نتایج جستجو برای: brown forest soil

تعداد نتایج: 321767  

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Soil erosion is of the most important environmental challenges and factors of forest damage, which is, occur because of the land use change, road construction and lack of vegetation cover. Forest soil is naturally penetrable but forest roads are not. This issue causes the flows runoff on road surface and washes soil particles. Thus, forest roads must be planned and constructed accurately. So, t...

2018
Wonwoo Cho Sora Lee Romika Chandra Choi Eun Jung

Field experiments were carried out during 2011-2014 at the Research and Experimental 13 Center to Combating Desertification located in the Elsen Tasarkhai station of central Mongolia. The 14 study was aimed to identify the effects of oxidized brown coal humic acid fertilizer on the relative 15 growth rate of several trees for forest rehabilitation. The trees used were Populus sibirica, Salix 16...

2015
Dávid Bogyó Tibor Magura Dávid D. Nagy Béla Tóthmérész

We studied the distribution of millipedes in a forest interior-forest edge-grassland habitat complex in the Hajdúság Landscape Protection Area (NE Hungary). The habitat types were as follows: (1) lowland oak forest, (2) forest edge with increased ground vegetation and shrub cover, and (3) mesophilous grassland. We collected millipedes by litter and soil sifting. There were overall 30 sifted lit...

Journal: :Environmental science & technology 2015
Peter S Homann Robyn L Darbyshire Bernard T Bormann Brett A Morrissette

Soil is an important, dynamic component of regional and global mercury (Hg) cycles. This study evaluated how changes in forest soil Hg masses caused by atmospheric deposition and wildfire are affected by forest structure. Pre and postfire soil Hg measurements were made over two decades on replicate experimental units of three prefire forest structures (mature unthinned, mature thinned, clear-cu...

2012
D. S. Karam A. Arifin O. Radziah J. Shamshuddin N. M. Majid A. H. Hazandy I. Zahari A. H. Nor Halizah T. X. Rui

Deforestation leads to the deterioration of soil fertility which occurs rapidly under tropical climates. Forest rehabilitation is one of the approaches to restore soil fertility and increase the productivity of degraded areas. The objective of this study was to evaluate and compare soil biological properties under enrichment planting and secondary forests at Tapah Hill Forest Reserve, Perak aft...

Journal: :Revista de biologia tropical 2012
M Mohitul Hossain

The destruction of natural forest is increasing due to urbanization, industrialization, settlement and for the agricultural expansion over last few decades, and studies for their recovery need to be undertaken. With this aim, this comparative study was designed to see the effects of deforested soil on germination and growth performance of five different tree species. In the experiment, five spe...

2017
Gang Sun Kim Chul-Hee Lim Jin Kim Jongyeol Lee Yowhan Son

Afforestation of forests in South Korea may provide an example of the benefit of afforestation on precipitation storage and erosion control. In this study, we presented the effects of afforestation on water supply and soil loss prevention. A spatio-temporal simulation of forest water yield and soil loss was performed from 1971–2010 using InVEST water yield and SWAT models. A forest stock change...

2018
Miao Yang Dan Yang Xuan Yu

The aim of this study was to assess the impact of forest age and season on the soil microbial community and enzyme activities in sea-buckthorn plantation system and to determine the relative contributions to soil microbial properties. Soil sampling was carried out in the dry season (April) and wet season (September) in four areas, including: abandoned farmland (NH), an 8-year- old plantation (y...

2016
Ye-Ming You Juan Wang Xiao-Lu Sun Zuo-Xin Tang Zhi-Yong Zhou Osbert Jianxin Sun

Understanding the controls on soil carbon dynamics is crucial for modeling responses of ecosystem carbon balance to global change, yet few studies provide explicit knowledge on the direct and indirect effects of forest stands on soil carbon via microbial processes. We investigated tree species, soil, and site factors in relation to soil carbon density and mineralization in a temperate forest of...

Aboulghasem Yousefi Leila Darvishi

Increasing urbanisation and industrialisation have led to a dramatic reduction in forest area, and now only culturally protected remnants of natural forests and some new plantations remain in most areas of the north of Iran. To investigate the status of the chemical and physical characteristics of soil under these remnant forests and assess the possible impacts of reforestation on soil properti...

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