Soil degradation and food security coupled with global climate change in northeastern China

Gong, Huili; Meng, Dan; Li, Xiaojuan; Zhu, Feng

doi:10.1007/s11769-013-0626-5

Cited by 34 publications

(20 citation statements)

References 10 publications

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“…NE China is the most important grain commodity region with largest scale of land reclamation in history and is presently experiencing serious soil degradation [ 36 , 37 ]. Despite the extensive literature on the effect of afforestation of formerly arable land on soil properties [ 64 ], the time period for recovery and measures for improving forest management are still in debates for a specific region [ 64 , 65 ].…”

Section: Discussionmentioning

confidence: 99%

“…In NE China, the original climax vegetation in areas with typical black soils is Korean pine-broadleaf mixed forest. Historically, farmland has been gained by destroying local original vegetation including primary forests, and this process, along with the ensuing farming practices, has greatly degraded soil quality in terms of soil fertility and soil physics [ 36 , 37 ]. In this paper, soils in areas of climax vegetation were selected for use as the control reference, and soils from poplar plantation forest and neighbouring farmland were sampled to evaluate the effects of afforestation on soil properties and GRSP (concentration and composition).…”

Section: Methodsmentioning

confidence: 99%

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Role and Variation of the Amount and Composition of Glomalin in Soil Properties in Farmland and Adjacent Plantations with Reference to a Primary Forest in North-Eastern China

Wang

et al. 2015

PLoS ONE

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The glycoprotein known as glomalin-related soil protein (GRSP) is abundantly produced on the hyphae and spores of arbuscular mycorrhizal fungi (AMF) in soil and roots. Few studies have focused on its amount, composition and associations with soil properties and possible land-use influences, although the data hints at soil rehabilitation. By choosing a primary forest soil as a non-degraded reference, it is possible to explore whether afforestation can improve degraded farmland soil by altering GRSP. In this paper, close correlations were found between various soil properties (soil organic carbon, nitrogen, pH, electrical conductivity (EC), and bulk density) and the GRSP amount, between various soil properties and GRSP composition (main functional groups, fluorescent substances, and elements). Afforestation on farmland decreased the EC and bulk density (p < 0.05). The primary forest had a 2.35–2.56-fold higher GRSP amount than those in the plantation forest and farmland, and GRSP composition (tryptophan-like and fulvic acid-like fluorescence; functional groups of C–H, C–O, and O–H; elements of Al, O, Si, C, Ca, and N) in primary forest differed from those in plantation forest and farmland (p < 0.05). However, no evident differences in GRSP amount and composition were observed between the farmland and the plantation forest. Our finding highlights that 30 years poplar afforestation on degraded farmland is not enough to change GRSP-related properties. A longer period of afforestation with close-to-nature managements may favor the AMF-related underground recovery processes.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Role and Variation of the Amount and Composition of Glomalin in Soil Properties in Farmland and Adjacent Plantations with Reference to a Primary Forest in North-Eastern China

Wang

et al. 2015

PLoS ONE

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“…Nitrogen (N) is an essential element for the synthesis of major biomolecules in plants [7]. Chemical N fertilizer application is a main approach to supplement crops with N in agricultural ecosystems; however, it may be at the cost of energy, labor, and environmental damage [8,9]. One sustainable N source is biological nitrogen fixation (BNF).…”

Section: Introductionmentioning

confidence: 99%

Effect of Biochar and Irrigation on the Interrelationships among Soybean Growth, Root Nodulation, Plant P Uptake, and Soil Nutrients in a Sandy Field

Egamberdieva

Wirth

et al. 2019

Sustainability

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To investigate the interrelationships among biochar, soil nutrients, and soybean plant growth in more detail, the root nodulation response of soybean (Glycine max L.) to biochar application was analyzed in a field study. We further examined the biochar effect on soil phosphatase activity to elucidate the relationships among biochar, phosphatase activity, and plant phosphorus uptake. Soybean was planted in a sandy field wherein the biochar and irrigation conditions were considered the two treatment factors. In our result, irrigation increased the pod number and plant height by 20.7% and 11.1%, respectively. Irrigation reduced the shoot and root dry matter content by 67.9% and 75.1%, respectively. The nodule number increased by 37% due to biochar addition under irrigated conditions. The soil carbon concentration was elevated by 13.4% with biochar application under rainfed conditions. Acid phosphomonoesterase (APM) was increased by 21.8% in the biochar-incorporated plots under the irrigated condition. Principal component analysis and redundancy analysis suggested that biochar application enhanced the relationships between the nodule number and soil potassium and magnesium concentrations. The correlation between soil sulfur content and nodule number was eliminated by biochar application. APM activity was associated with higher shoot and root phosphorus content and shoot dry weight after biochar application.

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“…Its representative landscape is rolling hills with long slope length and level plains. Excessive cultivation, long slopes, erosion-susceptible soil, high-intensity summer rainstorms, and lack of soil and water conservation measures have caused concentrated runoff and severe water erosion, which lead to extensive gully erosion in this region (Liu et al, 2010;Kravchenko et al, 2011;Gong et al, 2013). In 2010 there were 290 000 gullies in Northeast China, occupying more than 5000 km 2 .…”

Section: Introductionmentioning

confidence: 99%

Effects of topography and land use change on gully development in typical Mollisol region of Northeast China

Cruse

Liu

et al. 2016

Chin. Geogr. Sci.

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Due to high intensity agricultural exploitation since the middle of the 20th century, farmland gullies have become a pervasive form of water erosion in Northeast China. Yet few researches are concentrated on how topography and land use affect long-term gully development in this region. In this study, gully distribution in a village with an area of 24.2 km 2 in the central Mollisols area of Northeast China in different times were compared by Aerial photography (1968), Quickbird image (2009) and field survey, and factors affecting gully development including land use and topography were analyzed. The results showed that the total gully number decreased from 104 to 69, while occupying area rose from 34.8 ha to 78.4 ha from 1968 to 2009. Fundamental gully distribution had been formed by 1968 as most of 2009′s gullies were evolved from 1968′s gullies′ merge and width expansion process, and new gullies those initiated after 1968 occupied only 7% of total gully area in 2009. Gully area increasing ratio in grassland was the highest and that in forestland was the lowest. The threshold catchment area between simple and complex gully development was around 15 ha to 25 ha. This threshold value sets apart catchment areas that will develop simple or complex gullies in areas with similar environmental conditions. Gully control measurements were urgent because if appropriate gully control implements would not be applied, present gully erosion crisis could be doubled within 50 years.

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Soil degradation and food security coupled with global climate change in northeastern China

Cited by 34 publications

References 10 publications

Role and Variation of the Amount and Composition of Glomalin in Soil Properties in Farmland and Adjacent Plantations with Reference to a Primary Forest in North-Eastern China

Role and Variation of the Amount and Composition of Glomalin in Soil Properties in Farmland and Adjacent Plantations with Reference to a Primary Forest in North-Eastern China

Effect of Biochar and Irrigation on the Interrelationships among Soybean Growth, Root Nodulation, Plant P Uptake, and Soil Nutrients in a Sandy Field

Effects of topography and land use change on gully development in typical Mollisol region of Northeast China

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