نتایج جستجو برای: three mowing heights including 2

تعداد نتایج: 4125365  

2016
Zhiqiang Wan Jiuyan Yang Rui Gu Yan Liang Yulong Yan Qingzhu Gao Jie Yang Fausto Cavallero

The Stipa grandis steppe is a type of steppe in the Central Asian sub-region, and it is an important resource for livestock production in China. Mowing is one of the main management methods for this steppe. Verifying the response of the Stipa grandis steppe communities to different mowing frequencies is essential for the rational utilization of pastures and the protection and recovery of natura...

2006
Charlotte Vandenberghe François Freléchoux Fawziah Gadallah Alexandre Buttler

Question: What is the effect of gap size on the seedling emergence, growth and survival of four common tree species in wooded pastures? Location: A pasture in the Jura mountains, Switzerland. Methods: Seeds were sown in a complete three-way factorial design with eight blocks in May 2003. Each block consisted of a competition treatment (four gap sizes including zero) and a mowing treatment (mown...

Journal: :Remote Sensing 2016
Tanel Tamm Karlis Zalite Kaupo Voormansik Liina Talgre

In this study, the interferometric coherence calculated from 12-day Sentinel-1 image pairs was analysed in relation to mowing events on agricultural grasslands. Results showed that after a mowing event, median VH (vertical transmit, horizontal receive) and VV (vertical transmit, vertical receive) polarisation coherence values were statistically significantly higher than those from before the ev...

2012
Lihua Zhang Dufa Guo Shuli Niu Changhui Wang Changliang Shao Linghao Li

BACKGROUND Mowing is a widely adopted management practice for the semiarid steppe in China and affects CH(4) exchange. However, the magnitude and the underlying mechanisms for CH(4) uptake in response to mowing remain uncertain. METHODOLOGY/PRINCIPAL FINDINGS In two consecutive growing seasons, we measured the effect of mowing on CH(4) uptake in a steppe community. Vegetation was mowed to 2 c...

Journal: :Environmental management 2009
Kirk W Davies Jonathan D Bates Dustin D Johnson Aleta M Nafus

Mowing is commonly implemented to Artemisia tridentata ssp. wyomingensis (Beetle & A. Young) S.L. Welsh (Wyoming big sagebrush) plant communities to improve wildlife habitat, increase forage production for livestock, and create fuel breaks for fire suppression. However, information detailing the influence of mowing on winter habitat for wildlife is lacking. This information is crucial because m...

2014
Pierrick Buri Jean-Yves Humbert Raphaël Arlettaz

Bees are a key component of biodiversity as they ensure a crucial ecosystem service: pollination. This ecosystem service is nowadays threatened, because bees suffer from agricultural intensification. Yet, bees rarely benefit from the measures established to promote biodiversity in farmland, such as agri-environment schemes (AES). We experimentally tested if the spatio-temporal modification of m...

2012
C. Shao J. Chen L. Li L. Zhang

Mowing for hay is a widely adopted practice for grasslands utilization and management. However, its effects on energy partitioning have not well been studied. Our primary objective was to examine the role of mowing as a disturbance factor acting on energy partitioning and relationships between community composition/structure and energy fluxes in a typical steppe ecosystem through a long-term fi...

2008
M. A. Harivandi W. B. Hagan K. N. Morris

The industry trend to golf putting greens which produce greater ball-roll distances has led to development of high density creeping bentgrass (Agrostis palustris, Huds.) cultivars that tolerate very low mowing heights. These cultivars also have a finer leaf texture and improved competitiveness with the invasive weed, annual bluegrass (Poa annua L.). In this multi-year field study, newer cultiva...

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