Assessing soil quality of gleyed paddy soils with different productivities in subtropical China

Zhou, Wei; Li, Shutian; He, Ping; Liang, Guozheng; Lv, Jialong; Jin, Hui

doi:10.1016/j.catena.2015.05.029

Cited by 29 publications

(18 citation statements)

References 51 publications

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“…In recent years, rice straw incorporation has become mandatory because the conventional practice of burning rice straw is banned by law to improve regional air and soil quality, while legume rotation and manure additions are almost dying out in paddy fields because farmers are becoming less willing to carry them out. Despite the contribution of new rice hybrids, PSP is declining gradually 4 .…”

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confidence: 99%

“…Finding an appropriate method for assessing PSP remains a challenge. Numerous methods have been developed to evaluate soil productivity using physical, chemical and biological characteristics of paddy soils 4 5 6 7 8 9 10 11 , with most focusing on soil physical and chemical properties 12 . Bastida et al .…”

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“…They also act as the sink or the source of nutrients available for crop uptake, and thus play important roles in forming soil productivity of agroecosystems. Usually, the PSP (expressed in rice yield) correlates positively with SMB C, SMB N or SMB P 4 11 33 34 , but sometimes does not 35 36 37 . It is thus possible that the individual elemental amounts of soil microbial biomass may not ultimately determine PSP.…”

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Soil microbial C:N ratio is a robust indicator of soil productivity for paddy fields

Shen

et al. 2016

Sci Rep

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Maintaining good soil productivity in rice paddies is important for global food security. Numerous methods have been developed to evaluate paddy soil productivity (PSP), most based on soil physiochemical properties and relatively few on biological indices. Here, we used a long-term dataset from experiments on paddy fields at eight county sites and a short-term dataset from a single field experiment in southern China, and aimed at quantifying relationships between PSP and the ratios of carbon (C) to nutrients (N and P) in soil microbial biomass (SMB). In the long-term dataset, SMB variables generally showed stronger correlations with the relative PSP (rPSP) compared to soil chemical properties. Both correlation and variation partitioning analyses suggested that SMB N, P and C:N ratio were good predictors of rPSP. In the short-term dataset, we found a significant, negative correlation of annual rice yield with SMB C:N (r = −0.99), confirming SMB C:N as a robust indicator for PSP. In treatments of the short-term experiment, soil amendment with biochar lowered SMB C:N and improved PSP, while incorporation of rice straw increased SMB C:N and reduced PSP. We conclude that SMB C:N ratio does not only indicate PSP but also helps to identify management practices that improve PSP.

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Soil microbial C:N ratio is a robust indicator of soil productivity for paddy fields

Shen

et al. 2016

Sci Rep

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“…The large experience accumulated from studies on soil quality assessment has shown the high sensitivity of biological indicators to distinguish differences between several land uses and managements (Aziz et al, 2013;Rousseau et al, 2013;Paz-Kagan et al, 2014;Liu et al, 2015). Cardinale et al (2012) highlight that biological attributes represent ecological processes that promote ES, and the performance of soil ecosystem functions is a result of life-driven relations in the soil system.…”

Section: From Soil Function Indicators To Integrated Methodsmentioning

confidence: 99%

“…In this approach, each soil ecological function is weighed in order to consider its significance to the objective assessed. Currently, in order to establish weights to soil functions in different management contexts, several authors have used statistical analyses to correlate the soil attributes to those of farming systems, as well as the principal component analysis to assess selected soil functions (Velasquez et al, 2007;Paz-Kagan et al, 2014;Liu et al, 2015).…”

Section: From Soil Function Indicators To Integrated Methodsmentioning

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Current overview and potential applications of the soil ecosystem services approach in Brazil

Prado

Fidalgo

Monteiro

et al. 2016

Pesq. agropec. bras.

