检索结果-南通市图书馆

Areas with Potential for Commercial Timber Plantations of Enterolobium cyclocarpum (Jacq.) Griseb. in Michoacán, México

引用

Open Journal of Forestry 2016年第5期6卷 476-485页

作者： Hipólito Jesús Muñoz-flores J. Trinidad Sáenz-Reyes Agustín Rueda-Sánchez David Castillo-Quiroz Francisco Castillo-Reyes diana yemilet avila-flores National Institute of Forestry Agriculture and Livestock Research (INIFAP)-Experimental Station Uruapan Uruapan México National Institute of Forestry Agriculture and Livestock Research (INIFAP)-Experimental Station Saltillo Saltillo México

Michoacán has a deforested area of 525,260 ha, representing 52,526 ha per year, mainly caused by anthropogenic disturbances such as agricultural burning and forest fires (50%), change of use of land for extensive livestock farming (28%), agriculture (17%) and illegal logging (5%). The establishment of forest plantations is an alternative for reducing the pressure on natural forests and creating options for sustainable development and diversification of production and conversion of land for agricultural and livestock fragmented for forestry purposes. The aim of this study was to determine the potential areas for commercial forest plantations of Enterolobium cyclocarpum (Jacq.) Griseb. in the State of Michoacán, México, through the use of Geographic information systems (GIS). Areas were identified using IDRISI 32, and ArcView software. Screening variables include annual temperature, annual precipitation, land use, soil type, elevation and slope. Products obtained were field verified. Two maps where potential areas for the establishment of commercial forest plantations of E. cyclocarpum shown were obtained. Potential areas for commercial forest plantation establishment are (0% - 15% slope) for commercial forest plantations mechanized was 57,227 ha and (15% - 30% slope) for manual plantations was 6273 ha. The total area in the state with potential for the establishment of the species in the study was 63,500 ha.

关键词： Potential Areas Michoacán Enterolobium cyclocarpum Commercial Forest Plantations Geographic Information System

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Driving Factors for Forest Fire Occurrence in Durango State of Mexico:A Geospatial Perspective

引用

Chinese Geographical Science 2010年第6期20卷 491-497页

作者： diana avila-flores Marin Pompa-Garcia Xanat Antonio-Nemiga Dante A Rodriguez-Trejo Eduardo Vargas-Perez Javier Santillan-Perez Forestry Division University of Chapingo Faculty of Forestry Juarez University of the State of DurangoRio Papaloapan and Durango Blvd Faculty of Geography Autonomous University of Mexico StateCerro de Coatepec s/nCiudad Universitaria

Forest fire is one of the major causes of forest loss and therefore one of the main constraints for sustainable forest management *** the driving factors and understanding the contribution of each factor are essential for the management of forest fire *** objective of this study is to identify variables that are spatially related to the occurrence and incidence of the forest fire in the State of Durango,*** this purpose,data from forest fire records for a five-year period were *** spatial correlations between forest fire occurrence and intensity of land use,susceptibility of vegetation,temperature,precipitation and slope were tested by Geographically Weighted Regression(GWR) method,under an Ordinary Least Square *** show that the spatial pattern of the forest fire in the study area is closely correlated with the intensity of land use,and land use change is one of the main explanatory *** addition,vegetation type and precipitation are also the main driving *** fitting model indicates obvious link between the *** fire was found to be the consequence of a particular combination of the environmental factors,and when these factors coexist with human activities,there is high probability of forest fire *** regulation of human activities is a key strategy for forest fire prevention.

