文档介绍：
松嫩平原杨树防护林球囊霉素相关土壤蛋
白的差异分析#
王琼,仲召亮,武燕,任洁,裴忠雪,王文杰**
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(东北林业大学森林植物生态学教育部重点实验室,哈尔滨 150040)
摘要:本文以松嫩平原 72 个杨树防护林带为对象,分别采集 0~20cm、20~40cm、40~60cm、
60~80cm 和 80~100cm 5 个土层土样,通过测定土壤 pH、容重、含水量、电导率和球囊霉素
相关土壤蛋白(GRSP)含量,旨在探讨松嫩平原杨树防护林 GRSP 的差异变化及产生的原
因。结果显示,松嫩平原地区球囊霉素相关土壤蛋白在不同的地点和土层深度之间表现出显
著差异(P<),其中不同地点 0-100cm 土层中总球囊霉素相关土壤蛋白(TG)平均含
量为 ~,TG 平均储量为 ~,易提取球囊霉素相关土壤蛋白(EEG)
平均含量为 ~,EEG 平均储量为 ~。不同土层具有明显的垂直
分布特征,随土层深度的增加整体表现出下降趋势。不同地点及土壤深度土壤理化性质的差
异可能是 GRSP 差异的主要原因,pH、容重与土壤 TG、EEG 含量及储量均存在显著负相关
(P<),含水量与土壤 TG、EEG 含量及储量均存在显著正相关(P<),但是电导
率与土壤 TG、EEG 含量及储量相关性不显著(P>),说明不同地点及不同深度之间的
含水量、容重及 pH 值变化对杨树防护林内球囊霉素土壤相关蛋白分泌相关 AM 真菌均有影
响,但数据统计分析发现 pH 变化对差异的影响最大。
关键词:球囊霉素相关土壤蛋白(GRSP);AM 真菌;pH;容重;含水量
中图分类号:
Differences of Glomalin Related Soil Protein of Poplar
Shelterbelt Soil in Songnen Plain
WANG Qiong, ZHONG Zhaoliang, WU Yan, REN Jie, PEI Zhongxue, WANG
Wenjie
(Key Laboratory of Forest Plant Ecology Ministry of Education, Northeast Forestry University,
Harbin, . 150040, China)
Abstract: Seventy-two poplar shelterbelts in Songnen Plain were selected as research materials in
this study. Soil samples were collected from soil layers of 0~20cm, 20~40cm, 40~60cm, 60~80cm
and 80~100cm respectively. Soil pH, soil bulk density, soil moisture, soil electrical conductivity
and content of Glomalin Related Soil Protein (GRSP) including easily extracted GRSP (EEG) and
Total GRSP (TG) in these samples were determined for identifying GRSP spatial differences in
Songnen Plain and possible relations to soil physicochemical properties. Significant differences in
quantity (content and storages) of EEG, TG were observed among different locations and soil
layers (P<). The distribution of EEG and TG on soil profile was characterized as significant
decreases with soil depth. In different locations on average of 0~100cm soil, TG content ranged
from to , and i