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138 results on '"Lin, Yongbiao"'

16. Long‐term effects of intercropping on multi‐trophic structure and bio‐thermodynamic health of mixed Eucalyptus‐native tree plantations.

Author

Wang, Yanjia, Lin, Yongbiao, Zhang, Lei, Liu, Siyu, Wang, Jun, Tian, Yang, Campbell, Daniel E., Lin, Ruoyi, Ren, Hai, and Lu, Hongfang

Subjects
*EUCALYPTUS, *PLANTATIONS, *INTERCROPPING, *CATCH crops, *TREES, *SOIL fertility, *ENVIRONMENTAL degradation, *SOIL microbiology
Abstract

The intercropping approach of Eucalyptus and native trees has been widely recommended, as an ideal replacement for monoculture Eucalyptus plantations (EUs), to ameliorate global biodiversity loss and mitigate environmental change. However, both suitable native tree species (NS) and the best intercropping ratio between Eucalyptus and native trees have not been determined.To fill this gap, a four‐level intercropping gradient of Eucalyptus urophylla planted with eight NS was set up (i.e., 20%NS, 30%NS, 40%NS, 50%NS), monitored and compared with a monoculture E. urophylla plantation (EU) and a randomly mixed plantation of nine NS in southern China.The results showed that, the intercropping ratio of Eucalyptus and native trees had a long‐term effect on tree layer structure and health status, and a cascading effect on the thermodynamic health state of soil microbes. Shade‐tolerant woody species are more suitable for intercropping with Eucalyptus. Intercropping plantations with not less than 30% native trees were more favourable for long‐term survival and growth of both planted Eucalyptus and native trees, and provided much more favourable conditions for the natural immigration of other native trees, which leads to a healthy plant community with significantly higher eco‐exergy than EU. The initial mixing ratio between Eucalyptus and high diversity native trees affected soil fertility through its long‐term effects on the biodiversity and bio‐thermodynamic state of trees and soil microbes.Synthesis and applications. Our results highlight the long‐term positive effect of the intercropping ratio of Eucalyptus and high diversity native trees on multi‐trophic biodiversity conservation, bio‐thermodynamic health development and soil fertility conservation. In the conversion of monoculture EUs to multi‐species plantations, it is recommended to mix more than 30% NS, which have different ecological niches with Eucalyptus. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Mixed-Species Acacia Plantation Decreases Soil Organic Carbon and Total Nitrogen Concentrations but Favors Species Regeneration and Tree Growth over Monoculture: A Thirty-Three-Year Field Experiment in Southern China

Author

Ouyang, Shengnan, primary, Tie, Liehua, additional, Rao, Xingquan, additional, Cai, Xi’an, additional, Liu, Suping, additional, Vitali, Valentina, additional, Wei, Lanying, additional, Yu, Qingshui, additional, Sun, Dan, additional, Lin, Yongbiao, additional, Bose, Arun K., additional, Gessler, Arthur, additional, and Shen, Weijun, additional

Published
2023
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36. Dynamics of community structure and bio-thermodynamic health of soil organisms following subtropical forest succession

Author

Daniel E. Campbell, Hongyue Cai, Jun Wang, Hai Ren, Hongfang Lu, and Lin Yongbiao

Subjects
China, Environmental Engineering, Soil biology, 0208 environmental biotechnology, 02 engineering and technology, Ecological succession, Forests, 010501 environmental sciences, Management, Monitoring, Policy and Law, 01 natural sciences, Trees, Soil, Soil pH, Ecosystem, Biomass, Tropical and subtropical moist broadleaf forests, Waste Management and Disposal, Soil Microbiology, 0105 earth and related environmental sciences, Biomass (ecology), Ecology, Community structure, General Medicine, Evergreen, 020801 environmental engineering, Thermodynamics, Environmental science
Abstract

Soil organisms play essential roles in maintaining multiple ecosystem processes, but our understanding of the dynamics of these communities during forest succession remains limited. In this study, the dynamics of soil organism communities were measured along a 3-step succession sequence of subtropical forests (i.e., a conifer forest, CF; a mixed conifer and broad-leaved forest, MF; and a monsoon evergreen broad-leaved forest, BF). The eco-exergy evaluation method was used as a complement to the classic community structure index system to reveal the holistic dynamics of the bio-thermodynamic health of soil organism communities in a forest succession series. Association between the self-organization of soil organisms, soil properties, and plant factors were explored through redundancy analyses (RDA). The results indicated that the biomass of soil microbes progressively increased in the dry season, from 0.75 g m−2 in CF to 1.75 g m−2 in BF. Microbial eco-exergy showed a similar pattern, while the community structure and the specific eco-exergy remained constant. Different trends for the seasons were observed for the soil fauna community, where the community biomass increased from 0.72 g m−2 to over 1.97 g m−2 in the dry season, but decreased from 3.94 g m−2 to 2.36 g m−2 in the wet season. Faunal eco-exergies followed a similar pattern. Consequently, the average annual biomass of the soil faunal community remained constant (2.17–2.39 g m−2) along the forest succession sequence, while the significant seasonal differences in both faunal biomass and eco-exergy observed at the early successional stage (CF) were insignificant in the middle and late forest successional stages (MF and BF). Both the dynamics of soil microbes and soil fauna were tightly correlated with tree biomass and with soil physicochemical properties, especially soil pH, moisture, total nitrogen, nitrate nitrogen, and organic matter content.