关键词： forest fire Geographically Weighted Regression(GWR) land use forest management Durango State Mexico

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Identification of Potential Areas for Establishment of Plantations of Agave lechuguillaTorr. in Coahuila, Mexico

引用

Open Journal of Forestry 2014年第5期4卷 520-526页

作者： David Castillo-Quiroz Oscar Ulises Martínez-Burciaga diana yemilet ávila-flores Francisco Castillo-Reyes Juan David Sánchez-Chaparro National Institute of Forestry Agriculture and Livestock Research (INIFAP) Experimental Station Saltillo Saltillo Mexico

Adverse weather conditions and intensive use for fiber production have caused decline of natural populations of Agave lechuguilla. By these reasons, it is important to develop a sustainable management of this specie to avoid this situation. One of the first steps is to establish forest plantations as an alternative to restore A. lechuguilla habitat and increase its range while at the same time indirectly reducing erosion rates. The aim of this study was to identify the potential areas for establishment of plantations of A. lechuguilla in the State of Coahuila, Mexico. Areas for planting establishment were selected according to multi-criteria analysis using Geographic Information System (GIS) Idrisi32 Ver 2.0 and 3.2 ***. The analysis was based on comparison of climate and soil requirements in contrast to environmental conditions of the tested area. The evaluated variables were: soil type, texture, depth, average annual temperature, annual precipitation, elevation and slope. Results derive in potential area maps, geo-referenced and their distribution by Agricultural Development District. An area of 5 million 159,273 hectares was determined with potential for establishment of A. lechuguilla forest plantations in the State of Coahuila. It was concluded that, use of GIS is a reliable tool to determine potential areas for A. lechuguilla forest plantations, where this specie has higher probability of success in survival and biomass production. This study will support programs aimed to strengthen the economy of rural producers and also recover and preserve the arid state.

关键词： Agave lechuguilla Forest Plantations Natural-Fiber Geographical Information Systems

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Potential Areas for Commercial Timber Plantations of Tabebuia rosea(Bertol.)*** Michoacan,Mexico

引用

Open Journal of Forestry 2017年第1期7卷 48-57页

作者： Hipolito Jesus Munoz-flores David Castillo-Quiroz Francisco Castillo-Reyes J.Trinidad Sáenz-Reyes diana avila-flores Agustín Rueda-Sánchez National Institute of Forestry Agriculture and Livestock Research(INIFAP)-Experimental Station UruapanUruapanMéxico National Institute of Forestry Agriculture and Livestock Research(INIFAP)-Experimental Station SaltilloSaltilloMéxico

The targeted area for plant reforestation in the state of Michoacan is made up of eroded areas and pasture induced areas, both adding to 525,260 ha and representing 10.9% of the total surface of the state. The regions with the largest areas in need of reforestation are the Costa with 185,396 ha (29%), Oriente with 106,836 (17%) and Tierra Caliente with 96,284 (15%). Commercial forest plantations are an alternative for reducing the pressure on natural forests and creating options for sustainable and diversified development, changing the land use from fragmented agricultur and livestock purposes to forestry. The object of this study was to determine potential areas for the establishment of commercial forest plantations of Tabebuia rosea (Bertol.) DC. in the state of Michoacan, Mexico, by using geographic information systems. The outlining of potential areas was performed with the IDRISI 32 and ArcView programs, according to the environmental requirements of T. rosea. These environmental requirements include precipitation, temperature, soil, altitude, land use and slope. The analysis resulted in two maps where the potential areas for the establishment of commercial forest plantations with this species were shown, which turned out a total potential area of 54,320 ha, distributed in 47,566 ha considering a slope of 0% - 15% for non-manual forest plantations, and 6754 ha considering a slope of 15% - 30% for manual forest plantations. The ecologic conditions in Michoacan are favorable for successful establishment and development of commercial forest plantations of T. rosea.

关键词： Potential Areas Michoacan Commercial Forest Plantations Tabebuia rosea Geographic Information System

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Two novel mutations in theGAN gene causing giant axonal neuropathy

引用

World Journal of Pediatrics 2018年第3期14卷 298-304页

作者： Monica Irad Normendez-Martínez Lucero Monterde-Cruz Roberto Martínez Magdalena Marquez-Harper Nayelli Esquitin-Garduno Margarita Valdes-flores Leonora Casas-avila Valeria Ponce de Leon-Suarez Viktor Javier Romero-Díaz Alberto Hidalgo-Bravo Medical Specialties Hospital Boulevard Milenio 130San Carlos la Roncha37660 LeonGuanajuatoMexico Department of Gene tics National Institute of R ehabilitationAvenue Mexico-Xochimilco 28914389 Me xico CityMexico Department ofHis tology School ofMedicineAutonomous University oft heS tate ofN uevo LeonMonterreyMexico

