نتایج جستجو برای: plantation spacing

تعداد نتایج: 28507  

فضای بستری کودکان بر حالات روحی و روانی آنان تأثیر بسزایی دارد و عدم توجه به نیازهای آنها می‌تو...

2002
Colin A. Chapman Lauren J. Chapman Amy Zanne Matthew A. Burgess

The use of plantations to manage extensive tracks of deforested lands in the tropics is a conservation strategy that has recently received considerable attention. Plantation trees can promote seed dispersal by attracting dispersers and creating favorable site conditions, leading to increased germination and establishment of indigenous trees. Subsequently, plantation trees can be harvested for p...

2017
Hairong Zhao Wanqin Yang Fuzhong Wu Bo Tan

Forest filtering is a well-known and efficient method for diminishing atmospheric pollutant (such as SO42- and Cl-) inputs to soil and water; however, the filtering efficiencies of forests vary depending on the regional vegetation and climate. The rainy area of West China has suffered from heavy rainfall and human activity, which has potentially resulted in large amounts of sulfur and chlorine ...

2018
Martin E. Ekiti Jean-Berthelot Zambo Felix K. Assah Valirie N. Agbor Krystel Kekay Gloria Ashuntantang

BACKGROUND Agricultural workers especially in sugarcane plantations have a high risk of chronic kidney disease (CKD). Little is known about CKD among sugarcane plantation workers in Cameroon. This study sought to evaluate the prevalence and identify factors associated with CKD in sugarcane plantation workers in Cameroon. METHODS We conducted an analytic cross-sectional study including 204 adu...

2017
Cong Xu Justin Morgenroth Bruce Manley

In New Zealand, approximately 70% of plantation forests are large-scale (over 1000 ha) with accurate resource description. In contrast, the remaining 30% of plantation forests are small-scale (less than 1000 ha). It is forecasted that these small-scale forests will supply nearly 40% of the national wood production in the next decade. However, in-depth description of these forests, especially th...

2016
Hsueh-Ching Wang Guanglong Tian Chih-Yu Chiu

Bamboo, which has dense culms and root rhizome systems, can alter soil properties when it invades adjacent forests. Therefore, this study investigated whether bamboo invasions can cause changes in soil organic matter (SOM) composition and soil humification. We combined solid-state (13)C NMR spectroscopy and chemical analysis to examine the SOM in a Japanese cedar (Cryptomeria japonica) and adja...

Journal: :environmental resources research 2014
ehsan sayad shaieste gholami mohammad-hasan salehe-shooshtari

we studied litterfall dynamic of tree plantations in dez river floodplain, at 14 to 15 years old. the plantations consist of populus euphratica oliv., eucalyptus camaldulensis dehnh., e. microtheca f. muell, acacia farnesiana (l.) willd., a. salicina lindl., a. saligna (labill.) h. wendl., a. stenophylla benth. and dalbergia sissoo roxb. litterfall was different between the tree species, and le...

برنامه‌ریزی توسعۀ فضایی با دستور کار بهبود وضعیت آتی، از لحاظ نظری با ابعاد مربوط به آینده سروک...

Journal: :Hispanic American Historical Review 1968

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