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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Carbon sequestration potential of Hardwickia binata Roxb. based agroforestry in hot semi-arid environment of India: an assessment of tree density impact
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Carbon sequestration potential of Hardwickia binata Roxb. based agroforestry in hot semi-arid environment of India: an assessment of tree density impact

机译：Hardwickia Binata Roxb的碳封存电位。 印度热半干旱环境中的基于农学院：树密度影响的评估

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Agroforestry is one of the most promising options for climate change mitigation through carbon sequestration. However, carbon sequestered in agroforestry system depends on various factors like type of tree species, tree density, system age, soil and climate. One of the most important factors for enhancing carbon sequestration per unit land is tree density. Hardwickia binata Roxb. has been reported as suitable agroforestry tree species with multiple benefits in arid and semi-arid region, however, the role and impact of tree density in carbon sequestration is poorly reported. This study estimated impact of tree density (D-1 = 333 tree ha(-1) and D-2 = 666 tree ha(-1)) on carbon sequestration potential of 30-year-old H. binata Roxb. + Cenchrus setigerus silvipasture system in hot semiarid region of Rajasthan. The carbon sequestered in tree biomass was estimated by reported allometric equations, whereas in soil it was determined by Walkley and Black method. Results showed significant impact of tree density on carbon sequestration per unit tree and per hectare land. The average biomass carbon sequestered by a tree was significantly more (44.5%) in low density (D-1) compared to high density (D-2) system. However, total biomass carbon sequestered per hectare land was significantly more (40.8%) in high density system (31.6 +/- 12.6 Mg C ha(-1)). Carbon sequestered in soil organic matter was higher in both D-1 and D-2 systems compared to control (sole Cenchrus setigerus field). It ranged from 19.93 +/- 0.31 Mg C ha(-1) in control to 22.94 +/- 0.65 Mg C ha(-1) and 23.25 +/- 0.78 Mg C ha(-1) in D-1 and D-2 respectively. The total carbon sequestered (below and above ground tree biomass and soil organic carbon) was in the order D-2 & D-1 & control.
机译：农业剧是通过碳封存的最有希望的气候变化选择选择之一。然而，在制剂系统中隔离的碳取决于树种类型，树密度，系统年龄，土壤和气候等各种因素。为每单位土地增强碳封存的最重要因素之一是树密度。 Hardwickia Binata Roxb。已被报告为合适的农学生树种，在干旱和半干旱地区具有多种益处，然而，碳封存中树密度的作用和影响差不多。该研究估计树密度的影响（D-1 = 333树HA（-1）和D-2 = 666树HA（-1））对30岁的H.Binata Roxb的碳封存电位上的碳螯合电位。拉贾斯坦邦热半干旱地区的+ CENCHRUS SETIGERUS Silvipasture系统。通过报告的同种式方程估计树生物质中含有碳的碳，而在土壤中，它由伴游和黑色方法决定。结果表明树密度对每单位树和每公顷土地的碳封存产生重大影响。与高密度（D-2）系统相比，通过树隔离的平均生物质碳在低密度（D-1）中显着更多（44.5％）。然而，每公顷土地隔离的总生物质碳在高密度体系中均显着（40.8％）（31.6 +/- 12.6mg C ha（-1））。与对照（唯一的CENCHRUS SETIGERUS Field）相比，D-1和D-2系统中，在土壤有机物质中隔离的碳含量较高。它从19.93 +/- 0.31 mg c h ha（-1）中的控制中，控制在22.94 +/- 0.65 mg c ha（-1）和23.25 +/- 0.78 mg c ha（-1）中，d-1和d-分别为2。定碳的总碳（下面和地上和地上的地面生物质和土壤有机碳）是D-2＆amp; D-1＆amp; 控制。

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