Background Giant axonal neuropathy (GAN) is a rare neurodegenerative disease transmitted in an autosomal recessive mode. This disorder presents motor and sensitive symptoms with an onset in early childhood. Progressive neurodegeneration makes the patients wheelchair dependent by the end of the second decade of life. Affected individuals do not survive beyond the third decade of life. Molecular analysis has identified mutations in the gene GAN in patients with this disorder. This gene produces a protein called gigaxonin which is presumably involved in protein degradation via the ubiquitin-proteasome system. However, the underlying molecular mechanism is not clearly understood yet. Methods Here we present the fi rst patient from Mexico with clinical data suggesting GAN. Sequencing of the GAN gene was carried out. Changes in the nucleotide sequence were investigated for their possible impact on protein function and structure using the publicly available prediction tools PolyPhen-2 and PANTHER. Results The patient is a compound heterozygous carrying two novel mutations in the GAN gene. The sequence analy-sis revealed two missense mutations in the Kelch repeats domain. In one allele, a C>T transition was found in exon 9 at the nucleotide position 55393 (g.55393C>T). In the other allele, a transversion G>T in exon 11 at the nucleotide position 67471 (g.67471G>T) was observed. Both of the bioinformatic tools predicted that these amino acid substitutions would have a negative impact on gigaxonin's function. Conclusion This work provides useful information for health professionals and expands the spectrum of disease-causing mutations in the GAN gene and it is the first documented case in Mexican population.

关键词： GAN Genetics Giant axonal neuropathy Incapacity Neurodegenerative

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Paclobutrazol and Its Use in Fruit Production:A Review

引用

Phyton-International Journal of Experimental Botany 2022年第1期91卷 1-12页

作者： Laura Raquel Orozco-Meléndez Ofelia Adriana Hernández-Rodríguez Oscar Cruz-Álvarez Loreto Robles-Hernández Graciela Dolores avila-Quezada Esteban Sánchez Chavez DamiánAarón Porras-flores Dámaris Leopoldina Ojeda-Barrios Facultad de Ciencias Agrotecnológicas Universidad Autónoma de ChihuahuaAvenida Pascual OrozcoChihuahua31350México Centro de Investigación y Desarrollo A.C. DeliciasChihuahua33089México

There are documentary records referring to paclobutrazol(PBZ)as a growth bioregulator that inhibits the gibberellin synthesis and its application increases yields in fruit and vegetable crop *** agronomic management includes it as an emerging technology to reduce vigour,promote flower induction and flower development in fruit trees with increased economic *** use is banned in some countries because of concerns about residues that can cause harmful effects on the ***,the aim of this article was to collect,analyse and summarise relevant information on the use of PBZ in fruit tree production and its possible risks to the *** results obtained indicated that the application of PBZ can be effective in solving some problems related to flowering if it is applied in the right amount and at the right ***,it is necessary to elucidate the physiological processes with which it is associated and its response to be taken into account to increase *** is currently used in fruit trees such as mango,lime,apple and guava,increasing their ***,some studies have shown its residual effect on the ***,PBZ is a viable strategy,because it presents a series of advantages in the production of fruit ***,it is vital to generate protocols that seek its regulation with a rational and sustainable approach.

关键词： Environment flower induction gibberellin biosynthesis growth bioregulator vegetative growth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Properties of Chemical Bath Deposited PbS Thin Films Doped with Cd2＋

引用

材料科学与工程（中英文A版） 2011年第6期1卷 759-767页

作者： Oscar Portillo Moreno Melissa Chavez Portillo Miriam Moreno flores Javier Martinez Juarez Gustavo Abarca avila Rosendo Lozada Morales Orlando Zelaya Angel Facultad de Ciencias Quimicas BUAP C. U. Puebla Mexico CIDS-ICUAP C. U. Puebla Mexico Facultad de Ciencias Fisicomatematicas BUAP C. U. Puebla Mexico Departamento de Fisiea Centro de Investigacion y de Estudios Avanzados Av. IPN 2508 Col San Pedro Zacatenco Mexico

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Can Improve Iron Biofortification Antioxidant Response,Yield and Nutritional Quality in Green Bean?

