树种组成 （species composition） 各林层、各树种蓄积量（断面积）所占的比重 纯林（pure stand）：由一个树种组成的或混有其他树种但材积分别占不到10%的林分 混交林（mixed stand） ：由两个或更多个树种组成，其中每个树种的...
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pure stand-alone edition 纯粹意义的单机版
pure stand performance 纯林分性能
pure stand of chinese fir 杉木纯林
pure artificial even aged stand 人工同龄纯林
Pure Moso stand 毛竹纯林
pure and mixed stand 纯林和混交林
Pure Masson's pine stand 纯马尾松林
As compared with the China-fir pure stand, it could improve the woodland, and increase the fertility in...
与杉木纯林相比，黑荆和杉木混交能改良林地，提高土壤肥力。
As compared with the China-fir pure stand, it could improve the woodland, and increase the fertility in the mi...
与杉木纯林相比，黑荆和杉木混交能改良林地，提高土壤肥力。
Representative mixed plantations A, B of Cyclocarya paliurua Ilinsk and Chinese fir and pure stand of Chinese fir in Xiqin Experimental Forest Farm were selected, and their biomass was determined.
在西芹林场选择有代表性的青钱柳、杉木混交林A、B两种和杉木纯林，进行生物量测定。
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