نتایج جستجو برای: broadleaf

تعداد نتایج: 1235  

Journal: :The Science of the total environment 2015
Xiaoli Fu Fengting Yang Jianlei Wang Yuebao Di Xiaoqin Dai Xinyu Zhang Huimin Wang

Experiments with potted plants and removed understories have indicated that understory vegetation often affects the chemical and microbial properties of soil. In this study, we examined the mechanism and extent of the influence of understory vegetation on the chemical and microbial properties of soil in plantation forests. The relationships between the vegetational structure (diversity for diff...

2014
Yuxin Zhang Shuang Zhang Keming Ma Bojie Fu Madhur Anand

The role of forest plantations in biodiversity conservation has gained more attention in recent years. However, most work on evaluating the diversity of forest plantations focuses only on one spatial scale; thus, we examined the effects of sampling scale on diversity in forest plantations. We designed a hierarchical sampling strategy to collect data on woody species diversity in planted pine (P...

2017
Russell Gray Colin T. Strine

Understanding and monitoring ecological impacts of the expanding agricultural industry in Belize is an important step in conservation action. To compare possible alterations in herpetofaunal communities due to these anthropogenic changes, trapping arrays were set in a manicured orchard, a reclaimed orchard and a lowland broadleaf forest in Stann Creek district at Toucan Ridge Ecology and Educat...

2012
Vít PENÍŽEK Tereza ZÁDOROVÁ

Mountainous areas represent regions with specific soil cover pattern that is naturally given by an altitudinal gradient. The objective of our study was to describe the soil cover development on the altitudinal gradient under changed environment given by man-planted vegetation and acidification. The studied area is characterized by spruce monoculture planting that replaced the original broadleaf...

2011
Yuanhe Yang Yiqi Luo

Results The C : N ratio in plant tissue, litter, forest floor and mineral soil exhibited large variation across various sequences, with an average of 145.8 9.4 (mean SE), 49.9 3.0, 38.2 3.1 and 18.5 0.9, respectively. In most sequences, the plant tissue C : N ratio increased significantly with stand age, while the C : N ratio in litter, forest floor and mineral soil remained relatively constant...

2000
L. Tang L. F. Tian B. L. Steward

A novel texture-based weed classification method was developed. The method comprised a low-level Gabor wavelets-based feature extraction algorithm and a high-level neural network-based pattern recognition algorithm. The design strategy simulated the function of the human visual system, which uses low-level receptors for early stage vision processing and high-level cognition for pattern recognit...

Journal: :Proceedings of the New Zealand Weed and Pest Control Conference 1965

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