Soil enzymatic factors expressing the influence of land use, tillage system and texture on soil biochemical quality

2000 ◽  
Vol 80 (3) ◽  
pp. 419-428 ◽  
Author(s):  
C. M. Monreal ◽  
D. W. Bergstrom
Keyword(s):  
Land Use ◽  
Enzyme Activity ◽  
Soil Enzymes ◽  
Production Systems ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Tillage System ◽  
C And N ◽  
Biochemical Quality ◽  
The Impact

We identified complexes of soil nutrient mineralising enzymes expressing the influence of land use, tillage system and texture on soil biochemical quality in production systems involving corn, soybean, wheat and oat. The activities of dehydrogenase, β-glucosidase, L-glutaminase, urease, alkaline phosphatase, and arylsulphatase were measured in 760 soil samples taken from the A horizon of uncultivated land and cultivated Gleysols and Luvisols cropped with conventional tillage (CT) and reduced tillage (RT) systems between 1994 and 1996.Discriminant analysis showed that an enzymatic decomposition factor captured 96% of the total dispersion in soil enzyme activity responding to type of land use and tillage system. The soil enzymes β-glucosidase, dehydrogenase and L-glutaminase contributed most to this factor and were sensitive indicators for assessing the health of microbial mineralisation processes of the C and N cycles. Two biochemical factors expressed the influence of texture on soil enzyme activity. The first, a soil organic C and N decomposition factor captured 68% of the dispersion in enzyme activities was influenced mostly by β-glucosidase and dehydrogenase. The second factor, which captured 32% of the dispersion in enzyme activity, was influenced mostly by arylsulphatase and denotes the effects of texture on a pool generally considered to be extracellular in nature. Cluster analysis helped define seven levels of soil enzyme activity ranging from very low (mostly in soils cropped with CT) to very high [mostly in uncultivated (UC) land and soils cropped with RT]. The identification of key enzymatic factors and the definition of seven levels of enzyme activity serve as a basis for developing quantitative systems monitoring the impact of crop production systems on soil enzymes having specific ecological functions in agricultural land. Key words: Soil enzymes, tillage, land use, texture, dehydrogenase, β-glucosidase, glutaminase

Response of soil enzyme activity to warming and nitrogen addition in a meadow steppe

Soil Research ◽  
2015 ◽  
Vol 53 (3) ◽  
pp. 242 ◽  
Author(s):  
Shiwei Gong ◽  
Tao Zhang ◽  
Rui Guo ◽  
Hongbin Cao ◽  
Lianxuan Shi ◽  
...  
Keyword(s):  
Climate Change ◽  
Enzyme Activity ◽  
Phosphatase Activity ◽  
Soil Nutrients ◽  
Soil Enzymes ◽  
Cellulase Activity ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
N Addition ◽  
Soil C

Soil enzymes play vital roles in the decomposition of soil organic matter and soil nutrient mineralisation. The activity of soil enzymes may be influenced by climate change. In the present study we measured soil enzyme activity, soil microclimate and soil nutrients to investigate the response of soil enzyme activity to N addition and experimental warming. Warming enhanced phosphatase activity (35.8%), but inhibited the cellulase activity (30%). N addition significantly enhanced the activities of urease (34.5%) and phosphatase (33.5%), but had no effect on cellulase activity. Significant interactive effects of warming and N addition on soil enzyme activity were observed. In addition, warming reduced soil C (7.2%) and available P (20.5%), whereas N addition increased soil total N (17.3%) and available N (19.8%) but reduced soil C (7.3%), total P (14.9%) and available P (23.5%). Cellulase and phosphatase activity was highly correlated with soil temperature and water content, whereas urease activity was determined primarily by soil N availability. The results show that climate change not only significantly affects soil enzyme activity, but also affects the mineralisation of soil nutrients. These findings suggest that global change may alter grassland ecosystem C, N and P cycling by influencing soil enzyme activity.

Soil enzyme activity under organic versus conventional vegetable production systems

2012 ◽  
Vol 20 (3) ◽  
pp. 279-284
Author(s):  
Jun YE ◽  
Xiao-Li WANG ◽  
Perez Pablo Gonzalez ◽  
Xiao-Song LIU ◽  
Dan-Feng HUANG
Keyword(s):  
Enzyme Activity ◽  
Production Systems ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Vegetable Production

scholarly journals Influence of different rice establishment methods and nutrient levels on soil enzyme activity, nutrient status and grain yield of rice in North Coastal Zone of Andhra Pradesh

2019 ◽  
Vol 56 (4) ◽  
pp. 380-387
Author(s):  
Ch S Rama Lakshmi ◽  
MBGS Kumari ◽  
T Sreelatha ◽  
A Sireesha
Keyword(s):  
Enzyme Activity ◽  
Foliar Spray ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Potassium Nitrate ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Organic Carbon Content ◽  
Available Nitrogen ◽  
The Impact

