1) ground diameter
地径
1.
A Study on the correlation model of ground diameter,DBH and height of Eucalyptus urophylla×E.grandis plantation;
巨尾桉人工林地径与胸径、树高相关模型的研究
2.
Pots experiment was conducted to study the effects of bamboo vinegar on soil chemical properties,height and ground diameter of Cunninghamia lanceolata seedlings.
通过杉木幼苗的盆栽试验,采用喷施及土壤施入两种施用方法及9个不同浓度处理,分析施用竹酢液后对土壤化学性质以及杉木苗高和地径生长的影响。
3.
The growth law of height and ground diameter of one-year-old seedlings of Liriodendron chinese in Dabei Mountain Henan was studied in this paper.
对河南大别山引种鹅掌楸1年生播种苗苗高、地径的年生长变化研究表明,苗高、地径的生长规律符合“S”型生长曲线,可用Logistic方程来拟合;采用有序样本聚类分析法划分苗木的生长时期,把生长期划分为4个阶段,即出苗期(5月14日以前)、生长初期(5月15日~7月14日)、生长盛期(7月15日~9月12日)和生长后期(9月13日~11月11日);其中,生长盛期的生长量占年生长量的68。
2) basal diameter
地径
1.
Research on component factors of Bambusa pervariabilis×Dendrocalamus latiflorus indicated that: Bamboo basal diameter had positive correlation with full height and the culm cliff thickness of bamboo culm with the same age, and there was significant difference between the culm wall thickness with the same diameter but different age.
通过对撑麻7号竹材构件因子的调查分析,结果表明:立竹地径与全高、相同年龄立竹秆壁厚呈显著的正相关,而同一径级、不同年龄立竹的竹秆壁厚存在差异;竹秆相对高度竹壁厚度与秆径呈一致性变化趋势,立竹径级与竹秆相对壁厚无相关,平均相对壁厚0。
2.
We prepared a Unitary Volume Table for basal diameter of Pinus massoniana Lamb.
我们用2a时间实测活立木地径和胸径2500株,并按不同的径阶、不同的立地因子整理及汇总外业调查表,编制成《宜昌市马尾松地径一元材积表》,在实际工作中,它的编制将起到"填补材积表空白"的作用。
3) diameter at ground
地径
1.
Objective To study the growth rhythm of height, diameter at ground and the distribution of biomass of annual seedlings of Glycyrrhiza uralensis.
目的研究甘草1年生播种苗苗高、地径的生长动态变化及生物量分配模式。
4) diameter at butt end
地径
1.
There is significantly exponential functional relation between diameter at butt end and the main parameter of mot (the length of total roots,the total section area of roots,th.
地径与主要根参数(总根长、根总断面积、根干重)和主要枝参数(侧枝总断面积、枝干重)之间都有极显著的幂函数相关关系。
2.
The relationship of diameter and diameter at butt end was studied with the data of ten plots of Populus davidiana-Betulu platyphylla secondary mixed forests.
利用 10块山杨、桦树 (简称杨桦 )天然混交次生林标准地的实测资料 ,对两树种地径与直径的关系进行了研究 ,并建立了相应的线性模型 ,其相关系数均在 0 99以上 ,拟合效果良好 ,为林业科研和生产提供了可靠的依
3.
There is a significant exponential functional relation between diameter at butt end and the main parameters o.
通过整株法,观测1 a生与2 a生Larreatridentata根系的生长分布状况,并通过地径建立根系生长状况的数学模型。
5) surface runoff
地表径流
1.
Nitrogen and Phosphorus Loss by Surface Runoff in Farmland in Shanghai;
上海地区不同施肥方式氮磷随地表径流流失研究
2.
Effect of tourism on nitrogen and phosphorus loss in surface runoff In Jiuzhaigou world nature heritage reserve;
旅游活动对九寨沟地表径流氮磷流失的影响研究
3.
Characteristics of nitrogen and phosphorus losses with surface runoff in typical sub-watersheds of Jiulong River watershed.;
九龙江流域典型汇水区地表径流氮磷流失特征分析
6) runoff
[英]['rʌn,ɔ:f] [美]['rʌn,ɔf]
地表径流
1.
Based on the data of hydrology, vegetation and socio-economy during the last 50 years in the Tarim River Basin, this paper estimated the impact of anthropogenic activities on surface runoff through trend analysis, and measured the relationship between factorsof anthropogenic activities and surface runoff and groundwater quality by correlation analysis and principal component analysis.
结合塔里木河流域近50年来水文、植被以及社会经济等方面的资料,采用趋势分析方法估算人为因素对流域地表径流的影响,通过相关和主成分分析等数学方法分析人类活动诸因子与流域地表径流和地下水质之间的关系。
2.
Mercury fluxes were calculated for throughfall,bulk deposition and runoff at two areas: a small forest catchment at Tieshanping(TSP) and an urban area Guanyinqiao(GYQ).
为研究重庆市区汞污染状况,2004年9~11月,同步观测了重庆市近郊铁山坪小流域(TSP)和观音桥(GYQ)两个区域的全沉降、穿透水、地表径流和土壤中的总汞含量,估算了小流域中汞的输入输出通量,分析了城区和郊区的大气汞沉降和分布特征。
3.
Agricultural non-point source nitrogen(N) and phosphorus(P) losses are one of the major factors resulting in surface waters eutrophication,while understanding the fluxes and chemical forms of N and P in runoff is critical to control the eutrophication of water bodies.
农业面源氮磷输出是导致太湖流域地表水富营养化主要原因之一,查明该地区农田土壤地表径流氮磷向水体迁移形态与通量,并实施径流控制,对水体富营养化治理具有重要现实意义。
补充资料：地表径流
大气降水落到地面后，一部分蒸发变成水蒸汽返回大气，一部分下渗到土壤成为地下水，其余的水沿着斜坡形成漫流，通过冲沟，溪涧，注入河流，汇入海洋．这种水流称为地表径流．
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条