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首页> 外文期刊>Research Journal of Soil Biology >Effect of Land Use Change on Carbon Sequestration: A Case Study in Shahmirzad Walnut Orchad, Semnan, Iran
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Effect of Land Use Change on Carbon Sequestration: A Case Study in Shahmirzad Walnut Orchad, Semnan, Iran

机译：土地利用变化对固碳的影响：以伊朗塞姆南Shahmirzad核桃园为例

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Climate change, which has negative effects on wet and dry ecosystem is one of the most important challenges in sustainable development. The increase of atmospheric Carbon dioxide is the main cause of this phenomenon. The mass of 20 year old walnut trees and adjacent rangeland (control) with overcoming coverage Astragalus parrowianus and Acantolimon erinaceum in the city of Shahmirzad of the Semnan province was chosen to study the effects of land use change on carbon sequestration. The sequestered atmospheric carbon dioxide was measured at biomass (aerial and underground), compost and soil (0-15 and 15-30 cm layers). The results show that in working unit one there were 116.54 t ha-1 of sequestered carbon in the orchard and 74.58 t ha-1 in the rangeland. In working unit two there were 130.15 t ha-1 in the orchard and 71.305 t ha-1 in the rangeland. This caused carbon sequestration to rise by 41.69 t ha-1 in working unit one and 58.845 t ha-1 in working unit two. Walnut tree aerial biomass had the most Carbon sequestration . The most important factors affecting the soil?s organic carbon were organic material content, Ec and percentage of silt and sand. There were meaningful and positive relations between the soil?s organic carbon and organic material in soil. The results show that the land use change had a significant effect in raising the total carbon sequestration in the region.
机译：气候变化对干湿生态系统有负面影响，是可持续发展中最重要的挑战之一。大气中二氧化碳的增加是此现象的主要原因。选择了Semnan省Shahmirzad市中克服覆盖的黄芪和Acantolimon erinaceum的20年生核桃树和邻近牧场（对照）的质量来研究土地利用变化对固碳的影响。在生物质（空中和地下），堆肥和土壤（0-15和15-30 cm层）处测量了隔离的大气中二氧化碳。结果表明，在第一个工作单元中，果园的固碳量为116.54 t ha -1 ，牧场的果园中为74.58 t ha -1 。在两个工作单元中，果园中有130.15 t ha -1 ，牧场中有71.305 t ha -1 。这导致第一工作单元中的固碳增加41.69 t ha -1 ，第二工作单元中的固碳增加58.845 t ha -1 。核桃树空中生物量固碳最多。影响土壤有机碳的最重要因素是有机物质含量，Ec和淤泥和沙的百分比。土壤中的有机碳与土壤中的有机物质之间存在着有意义的正相关关系。结果表明，土地利用变化对提高该地区的总固碳量具有显著作用。

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