Effects of sulfuric, nitric, and mixed acid rain on Chinese fir sapling growth in Southern China

Liu, Xin; Fu, Zhiyuan; Zhang, Bo; Zhai, Lu; Meng, Miaojing; Lin, Jie; Zhuang, Jiayao; Wang, G. Geoff; Zhang, Jinchi

doi:10.1016/j.ecoenv.2018.04.071

Cited by 74 publications

(34 citation statements)

References 36 publications

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“…Then, the leaves were adapted to 800 µmol m −2 s −1 light, and steady state of florescence (F'), maximum florescence (F m '), and actual quantum yield of PSII photochemistry (φ PSII ) were recorded. The data obtained were used to calculate the maximum efficiency of PSII (F v /F m ) and quantum yield of non-photochemical quenching (NPQ) [17]. Photosynthetic pigments, including chlorophyll a (Chl a), chlorophyll b (Chl b), and carotenoid (Car), were extracted using 0.2 g of fresh leaves in 25 mL of 80% acetone, and the absorbance of the extracts was determined at 663, 645, and 470 nm, respectively [18].…”

Section: Leaf Photosynthesis Photosynthetic Pigments and Chlorophylmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi on Growth, Photosynthesis, and Nutrient Uptake of Zelkova serrata (Thunb.) Makino Seedlings under Salt Stress

Wang

Ren

et al. 2019

Forests

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Salinity is the primary restriction factor for vegetation conservation and the rehabilitation of coastal areas in Eastern China. Arbuscular mycorrhizal fungi (AMF) have been proved to have the ability to alleviate salt stress in plants. However, the role of AMF in relieving salt stress among indigenous trees species is less well known, limiting the application of AMF in the afforestation of local area. In this study, a salt-stress pot experiment was conducted to evaluate the effects of AMF on Zelkova serrata (Thunb.) Makino, a tree species with significant potential for afforestation of coastal area. The Z. serrata seedlings inoculated with three AMF strains (Funneliformis mosseae 1, Funneliformis mosseae 2, and Diversispora tortuosa) were subjected to two salt treatments (0 and 100 mM NaCl) under greenhouse conditions. The results showed that the three AMF strains had positive effects, to a certain extent, on plant growth and photosynthesis under normal condition. However, only F. mosseae 1 and F. mosseae 2 alleviated the inhibition of growth, photosynthesis, and nutrient uptake of Z. serrata seedlings under salt stress. The two AMF strains mitigated salt-induced adverse effects on seedlings mainly by increasing the leaf photosynthetic ability and biomass accumulation by reducing Na+ content, increasing P, K+, and Mg2+ content, as well as by enhancing photosynthetic pigments content and the stomatal conductance of leaves. These results indicated that AMF inoculation is a promising strategy for the afforestation of coastal areas in Eastern China.

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Section: Leaf Photosynthesis Photosynthetic Pigments and Chlorophylmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi on Growth, Photosynthesis, and Nutrient Uptake of Zelkova serrata (Thunb.) Makino Seedlings under Salt Stress

Wang

Ren

et al. 2019

Forests

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“…A low pH will lead to an increase of exchangeable acid and aluminum in the soil, which can inhibit the absorption, assimilation, and transfer of nitrogen and potassium of plants. Thus, the acidification injury of plants can easily occur [26][27][28]. In this study, we found that the soil pH was very low and the variation was small (H e = 0.19), indicating that the soil of Chinese fir plantations in southern China is generally strongly acidic.…”

Section: Discussionmentioning

confidence: 65%

Application of Cloud Model to Evaluation of Forest Soil Fertility: A Case in Chinese Fir Plantations in Southern China

