鹰咀界天然次生林自然保护区林地土壤特性研究

来源 :生态学杂志 | 被引量 : 0次 | 上传用户:djgohx
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
According to the studies on 22 samples of soil profile from the natural forest conservation area at Yingzui mountain,the characteristics of soil were described.Research results indicated that the type of soil profile structure was A-B-C-D,and the soil development was successive.The average contents of organic matter in the soil was 54.30g·kg -1 ,the ratio of C/N was 10.93 and the bulk density was 1.25g·cm -3 .the soil texture was heavy loam or light clay.The soil fertility was higher compared with the soil from natural forest conservation of ZhangJiajie mountain,which developed from the same parent material of silicon rocks as Yingzui area.The forest soil of the area is typical in the subtropical natural forest.So it is valuable to be protected. According to the studies on 22 samples of soil profile from the natural forest conservation area at Yingzui mountain, the characteristics of soil were described. Research results that the type of soil profile structure was ABCD, and the soil development was following. The average contents of organic matter in the soil was 54.30 g · kg -1, the ratio of C / N was 10.93 and the bulk density was 1.25 g · cm -3. The soil texture was heavy loam or light clay. The soil fertility was higher than with the soil from natural forest conservation of ZhangJiajie mountain, which developed from the same parent material of silicon rocks as Yingzui area.The forest soil of the area is typical in the subtropical natural forest.So it is valuable to be protected.
其他文献
目的探讨卵巢良性肿瘤保留生殖内分泌功能手术的有关预后情况。方法回顾性分析2005年5月至2010年5月在我院行保留生殖内分泌功能手术的卵巢良性肿瘤患者103例的临床资料。结
随着全社会的消费升级以及人们健康意识的提升,家庭净水设备得到越来越多消费者的认可,不过我国幅员辽阔,各地区多样化的水资源状况决定净水器需求极具差异化,尤其是在智能的助推下,个性化、多样化的家庭细分净水市场也成为企业关注的焦点,而面对种类繁多的家庭净水设备,如何选择也备受大众关注。  刚需助力市场扩张  众所周知,我国是一个水资源匮乏的国家,虽然水资源总量不少,但在巨大人口的饮水需求下,平均饮水量还
重型颅脑伤开颅术中出现的急性脑膨出是临床常见的棘手问题,是导致急性期患者死亡的重要原因。术中发生急性脑膨出常见原因是迟发性颅内血肿和弥漫性脑肿胀,术中不应消极地将
目的评价0.4mm不锈钢丝牙间连续结扎加颌间弹性牵引治疗颌骨骨折。方法用0.4mm不锈钢丝行牙间连续结扎,并在牙间制作出牵引钩,用小橡皮环套在制定的牵引钩上行弹性牵引,逐渐