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Soil carbon pool changes following semi-arid lands planting programs
Catena ( IF 6.2 ) Pub Date : 2020-03-17 , DOI: 10.1016/j.catena.2020.104563
Kim-Hung Pho , Mohsen Sarshad , Parviz Alizadeh , Mohammad Reza Mahmoudi

Success in carbon sequestration projects (CSPs) is a challenging issue in semi-arid regions, therefor the objective of this report was to monitor soil carbon stock (SCS) through tree planting programs (TPPs) in Iran’s central lands. We monitored SC pool changes in rhizosphere of Haloxylon persicum Bunge, Atriplex canescens (Pursh) Nutt., Nitraria schoberi L. and Amygdalus scoparia Spach planted in pure form under densities of 200 plants/ha (Den1) and 275 plants/ha (Den2) every two years 2004 to 2018. Results demonstrated carbon sequestration (CS) depends strongly on the type of species and its density at the early stage of TPPs (P < 0.01). Also under Den2, the rate of CS changes had an erratic trend under TPPs and the maximum biennial rate was 23.0, 18.5, 13.7 and 17.0% for H. persicum, A. canescens, N. schoberi and A. scoparia, respectively. Interestingly this report, significant increase of 271.19, 222.00, 138.90 and 206.40 kg h−1, respectively has occurred in 0.3 m soil depth after 14 years’.



中文翻译:

半干旱土地种植计划后土壤碳库的变化

在半干旱地区,碳封存项目(CSPs)的成功是一个具有挑战性的问题,因此,本报告的目的是通过伊朗中部地区的植树计划(TPPs)监测土壤碳储量(SCS)。我们监测了以纯植物形式在200株/公顷(Den 1)和275株/公顷(Den)的密度下种植的梭梭(Haloxylon persicum Bunge),滨藜(Pursh)Nutt。,Nitraria schoberi L.和Amygdalus scoparia Spach根际的SC库变化。2)从2004年至2018年每两年。结果表明,碳固存(CS)在很大程度上取决于TPPs早期的物种类型及其密度(P <0.01)。同样在书房2的CS变化率下的TPP有一个不稳定的趋势,最大二年生率为23.0,18.5,13.7和17.0%H.仙客来A.藜N. schoberi黄蒿分别。有趣的是,在14年后的0.3 m土壤深度中,分别显着增加了271.19、222.00、138.90和206.40 kg h -1

更新日期:2020-03-19
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