et al. 2019

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Soil nutrients are of great significance for maintaining forest growth and ensuring land productivity. A comprehensive scientific evaluation of soil fertility is helpful for sustainable forest management. There are many uncertainties in traditional evaluation methods, that is fuzziness and randomness, which often lead to a large deviation of the evaluation results. In order to comprehensively consider the fuzziness and randomness of soil fertility evaluation, the cloud model was introduced to evaluate the soil fertility of Chinese fir plantations. The cloud model is an uncertain transformation model which can combine a qualitative description with a quantitative calculation as well as reflect the randomness and fuzziness of the principle. It is an effective tool for realizing qualitative and quantitative conversion. The accuracy of the model was evaluated with the Namerow integrated index method, and the results were compared with previous studies. The results showed that the soil fertility was grade II (Ex = 0.653), medium; soil pH was grade II (Ex = 4.59), strongly acidic; soil organic matter (OM) was grade V (Ex = 33.40), rich; total nitrogen (TN) was grade V (Ex = 1.53), rich; total phosphorus (TP) was grade III (Ex = 0.49), poor; total potassium (TK) was grade IV (Ex = 17.10), medium; available nitrogen (AN) was grade V (Ex = 128.30), rich; available phosphorus (AP) was grade II (Ex = 4.10), very poor; and available potassium (AK) was grade III (Ex = 52.73), poor. The degree of artificial influence of soil nutrients in Chinese fir plantations was ranked AN > AK > OM > TK > pH > TN > TP = AP. The soil fertility of the Chinese fir plantation was comprehensively evaluated by the cloud model and the evaluation results were unbiased and reliable. This method makes up for the shortcomings of traditional methods and provides new ideas for soil fertility evaluation. We suggest that this cloud model could be extended to other regions in the future and hope that there will be an article to compare several different statistical techniques.

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“…Because POLY4 is richer in Ca, Mg, and S than SOP at the rate of 180 K 2 O ha -1 , POLY4 increased the contents of exchangeable Ca and available S in soil in 2016 and 2017 compared with SOP and also that of exchangeable Mg in the 3 yr examined. Available S in soil was at high level and increased with time, which was attributed to serious acid rain in the study area (Liu et al, 2018). The K in POLY4 was readily available to tea plants as it is in SOP, as shown by the lack of difference in soil available K concentration in the experiment.…”

Section: Discussionmentioning

confidence: 83%

Changes in Tea Performance and Soil Properties after Three Years of Polyhalite Application

Zhou

Chen

et al. 2019

Agronomy Journal

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Tea (Camellia sinensis L.) is the world's most widely consumed beverage with high economic and health benefits. Potassium is the second key nutrient for tea plants. Polyhalite is applied in some grain crops as a novel source of K, which also contains Ca, Mg, and S. However, the feasibility of using polyhalite for tea growth is unclear. Consequently, a 3-yr field experiment was conducted to determine effects of polyhalite on soil properties, tea yield, economic benefits, and tea quality in southwest China. There were three treatments: control (CK, without K fertilizer), sulfate of potash (SOP) and polyhalite (POLY4). Compared with CK, SOP and POLY4 application increased soil available K, P, and S contents, as well as tea yields and economic benefits. Compared with SOP, POLY4 increased soil exchangeable Ca and Mg and available S contents, but decreased soil acidification due to high addition of CaSO 4 and MgSO 4. POLY4 application led to 15.1% higher tea yield than SOP in 2017, while no difference was observed in 2015 and 2016. The POLY4 was economically superior to SOP in 2017 with a greater net benefit by US$1982 ha-1. Although the two treatments did not differ on tea quality, correlation analysis demonstrated that quality was generally positively and significantly correlated with K, Ca, Mg, P, and S contents in tea leaves. Consequently, POLY4 was suitable as a K source for tea. Given high S and Ca contents in POLY4, it might be better to apply POLY4 together with other K fertilizers in future studies. core Ideas • Application of polyhalite increased tea yield and economic benefits. • Polyhalite application showed no adverse effects on tea quality. • Soil acidification was significantly reduced with polyhalite. • Polyhalite would be widely used as a novel potassium fertilizer in tea plantations.

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Effects of sulfuric, nitric, and mixed acid rain on Chinese fir sapling growth in Southern China

Cited by 74 publications

References 36 publications

Effects of Arbuscular Mycorrhizal Fungi on Growth, Photosynthesis, and Nutrient Uptake of Zelkova serrata (Thunb.) Makino Seedlings under Salt Stress

Effects of Arbuscular Mycorrhizal Fungi on Growth, Photosynthesis, and Nutrient Uptake of Zelkova serrata (Thunb.) Makino Seedlings under Salt Stress

Application of Cloud Model to Evaluation of Forest Soil Fertility: A Case in Chinese Fir Plantations in Southern China

Changes in Tea Performance and Soil Properties after Three Years of Polyhalite Application

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