Published
2021
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37. An alternative approach to reduce algorithm‐derived biases in monitoring soil organic carbon changes

Author

Zhang, Weixin, primary, Chen, Yuanqi, additional, Shi, Leilei, additional, Wang, Xiaoli, additional, Liu, Yongwen, additional, Mao, Rong, additional, Rao, Xingquan, additional, Lin, Yongbiao, additional, Shao, Yuanhu, additional, Li, Xiaobo, additional, Zhao, Cancan, additional, Liu, Shengjie, additional, Piao, Shilong, additional, Zhu, Weixing, additional, Zou, Xiaoming, additional, and Fu, Shenglei, additional

Published
2019
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40. Effects of canopy and understory nitrogen addition on the structure and eco-exergy of a subtropical forest community

Author

Jun Wang, Hongfang Lu, Yang Tian, Shuguang Jian, Daniel E. Campbell, and Lin Yongbiao

Subjects
0106 biological sciences, Canopy, Ecology, General Decision Sciences, Plant community, Understory, 010501 environmental sciences, 010603 evolutionary biology, 01 natural sciences, Evergreen forest, Species evenness, Environmental science, Species richness, Interception, Tropical and subtropical moist broadleaf forests, Ecology, Evolution, Behavior and Systematics, 0105 earth and related environmental sciences
Abstract

The health of plant communities has been severely threatened by nitrogen (N) deposition across all types of ecosystems. The effect of N deposition on the structure of forest communities (as measured by the Shannon Wiener index, evenness, richness, density and biomass) has been investigated extensively, mostly through understory N-addition experiments, which has been criticized for neglecting the function of the canopy in interception, up-take and transformation of N, as well as other elements. To clarify this problem, the effects of canopy and understory N-addition on subtropical evergreen forest community structure were quantified and compared in this study. Furthermore, a bio-thermodynamic measurement, eco-exergy, was applied as a complement to the classic community structure index system to evaluate the health status of forest communities by bringing the genetic information embodied in each species into consideration. The results showed that compared to understory N-addition, richness in the shrub layer was more sensitive to the canopy N-addition. Thus, studies that only consider the effects of N-addition to the understory may underestimate the effects of N-addition on forest communities, as a whole. In this study, even though N-addition to the understory did not alter the forest structure indices (Shannon Wiener index, evenness, richness, density and biomass), significantly, it did decrease the specific eco-exergy of the subtropical, evergreen, forest community, as observed for N-addition to the canopy. The decrease was mainly contributed by the decline in the fraction of higher plants and an increase in the fraction of lower plants within the tree and herb layers. Thus, our results demonstrated that the health status of the subtropical, evergreen, forest community as determined by thermodynamic measures was more sensitive to N-addition compared to the classic community indices mentioned above, and the community structures in both tree and herb layers were also sensitive to N-addition, besides the shrub layer.

Published
2019
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43. Faster carbon accumulation in global forest soils

Author

Zhang, Weixin, primary, Chen, Yuanqi, additional, Shi, Leilei, additional, Wang, Xiaoli, additional, Liu, Yongwen, additional, Rao, Xingquan, additional, Lin, Yongbiao, additional, Shao, Yuanhu, additional, Li, Xiaobo, additional, Liu, Shengjie, additional, Piao, Shilong, additional, Zhu, Weixing, additional, Zou, Xiaoming, additional, and Fu, Shenglei, additional

Published
2017
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46. CAN Canopy Addition of Nitrogen Better Illustrate the Effect of Atmospheric Nitrogen Deposition on Forest Ecosystem?

Author

Zhang, Wei, primary, Shen, Weijun, additional, Zhu, Shidan, additional, Wan, Shiqiang, additional, Luo, Yiqi, additional, Yan, Junhua, additional, Wang, Keya, additional, Liu, Lei, additional, Dai, Huitang, additional, Li, Peixue, additional, Dai, Keyuan, additional, Zhang, Weixin, additional, Liu, Zhanfeng, additional, Wang, Faming, additional, Kuang, Yuanwen, additional, Li, Zhian, additional, Lin, Yongbiao, additional, Rao, Xingquan, additional, Li, Jiong, additional, Zou, Bi, additional, Cai, Xian, additional, Mo, Jiangming, additional, Zhao, Ping, additional, Ye, Qing, additional, Huang, Jianguo, additional, and Fu, Shenglei, additional

Published
2015
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