Effects of sandy desertified land rehabilitation on soil carbon sequestration and aggregation in an arid region in China

Su, Yong Zhong; Wang, Xue Fen; Yang, Rong; Lee, Jaehoon

doi:10.1016/j.jenvman.2009.12.014

Cited by 93 publications

(61 citation statements)

References 25 publications

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“…Li et al (2009) found that crop rotations increased SOC and TN densities by 30-65% and 61-64%, respectively, in the 0-30 cm soil during the 10 years of cultivation after the desert was transformed into irrigated cropland. The SOC and TN contents in the topsoil of sand-fixing shrubs, irrigated cropland and shelter forest increased with time after the reclamation of desert land (Su et al, 2007(Su et al, , 2010a(Su et al, , 2010b. Su et al (2009) reported that SOC and TN accumulated at rates of 0.4 Mg C ha −1 year −1…”

Section: Introductionmentioning

confidence: 99%

Multi-scale variability of soil carbon and nitrogen in the middle reaches of the Heihe River basin, northwestern China

Gao

Lü

et al. 2016

CATENA

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Section: Introductionmentioning

confidence: 99%

Multi-scale variability of soil carbon and nitrogen in the middle reaches of the Heihe River basin, northwestern China

Gao

Lü

et al. 2016

CATENA

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“…Sand-fixing shrubs, such as Haloxylonam modendron, Calligonummongolicum, Tamarix, and Elaeagnus angustifolia, have been shown to contribute to the maintenance of oasis stability (Su et al 2007). The methods of establishing protective forest belts in the oasisdesert transitional zone and retiring degraded cropland into forest or grassland have been successfully applied to combat desertification (Su et al 2010). Roads parallel to pipelines should be closed with fences to prevent cutting and grazing along the road.…”

Section: Environmental Management Of Pipeline Projects In the Oasis Rmentioning

confidence: 99%

How does pipeline construction affect land desertification? A case study in northwest China

et al. 2015

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The expansion of large pipelines can strongly affect fragile ecosystems in arid regions. However, the issue of oasis desertification due to pipeline construction has rarely been addressed. In this study, three parallel pipelines routed through the Zhangye Oasis located in the middle Heihe River Basin in northwest China were chosen as a case study, and the intensity and extent of the pipeline construction disturbances on oasis desertification were evaluated using satellite images. The results indicated that land desertification increased from 20,427 ha before the pipeline disturbance to 26,312 ha after the construction in the 5000-m buffer zone. The relative rate of land desertification was used to identify the cumulative impact of pipeline disturbance. The threshold distance of the first pipeline's disturbance was 2000-3000 m. However, after the second and third pipeline installations, the threshold extended to 3000-4000 m, which may result from the cumulative impact of the incremental projects. The disappearance of soil and vegetation, and rivers across was the direct impacts of the pipelines' construction on oasis desertification. Cutting and grazing along the ancillary road made for increasing reclamation led to indirect impacts of the pipelines' construction on oasis degradation. To reduce the effects of pipeline disturbance on oasis desertification, the implementation of mitigation measures such as backfilling the removed soil, recovery of the local vegetation, retirement of the degraded cropland, limitation of ancillary roads, and cross-river cofferdam diversions are recommended for the environmental management of pipeline projects.

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“…This will affect the global carbon cycle through reducing the total soil carbon pools and increasing the emission of CO 2 from the soil and vegetation into the atmosphere (Lal, 2001; Jabro et al, 2008;Yu et al, 2007). Su et al (2010) compared soil carbon sequestration at 0-30 cm depths of rehabilitated desert lands and a control area in northwest China. They reported that the values reached 1.8-9.4 and 7.5-17.3 Mg/ha over 7-and 32-year rehabilitation periods, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…They reported that the values reached 1.8-9.4 and 7.5-17.3 Mg/ha over 7-and 32-year rehabilitation periods, respectively. They hence concluded that desertification control could be beneficial to soil carbon sequestration and soil quality improvement (Su et al, 2010). Amani and Maddah Arefi (2003) estimated the amount of carbon sequestrated in aerial biomass of 1.5 × 10 6 ha of Iran's desert lands planted with Haloxylon at about 5.7 million tons.…”

Section: Introductionmentioning

confidence: 99%

The Role of Haloxylon Plantations in Improving Carbon Sequestration Potential of Sand Dunes of Iran

Loni¹

2018

Appl. Ecol. Env. Res.

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Abstract. Rehabilitation of desertified land in semi-arid and arid regions through Haloxylon plantations has a great potential to increase carbon sequestration. In this study, carbon distribution and sequestration were examined in different parts of Haloxylon spp. and depths of soil surface. Afterward, the economic value of carbon sequestration in the Haloxylon plantation was estimated. In order to investigate vegetation variables, a systematic random method with 10 nested plots was applied. Plant properties including diameter at breast height, tree height, height to crown, and the small and large diameters of the crown were measured. Tree and soil sampling was conducted in 10 × 10 m 2 and 5 × 5 m 2 plots, respectively. Soil was sampled at 0-15 and 15-30 cm depths of Haloxylon plantation and control area. Litter were harvested at1 × 1 m 2 plots. Algometric equations and Walkley-Black method were used to determine plant biomass and soil organic carbon sequestration. The results showed that planting Haloxylon increased carbon sequestration by up to 24.46 ton/ha compared to the control area. Economic value of carbon sequestration in the Haloxylon plantation was estimated at $3.74 million. Carbon was mostly sequestrated in the branches and roots. Carbon sequestration in different parts of the plant was calculated as 16.6 ton/ha (54% of total sequestration). Soil organic carbon sequestration was computed as 13.9 ton/ha (46% of total sequestration). Haloxylon species has a high potential for carbon sequestration. Nevertheless, the species used in rehabilitation of desertified lands need to be capable of maintaining other resources, especially water resources.

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Effects of sandy desertified land rehabilitation on soil carbon sequestration and aggregation in an arid region in China

Cited by 93 publications

References 25 publications

Multi-scale variability of soil carbon and nitrogen in the middle reaches of the Heihe River basin, northwestern China

Multi-scale variability of soil carbon and nitrogen in the middle reaches of the Heihe River basin, northwestern China

How does pipeline construction affect land desertification? A case study in northwest China

The Role of Haloxylon Plantations in Improving Carbon Sequestration Potential of Sand Dunes of Iran

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