Comprehensive eco-environmental effects of the shelter-forest ecological engineering along the Tarim Desert Highway

Lei, Jiaqiang; Li, Shengyu; Jin, Zhao; Fan, Jun; Wang, Haifeng; Fan, Dongdong; Zhou, Hongwei; Feng, Gu; Qiu, YongZhi; Xu, Bo

doi:10.1007/s11434-008-6022-3

Cited by 29 publications

(32 citation statements)

References 14 publications

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“…For instance, saline groundwater is applied in the ecological shelterbelt in the Taklimakan Desert, the largest mobile desert in China. The desert has a harsh environment with little precipitation and strong evaporative potential [4]. To access oil fields, a highway was built from north to south across the Taklimakan Desert in 1997.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Distribution of Soil Moisture and Salinity in the Taklimakan Desert Highway Shelterbelt

Huang

Wang

Zhao

et al. 2015

Water

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Distribution of Soil Moisture and Salinity in the Taklimakan Desert Highway Shelterbelt

Huang

Wang

Zhao

et al. 2015

Water

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“…The lack of water, severe shifting sand hazards, and inability to produce agricultural products render the region inhospitable to humans. from the damage of shifting sand [9]. The plants in the shelterbelt are drip irrigated with local high-salinity groundwater (with salinities of 2.82-29.70 g·L −1 ) as a result of an extreme freshwater resource shortage.…”

Section: Study Sitementioning

confidence: 99%

“…Plant growth, microclimate, and soil properties significantly changed [9,15]. The SSCs in 1-, 4-, 7-, and 10-year-old shelterbelts at the flat sandy lands were sampled in June 2013.…”

Section: Annual Sscs Dynamicsmentioning

confidence: 99%

“…After the construction of the entire shelterbelt, mobile dunes are successfully stabilized on both sides of the Taklimakan Desert Highway, and the atmospheric dust and finer soil particles are retained, thereby promoting SSCs formation because of the litter and decomposition of plants [9,23]. Plant litter increases the soil macropores, thereby increasing the infiltration rate and decreasing salt accumulation.…”

Section: Response Of Sscs To Irrigation Water and Other Factorsmentioning

confidence: 99%

“…Although SSCs are widely distributed in the shelterbelt, the salt content in the rooting zone remains relatively low and is thus insufficient to injure plants [7,10]. The influence of long-term saline irrigation on the ecology of the Taklimakan Desert Highway Shelterbelt was examined by Lei et al [9]. Shimojima et al [11] established a relationship between evaporation and salinization.…”

Section: Introductionmentioning

confidence: 99%

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Spatial-Temporal Distribution of Soil Salt Crusts under Saline Drip Irrigation in an Artificial Desert Highway Shelterbelt

Zhang

Wang

Zhao

et al. 2016

Water

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Abstract:Understanding the formation and spatial-temporal distribution of soil salt crusts (SSCs) is important for the sustainable management of the artificial shelterbelt and high-salinity groundwater utility in the Taklimakan Desert in Northwest China. The SSCs in this area were sampled, and their thickness and electrical conductivity (EC) were analyzed to examine the formation mechanism and the spatial-temporal patterns of the SSCs in the shelterbelt, which is drip irrigated with high-salinity groundwater in the Taklimakan Desert. Results demonstrated the following: (1) Soil-moisture depletion and salt accumulation at the soil surface occurred simultaneously. The soil water and salt in the different areas around the drip irrigation emitter showed different temporal dynamics in an irrigation cycle; (2) SSCs EC increased at a logarithmic rate, and SSCs thickness increased linearly with irrigation water salinity; (3) SSCs showed evident spatial distribution around the drip irrigation emitter. The EC initially increased with increasing distance from the emitter but subsequently decreased in different directions around the emitter. The highest EC was recorded at 40 cm from the emitter; (4) Topography had a significant effect on the spatial distribution of SSCs. The EC at the upslope of the emitter was higher than that at the downslope; (5) SSCs thickness showed an initial rapid increase with shelterbelt age, which was followed by a gradual increase. However, EC decreased with shelterbelt age. Our findings can contribute to the shelterbelt design, construction, utility, and sustainable management and the soil and water conservation in shifting desert regions.

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Observational evidence for impacts of vegetation change on local surface climate over northern China using the Granger causality test

2015

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The three-north region in China (northeastern, northwestern, and northern China) is one of the most environmentally vulnerable regions in the country. To improve the local natural environment, the Chinese government launched the Three-North Shelter Forest Program, one of the largest afforestation/reforestation programs in the world. This program has led to significant changes in vegetation. Although many studies have evaluated the impacts of vegetation changes on local climate in this region, their results are highly inconsistent. In this study, evidence for local monthly climate impacts of vegetation change was investigated using remotely sensed data and ground meteorological measurements during the growing season (May to September) from 1982 to 2011 using the bivariate Granger causality test. The results showed that the local near-surface climate is sensitive mostly to vegetation changes characterized by the normalized difference vegetation index (NDVI) in arid and semiarid regions and that vegetation plays a more important role in influencing hydroclimate in the arid/semiarid zones than in other zones, which has great implications for water resources in this dry region. Moreover, NDVI changes in northeastern China have a significantly negative influence on air tembut no other climatic variables, whereas the test results in northern China is not as objective as the other zones due to the rapid urbanization. All these results suggest that the local climate is very sensitive to the variations in vegetation in arid and semiarid regions, so extra caution should be taken when planting trees in this area.

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Comprehensive eco-environmental effects of the shelter-forest ecological engineering along the Tarim Desert Highway

Cited by 29 publications

References 14 publications

Spatiotemporal Distribution of Soil Moisture and Salinity in the Taklimakan Desert Highway Shelterbelt

Spatiotemporal Distribution of Soil Moisture and Salinity in the Taklimakan Desert Highway Shelterbelt

Spatial-Temporal Distribution of Soil Salt Crusts under Saline Drip Irrigation in an Artificial Desert Highway Shelterbelt

Observational evidence for impacts of vegetation change on local surface climate over northern China using the Granger causality test

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