Agroforestry Status and Its Role to Sequester Atmospheric Co2 Under Semi-Arid Climatic Conditions in Pakistan

Nawaz, Muhammad Farrakh

doi:10.15666/aeer/1601_645661

Cited by 13 publications

(5 citation statements)

References 28 publications

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“…Soil underneath trees carries reservoir of carbon pool being increased amount of litter with corresponding increased organic matter contents [23]. Present study findings were well supported by studies [22,24] that soil organic carbon decreases with decreasing soil depth.…”

Section: Discussionsupporting

confidence: 90%

Carbon Sequestration Potential of Roadside Trees in Southern Punjab, Pakistan

Zubair

Khan²,

Hussain³

2022

AJRAF

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Trees along roadside play an important role in climate change mitigation through carbon sequestration. Vehicular pollution is not only responsible for environmental degradation but also cause various health issues to inhabitants resides in the vicinity of such roads. Present study was conducted to observe the role of trees grown along roadside and their underneath soil are efficient in carbon storage at four different sites of Multan city, Punjab, Pakistan. Four sites covering whole Multan city were chosen namely Khaniwal road (S1); Nangshah road (S2); Shujaabad road (S3). and Boson road (S4). The most abundant of the tree species viz-a-viz, Dalbergia sissoo, Eucalyptus camadulensis and Vachellia nilotica were sampled having 10 trees across 04 sites and measured for their diameter and height, whereas, underneath each tree soil samples were extracted at two depths viz., (0-20) (20-40) were recorded during the field visit. The study calculated biomass using allometric equations while soil organic carbon and organic carbon was assessed using Walkely Black method. Although species have different height and diameter, hence, their sequestration rate was also different. Data revealed that in all four sites the carbon sequestration rate remained higher in E. camaldulensis for biomass (Above ground, Belowground and total biomass), carbon and soil organic carbon estimation. as compared to D.sissoo and V. nilotica at all four sites. This research concluded that E. camaldulensis species may be be planted along the roadside due to its higher carbon sequestration rate in maintaining health roadside ecosystem.

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Section: Discussionsupporting

confidence: 90%

Carbon Sequestration Potential of Roadside Trees in Southern Punjab, Pakistan

Zubair

Khan²,

Hussain³

2022

AJRAF

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“…Within each union council (subdivision of tehsil, as noted previously), if the average maximum desired tree density specified by farmers in interviews was lower than the largest measured plot tree density in that union council, then the measured value was taken as the potential tree density. This approach allowed our estimate of potential tree density to be influenced by both farmers' perceptions as well as the logistical and biophysical limitations reflected in the maximum measured tree density [29,30]. Uncertainty in our estimates of potential tree density were expressed as the standard deviation of farmers' responses to the question, "What is the maximum tree density that you would plant on your farm?".…”

Section: Total and Potential Carbon Poolsmentioning

confidence: 99%

Evaluation of Agroforestry Carbon Storage Status and Potential in Irrigated Plains of Pakistan

Yasin

Nawaz

Martin

et al. 2019

Forests

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The Kyoto Protocol includes agroforestry practices as a suggested approach for mitigating global atmospheric CO2. Agroforestry systems are a desirable option for mitigating atmospheric CO2, as they provide numerous secondary benefits, including food, fodder, fuel, increased farm income, biodiversity maintenance, and soil conservation. This research was planned to assess the current carbon storage status and future potential of agroforestry systems in Pakistan through a nondestructive approach (allometric equations) in 14 subdivisions (tehsils) of three selected districts located in the irrigated plains of Punjab, Pakistan. A total of 1750 plots of 0.405 ha each were selected in a randomized, unbiased sampling to estimate the total number of trees, tree species diversity, diameters at breast height (DBHs), and tree heights. Soil carbon was also measured at 0–30 cm using the Walkley–Black method in a subset of plots. It was found that the current number of trees in farms in the study area varied from 18 to 51 trees/ha, which can be increased to 42–83 trees/ha if all the farmers plant the maximum permissible number of trees along with their crops. The estimated total tree carbon stock ranged from 0.0003 to 8.79 Mgha−1, with the smallest mean value of 0.39 Mgha−1 for tehsil Faisalabad, and the largest mean value of 1.41 Mgha−1 for tehsil Chiniot. The whole study area had an estimated woody vegetation carbon stock of 950,470 Mg and a soil carbon stock of 22,743,008 Mg. If farmers in the study area all increased tree stocking to their average maximum desired stocking, the total tree carbon stock would more than double to 2,497,261 Mg. These results highlight both the current and potential carbon sequestration potential of agroforestry in Pakistan and can be further used in devising strategies for implementing tree planting programs on agricultural lands and designing future carbon sequestration projects in Pakistan.

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“…Using green plants is an efficient, sustainable, and cost-effective practice to improve salt-affected soils' quality [8,9]. Moreover, among vegetation, trees are considered to have more potential due to their higher tolerance index, larger biomass production, and longer periods of growth [9][10][11][12][13][14][15][16]. However, only selected tree species can be grown on saline soils [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Amendments in Soil on Physiological and Biochemical Attributes of Vachellia nilotica and Dalbergia sissoo under Saline Stress

Yousaf

Nawaz

Yasin

et al. 2022

Plants

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Vachellia nilotica (L.) P.J.H. Hurther & Mabb. and Dalbergia sissoo Roxb. are two of the most important multipurpose agroforestry tree species of the Indian sub-continent, but their growth in saline soils is greatly reduced. Recently, organic amendments have showed the potential to increase plant growth in salt-affected soils; however, the influence of using these amendments for growing the above-mentioned tree species under saline conditions is not yet quantified. Therefore, an experiment was devised to analyze the interactive effects of organic amendments in saline soils on the growth of V. nilotica and D. sissoo. Under controlled conditions, a pot experiment was conducted in sandy loam saline soils (EC = 20.5 dSm−1). Organic amendments from four diverse sources: farmyard manure (FYM), poultry manure (PM), slurry (SL), and farmyard manure biochar (FYMB) were employed in this study. At the harvesting time, data regarding morphological, physiological, ionic, and biochemical parameters were obtained. The current study results indicated that both tree species reacted differently, but positively, to diverse applied amendments. The maximum increment in total above-ground biomass, total below-ground biomass, and shoot length for V. nilotica (163.8%, 116.3%, and 68.2%, respectively) was observed in FYM amended soils, while the maximum increment for D. sissoo (128%, 86%, and 107%, respectively) was observed in FYMB amended soils, as compared to control. Minimum plant growth of both species was observed in untreated soils (saline soils). Likewise, the maximum potassium ion and minimum sodium ion concentrations were present in the root and shoots of plants (both species) treated with FYMB. The use of organic amendments resulted in decreased concentrations of malondialdehyde and hydrogen peroxide, and increased concentrations of antioxidant enzymes such as SOD, POD, and CAT. Moreover, higher photosynthetic rates and stomatal conductance were observed in the plants grown in amended soils. The findings of this study can be used to include the above-mentioned high-value tree species for future afforestation programs under saline conditions.

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Agroforestry Status and Its Role to Sequester Atmospheric Co2 Under Semi-Arid Climatic Conditions in Pakistan

Cited by 13 publications

References 28 publications

Carbon Sequestration Potential of Roadside Trees in Southern Punjab, Pakistan

Carbon Sequestration Potential of Roadside Trees in Southern Punjab, Pakistan

Evaluation of Agroforestry Carbon Storage Status and Potential in Irrigated Plains of Pakistan

Effect of Organic Amendments in Soil on Physiological and Biochemical Attributes of Vachellia nilotica and Dalbergia sissoo under Saline Stress

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