Building cropping patterns appropriate neighborhood conditions Stormwater biofilter is necessary to protect making great usage of black grounds. At present, the cropping patterns and their particular spatial qualities within the black soil region of Northeast Asia is badly understood. Based on the BAY 11-7082 crop category data in 2017-2019, we utilized geo-information Tupu techniques, circulation index model, and bivariate spatial autocorrelation to examine the cropping habits. The outcome indicated that 1) The main cropping habits in the black colored earth area of Northeast Asia were constant maize cropping, continuous rice cropping, continuous soybean cropping, and maize-soybean rotation, accounting for 38.3%, 18.5%, 10.3% and 26.0%, respectively. The maize-soybean rotation included maize-soybean two-year rotation, maize-maize-soybean three-year rotation, and soybean-soybean-maize three-year rotation, accounting for 44.1%, 34.5% and 21.4% associated with the rotation location, respectively. 2) Various cropping habits had demonstrably horizontal differentiation. As an example, continuous maize cropping had extremely apparent gradient differentiation traits in temperature and moisture, but soybean continuous cropping and maize-soybean rotation showed no gradient differentiation, while continuous rice cropping had gradient differentiation only in humidity. 3) different cropping patterns had obviously spatial clustering attributes. They had spatial transition characteristics from soybean continuous cropping, soybean-soybean-maize three-year rotation, maize-soybean two-year rotation, maize-maize-soybean three-year rotation, to continuous maize cropping. The cropping pattern in black colored soil area of Northeast China had been dominated by constant cropping. Understanding its distribution pattern provides a basis for future spatial optimization of crop rotation.Revealing the answers of soil microbial community to soil erosion can provide assistance for agricultural ecosystem administration. We investigated the impacts of earth erosion strength on earth microbial quantity during the Binzhou River Basin, a typical thin layer Mollisol area in Bin County of Heilongjiang Province, using 137Cs tracer. The outcome revealed that there have been seasonal variations in earth microbial amount. The abundance of earth microbes during the summer ended up being considerably more than that in autumn. Bacteria was more responsive to seasonal variation than fungi and actinomycetes, that has been increased by 1.4-2.6 times and 1.4-2.2 times in summer compared to autumn in numerous components of pitch and watershed, respectively. The spatial variation of earth erosion power had a significant impact on the spatial circulation of earth microbial neighborhood. The highest percentage of micro-organisms was bought at reduced deposition part of slope (84.4%) as well as the lightly eroded area of the downstream (85.4%). The amounts of soil microbes, earth bacteria and actinomycetes had been unfavorable linearly correlated with soil erosion modulus, with correlation coefficients of -0.595, -0.554 and -0.291, respectively. Soil erosion and deposition induced spatial distinctions in earth actual and chemical properties, with effects on spatial distribution of earth microbial community.A reduction of chemical fertilizers and enhancing fertilizer utilization price are important for guaranteeing a balance between plant development and reducing the degradation of the black colored soil. We conducted a 2-year cooking pot experiment with four remedies during 2019 and 2020, including T0 no fertilizer, T1 traditional utilization of chemical fertilizer, T2 15% reduction of the chemical fertilizer combined with 400 kg·hm-2 of humic acid bio-fertilizer (HABF), and T3 30% reduced total of the chemical fertilizer along with 600 kg·hm-2 of HABF, to examine the result of decrease rates of chemical fertilizers combined with the HABF on soil microbial abundance, enzyme task and nutrient content in maize cultivation. The outcomes showed that the use of HABF dramatically increased the variety of soil bacteria and fungi, using the amount of microbial colonies being definitely correlated with the amount of HABF. Whenever measured in the tassel stage of maize growth, T2 and T3 treatments dramatically increased the actions of urease, sucrase, and catalase in soil by 11.4%-21.6%, 34.9%-46.7%, and 6.5%-13.4%, correspondingly. The readily available nitrogen articles in T2 and T3 treatments were higher than that in the T1 treatment by 8.2%-18.1%, which ensured the adequate nitrogen supply to maize following the tassel phase. Earth offered phosphorus and readily available potassium articles increased by 17.1%-121.0% and 9.6%-57.3%, respectively, weighed against T1 treatment. With the increases associated with number of HABF, the activation ramifications of soil phosphorus and potassium and dry matter mass per plant increased significantly in T2 and T3 treatments compared to T1 treatment. In closing, HABF presented the proliferation of soil bacteria and fungi, enhanced tasks of catalase, urease, and sucrase, earth nutrient contents, and dry matter mass per plant. The 15% reduced amount of chemical fertilizer combined with 400 kg·hm-2 of HABF is considered the most appropriate nutrient management strategy for maize production in black soil.Clarifying the distinctions of maize yield and its particular security under lasting no-tillage with different stover mulching quantities can provide theoretical and technical supports for establishing and evaluating lasting conservation tillage pattern and promoting grain manufacturing. Based on a long-term preservation tillage area experiment in the mollisol area of Northeast Asia since 2007, we analyzed the interannual difference, variation coefficient and stability of maize yield during 2013 and 2019 across five treatments, i.e., no-tillage stover-free mulching (NT0), no-tillage with 33% stover mulching (NT33), no-tillage with 67% stover mulching (NT67) and no-tillage with 100per cent chronic infection stover mulching (NT100), aided by the conventional ridge cropping (RT) whilst the control. The outcomes indicated that compared with RT, lasting no-tillage with stover mulching remedies could increase maize yield. NT100 had the greatest increasing rate of 11.4per cent, followed closely by NT67 and NT0, aided by the increasing rate of 11.0% and 10.4%, respectively.
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