Response of soil physical, chemical and microbial biomass properties to land use changes in fixed desertified land

Qi, Yanbing; Chen, Tao; Pu, Jie; Yang, Fengqun; Shukla, Manoj K.; Chang, Qingrui

doi:10.1016/j.catena.2017.10.007

Cited by 72 publications

(43 citation statements)

References 43 publications

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“…These results are directly related to the quantity of CF in the substrate mixture, which is inversely related to BD, as an increasing quantity of CF is associated with greater OM content. These findings coincide with those reported by Qi et al (2018), who found that organic substrates favor the generation of organic compounds by roots, which help to form soil aggregates, reduce BD, and increase P. In the case of PC, an increase in P was found between PC-3 and PC-4 in 40V60CF and 60V40CF. In the control, P was similar across the PCs (p < 0.05).…”

Section: Porositysupporting

confidence: 91%

“…These findings coincide with those reported by Qi et al. (2018), who found that organic substrates favor the generation of organic compounds by roots, which help to form soil aggregates, reduce BD, and increase P. In the case of PC, an increase in P was found between PC‐3 and PC‐4 in 40V60CF and 60V40CF. In the control, P was similar across the PCs ( p < 0.05).…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of physicochemical properties and enzymatic activity of organic substrates during four crop cycles in soilless containers

Guerra

Sanjuán

López

2018

Food Science & Nutrition

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BackgroundOrganic soilless production in containers requires substrates with appropriate physicochemical and biological properties to ensure that production is sustainable and profitable for several production cycles. The main objective of this study was to comprehensively evaluate these properties in three different mixtures of organic substrates (vermicompost [V] and coconut fibers [CF] in ratios 20V80CF, 40V60CF, 60V40CF) for four horticultural crop production cycles (PCs) using vermicompost tea (VT) as the main source of nutrients.ResultsReadily available water (25%) in the control treatment (20V80CF) was below the recommended limit, and dry bulk density (>450 g/L) surpassed the recommended limit in the 60V40CF treatment (p < 0.05). In terms of chemical properties, cations and anions in the saturated media extract decreased significantly to values below established optimal conditions. Furthermore, the substrates presented high enzymatic activity in successive production cycles (p < 0.05), including dehydrogenase (350–400 μg TFF g−1), acid phosphatase (4,700 μg p‐nitrophenol g−1 soil hr−1), and β‐glucosidase (1,200 μg p‐nitrophenol g−1 soil hr−1) activity during transformation from organic matter to inorganic compounds.ConclusionThe 40V60CF treatment presents adequate physicochemical and biological characteristics for reuse for more than four growing cycles when organic supplements are administered.

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Section: Porositysupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Evaluation of physicochemical properties and enzymatic activity of organic substrates during four crop cycles in soilless containers

Guerra

Sanjuán

López

2018

Food Science & Nutrition

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“…Trees along with the cultural practices may alter the soil environment by influencing the microclimate and detritus production (Montagnini, Ramstad, & Sancho, ; Bargali et al, ), reallocating nutrients (Hadgu, Kooistra, Rossing, & Van Bruggen, ), and promoting N 2 fixation (Gonzalez‐Quinones et al, ) and soil invertebrate populations (Pant et al, ) and by physico‐chemical properties (Lal, ). Many soil characteristics alter with land use patterns (Bangrooa, Najara, & Rasoolb, ; Oyedele, Olayungbo, Denton, Ogunrewo, & Momodu, ; Qi et al, ; Townsend, Vitousek, & Trumbore, ) and management regimes. The moisture and WHC mainly depend on the soil texture (Chau, Bagtzoglou, & Willig, ).…”

Section: Discussionmentioning

confidence: 99%

Effects of tree fostering on soil health and microbial biomass under different land use systems in the Central Himalayas

