Soil pH, organic matter, and nutrient content change with the continuous cropping of Cunninghamia lanceolata plantations in South China

Yu, Yuanchun; Yang, Jingyu; Zeng, Shaohua; Wu, Daoming; Jacobs, Douglass F.; Sloan, Joshua L.

doi:10.1007/s11368-016-1472-8

Cited by 49 publications

(32 citation statements)

References 30 publications

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“…This trend was in line with the results of Wang et al and Wei et al who reported similar results from 7 to 49 years and from 10 to 37 years in Chinese fir plantations, respectively [21,37], but inconsistent with many studies on Chinese fir. For example, Wang et al and Yu et al found continuous increases of SOC concentrations from 6 to 31 years and from 18 to 49 years, respectively [11,18]; Chen et al reported a consistent decrease in SOC contents from 2 to 40 years [38]. In our study, TN contents showed a similar trend as SOC but was not significant among stand ages.…”

Section: Effect Of Stand Age On Soil Physicochemical Propertiessupporting

confidence: 64%

“…Studies have shown relationships between tree age and soil properties of Chinese fir, but the results varied with studies. Yu et al reported that soil organic carbon (SOC) contents generally increased from 6-year to 31-year plantations [18]; Li et al found that soil fertility decreased from 5year to 15-year stands and then increased in 25-year stands [19]. Most studies found that microbial biomass first decreased and then increased with tree age [20,21], but an overall increasing trend [22] or a consistently decreasing tendency [23] were also detected.…”

Section: Introductionmentioning

confidence: 99%

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Prolonging Rotation of Chinese Fir to over 25 Years Could Maintain a Better Soil Status in Subtropical China

Miao

Kang

et al. 2019

Forests

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Although Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is an important species for wood production in subtropical China, it serious declines in soil nutrients and timber productivity in plantations have been reported, probably caused by successive rotation and inappropriate cutting time. Although the significant effect of stand age on soil properties has been widely recognized, research on soil enzymes and microbial communities is relatively rare. In this study, assuming that short rotation period is one important reason for soil degradation, we measured soil physicochemical properties, microbial community composition, and enzyme activity in 3-, 15-, 25- and 45-year Chinese fir forests in Jiangxi province of China. Soil organic carbon (SOC) content decreased from 3-year to 25-year stands and then increased in 45-year stands. Despite the significant relationship between SOC and the abundance of total phospholipid fatty acids (PLFAs), no notable changes in the abundance of PLFAs were detected with increasing tree ages, except for the abundances of arbuscular mycorrhizal fungi (AMF) which were significantly higher in 25-year stands. However, the ratios of gram-positive to gram-negative bacteria (G+/G−) and fungi to bacteria (F/B) both decreased with increasing stand age. 45-year stands showed the highest activities of both phosphatase and β-glucosidase. Total potassium (TK) content and net N mineralization rate both had significant links with soil microbial community structure. Collectively, our study emphasized that stand age could significantly affect soil physicochemical properties and the microbial community. In general, 25-year stands showed poorer soil status compared to that of 45-year stands. Thus, the cutting age of Chinese fir should be increased to over 25 years to maintain a better soil status.

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Section: Effect Of Stand Age On Soil Physicochemical Propertiessupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Prolonging Rotation of Chinese Fir to over 25 Years Could Maintain a Better Soil Status in Subtropical China

Miao

Kang

et al. 2019

Forests

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“…Hook.) is a fast-growing dominant conifer tree species in subtropical China [29,30]. Due to the high quality of timber, this species plays an important role in terms of timber supply-multiple forest by-products for human society.…”

Section: Introductionmentioning

confidence: 99%

Monthly Radial Growth Model of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.), and the Relationships between Radial Increment and Climate Factors

Huang

Deng

Zhao

et al. 2019

Forests

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Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is the most commonly grown afforestation species in subtropical China. It is essential that we understand the response of radial tree growth to climate factors, yet most experiments have been conducted based on total annual growth and not on monthly dynamics, which alone can detail the influence of climatic factors. In this study, we aimed to: (i) construct a monthly growth model and compare the growth rate of different social statuses of trees, and (ii) determine the response of radial increments of different social statuses to climate factors. The radial growth was monitored monthly during four years using manual band dendrometers (MBD). The data were fitted using the Gompertz function. Within-stand differences in the social status of Chinese firs resulted in growing period and growth rate length variations. The radial growth began in March, and suppressed trees—especially groups of AS1 and BS1 (suppressed trees of classes I in sites A and B)—stopped in September, whereas dominant and intermediate trees were delayed and stopped in November. The periodic monthly increment curve showed double peaks, and the maximum growth rate occurred in April and August. The peak values were affected by social status, which showed that dominant trees had the greatest radial growth rates. S-shaped Gompertz meant that monthly increment models were successfully fitted to our data, which explained more than 98% of the variation in increment data and passed the uncertainty test. Temperature and precipitation had a significant influence on radial growth, and the correlation between radial growth and air temperature was the highest. Our results also revealed that temperatures explain the double-peak features of Chinese fir. The limiting factors of radial growth changed with the seasons and were mainly affected by temperature and precipitation, which should be considered in predicting the response of tree growth to climate change.

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“…The reduction of plantation productivity in successive rotations appears to be related to losses in soil organic matter and nutrients (Zhang et al 2004). Conversely, Yu et al (2017) report in this SI that soil organic matter content increased after replanting Chinese fir forests, which suggests that replanting rotations may have a varied impact on soil organic matter in forest plantations.…”

mentioning

confidence: 65%

Preface to the special issue for the 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change

et al. 2017

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Soil pH, organic matter, and nutrient content change with the continuous cropping of Cunninghamia lanceolata plantations in South China

Cited by 49 publications

References 30 publications

Prolonging Rotation of Chinese Fir to over 25 Years Could Maintain a Better Soil Status in Subtropical China

Prolonging Rotation of Chinese Fir to over 25 Years Could Maintain a Better Soil Status in Subtropical China

Monthly Radial Growth Model of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.), and the Relationships between Radial Increment and Climate Factors

Preface to the special issue for the 8th International Symposium on Forest Soils: Linking Soil Processes to Forest Productivity and Water Protection under Global Change

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