| 毛乌素沙地臭柏、油蒿细根生产动态及影响因子 |
| |
| 引用本文： | 吴国玺,张国盛,王林和,秦艳,邬俊义,郝云龙,于斯琴高娃.毛乌素沙地臭柏、油蒿细根生产动态及影响因子[J].干旱区资源与环境,2007,21(6):156-162. |
| |
| 作者姓名： | 吴国玺 张国盛 王林和 秦艳 邬俊义 郝云龙 于斯琴高娃 |
| |
| 作者单位： | 1. 内蒙古农业大学生态环境学院,呼和浩特,010019
2. 乌审旗国营纳林河林场,鄂尔多斯,017300 |
| |
| 基金项目： | 国家自然科学基金
,
国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | 在毛乌素沙地开发整治研究中心北试实验地选取了七块样地,并依据建群植被外貌特征划分为臭柏群落、臭柏灌丛、油蒿群落三类。用根钻对各样地一个生长季内的根系进行了五次取样,同时测量土壤水分、枝条生长长度、温湿度等一些气象因子。对活细根分级并称干重,发现臭柏、油蒿不同径级细根的季节动态不同,不同土层内相同径级的细根生产动态也不相同:①臭柏与油蒿D≤2 mm的细根生物量在4~5月份都有一个快速增长的阶段,随后增长格局各不相同。②臭柏灌丛中,1 mm
|
| 关 键 词： | 臭柏 油蒿 细根 生产动态 |
| 文章编号： | 1003-7578(2007)06-156-07 |
| 修稿时间： | 2006年5月22日 |
The Fine Roots' Production Dynamic and Influence Factors of Sabina vulgaris and Artemisia ordosica in Mu Us Sandland |
| |
| WU Guo-xi,ZHANG Guo-sheng,WANG Lin-he,Qin Yan,WU Jun-yi,HAO Yun-long,YU Siqin-gaowa.The Fine Roots'''' Production Dynamic and Influence Factors of Sabina vulgaris and Artemisia ordosica in Mu Us Sandland[J].Journal of Arid Land Resources and Environment,2007,21(6):156-162. |
| |
| Authors: | WU Guo-xi ZHANG Guo-sheng WANG Lin-he Qin Yan WU Jun-yi HAO Yun-long YU Siqin-gaowa |
| |
| Abstract: | 7sampling sites on the north of Developing and Managing Research Center in Mu Us Sandland were chosen.The sites were classified into three types which named as Sabina vulgariscommunity,Sabina vulgariscluster and the Artemisia ordosicacommunity according to the physiognomy of constructive species'.Soil coring method was used to obtain the roots randomly,sampling five times in a growth seasonl,and the soil water content,branch growing length and some climate factors were measured at the same time.The living fine roots were classified into two parts according to the diameter and the dry weight.The results showed the fine roots which have different diameter scales have different seasonal dynamics,so do the fine roots which have the same diameter scale in different depth.①The fine root of D≤2 mm(D is diameter of root) for both S.vulgarisand A.ordosica have a rapid increase stage in Apr.to May,the following month show difference pattern.②The fine root of 1 mm
|
| |
| Keywords: | Sabina vulgaris Artemisia ordorsica fine root production dynamics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
