Soil

Publication Title: 
Physiologia Plantarum

Waterlogging is associated with poor soil drainage. As a consequence oxygen levels decrease in the root environment inducing root asphyxia and affecting plant growth. Some plants can survive under these conditions triggering complex anatomical and biochemical adaptations, mostly in the roots.

Author(s): 
Amador, María L.
Sancho, Sara
Bielsa, Beatriz
Gomez-Aparisi, Joaquín
Rubio-Cabetas, María J.
Publication Title: 
The Science of the Total Environment

Aluminum is liberated from aluminosilicates of soil clays and protracted Al intake by humans in food and medications has been shown to be a potential hazard to human health. Encephalopathology, senility, and lower statistical longevity were found to be geographically and geochemically linked to acid soil conditions. We examined the interrelation of soil environmental supply of Al3+(6H2O) to the food-plant-animal-human chain (e.g., in tea leaves, approximately 1000 mg L-1) and to identified health hazards.

Author(s): 
Jackson, M. L.
Huang, P. M.
Publication Title: 
Bulletin of Environmental Contamination and Toxicology

Arsenic contamination of ground water is well understood while other environmental systems are rarely considered to be contaminated by arsenic. A vital issue is whether or not appreciable arsenic transmits through the food chain. Reportedly, ayurvedic herbal medicine products (AHMPs) manufactured in Asia were found to be contaminated by harmful level of Arsenic. This study was aimed to quantify the arsenic levels in water, herbal and soil samples collected from the same origin using highly accurate neutron activation analysis (NAA) technique.

Author(s): 
Islam, M. T.
Islam, S. A.
Latif, S. A.
Publication Title: 
Environmental Monitoring and Assessment

Biogeochemical characteristics of the cattle are dealt based on the observations made in Ayurveda in the light of modern scientific developments in applied environmental geochemistry. The biogeochemical characteristics of certain important ecological components and animal products of the stall-fed animals were studied. For this purpose, a dairy farm of Tirumala-Tirupati Devasthanams, a religious organization in Tirupati, Chittoor District, Andhra Pradesh was selected.

Author(s): 
Raghu, V.
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

This paper presents a review of the mechanisms and advantages of the constructed wetland (CW). The wetland as land-intensive biological treatment systems has complicated purificative mechanisms, including physio-chemistry such as substrate adsorption, substrate filtration, plant adsorption, pollutant sediment ion exchange and biochemistry such as plant sorption, microbiology oxidation, microbiology ammunition.

Author(s): 
Ji, Guodong
Sun, Tieheng
Li, Shun
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

The effects of soil temperature (0, 5, 15, 25, 35 degrees C) and water content on soil respiration in three forest types in Changbai Mountain were evaluated in laboratory condition. The results indicated that the soil respiration rate was positively correlated to soil temperature from 0 to 35 degrees C and it increased with soil water content from 0.21 to 0.37 kg.kg-1. The soil respiration rate decreased with soil water content when water content was over the range. The result suggested the interactive effects of temperature and water content on soil respiration.

Author(s): 
Wang, Miao
Ji, Lanzhu
Li, Qiurong
Liu, Yanqiu
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

The soil N2O and CH4 fluxes in the broad-leaved Korean pine forest of Changbai Mountains under two treatments were measured by static chamber-gas chromatograph. The results showed that litter significantly influenced N2O emission and CH4 uptake, and the effect efficiency was 36.9% and 23.4%, respectively. The N2O emission fluxes of the two treatments showed similar seasonal variations, with the highest in spring, higher in summer, and lower in autumn and winter.

Author(s): 
Xiao, Dongmei
Wang, Miao
Ji, Lanzhu
Han, Shijie
Wang, Yuesi
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

In this paper, soil respiration chamber, a simple and precise method, was used to measure the stem respiration of trees. LI-6400-09 respiration chamber serving as a system is usually used in soil respiration, but we made polyvinyl chloride (PVC) collar and fixed it on the stem surface to measure the stem respiration. From May to October 2003, the stem respiration of Pinus koraiensis, the dominant tree species in Changbai Mountain, was measured in different time and different places using this technique. Meanwhile, the temperatures in the stems and in the forests were measured.

Author(s): 
Wang, Miao
Ji, Lanzhu
Li, Qiurong
Xiao, Dongmei
Liu, Hailiang
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

This paper studied the photosynthesis characteristics and water use efficiency (WUE) of Fraxinus mandshurica under three years simulated water stresses 85%-100% (CK), 65%-85% (MW) and 45%-65% (LW) of field water-holding capacity. The results showed that in comparing with CK, the photosynthesis rate and WUE were higher in treatment MW, but decreased by 7.26% and 1.13%, respectively in treatment LW, indicating that Fraxinus mandshurica could fully exert its photosynthesis potentiality under long-term medium water stress, and was more resistant to moderate than to critical water stress.

Author(s): 
Ji, Lanzhu
Xiao, Dongmei
Wang, Miao
Publication Title: 
Ying Yong Sheng Tai Xue Bao = The Journal of Applied Ecology / Zhongguo Sheng Tai Xue Xue Hui, Zhongguo Ke Xue Yuan Shenyang Ying Yong Sheng Tai Yan Jiu Suo Zhu Ban

By using leakage pond to simulate the double cropping paddy fields in Dongtinghu Lake area, this paper studied the effects of urea (CF) and controlled release nitrogen fertilizer (CRNF) on the dynamics of surface water pH, electrical conductivity (EC), total nitrogen (TN), ammonia nitrogen (NH4(+)-N) and nitrate nitrogen (NO3(-)-N) and the runoff loss of TN in alluvial sandy loamy paddy soil and purple calcareous clayed paddy soil, the two main paddy soils in this area.

Author(s): 
Ji, Xiong-Hui
Zheng, Sheng-Xian
Lu, Yan-Hong
Liao, Yu-Lin

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