Effects of Pinus sylvestris var. mongolica afforestation on soil phosphorus status of the Keerqin Sandy Lands in China

Zhao, Qing; Zeng, De‐Hui; Lee, D.K.; He, Xingyuan; Fan, Zhiping; Jin, Yanling

doi:10.1016/j.jaridenv.2006.11.004

Cited by 60 publications

(38 citation statements)

References 37 publications

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“…Therefore, in the Shapotou area, the total Ca 2+ content in the soil was relatively high, resulting in a large reservoir of exchangeable calcium [13] that directly leads to the formation of the insoluble Ca-P phase [10,20], e.g., dicalcium phosphate and octacalcium phosphate [11,21]. On the other hand, with fixation of the dune, the soil CaCO 3 content in Shapotou increased significantly [17], which increased soil pH and precipitated Ca 2+ and phosphorus [10,22], decreasing availability of soil phosphorus [23]. Thus, the soil stoichiometry of the Ca-CO 3 /AP ratio was negatively correlated with A. ordosica density in Shapotou.…”

Section: Discussionmentioning

confidence: 99%

Effects of soil stoichiometry of the CaCO3/available phosphorus ratio on plant density in Artemisia ordosica communities

Zhao

Xue

et al. 2011

Chin. Sci. Bull.

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In soil, CaCO 3 can reduce the availability of phosphorus in arid and semi-arid regions, thereby influencing plant growth. However, the effects of soil stoichiometry of the CaCO 3 /available phosphorus ratio (CaCO 3 /AP ratio) on plant density are unknown. In this study, we examined 4 Artemisia ordosica communities located in arid and semi-arid regions, and performed a pot experiment with an orthogonal design to examine the relationships between the soil CaCO 3 /AP ratio and plant density. The results showed that the soil stoichiometry of the CaCO 3 /AP ratio had a greater effect on growth of A. ordosica than either CaCO 3 or AP as single factor. The influence of the soil CaCO 3 /AP ratio on density of A. ordosica was related to the climatic zone and the types and/or amplitudes of increases in the soil CaCO 3 /AP ratio. When the soil CaCO 3 /AP ratio was within the same amplitude and was less than 2.5, the A. ordosica density increased in the semi-arid region, whereas the density decreased with increasing soil CaCO 3 /AP ratios in the arid region. In the semi-arid region, when the soil CaCO 3 /AP ratio was within the same amplitude and the increase in the soil CaCO 3 content was greater than the increase in soil AP, the A. ordosica density increased with increasing soil CaCO 3 /AP ratios. This means that the relationship between the soil CaCO 3 /AP ratio and the A. ordosica density remained the same. In the arid region, an increase in the soil CaCO 3 /AP ratio as a result of increased soil CaCO 3 content and decreased soil AP resulted in increased density of A. ordosica. Therefore, the relationship between soil CaCO 3 /AP ratios and density of A. ordosica was altered by these changes in soil chemistry. Thus, the soil stoichiometry of the CaCO 3 /AP ratio is an important factor affecting the density of A. ordosica in arid and semi-arid regions.Artemisia ordosica, soil CaCO 3 , soil available phosphorus, soil CaCO 3 /available phosphorus ratio (soil CaCO 3 /AP ratio), stoichiometry, plant density Citation:Zhao X L, He X D, Xue P P, et al. Effects of soil stoichiometry of the CaCO 3 /available phosphorus ratio on plant density in Artemisia ordosica communities.

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Section: Discussionmentioning

confidence: 99%

Effects of soil stoichiometry of the CaCO3/available phosphorus ratio on plant density in Artemisia ordosica communities

Zhao

Xue

et al. 2011

Chin. Sci. Bull.

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“…Sparling et al (2000) New Zealand pine Vesterdal et al (2002) Denmark other conifer Williams et al (1977) UK pine Wu et al (2006) China pine Yeates and Saggar (1998) New Zealand pine Yeates et al (2000) New Zealand pine Yuste et al (2007) USA pine Zhao et al (2007) China pine Zinn et al (2002) Brazil eucalyptus Zinn et al (2002) Brazil pine…”

Section: Meta-analysismentioning

confidence: 99%

A global meta‐analysis of soil exchangeable cations, pH, carbon, and nitrogen with afforestation

