1) model of estimation of steppe aboveground biomass
地上生物量估产模型
2) estimation of grassland biomass
草地估产生物量
4) above-ground biomass
地上生物量
1.
The plant community characteristics of different natural restoration grasslands and above-ground biomass were calculated.
采用TWINSPAN分类法对黄土丘陵沟壑区吴起县双树沟流域30个自然恢复草地植被进行分类,并对分类后各植被群落特征和地上生物量进行统计分析。
2.
Combining field investigation results with the constructed bi-factorial power regression models, we drew such conclusions as follows: 1) There was not significant difference in the above-ground biomass density of Fargesia nitida between calculated by r.
测量75株标准竹,建立各龄级华西箭竹地上生物量、地上各构件生物量关于基径和高度的一元和二元回归方程。
3.
First,correlation between original spectral,hyperspectral feature variables and above-ground biomass of natural grassland was analysed.
在进行天然草地地上生物量与原始光谱和高光谱特征变量相关分析的基础上,将观测数据分成两组:一组观测数据作为训练样本,运用单变量线性、非线性和逐步回归分析方法,建立生物量高光谱遥感估算模型;另一组观测数据作为检验样本,进行精度检验。
5) biomass
[英]['baɪəʊmæs] [美]['baɪo'mæs]
地上生物量
1.
Effect of Nitrogen Fertilizer on Biomass and the Important Values of the Main Species in Degraded Grassland
施氮对退化天然草地主要物种地上生物量和重要值的影响
2.
Influence of rainfall in growing season and clipping intensity on aboveground biomass of Leymus chinensis steppe
生长季降水量和刈割强度对羊草群落地上生物量的影响
3.
Taking the TM remote sensing image in August,2003 and 2004 as the data resource,combining with the ground survey data in the corresponding period,it is analyzed the effects of withdrawing graze and returning to the grassland from vegetation cover,vegetal composition and biomass on the ground etc.
本文选取了内蒙古镶黄旗为研究区域,以2003年8月份和2004年8月份的TM遥感影像为数据源,结合对应时期的地面调查数据,从植被盖度、植物类组成、地上生物量等方面对内蒙古镶黄旗退牧还草工程的实施效果进行了分析。
6) aboveground biomass
地上生物量
1.
Influences of water gradients on the aboveground biomass of a typical wetland plant(Calamagrostis angustifolia) in the Sanjiang Plain;
水分梯度对三江平原典型湿地植物小叶章地上生物量的影响
2.
Spatial heterogeneity of soil nutrients and aboveground biomass in abandoned old-fields of Loess Hilly region in Northern Shaanxi,China;
陕北黄土丘陵区撂荒群落土壤养分与地上生物量空间异质性
3.
Aboveground biomass of Tamarix on piedmont plain of Tianshan Mountains south slope.;
天山南麓山前平原柽柳灌丛地上生物量
补充资料:测定货币需要量数学模型法
测定货币需要量数学模型法
固定化和简单抽象化。【测定货币需要t数学模型法】将影响流通中货币量变动的因素作为自变量,将流通中货币量作为因变量,以求解的方式测定流通中货币需要量的方法。具体可分为回归分析模型法和模糊数学模型法。 数学模型法有严密的计算程序和严格的检验标准,因而具有合理、准确的优点。其缺陷则在于将影响货币流通量的经济、非经济因素
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