三顺省土地利用/土地覆被与土壤有机质关系的确定

A. İmamoglu, Suat Karadaş
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引用次数: 0

摘要

土壤具有生态、生物、经济、文化等多种功能,是最重要的自然资源之一。因此,应根据农用地的特点,合理评价和利用农用地;此外,它应该完全用于农业目的。影响土壤肥力的最重要因素之一是有机质含量。因此,本研究评估了位于土耳其黑海中部省(总面积:9813平方公里)土耳其黑海地区Samsun省的OM分布。在三孙省共收集了971个土壤样本,并使用改进版的Walkley-Black方法评估了OM的数量。利用适当的地质统计学方法和分布图对OM的分布进行了评价。土地覆盖/土地利用与有机质数量之间的关系通过使用地理信息系统程序ArcGIS 10.2应用合并过程确定。结果表明:草地土壤有机质含量最高,其次为非灌溉果区、天然草甸、疏植区和连灌果园;另外,三善道的土壤中,有机质含量为2 ~ 3%的土地占85.8%,有机质含量为3 ~ 4%的土地占13.7%,有机质含量较低的土地占0.5%。对现有土地用途与有机质数量之间关系的研究表明,阔叶林和天然植被覆盖地区以及农业和耕地地区的土壤具有充足的自然植物区系和较低的有机质数量;而农区、非灌溉区、非灌溉区混合农业区和混交林覆盖区土壤有机质含量中等。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Determination of the eelationship between land use / land cover and soil organic matter in Samsun province
Soil is one of the most important natural resources owing to its ecological, biological, economic and cultural functions. Therefore, agricultural land should be appropriately evaluated and used in accordance with its characteristics; moreover, it should be solely used for agricultural purposes. One of the most important factors affecting soil fertility is the amount of organic matter (OM). Therefore, the present study evaluated the distribution of OM in Samsun Province at Turkey’s Black Sea Region located in the Central Black Sea Department (total area: 9813 km 2 ), Turkey. A total of 971 soil samples were collected from the Samsun Province, and the amount of OM was assessed using a modified version of the Walkley–Black method. The distribution of OM was evaluated using an appropriate geostatistical method and a distribution map. The relationship between land cover/land use and the amount of OM was determined by applying a merging process using the geographic information systems program ArcGIS 10.2. The results revealed that rangelands had the highest amount of OM, followed by nonirrigated fruit regions, natural meadows, sparse plant regions, and continuously irrigated orchards. Furthermore, 85.8% of the land in Samsun Province comprised soils with a 2-3 percent of OM, 13.7% comprised soils with a 3-4 percent OM, and 0.5% comprised soils with a low amount of OM. Examination of the relationship between the existing land uses and the amount of OM showed that the soils in regions covered with broad-leaved forests and natural vegetation as well as agricultural and arable regions had sufficient amounts of natural flora and a low amount of OM; however, the soils in agricultural regions, nonirrigated arable regions, and nonirrigated mixed agricultural regions as well as regions covered with mixed forests had a medium amount of OM.
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