSION: DETERMINANTS AND IMPACT FOR FOOD SUFFICIENCY IN SLEMAN REGENCY Rika Harini; Hadi Sabari Yunus; Kasto .; Slamet Hartono
Indonesian Journal of Geography Vol 44, No 2 (2012): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2394

Abstract

The research was conducted in Sleman Regency with 3 study area based on the extent ofagricultural land conversion. The purpose of this research is to examine the determinants ofagricultural conversion internally and externally, as well as the impact on the availability offood, especially rice. The research was conducted by survey method and statistical analysisregression Ordinary Least Square. The resultsof this research showed that the internalfactors which significantly affect land conversion is the price of land and land location in allareas of study. External factors have significantly positive are variable population, landconversion rules and land location, while the variable GDP in the agricultural sectornegatively. Availability of rice in Sleman Regenct zone 1 indicates the region from 1983 to2025 for the population minus the rice sufficiency. In zone 2 region between 1983 and 2005but it is still a surplus between 2006 and 2025 minus. In the area of zone 3 is projectedthrough 2025 the availability of rice is sufficient
Heavy Metal Contamination on Shallot Fields In Bantul Regency, Yogyakarta Cicik Oktasari Handayani; Edi Martono; Rika Harini
JOURNAL OF TROPICAL SOILS Vol 27, No 1: January 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i1.9-16

Abstract

Shallot cultivation usually uses very intensive agrochemicals that could affect the soil’s chemical properties and contaminate agricultural land by increasing the content of heavy metals. The use of agrochemicals is closely related to the behavior of farmers. The research aimed to study the heavy metal contamination and soil chemical properties in shallot fields and analyze the relationship between farmer behavior in using fertilizers and pesticides with a heavy metal concentration in agricultural land. The research was conducted in Srigading Village, Batul, Yogyakarta. Soil samples as many as 30 samples were taken from the shallot fields before harvest using a purposive sampling method and were analyzed for heavy metal concentrations of Pb, Cd, Ni, Co, Cr, and other soil chemical properties. Interviews were also conducted with landowners or farmers at the soil sampling location. Analysis of interview data was carried out by scoring each qualitative data into quantitative data through a questionnaire and testing the correlation between farmer behavior and heavy metal content. The results found that the shallot fields in the Srigading Village, Bantul contain heavy metals Pb, Cd, Cr, Co, and Ni with concentrations below soil quality standard. The soil organic carbon content in shallot fields has a low value. Farmer behavior has a weak negative correlation with heavy metal content in the soil.
Co-Authors Bowo Susilo Cicik Oktasari Handayani Edi Martono Hadi Sabari Yunus Kasto . Slamet Hartono