Department of Agrotechnology, Faculty of Agriculture, Tadulako University, Palu, Central Sulawesi, Indonesia.
Department of Geology, Faculty of Engineering, Tadulako University, Palu, Central Sulawesi, Indonesia.
PLoS One. 2021 Jan 25;16(1):e0245591. doi: 10.1371/journal.pone.0245591. eCollection 2021.
This research aims to determine the attitudes of the farmers whose lands are affected by liquefaction in Jono Oge, Central Sulawesi Province, The Republic of Indonesia. The methods used here were integrated survey and experimental design. The survey approach was intended to figure out the attitudes of the farmers viewpoints: (1) to return to their activities on the agricultural lands affected by liquefaction; (2) to consume their own agricultural products; and (3) of their willingness to be relocated. The experimental design approach was used to figure out the effectiveness of organic material input combined with the SP-36 fertilizer. The obtained results were analyzed using the Likert Scale, diversity test, correlational test, and regression test. The results showed that the farmers persevered farming on the lands affected by liquefaction (Index = 88.82%) yet refused to consume their own agricultural products with the reason that corpses remained buried beneath their lands (Index = 27.82%); and they also refused to be relocated (Index = 28.80%). The continued production suitability of the affected land was also investigated. Terrain profile identification results in Jono Oge showed the disaster impact was dominantly landslide as it still showed a clear characteristic horizon between the topsoil and the sub soil. This contrasts to terrain at Petobo, Central Sulawesi Province, where the high mix of the topsoil with the sub soil of agricultural land affected by liquefaction, prevented demarcation of the horizon. The land treatment of organic material and SP-36 fertilizer showed that the combined dose (M) of 40-kg ha-1 with P 300-kg ha-1 had the highest effect by changing the field pH from 5.7 to 6.41, increased the availability of P and increased the corncob indicator plant weight. Based on these indications, the lands affected by the liquefaction in Jono Oge can still be used as agricultural lands through restoration, from both social and technical aspects.
本研究旨在确定印度尼西亚中苏拉威西省 Jono Oge 地区受液化影响的农民的态度。这里使用的方法是综合调查和实验设计。调查方法旨在了解农民的观点：（1）返回受液化影响的农业土地上开展活动；（2）消费自己的农产品；（3）是否愿意搬迁。实验设计方法用于确定有机物质输入与 SP-36 肥料相结合的效果。使用李克特量表、多样性测试、相关测试和回归测试对获得的结果进行分析。结果表明，农民坚持在受液化影响的土地上耕种（指数=88.82%），但拒绝食用自己的农产品，原因是尸体仍埋在他们的土地下（指数=27.82%）；他们也拒绝搬迁（指数=28.80%）。还调查了受影响土地的持续生产适宜性。Jono Oge 的地形剖面识别结果表明，灾害影响主要是滑坡，因为在表土和底土之间仍显示出明显的特征层。这与中苏拉威西省 Petobo 的地形形成对比，在那里，受液化影响的农业土地的表土与底土高度混合，阻止了特征层的划分。有机物质和 SP-36 肥料的土地处理表明，在 M 为 40-kg ha-1 与 P 为 300-kg ha-1 的组合剂量下，通过将田间 pH 值从 5.7 变为 6.41，效果最佳，增加了磷的有效性并增加了玉米芯指示植物的重量。基于这些迹象，从社会和技术方面来看，Jono Oge 受液化影响的土地仍可通过修复用作农业用地。
