Effects of Shallow-deep Drainage Ditch on Soil Chemical Properties and Soil Enzyme Activities in Sanhu Farm

Long-term afforestation strongly changes the soil’s physicochemical and biological properties. However, the underlying mechanism of different tree species driving change in soil nutrients is still unclear in the long-term dryland plantations of the Loess Plateau, China. In this study, samples of surface soil (0–20 cm) and woody litter were collected from five plantations (≥50 years) of Caragana korshinskii, Armeniaca sibirica, Populus hopeiensis, Platycladus orientalis, and Pinus tabulaeformis and a natural grassland, and tested for the carbon, nitrogen, phosphorus, and potassium contents, as well as the soil sucrase (SC), urease (UE), and alkaline phosphorus (ALP) activities. We found that soil nutrients, enzyme activities, and the litter’s chemical properties obviously varied among five tree species. C. korshinskii significantly increased the soil’s TC, organic carbon (OC), total nitrogen (TN), available nitrogen (AN), and available potassium (AK) by 28.42%, 56.08%, 57.41%, 107.25%, and 10.29%, respectively, and also increased the soil’s available phosphorus (AP) by 18.56%; while P. orientalis significantly decreased soil TN (38.89%), TP (30.58%), AP (76.39%), TK (8.25%), and AK (8.33%), and also decreased soil OC (18.01%) and AN (1.09%), compared with those in grassland. The C. korshinskii plantation had higher quality litter and soil enzyme activities than the P. orientalis plantation. Moreover, 62.2% of the total variation in soil nutrients was explained by the litter’s chemical properties and soil enzyme activities, and the litter phosphorus (LP) and soil ALP had a more significant and positive impact on soil nutrients. Therefore, tree species, LP, and soil ALP were key factors driving soil nutrient succession in dryland plantations. The significantly positive nitrogen–phosphorus coupling relationship in the “litter–enzyme–soil” system revealed that the improving nitrogen level promoted the phosphorus cycle of the plantation ecosystem. Our results suggest that leguminous tree species are more suitable for dryland afforestation through the regulation of litter quality and soil enzyme activities.

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Tillage and Rice Straw Management Affect Soil Enzyme Activities and Chemical Properties after Three Years of Conservation Agriculture Based Rice-wheat System in North-Western India

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2017/33494 ◽

2017 ◽

Vol 15 (6) ◽

pp. 1-13

Author(s):

Sushil Kharia ◽

H Thind ◽

Sandeep Sharma ◽

H Sidhu ◽

M Jat ◽

...

Keyword(s):

Rice Straw ◽

Enzyme Activities ◽

Chemical Properties ◽

Conservation Agriculture ◽

Soil Enzyme ◽

Western India ◽

Soil Enzyme Activities ◽

Straw Management ◽

North Western ◽

And Chemical Properties

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Silicon Application Modulates the Growth, Rhizosphere Soil Characteristics, and Bacterial Community Structure in Sugarcane

Frontiers in Plant Science ◽

10.3389/fpls.2021.710139 ◽

2021 ◽

Vol 12 ◽

Author(s):

Quanqing Deng ◽

Taobing Yu ◽

Zhen Zeng ◽

Umair Ashraf ◽

Qihan Shi ◽

...

Keyword(s):

Community Structure ◽

Bacterial Community ◽

Enzyme Activities ◽

Bacterial Community Structure ◽

Rhizosphere Soil ◽

Chemical Properties ◽

Soil Enzyme ◽

Community Diversity ◽

Soil Enzyme Activities ◽

And Chemical Properties

Silicon (Si) deficiency, caused by acidic soil and rainy climate, is a major constraint for sugarcane production in southern China. Si application generally improves sugarcane growth; however, there are few studies on the relationships between enhanced plant growth, changes in rhizosphere soil, and bacterial communities. A field experiment was conducted to measure sugarcane agronomic traits, plant nutrient contents, rhizosphere soil enzyme activities and chemical properties, and the rhizosphere bacterial community diversity and structure of three predominant sugarcane varieties under two Si treatments, i.e., 0 and 200 kg of silicon dioxide (SiO2) ha−1 regarded as Si0 and Si200, respectively. Results showed that Si application substantially improved the sugarcane stalk fresh weight and Si, phosphorus (P), and potassium (K) contents comparing to Si0, and had an obvious impact on rhizosphere soil pH, available Si (ASi), available P (AP), available K (AK), total phosphorus (TP), and the activity of acid phosphatase. Furthermore, the relative abundances of Proteobacteria showed a remarkable increase in Si200, which may be the dominant group in sugarcane growth under Si application. Interestingly, the AP was noticed as a major factor that caused bacterial community structure differences between the two Si treatments according to canonical correspondence analysis (CCA). In addition, the association network analysis indicated that Si application enriched the rhizosphere bacterial network, which could be beneficial to sugarcane growth. Overall, appropriate Si application, i.e., 200 kg SiO2 ha−1 promoted sugarcane growth, changed rhizosphere soil enzyme activities and chemical properties, and bacterial community structures.

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Soil Enzyme Activities and Their Relationship with Soil Physico-Chemical Properties and Oxide Minerals in Coastal Agroecosystem of Puducherry

Geomicrobiology Journal ◽

10.1080/01490451.2019.1570396 ◽

2019 ◽

Vol 36 (5) ◽

pp. 452-459 ◽

Cited By ~ 1

Author(s):

M. Sudhakaran ◽

D. Ramamoorthy ◽

V. Savitha ◽

N. Kirubakaran

Keyword(s):

Enzyme Activities ◽

Chemical Properties ◽

Soil Enzyme ◽

Soil Enzyme Activities ◽

Physico Chemical ◽

Oxide Minerals

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Effects of catch crops cultivated for green manure and mineral nitrogen fertilization on soil enzyme activities and chemical properties

Geoderma ◽

10.1016/j.geoderma.2012.04.018 ◽

2012 ◽

Vol 189-190 ◽

pp. 72-80 ◽

Cited By ~ 51

Author(s):

Anna Piotrowska ◽

Edward Wilczewski

Keyword(s):

Nitrogen Fertilization ◽

Enzyme Activities ◽

Green Manure ◽

Chemical Properties ◽

Soil Enzyme ◽

Mineral Nitrogen ◽

Soil Enzyme Activities ◽

Catch Crops ◽

And Chemical Properties

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Seasonal Change of the Soil Physical, Chemical and Biological Properties of the VGCG Slope

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.599.32 ◽

2012 ◽

Vol 599 ◽

pp. 32-35

Author(s):

Zi Chao Zhao ◽

Zhen Yao Xia ◽

Ming Yi Li ◽

Bin Wu ◽

Wen Nian Xu

Keyword(s):

Seasonal Change ◽

Enzyme Activities ◽

Chemical Properties ◽

Biological Properties ◽

Soil Enzyme ◽

Soil Enzyme Activities ◽

Physical Chemical ◽

Different Seasons ◽

One Year ◽

Physical And Chemical

Taked an repaired completed slope - Vegetation-Growing Concrete Gunning (VGCG) slope for the experimental plot to measured indicators could evaluate the physical, chemical and biological properties.It showed that there were significantly difference in SBD, PH, SOM, AN. AP. AP and AK in different seasons, but no law. And there were significantly difference in soil enzyme activities except catalase in different seasons. Soil enzyme activities were highest in summer, lowest in winter except catalase. It showed that enzyme activitiy roses at first in the lower from spring to winter in one year. It proved that there were ruleless in seasonal change of the soil physical and chemical properties and there was a certain rule in seasonal change of the soil biological properties of the VGCG slope in one year.

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