2019

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This study evaluated the impact of predominant land uses on the physico‐chemical and biological properties of soils along an altitudinal gradient in Indian Central Himalaya to enhance the scientific knowledge and identify suitable land use pattern. Soil samples were collected from six predominant agricultural land uses including (a) open cropland, (b) cropland with multiple tree species (C + mT), (c) cropland with single tree species, (d) crop near rhizosphere of trees, (e) home gardens (HGs), and (f) agriculturally discarded land (ADL). The physico‐chemical properties showed the significant differences with land use systems and altitude. Soil texture varied from sandy loam to clayey loam with altitude. The minimum bulk density and higher porosity were recorded for the HG system whereas water holding capacity, moisture, pH, C, oil carbon stock, N, soil nitrogen stock, and P in the C + mT system. Soil microbial biomass carbon (16–397 μg g−1) and soil microbial biomass nitrogen (28–68 μg g−1) were significantly higher in C + mT and lowest under open cropland. The highest microbial biomass was recorded in the lower altitudinal region of Tarai, and the lowest was recorded in the higher altitudinal region. Across the seasons, soil microbial biomass was maximum during the rainy season and minimum during the winter season. Interestingly, ADL also showed significant contribution in soil microbial biomass carbon and soil microbial biomass nitrogen and could be used for crop production in the future. This study concludes that good soil health, higher amount of microbial biomass, and better soil qualities occurred in tree planted soils than in open crop lands, mainly attributed to the greater availability of organic matter, litter diversity, and fine roots.

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“…The ultimate goal of restoration is to create a self-supporting ecosystem that is resilient to perturbation without further assistance (Ruiz-Jaen & Aide, 2005; Urbanska, Webb, & Edwards, 1997). Although many studies have emphasized the importance of evaluating restoration success in desertified ecosystems, a number of authors have suggested that it can be evaluated by monitoring changes in vegetation community characteristics, species diversity, or ecosystem processes (Ruiz-Jaen & Aide, 2005), paying special attention to the physical, chemical, and biological soil properties (Jiao, Wen, & An, 2011;Qi et al, 2018;van Leeuwen et al, 2017). Based on the results of the PCA, it is apparent that the improvement of the soil physicochemical and biochemical properties in both soil layers was maximized after 5 years of planting R. kirilowii instead of S. cupularis or K. rigidula.…”

Section: Effects Of Different Plant Species On Soil Restoration In mentioning

confidence: 99%

Variation in physicochemical and biochemical soil properties among different plant species treatments early in the restoration of a desertified alpine meadow

Liu

Zeng

et al. 2019

Land Degrad Dev

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Soil nutrients, enzyme activities, and microbial biomass have important significance for biogeochemical cycles and are affected by vegetation restoration in degradation ecosystems. To explore the effects of replanting different plant species on soil restoration in a desertified alpine meadow on the eastern Tibetan Plateau and to optimize the restoration process with locally appropriate plant species, the soil physicochemical and biochemical properties were measured beneath the plant species Rhodiola kirilowii, Salix cupularis, and Kengyilia rigidula over two periods of vegetative growth (2 years and 5 years). The results showed that all the soil properties significantly improved over the recovery periods (p < .001) and the plant species significantly affected the patterns of soil bulk density, available resources, and biochemical properties (p < .05). However, R. kirilowii improved soil properties most significantly among the three plant species as the recovery time elapsed, and these improvements were strongly related to the greatest fresh vegetation biomass and coverage. Furthermore, R. kirilowii enhanced microbial biomass phosphorus even more, which is an important available phosphorus stock in the soil, and more effectively promoted the development of soil fungi than the two other species. Therefore, we suggest that R. kirilowii is the preferred species of the three to expedite the recovery of desertified alpine soil, and that the appropriate addition of P fertilizer and propelling the development of specific fungi groups in the soil are key to soil restoration in the desertified alpine meadow.

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Response of soil physical, chemical and microbial biomass properties to land use changes in fixed desertified land

Cited by 72 publications

References 43 publications

Evaluation of physicochemical properties and enzymatic activity of organic substrates during four crop cycles in soilless containers

Evaluation of physicochemical properties and enzymatic activity of organic substrates during four crop cycles in soilless containers

Effects of tree fostering on soil health and microbial biomass under different land use systems in the Central Himalayas

Variation in physicochemical and biochemical soil properties among different plant species treatments early in the restoration of a desertified alpine meadow

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