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-Human pressure on ecosystems has undesirable impacts on human well-being. After the Millennium Project, much interdisciplinary research has been developed worldwide aiming to understand these impacts on ecosystem flows and processes, and to learn about the costs and the benefits of ecosystem services for production. Soil provides many ecosystem services, since its multi-functionality is the basis for food production, water filtration, nutrient cycling, and other goods essential to life. This article presents the main concepts and classifications of soil ecosystem services and of its functions; the indicators and the methods for assessment, modeling, and valuation of ecosystem services; some recent applications to assess and evaluate impacts of agricultural management practices on soil ecosystem services; as well as challenges and opportunities for research and for development of public policies related to agro-environmental sustainability in Brazil. Although the role of soil in supplying ecosystem services is yet undervalued, scientists are gradually recognizing soil processes and functions as fundamental to assess ecosystem services and the effects of land use and management on them. Interdisciplinary approaches to integrate science and public policies are necessary to build governance based on ecosystem services.Index terms: economic valuation, environmental services, soil function, soil indicators, soil management, public policy, soil quality. Panorama atual e potencial de aplicação da abordagem dos serviços ecossistêmicos do solo no BrasilResumo -A pressão humana sobre os serviços ecossistêmicos tem resultado em impactos indesejáveis sobre o bem-estar humano. Com o Projeto Millennium, várias pesquisas interdisciplinares têm sido desenvolvidas em todo o mundo com o objetivo de entender esses impactos sobre os fluxos e os processos dos ecossistemas e internalizar os custos e os benefícios dos serviços ecossistêmicos para a produção. O solo fornece muitos serviços ecossistêmicos, uma vez que sua multifuncionalidade é a base para a produção de alimentos, filtração de água, ciclagem de nutrientes e outros bens essenciais à vida. Este artigo apresenta os principais conceitos e classificações dos serviços ecossistêmicos do solo e de suas funções; os indicadores e os métodos de avaliação, modelagem e valoração dos serviços ecossistêmicos; algumas aplicações recentes para avaliar impactos de práticas de manejo agrícola sobre os serviços ecossistêmicos do solo; bem como os desafios e as oportunidades para a pesquisa e para o desenvolvimento de políticas públicas relacionadas à sustentabilidade agroambiental no Brasil. Apesar de o papel do solo para prestação de serviços ecossistêmicos ainda ser subestimado, os cientistas têm gradualmente reconhecido os processos e as funções do solo como fundamentais para avaliar os serviços ecossistêmicos e os efeitos do uso e manejo da terra sobre eles. Abordagens interdisciplinares que integrem ciência e políticas públicas são necessárias para construir uma governança com...

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Evaluation of indirect and direct scoring methods to relate biochemical soil quality indicators to ecosystem services

Xia

Wander

2022

Soil Science Soc of Amer J

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Soil health assessments use scoring curves to quantify relationships between soil quality indicators (SQIs) and ecosystem services (ESSs). We evaluated methods for scoring curve development using three labile C pools (β-glucosidase [BG], fluorescein diacetate [FDA] hydrolysis, and permanganate oxidizable carbon [POXC]).Concepts and methods for SQI interpretation used by established frameworks were assessed, with 129 studies reporting relationships to either soil organic C (SOC) (n = 367), a common surrogate for indirect estimation of ESSs, or direct measures of crop yield (n = 88), soil respiration (n = 66), and N 2 O and CH 4 emissions (n = 51). Indirect assessment of BG using SOC and site covariates resolved tillage-based differences (P < .05). Correlations between SOC and SQIs observed under different land uses suggested that use of SOC for indirect scoring would be more effective for FDA than POXC. Direct relationships were generally positive between SQIs and yield (89%), soil respiration (89%), and N 2 O and CH 4 emissions (76%), but such relationships could be nonlinear. Direct assessment revealed that both positive and negative ESS outcomes increased with labile C fraction abundance that complicates the assignment of ESS-based SQI scores. Although direct SQI scores are relatively easy to interpret, relationships between scores and SQIs can vary 10-fold for different sites and cropping systems (upland versus rice paddy), which is much greater than treatment-based differences observed within single sites. To quantify relationships between SQIs and ESS outcomes, one must measure influential site covariates (SQI-ESS covariates) along with details about management, sampling, and analysis.

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Assessing soil quality of gleyed paddy soils with different productivities in subtropical China

Cited by 29 publications

References 51 publications

Soil microbial C:N ratio is a robust indicator of soil productivity for paddy fields

Soil microbial C:N ratio is a robust indicator of soil productivity for paddy fields

Current overview and potential applications of the soil ecosystem services approach in Brazil

Evaluation of indirect and direct scoring methods to relate biochemical soil quality indicators to ecosystem services

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