Effect of different vegetation cover on the vertical distribution of soil organic and inorganic carbon in the Zhifanggou Watershed on the loess plateau

Zhao, Wei; Zhang, Rui; Huang, Chengzhi; Wang, Baiqun; Cao, Hua; Koopal, L.K.; Tan, Wenfeng

doi:10.1016/j.catena.2016.01.003

Cited by 109 publications

(61 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the one hand, about 70% of the net primary productivity (NPP) of the natural ecosystem returns to the soil through litter [64], and SE increased the NPP [19], as a result of which the litter productivity increased. On the other hand, the accumulation of OC increased with the decrease in the C/N ratio of the litter [92], and shrub litter had a lower C/N ratio than grass [64,93]. The litter traits of shrubs were thus more conducive to the accumulation of soil OC than of that of grass.…”

Section: The Main Factors Controlling Soil Carbon Storage Over Shrub mentioning

confidence: 93%

Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland

et al. 2019

View full text Add to dashboard Cite

Soil nutrient stoichiometry plays a substantial role in terrestrial carbon and nutrient cycling. However, the changes in soil nutrient stoichiometry with shrub encroachment (SE) remain poorly understood, especially in subalpine areas. We examined the changes in soil nutrient concentration, nutrient stoichiometry, and organic carbon (OC) storage (at a depth of 0–5, 5–10 and 10–20 cm) in three successional shrub encroachment stages (early, mid and late) in an abandoned subalpine Eulalia pallens (Hackel) Kuntze grassland. An ANOVA showed that SE did not produce serious soil acidification, but significantly increased the soil OC and total phosphorous (TP) concentration, and improved the stoichiometry ratio of soil OC to total nitrogen (OC:TN) in all layers. OC storage tended to increase with SE. SE thus did not indicate degradation of the grassland. A redundancy analysis (RDA) and partial RDA revealed that the shrub relative cover and soil water content were the most important factors affecting the soil nutrient concentration, that the soil available phosphorous (AP), nitrogen, potassium, calcium (ACa), and magnesium concentration and shrub relative cover were the most important factors influencing soil nutrient stoichiometry ratios, and that soil OC:TN, TN:TP, OC:TN:TP, and AP:ACa ratios, bulk density, and pH were the most important factors influencing soil OC storage over SE. Our study provides insights into SE in grassland areas, and potentially provides a useful reference for ongoing grassland conservation and restoration in subalpine regions.

show abstract

Section: The Main Factors Controlling Soil Carbon Storage Over Shrub mentioning

confidence: 93%

Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland

et al. 2019

View full text Add to dashboard Cite

show abstract

“…S6). Selecting exposed and protected slopes allowed us to account for the terrain effects on treeline altitudes (Zhang, Zhang, & Mian, ; Zhao et al., ). These transects were from the current treeline downward to lower altitudes at 10 m intervals.…”

Section: Methodsmentioning

confidence: 99%

Warming‐induced upward migration of the alpine treeline in the Changbai Mountains, northeast China

Liu

et al. 2017

Global Change Biology

View full text Add to dashboard Cite

Treeline responses to environmental changes describe an important phenomenon in global change research. Often conflicting results and generally too short observations are, however, still challenging our understanding of climate-induced treeline dynamics. Here, we use a state-of-the-art dendroecological approach to reconstruct long-term changes in the position of the alpine treeline in relation to air temperature at two sides in the Changbai Mountains in northeast China. Over the past 160 years, the treeline increased by around 80 m, a process that can be divided into three phases of different rates and drives. The first phase was mainly influenced by vegetation recovery after an eruption of the Tianchi volcano in 1702. The slowly upward shift in the second phase was consistent with the slowly increasing temperature. The last phase coincided with rapid warming since 1985, and shows with 33 m per 1°C, the most intense upward shift. The spatial distribution and age structure of trees beyond the current treeline confirm the latest, warming-induced upward shift. Our results suggest that the alpine treeline will continue to rise, and that the alpine tundra may disappear if temperatures will increase further. This study not only enhances mechanistic understanding of long-term treeline dynamics, but also highlights the effects of rising temperatures on high-elevation vegetation dynamics.

show abstract

“…Steppes and deserts stock less SOC but are widely distributed, especially on the Loess Plateau. Researchers have studied SOC storage (W. Li, Cao, et al, ; Zhang & Shangguan, ) and distribution (W. Sun, Zhu, & Guo, ; J. Wang, Yang, & Bai, ; Xin, Qin, & Yu, ; Zhao et al, ) on the Loess Plateau, but the scale of this research was limited to nature reserves or watersheds.…”

Section: Introductionmentioning

confidence: 99%

Large‐scale soil organic carbon mapping based on multivariate modelling: The case of grasslands on the Loess Plateau

Wang

Deng

et al. 2017

Land Degrad Dev

View full text Add to dashboard Cite

The Loess Plateau is considered one of the world's regions with severe soil erosion. Grasslands are widely distributed on the Loess Plateau, accounting for approximately 40% of the total area.Soil organic carbon (SOC) plays an important role in the terrestrial carbon cycle in this region.We compiled more than 1,000 measurements of plant biomass and SOC content derived from 223 field studies of grasslands on the Loess Plateau. Combined with meteorological factors (precipitation and air temperature) and the photosynthetically active radiation factor, the topsoil SOC contents of grasslands were predicted using the random forest (RF) regression algorithm. biomass and temperature should receive more attention due to increasing C sequestration.

show abstract

Effect of different vegetation cover on the vertical distribution of soil organic and inorganic carbon in the Zhifanggou Watershed on the loess plateau

Cited by 109 publications

References 29 publications

Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland

Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland

Warming‐induced upward migration of the alpine treeline in the Changbai Mountains, northeast China

Large‐scale soil organic carbon mapping based on multivariate modelling: The case of grasslands on the Loess Plateau

Contact Info

Product

Resources

About