Effect of 35 years inorganic fertilizer and manure amendment on structure of bacterial and archaeal communities in black soil of northeast China

2016 ◽  
Vol 105 ◽  
pp. 187-195 ◽  
Author(s):  
Jianli Ding ◽  
Xin Jiang ◽  
Mingchao Ma ◽  
Baoku Zhou ◽  
Dawei Guan ◽  
...  
Keyword(s):  
Northeast China ◽  
Black Soil ◽  
Inorganic Fertilizer ◽  
Bacterial And Archaeal Communities ◽  
Archaeal Communities

scholarly journals A Quantitative Analysis of Factors Influencing Organic Matter Concentration in the Topsoil of Black Soil in Northeast China Based on Spatial Heterogeneous Patterns

2021 ◽  
Vol 10 (5) ◽  
pp. 348
Author(s):  
Zhenbo Du ◽  
Bingbo Gao ◽  
Cong Ou ◽  
Zhenrong Du ◽  
Jianyu Yang ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Erosion ◽  
Soil Type ◽  
Northeast China ◽  
Black Soil ◽  
Factors Affecting ◽  
Soil Zone ◽  
Rainfed Farming ◽  
Study Results

Black soil is fertile, abundant with organic matter (OM) and is exceptional for farming. The black soil zone in northeast China is the third-largest black soil zone globally and produces a quarter of China’s commodity grain. However, the soil organic matter (SOM) in this zone is declining, and the quality of cultivated land is falling off rapidly due to overexploitation and unsustainable management practices. To help develop an integrated protection strategy for black soil, this study aimed to identify the primary factors contributing to SOM degradation. The geographic detector, which can detect both linear and nonlinear relationships and the interactions based on spatial heterogeneous patterns, was used to quantitatively analyze the natural and anthropogenic factors affecting SOM concentration in northeast China. In descending order, the nine factors affecting SOM are temperature, gross domestic product (GDP), elevation, population, soil type, precipitation, soil erosion, land use, and geomorphology. The influence of all factors is significant, and the interaction of any two factors enhances their impact. The SOM concentration decreases with increased temperature, population, soil erosion, elevation and terrain undulation. SOM rises with increased precipitation, initially decreases with increasing GDP but then increases, and varies by soil type and land use. Conclusions about detailed impacts are presented in this paper. For example, wind erosion has a more significant effect than water erosion, and irrigated land has a lower SOM content than dry land. Based on the study results, protection measures, including conservation tillage, farmland shelterbelts, cross-slope ridges, terraces, and rainfed farming are recommended. The conversion of high-quality farmland to non-farm uses should be prohibited.

scholarly journals Ecological Land Fragmentation Evaluation and Dynamic Change of a Typical Black Soil Farming Area in Northeast China

2017 ◽  
Vol 9 (2) ◽  
pp. 300 ◽  
Author(s):  
Shuhan Liu ◽  
Dongyan Wang ◽  
Hong Li ◽  
Wenbo Li ◽  
Qing Wang
Keyword(s):  
Northeast China ◽  
Dynamic Change ◽  
Black Soil ◽  
Land Fragmentation ◽  
Farming Area

Spatial Variability of Nutrient Properties in Black Soil of Northeast China

Pedosphere ◽  
2007 ◽  
Vol 17 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Xing-Yi ZHANG ◽  
Yue-Yu SUI ◽  
Xu-Dong ZHANG ◽  
Kai MENG ◽  
S.J. HERBERT
Keyword(s):  
Spatial Variability ◽  
Northeast China ◽  
Black Soil
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