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In recent years, with the rapid economic development of Bohai Economic bay area in China, the atmospheric environmental pollution problem has been of wide concern and has attracted great public attention. In this paper, the data of PM₁₀, SO₂, CO, NO₂, O₃ and PM₂.₅ in 12 cities located around the Bohai Bay area of China were collected in 2016. These 12 cities were divided into coastal and non-coastal...
Lakes are one of the most important wetland types on the earth with many ecosystem functions. With continuing economic growth and climate change, lake abundance and surface areas throughout the world have been threatened by many factors, including by human and environmental disruptions. However, we still have limited knowledge on how human activities and climate change affect lake reductions and associated...
Planting rice (OryzasativaL.) is an effective and feasible approach for improving salt-affected soils, especially in saline-sodic soils. Improved rice is the main biological measure for rapid treatment and utilization of a saline-sodic paddy field. Reasonable application of nitrogen fertilizer is an important measure for obtaining saline-sodic soil high yield. Dongdao 4 (D-4), Dongdao 2 (D-2), Changbai...
Controlled irrigation and drainage (CID) has received considerable attention as a reliable management practice for improving water quality and water productivity in rice production. This study aimed to evaluate the effects of CID on water productivity, nitrogen, and phosphorus losses in paddy fields. Treatments include alternate wetting and drying (AWD; lower limit of irrigation to -200 mm and upper...
Alternate drought and flooding stress has become more prevalent during paddy growth stages as a result of climate change, especially in southern China. This study aims to assess the effect of alternate drought and flooding stress on water use, and nitrogen (N) and phosphorus (P) losses in paddy fields. Two controlled irrigation and drainage (CID) managements (namely drought at the beginning of growth...
PM₂.₅ is the top issue of air pollution in Henan Province in China, especially in autumn and winter. In order to investigate its spatial and temporal distribution characteristics, monitoring data were collected in 17 cities and analyzed by using statistical methods and GIS tools. The results show that 57.16% of the entire days in 2015 met Chinese the national standard on the daily average concentration...
The sequences of the internal transcribed spacer (ITS) regions of ectomycorrhizal fungi collected from Sichuan Province were analyzed using a PCR primer pair specific to T. matsutake. The amplified fragments were sequenced and compared with each other to build a phylogenetic tree. The mRNA deep sequencing approach was adopted to identify differentially expressed T. matsutake genes among the transcriptomes...
In this paper, two kinds of microbial agents – carbonate-microbe agents (CMA) and phosphate-microbe agents (PMA) – were used to remedy heavy metals in contaminated soil. Contrastive analysis of the remedying effects by CMA and PMA was obtained. Meanwhile, green vegetable cultivation and a vegetable transplanting experiment were conducted in contaminated soil that had been remedied by two kinds of...
For shallow lakes, phosphorus released from sediments becomes a major reason for eutrophication. To learn about the distribution characteristics of sedimentary phosphorous in Nansi Lake, China, the vertical distributions of sedimentary phosphorus at 5 representative sites were analyzed. The results showed that the sedimentary total phosphorus (TP) concentrations varied greatly, ranging from 313.50...
The Haloxylon ammodendron natural desert forest is an important vegetation formation and has a large distribution area in Junggar Basin, Xinjiang Province, China. In this paper, H. ammodendron populations were mapped, characterized and the spatial distribution patterns and spatial associations of H. ammodendron among different life stages (seedlings – S, juveniles – J, mature – M, overmature – O)...
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