نتایج جستجو برای: soil conservation

تعداد نتایج: 276482  

Journal: :Journal of Biomedical Research & Environmental Sciences 2020

2011
Lixin Chen Zhiqiang Zhang Zhandong Li Jianwu Tang Peter Caldwell Wenjuan Zhang

Key Laboratory Soil and Water Conservation and Desertification Combating, Ministry of Education, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, PR China College of Landscape Architecture and Ornamental Horticulture, Beijing Forestry University, Beijing 100083, PR China c The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA Raleigh ...

2003
Susan Miller

Soil erosion, due to intensive agricultural practices, has been and continues to be of significant concern in the Whitewater Watershed, a coldwater tributary of the Mississippi River, in southeastern Minnesota. Conservation efforts, in the form of best management practices (BMPs) have been underway for many years and a number of residents have enrolled in various government programs designed to...

2011
Xiaohong Tang Youjin Luo Jiake Lv Chaofu Wei

Abstract: Ridge culture is a special conservation tillage method, but the long-term influence of this tillage system on soil aggregate-size stability in paddy fields is largely unknown in southwest of china. The objectives of this paper are to evaluate soil aggregates stability and to determine the relationship between SOC and soil aggregate stability.Soil samples at 0-20 cm layer were adopted ...

2004
Luuk Dorren Freddy Rey

Terracing is one of the oldest means of saving soil and water. The objective of this paper is to provide information on the different types of terraces and their functioning, and to describe advantages and disadvantages of terraces regarding their efficacy to stop or reduce soil erosion. Existing literature and information shows that terraces can considerably reduce soil loss due to water erosi...

2017
Ziting Wang Tong Li Xiaoxia Wen Yang Liu Juan Han Yuncheng Liao Jennifer M. DeBruyn

Conservation tillage is an extensively used agricultural practice in northern China that alters soil texture and nutrient conditions, causing changes in the soil microbial community. However, how conservation tillage affects rhizosphere and bulk soil fungal communities during plant growth remains unclear. The present study investigated the effect of long-term (6 years) conservation (chisel plow...

Journal: :Journal of nematology 1986
N A Minton

Literature reporting the development of conservation tillage and the research that has been conducted on nematode control in crops grown in conservation tillage systems is reviewed. Effects of different types of conservation tillage on population densities of various nematode species in monocropping and multicropping systems, effects of tillage on nematode distribution in the soil profile, effe...

حیدری, مهدی , فرامرزی, مرزبان ,

In most ecosystems, disturbance is an important agent of variation in community structure and composition. Determining the diversity and composition of soil seed bank is essential for designing conservation and restoration programs because it can markedly contribute to future plant communities. Despite the important role of soil seed banks in the composition of different plant communities, and...

2017

tion, conservation of soil water may result in greater soil evaporation, especially if the top soil layers remain wetter, and the full benefit of sustained plant physiological activity will be lost. Therefore, the relative benefit of the two traits depends on temporal pattern in the rainfall and severity of the drying event. Experimental and simulation studies are presented in the book to indic...

Journal: :Environmental management 2010
Michael J White Daniel E Storm Philip Busteed Scott Stoodley Shannon J Phillips

In the United States, many state and federally funded conservation programs are required to quantify the water quality benefits resulting from their efforts. The objective of this research was to evaluate the impact of conservation practices subsidized by the Oklahoma Conservation Commission on phosphorus and sediment loads to Lake Wister. Conservation practices designed to increase vegetative ...

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