To enhance productivity, alleviate environmental and management constraints and enhance farmers' income in the rice, new approaches that are labour-saving, more productive and sustainable need to be developed. Experiment was formulated to know the impact/influence of different rice establishment methods and different levels of nitrogen application on soil and crop productivity of rice. Results revealed that, among different rice establishment systems, machine transplanting recorded significantly higher yields followed by SRI method. Lowest yields were recorded in dry seed broadcasting method. With increasing nitrogen levels, yields were increased in all the systems and further enhancement of rice yields were observed with potassium nitrate foliar spray along with chemical fertilizers. Soil enzyme activity particularly urease and dehydrogenase was significantly high under normal planting and SRI method of planting, respectively and lowest enzyme activities were recorded in broadcasting of dry seed. Soil organic carbon content also followed the same trend as like enzyme activity. With regard to soil nutrient status, significant differences were not observed in phosphorus and potassium, however available nitrogen status was increased with increasing fertilizer levels and among different methods, drum seeding recorded highest status (286 kg ha-1).

Effect of Different Land Use Types on Soil Enzyme Activity on the Edge of Ganjiahu Wetland in Xinjiang

2012 ◽  
Vol 500 ◽  
pp. 238-242
Author(s):  
Yan Hong Li ◽  
Xin Zheng Chu
Keyword(s):  
Land Use ◽  
Enzyme Activity ◽  
Enzyme Activities ◽  
Populus Euphratica ◽  
Soil Surface ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Farm Land ◽  
Land Use Types ◽  
Salt Meadow

This paper selected wetland area in Ganjiahu as research area which impacts of human activity was evident and analyzed the soil enzyme activity of each five edge land-use types (reed wetland, salt meadow, Populus euphratica, Haloxylon ammodendro, farm land), results showed that: Under the effects of different land use types, the impact of the enzyme activity causes its surface layer soil to the catalase to be higher, and in the vertical direction, the soil enzyme activity assumes declining trend along with the depth change. It`s the biggest changing scope among each layer of the enzyme activity in the Populus euphratica. Secondly, each layer of the farmland and reed wetland enzyme activity has the sub-change scope. The average value of enzyme activity of urease exists a declining tendency from the soil surface to the bottom, in which the changing scope of the enzyme activity of each layer in the salt meadow is the biggest. Correespondingly, the each layer of farm land, Populus euphratica and reed wetland enzyme activity has the sub-change scope. The enzyme activity of sucrase exists a declining tendency from the soil surface to the bottom,Each changing scope of the soil enzyme activity in the Populus euphratica is the biggest, the salt meadow and reed wetland`s soil enzyme activity is relatively smaller, and each changing scope of sucrase activity in farm land is not obvious. soil is not obvious to the proteinase activity influence, which indicating that the proteinase is unable representative to reflect this area soil fertility condition . whereas four kinds of enzyme activities in the Haloxylon ammodendro are relatively low, and each change is not obvious, instructing that the disturbance by human are more lightly. Soil enzymes as part of the soil, it plays an important role in the transformation of nutrients, organic matter decomposition, degradation and restoration of pollutants [1].Soil enzyme is kind of substances which remains catalytic ability of decomposition in the soil, it is from microorganisms, plants, animals and there living secretion of debris [2]. In recent years, scholars have paid a lot of attention in the soil enzyme activities as indicators of soil quality research in biological activity [3], they think that the land use could affected significantly enzyme activity of soil, determination of soil enzyme activity and quality has become indispensable. But on the research of soil enzyme activities in the wetland soil of arid desert edge is lack. This paper study the soil enzyme in different land use in Xinjiang Ganjiahu Wetland edge, and discuss the human activities on wetland and ecosystem interference mechanism, in order to carry out construction projects of wetland degradation and restoration and provide evidence.

scholarly journals Effects of strip rotary tillage with subsoiling on soil enzyme activity, soil fertility, and wheat yield

2019 ◽  
Vol 65 (No. 9) ◽  
pp. 449-455 ◽  
Author(s):  
Jianning He ◽  
Zhenwen Yu ◽  
Yu Shi
Keyword(s):  
Enzyme Activity ◽  
Soil Fertility ◽  
Wheat Yield ◽  
Nutrient Release ◽  
Soil Nutrient ◽  
Soil Bulk Density ◽  
Physical Structure ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
The Impact

Inappropriate tillage and soil compaction threaten farmland sustainability in the Huang-Huai-Hai Plains of China. We aimed to explore the impact of plowing tillage, rotary tillage, strip rotary tillage, and strip rotary tillage coupled to a two-year subsoiling interval (STS) on soil quality at various soil depths and on wheat yield. Soil bulk density was substantially lower in the 30–45 cm depth under STS than under any other treatment, resulting in lower soil penetration resistance. Highest soil particle macro-aggregation was observed under STS in the 15–45-cm soil layer.Consistently with greater nutrient availability, key enzymes associated with soil fertility (urease, invertase, phosphatase, and catalase) showed higher activity in STS plots. Concomitantly, highest yields were recorded for STS at 10 451 and 10 074 kg/ha in 2014–2015 and 2015–2016, respectively. STS significantly improved soil physical structure and enhanced soil enzyme activity, thereby stimulating soil nutrient release and increasing winter wheat yield.  

Sign in / Sign up

Export Citation Format

Share Document