引用

Agricultural Sciences 2015年第11期6卷 1324-1332页

作者： Juan P.Sida-Arreola Esteban Sánchez Graciela D.avila-Quezada Paul B.Zamudio-flores Carlos H.Acosta-Muniz Centro de Investigación en Alimentación y Desarrollo ChihuahuaMéxico Facultad de Zootecnia y Ecología Universidad Autónoma de ChihuahuaChihuahuaMéxico

The aim of this study was to evaluate the effect of iron biofortification on antioxidant response, yield and nutritional qualityof green bean (Phaseolus vulgaris L.) under greenhouse conditions. Fe was applied using two forms (FeSO4 and Fe-EDDHA) at four doses of application (0, 25, 50 and 100 μm) added under a hydroponic system, and were tested over a period of 40 days. The Fe content was assessed in seeds, as well as the activity of antioxidant enzymes, production of H2O2, yield and nutritional quality. The results being obtained indicated that the accumulation of Fe in bean seeds enhanced with the application of Fe-EDDHA at the dose of 25 μm. This demonstrated that low Fe application dose was enough to increase Fe levels in seeds of common bean. In addition, Fe-EDDHA application form at 50 μmol was the best treatment to improve crop yield. Respect to antioxidant system, chelated form of Fe (Fe-EDDHA) was more effective in the activation of antioxidant enzymes (CAT, SOD and GSH-PX), and a lower content of H2O2 in green bean seeds. Finally, to raise the Fe concentration in bean under biofortification program was a promising strategy in cropping systems in order to increase the ingestion of iron and antioxidant capacity in the general population and provided the benefits that this element offered in human health.

关键词： Phaseolus vulgaris L. Antioxidant Activity Biofortification Iron Nutritional Quality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

In Vitroand in VivoEfficacy of an Experimental Compound against Rhipicephalus (Boophilus) microplusTicks

引用

Pharmacology & Pharmacy 2013年第1期4卷 41-45页

作者： Guadalupe Santillán-Velazquez Froylán Ibarra-Velarde Blas flores Pérez Margarita Romero-avila Yazmin Alcalá-Canto Héctor Salgado-Zamora Yolanda Vera Montenegro Department of Parasitology Veterinary Faculty of Medicin and Zootechnics National University Autonomus of Mexico Mexico City Mexico Faculty of Chemistry National University Autonomus of Mexico Mexico City Mexico Laboratory of Organic Chemistry School of Biological Sciences National Politechnic Institute Mexico City Mexico

The aim of the present study was to evaluate the ixodicide efficacy of the experimental compound 712-BF-016 against Rhipicephalus (Boophilus) microplus ticks in vitro and in cattle. The in vitro efficacy was initially tested against R. Boophilus microplus larvae using the Larval Packet Test (LPT). In a 2nd study the ixodicide efficacy was tested against adult ticks using the Adult Inmersion Test (AIT). Finally, a field test with the compound was carried out using 24 steers experimentally infested with R. (Boophilus) microplus ticks which were divided into 4 groups of 6 animals each for treatment. Groups 1 and 2 received the experimental compound at concentrations of 16% and 20%, respectively, which were applied as an aspersion in a total volume of 4 liters/animal. Group 3 was equally treated but with a commercial ixodicide containing cipermethrin at a 16% concentration. Group 4 served as untreated control. The efficacy was measured on days 1, 2, 3 after treatment as the percentage of ticks present from the treated groups, relative to the ticks present in the untreated control. The results indicated a percentage mortality of 93.21% for LPT and 98.02% for AIT. The efficacy produced in cattle was 61.78%, 76.43% and 85.34% for groups 1, 2 y 3, respectively. It is concluded that there was no concordance between the results obtained in vitro with those found in cattle. Possibly the excipient used for the formulation of the experimental compound was not suitable and had some influence on the results.

关键词： Rhipicephalus (Boophilus) microplus Ixodicide LPT AIT Cattle

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：