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2篇 您的检索式:作者名="N.S.R.Krishnayya"
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1两个热带树种(柚木和印度实竹)叶面积指数估测异速生长方程(英文)显示文摘通过破坏性抽样、相片网格法和落叶采受器法,获得了印度Shoolpaneshwar野生动物禁猎区内生长的柚木和印度实竹叶面积指数。建立了一个异速生长方程来决定两个树种的叶面积指数。结果表明,异速生长方程获得的叶面积指数与破坏性抽样、相片网格法和落叶采受器法评估得到的指数值相近;2种测定方式下,柚木的均方根误差分别是0.90和1.15,印度实竹的均方根误差分别为0.38和0.46。估计的和计算获得的叶面积指数值匹配性较好,说明用建立的方程计算得到的2个树种叶面积指数的准确性较好。总之,冠幅伸展是一个估计树木叶面积较好的且敏感的参数。本文所提出的方程可以用作估计热带柚木和印度实竹叶面积指数。图4表1参22。Dhaval Vyas Nirav mehta J.Dina-karan N.S.R.Krishnayya 2010Journal of Forestry Research2010,21,2:2
2Variations in total organic carbon and grain size distribution in ephemeral river sediments in western India显示文摘Total organic carbon(TOC) and grain size distribution(sand,silt,and clay) in the ephemeral Mahi River(western India) sediments were measured to look at their effectiveness in understanding the late Quaternary monsoon conditions.Four sites spread across the alluvial zone and three sites from the estuarine zone were sampled.TOC concentration in the sediments of the alluvial and estuarine zone sites ranged between 0.04 and 0.39%and 0.04 and 0.23%,respectively.It was observed that grain size differed significantly at the alluvial zone sites,whereas an uniform trend was found in the estuarine zone sites.The study indicated that low concentration of TOC and coarse size fractions(sand) in sediments were well correlated with available records of arid/weaker palaeomonsoon periods,whereas higher concentration of TOC and fine grain size fractions(silt + clay) in sediments were well correlated with available records of enhanced palaeomonsoon periods of the ephemeral Mahi River.Uniform concentrations of TOC and fine grain size particles in sediments at the estuarine zone sites are attributed to the backwater in the system,deeper sedimentation,and/or greater decomposition processes.It is concluded that,TOC and grain size distributions in the ephemeraL river sediments are simple and effective parameters to develop an understanding about late Quaternary monsoon conditions in ephemeral rivers.J.DINAKARAN N.S.R.KRISHNAYYA 2011International Journal of Sediment Research2011,26,2:2
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