江户州麻疯树大规模种植的适宜性:运用层次分析法的初步评价

C. Emeribe, N. Uwadia, G. Umoru, R. O. Efegoma
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引用次数: 3

摘要

本研究的目的是利用GIS和层次分析法(AHP)对农业生态区麻疯树种植适宜性进行评价。从尼日利亚气象局(NIMET)、联邦航空部、奥肖迪、拉各斯和美国国际开发署(USAID)气候预测中心收集了为期3年(2010 - 2012)的降雨量和温度数据。江户州的降雨量在南部大部分地区为1400mm-1500mm,中部地区为1200mm-1350mm,北部地区为1000mm-1200mm。这些值都在麻风树种植的最佳范围内。江户州通常从4月/ 5月到9月/ 10月有6到7个月的水分充足期。在此期间,有足够的水分供应,以满足麻疯树种植在其营养和开花/结实阶段的消耗需求。江户州有5 / 6月和9 / 10月两个降雨高峰,保证了两次种植季节,即4月种植季节先于5 / 6月的第一个降雨高峰,7 / 8月种植季节先于最后一个降雨高峰(9 / 10月)。江户州的径流高峰出现在9月到10月之间。在这一时期,土壤是田间容量,不适合麻疯树种植的开始。对江户州边坡条件的分析表明,该州的大片土地可被归类为高度适宜的土地,北部有小块适度适宜的土地。江户州土壤条件对该州最南端的红树林土壤略微适宜,对该州西部Owena盆地的水态土壤适度适宜。多指标分析结果表明,江户州的适宜性可分为两大类,即;适度和高度。关键词:麻疯树,能源生产,气候因素,水分储存,土壤条件
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Suitability of large scale Jatropha curcus cultivation in Edo State: a preliminary assessment using the Analytical Hierarchy Process (AHP) method
The aim of this study is to assess the suitability of agro-ecological regions for Jatropha Curcas cultivation using GIS and Analytical Hierarchy Process (AHP) tools. Rainfall amount and temperature data were collected from the Nigerian Meteorological Agency (NIMET), Federal Ministry of Aviation, Oshodi, Lagos and Climate Prediction Centre of the United States Agency for International Development (USAID) for a period of 3 years (2010 - 2012). Rainfall amounts in Edo state ranges between 1400mm-1500mm in the south most part of the state and decreases to 1200mm-1350mm at the centre of the State and 1000mm-1200mm in the north. These values fall within the optimal range for Jatropha cultivation. There are six (6) to seven (7) months of moisture adequacy in Edo state usually from April/May – September/October. Within this period, there is adequate moisture supply to satisfy the consumptive needs of Jatropha cultivation during its vegetative and flowering/fruiting stages. There are two rainfall peaks in Edo state namely May/June and September/October which guarantees two-times planting seasons, namely April planting season prior to the first rainfall peak in May/June and July/August planting season before the last rainfall peak (September/October). Runoff peaks in Edo state occur between September and October. Within this period soils are at field capacity and not suitable for onset of Jatropha cultivation. Analysis of slope conditions in Edo state showed that vast expanse of land in the state may be categorized as highly suitable with small patches of moderately suitable locations in the north. Soil condition in Edo state showed marginally suitable for soils in the mangrove region, southernmost part of the state and moderately suitable for hydromorphic soils of the Owena Basin west of the State. Finally, the result of multi-criteria analysis showed that Edo state can be grouped into two main classes of suitability namely; moderately and highly. Keywords: Jatropha Curcas , Energy production, Climatic factors, moisture storage, Soil condition
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