The Relationship Between the Number of Trees Per Acre and the Percentage Stocking of Reproductiondoi:10.1093/jof/51.5.342Ker John WJournal of Forestry
摘要: This study was initiated and designed, first, to determine the reliability of the stocking survey system, and, second, to construct free hand curves which would give the ratio of percent of stocking to number of trees per acre.
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Evolution of the low income per acre﹍arge number of acres per farm﹉ighly mechanized﹎onoculture‐not too sustainalbe agricultureestados unidos de americafarm managementusagrande exploitation agricoleexplotaciones agrarias grandesgestion de l'exploitation agricolemanejo de fincas...
Why number of sticks plus number of trees divided by two may equal cords per acre.Alan R.Department of Forest Resources College of Forestry University of Minnesota St. PaulBurkDepartment of Forest Resources College of Forestry University of Minnesota St. PaulThomas E...
HUNTERS ANTICIPATE WILD TURKEY SEASON NORTHERN NECK HAS THE GREATEST NUMBER OF BIRDS PER WOODED ACRE, OFFICIAL SAYS.(SPORTS)Hutchinson, Bob
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cattle n.牛;牲口,家畜 cause n.原因,理由,缘故;事业,(奋斗的) 目标 v.使产生,引起 caution n.小心,谨慎;警告,告诫 v.警告 cautious a.(of) 小心的,谨慎的 cave n.山洞,洞穴 v.塌陷;(业余爱好) 探洞 cease v.& n.停止,中止 ceiling n.天花板 celebrate v.庆祝;庆贺 cell n.细胞;小...
60. acre ['eikə] n.英亩;田地;地产 61. acrobat ['ækrəbæt] n.特技演员,杂技演员 62. across "[ə'krɔs, ə'krɔ:s]" prep.横过,越过;在的对面 ad.横过,穿过 63. act [ækt] v.表演;举动;起作用 n.行为,法令;一幕 ...