Soil Quality Dynamics Under Successional Alfalfa Field in the Semi-arid Loess Plateau of Northwestern China

Jiang, Jinping; Xiong, You‐Cai; Yu, Jia; Li, Fengmin; Xu, Jianguo; Jiang, Hongmei

doi:10.1080/15324980701603524

Cited by 35 publications

(54 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the Loess Plateau, vegetation destruction, caused by overgrazing and inappropriate agricultural practices together with adverse environmental and extreme climate conditions, has led to serious soil erosion, a reduction in soil fertility and general environmental deterioration (Wang, 2002;Jiang et al, 2007). Since 1999, the Chinese Government has taken effective measures to control soil erosion and restore the damaged environment by returning cropland to forest and grassland.…”

Section: Introductionmentioning

confidence: 98%

Rhizosphere soil microbial activity under different vegetation types on the Loess Plateau, China

et al. 2011

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 98%

Rhizosphere soil microbial activity under different vegetation types on the Loess Plateau, China

et al. 2011

View full text Add to dashboard Cite

“…Unsustainable agricultural practices have resulted in extreme soil erosion (Cai et al, 2006;Jiang et al, 2007), which can lead to physical and chemical degradation (Lal et al, 2000). In response to the decline in regional soil quality in the Loess plateau, there has been a gradual shift from conventional tillage towards conservation tillage practices such as zero tillage farming, crop residue retention and crop rotation.…”

Section: Introductionmentioning

confidence: 99%

Comparison of soil microbial community catabolic diversity between rhizosphere and bulk soil induced by tillage or residue retention

Yang¹,

Wang²,

Shen

2013

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

The effects of long term no-till and crop residue on soil microbial community catabolic function and relevant carbon cycle in the rhizosphere and bulk soils were assessed in the 10 th year of a maize-winter wheat-soybean crop rotation. Conventional and zero tillage were coupled with residue removal and residue retention in a factorial design. Soil microbial community catabolic diversity was determined using Biolog-Eco plate. Average well colour development value (AWCD) of the microbial community in the rhizosphere soil was significantly higher than that in the bulk soil. Soil organic carbon (SOC) and microbial biomass carbon (MB-C) content of rhizosphere soil under both zero tillage and residue removal treatments were significantly higher than those in the bulk soil. Microbes in bulk soil presented a preferential utilization of diverse carbon sources when crop residue was retained. Zero tillage significantly increased the utilization of most carbon sources of microbial in the rhizosphere compared to conventional tillage. Principal component analysis (PCA) of the distribution of carbon substrate utilization for all treatments suggests that the microbial community catabolic diversity is different between the tillage management treatments and between soil sampling positions. Effects of zero tillage and crop residue retention were different with respect to the microbial catabolic diversity in the rhizosphere and the bulk soil.

show abstract

“…In addition, C storage also showed significant positive correlation with soil TP. On the Loess Plateau, P deficit in soil is a primary limiting factor to plant production . In the study, C storage of vegetation had significant positive correlations with soil TP ( p < 0.05).…”

Section: Discussionmentioning

confidence: 66%

Carbon Storage Dynamics in Alfalfa (Medicago sativa) Fields in the Hilly‐Gully Region of the Loess Plateau, China

Deng

Wang

et al. 2014

CLEAN Soil Air Water

View full text Add to dashboard Cite

Alfalfa (Medicago sativa) has been widely employed in the dryland region of the Loess Plateau, China to improve soil and water conservation and to develop livestock production. Our objective was to study the dynamics of plant and soil organic carbon (SOC) pools following the conversion of sloping farmland to alfalfa fields over a period of 30 years. The succession gradient is composed of seven differently aged alfalfa fields (0, 5, 9, 13, 16, 23, 30 years). The results show that soil C storage (0–100 cm) dynamics were consistent with belowground biomass storage with increased planting years, but C storage always increased with the number of planting years in the 0–5 cm soil layer. Planted perennial alfalfa resulted in a decline in soil C storage in the 0–100 cm soil depth in the early period (nine years). During the late succession stage of alfalfa (13 years) soil C storage tends to recover, and after 16 years, storage values again dropped. However, it had recovered by 30 years at which time alfalfa productivity was very low. Vegetation C storage was mainly decided by the belowground biomass and ecosystem C storage dynamics was consistent with soil C storage. Vegetation biomass, root/shoot ratio, SOC, soil total nitrogen, and total phosphorus were the main factors affecting C storage in the entire alfalfa field ecosystem. The results suggest that C storage in vegetation is directly related to plant productivity, C storage in the soil throughout the entire alfalfa field ecosystem was not only related to plant productivity, but also to SOC and soil nutrients.

show abstract

Soil Quality Dynamics Under Successional Alfalfa Field in the Semi-arid Loess Plateau of Northwestern China

Cited by 35 publications

References 27 publications

Rhizosphere soil microbial activity under different vegetation types on the Loess Plateau, China

Rhizosphere soil microbial activity under different vegetation types on the Loess Plateau, China

Comparison of soil microbial community catabolic diversity between rhizosphere and bulk soil induced by tillage or residue retention

Carbon Storage Dynamics in Alfalfa (Medicago sativa) Fields in the Hilly‐Gully Region of the Loess Plateau, China

Contact Info

Product

Resources

About