Berthrong

Jobbágy

Jackson

2009

Ecological Applications

426

327

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Abstract. Afforestation, the conversion of non-forested lands to forest plantations, can sequester atmospheric carbon dioxide, but the rapid growth and harvesting of biomass may deplete nutrients and degrade soils if managed improperly. The goal of this study is to evaluate how afforestation affects mineral soil quality, including pH, sodium, exchangeable cations, organic carbon, and nitrogen, and to examine the magnitude of these changes regionally where afforestation rates are high. We also examine potential mechanisms to reduce the impacts of afforestation on soils and to maintain long-term productivity.Across diverse plantation types (153 sites) to a depth of 30 cm of mineral soil, we observed significant decreases in nutrient cations (Ca, K, Mg), increases in sodium (Na), or both with afforestation. Across the data set, afforestation reduced soil concentrations of the macronutrient Ca by 29% on average (P , 0.05). Afforestation by Pinus alone decreased soil K by 23% (P , 0.05). Overall, plantations of all genera also led to a mean 71% increase of soil Na (P , 0.05). Mean pH decreased 0.3 units (P , 0.05) with afforestation.Afforestation caused a 6.7% and 15% (P , 0.05) decrease in soil C and N content respectively, though the effect was driven principally by Pinus plantations (15% and 20% decrease, P , 0.05). Carbon to nitrogen ratios in soils under plantations were 5.7-11.6% higher (P , 0.05). In several regions with high rates of afforestation, cumulative losses of N, Ca, and Mg are likely in the range of tens of millions of metric tons. The decreases indicate that trees take up considerable amounts of nutrients from soils; harvesting this biomass repeatedly could impair long-term soil fertility and productivity in some locations. Based on this study and a review of other literature, we suggest that proper site preparation and sustainable harvest practices, such as avoiding the removal or burning of harvest residue, could minimize the impact of afforestation on soils. These sustainable practices would in turn slow soil compaction, erosion, and organic matter loss, maintaining soil fertility to the greatest extent possible.

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“…The mean annual temperature is 6.2 • C; the coldest month is January, which has an average of −16.2 • C; and the hottest month is July, which has an average temperature of 23.8 • C. The average annual frost-free period is 150 days [28,32]. The soil is an aeolian sandy soil with a typical composition of 90.9% sand, 5.0% silt, and 4.1% clay, which developed from sandy parent material through the action of wind and is characterized by coarse texture and loose structure [28,33,34]. The soil total organic carbon (TOC), total nitrogen (TN) and total P (TP) concentration at 0-15 cm are 4.35-5.22 g·kg −1 , 300-346 mg·kg −1 , and 125-149 mg·kg −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental Manipulation of Precipitation Affects Soil Nitrogen Availability in Semiarid Mongolian Pine (Pinus sylvestris var. mongolica) Plantation

Fan

et al. 2017

Water

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Expected changes in precipitation over large regions of the world under global climate change will have profound effects on terrestrial ecosystems in arid and semiarid regions. To explore how changes in the amount of precipitation in the growing season would affect soil nitrogen (N) availability in a semiarid ecosystem, we established rainout shelters and irrigation systems by simulating 30% reduced (DRY) and 30% increased precipitation (WET) relative to natural precipitation (Control) to measure some key soil process properties for two growing seasons in a nutrient-poor Mongolian pine (P. sylvestris var. mongolica) plantation. Both WET and DRY treatments significantly affected monthly soil inorganic nitrogen concentrations, which showed a higher inorganic N under DRY than Control in each month and lower in WET than Control. Monthly soil microbial biomass N content was reduced by DRY and raised by WET treatments. The results indicated the asynchrony of the availability of soil moisture and soil nutrients in Mongolian pine plantations at the Horqin Sandy Lands in Northeast China. Water limited plant growth in Mongolian pine plantations when precipitation decreased, and nitrogen limitation became increasingly important when precipitation increased. Accumulation of N in microbial biomass is an important mechanism for N cycling in this ecosystem. To effectively manage Mongolian pine plantations, it is advised that evapotranspiration is minimized when precipitation decreases and that there is an increase in soil N availability by protecting litterfall when precipitation increases.

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Effects of Pinus sylvestris var. mongolica afforestation on soil phosphorus status of the Keerqin Sandy Lands in China

Cited by 60 publications

References 37 publications

Effects of soil stoichiometry of the CaCO3/available phosphorus ratio on plant density in Artemisia ordosica communities

Effects of soil stoichiometry of the CaCO3/available phosphorus ratio on plant density in Artemisia ordosica communities

A global meta‐analysis of soil exchangeable cations, pH, carbon, and nitrogen with afforestation

Experimental Manipulation of Precipitation Affects Soil Nitrogen Availability in Semiarid Mongolian Pine (Pinus sylvestris var. mongolica) Plantation

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