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本发明涉及一种树干含水率测量方法,包括以下步骤:步骤1、在树干上沿轴向选取两点并分别布设金属电极a和金属电极b;步骤2、计算步骤1中金属电极a、金属电极b和树干构成的电源的内阻;步骤3、通过树干含水率与电源内阻之间的关系模型MC=f(R i )计算树干含水率。本发明不需要构建复杂的测量电路,测量方法简单、测量成本低。
本发明涉及一种基于等效电源内阻的树干含水率测量方法,包括以下步骤:步骤1、在树干上沿轴向选取两点并分别布设金属电极a和金属电极b;步骤2、计算步骤1中金属电极a、金属电极b和树干构成的电源的内阻;步骤3、通过树干含水率与电源内阻之间的关系模型MC=f(R i )计算树干含水率。本发明不需要构建复杂的测量电路,测量方法简单、测量成本低。
本实用新型的古树根系透气装置,包括中空的通气板体,通气板体由多个平行管体侧面连接形成,管体的横截面为矩形,管体的上端开口,每一管体的侧壁上设置有多个通气孔。本实用新型的古树根系透气装置可以使古树根系土壤周围形成空气对流,既为古树根系细胞呼吸提供充足的氧气,又能排出古树根系细胞呼吸产生的热量和二氧化碳,促进古树根系的生长,进而促进古树的生长。本实用新型的古树根系透气装置可以自由、灵活地组装,以适合于...
陈志萍,女,副教授/高级农艺师,主讲课程有《种苗生产》、《植物组织培养》、《园林植物栽培与养护》等,长期从事园艺植物种质引种驯化繁育相关工作,发表文章10余篇。主编《种苗生产》、《园林植物栽培与养护》入选农业农村部“十三五”规划教材。主持上海市级精品课程《植物组织培养》,主讲上海市级精品课程《花卉生产技术》。 多次指导学生获国赛二等奖1次、三等奖3次。
刘承珊,女。上海农林职业技术学院园林技术教研室专任教师。毕业于南京林业大学园林专业,副教授、工程师。教学与技术专长为园林植物应用与园林工程测量。
近日,林学院张晓教授团队土壤微生物多样性机制方面取得新进展,研究成果以 “Species pool, local assembly processes: disentangling the mechanisms determining bacterial α and β diversity during forest secondary succession”为题发表于《Molecular Eco...
Although forest soils play an important role in the carbon cycle, the influence of topography has received little attention. Since the topographical gradient may affect CO2 emissions and C sequestrati...
Seasonal variations in stoichiometry are a crucial regulatory mechanism for plant communities that respond to environmental changes. However, the seasonal characteristics of stoichiometry in plants, l...
Hybrid poplar plantations are becoming increasingly important as a source of income for farmers in northwestern Spain, as rural depopulation and farmers aging prevent landowners from planting other la...
Forestry?professionals' attitudes towards risk and uncertainty under climate change, together with their perception about suitability of adaptation strategies, were investigated in Central Europe. We ...
This paper is motivated by our collaborative research and the aim is to model clinical assessments of upper limb function after stroke using 3D-position and 4D-orientation movement data. We present a ...
Protected areas (PAs) have been established worldwide for achieving long-term goals in the conservation of nature with the associated ecosystem services and cultural values. Globally, 15% of the world...
Forest production is strongly dependent on nutrient uptake; however, sustainable management of intensively managed plantations requires an improved understanding of this relationship when fertilizatio...
Landscape carbon storage is a key component of climate change mitigation. Tree planting on degraded land has been identified as an effective carbon capture strategy, but it is unclear how various asso...
Climate change induces multiple abiotic and biotic risks to forests and?forestry. Risks in different spatial and temporal scales must be considered to ensure preconditions for sustainable multifunctio...

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