Arid Zone Research ›› 2022, Vol. 39 ›› Issue (4): 1143-1154.doi: 10.13866/j.azr.2022.04.15
• Plant Ecology • Previous Articles Next Articles
QIANG Yuquan1(),XU Xianying1,2(),ZHANG Jinchun2,LIU Hujun2,GUO Shujiang2,DUAN Xiaofeng2
Received:
2021-11-09
Revised:
2022-03-16
Online:
2022-07-15
Published:
2022-09-26
Contact:
Xianying XU
E-mail:1172243258@qq.com;xyingxu@163.com
QIANG Yuquan,XU Xianying,ZHANG Jinchun,LIU Hujun,GUO Shujiang,DUAN Xiaofeng. Characteristics of stem sap flow of Haloxylon ammodendron and its response to environmental factors in Qingtu Lake, Minqin[J].Arid Zone Research, 2022, 39(4): 1143-1154.
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Tab. 2
Correlation analysis between stem sap flow and meteorological factors at daily scale"
直径/cm | 月份 | 气温 | 相对湿度 | 净辐射 | 饱和水汽压差 | 风速 |
---|---|---|---|---|---|---|
T/℃ | RH/% | Rn/(W·m-2) | VPD/kPa | Ws/(m·s-1) | ||
S1=4.97 | 5 | 0.812** | -0.756** | 0.858** | 0.711** | 0.577** |
6 | -0.008 | 0.335 | 0.230 | -0.126 | 0.465 | |
7 | 0.558** | -0.724* | 0.512** | 0.557** | 0.491* | |
8 | 0.465** | -0.202 | 0.357* | 0.229 | 0.169* | |
9 | 0.447** | -0.677** | 0.591* | 0.213 | 0.646** | |
10 | 0.531* | -0.852** | 0.724** | 0.681** | 0.704** | |
S2=5.23 | 5 | 0.801** | -0.711** | 0.548** | 0.644** | 0.630** |
6 | 0.182 | 0.112 | -0.180 | 0.557* | 0.228 | |
7 | 0.458* | -0.727** | 0.582** | 0.582** | 0.752** | |
8 | 0.562** | -0.512** | 0.441** | 0.603** | 0.571** | |
9 | 0.656** | -0.585** | 0.551* | 0.629** | 0.618** | |
10 | 0.433* | -0.619** | -0.181 | 0.657** | 0.633** | |
S3=5.69 | 5 | 0.811** | -0.332** | 0.803** | 0.712** | 0.415** |
6 | 0.312 | 0.165 | 0.212 | 0.314 | -0.256 | |
7 | 0.609** | -0.465** | 0.644** | 0.768** | 0.580** | |
8 | 0.516** | -0.471** | 0.526** | 0.571** | 0.557** | |
9 | 0.692** | -0.616** | 0.575** | 0.448* | 0.605** | |
10 | 0.525** | -0.428* | 0.412 | 0.632** | 0.457* | |
S4=7.40 | 5 | 0.551** | -0.609* | 0.824** | 0.653* | 0.445* |
6 | 0.029 | 0.144 | 0.183 | -0.124 | 0.064 | |
7 | 0.721** | -0.846** | 0.651** | 0.715** | 0.622** | |
8 | 0.754** | -0.610* | 0.597** | 0.773** | 0.243 | |
9 | 0.844** | -0.313** | 0.803** | 0.736** | 0.337** | |
10 | 0.206 | 0.058 | 0.457** | 0.150 | 0.078 | |
平均直径 | 5 | 0.743** | -0.602** | 0.758** | 0.680** | 0.516** |
6 | 0.128 | 0.189 | 0.112 | -0.155 | 0.125 | |
7 | 0.586** | -0.691** | 0.597** | 0.655** | 0.605** | |
8 | 0.544** | -0.448** | 0.480** | 0.574** | 0.385** | |
9 | 0.659** | -0.547** | 0.630** | 0.506** | 0.551** | |
10 | 0.423* | -0.160 | 0.553** | 0.430* | 0.068 |
Tab. 3
Correlation analysis of hour-scale stem sap flow and meteorological factors"
直径/cm | 天气状况 | 气温 | 相对湿度 | 净辐射 | 饱和水汽压差 | 降雨量 |
---|---|---|---|---|---|---|
T/℃ | RH/% | Rn/(W·m-2) | VPD/kPa | Rain/mm | ||
S1=4.97 | 晴天 | 0.765** | -0.714** | 0.791** | 0.769** | - |
雨天 | 0.376 | -0.631** | 0.850** | 0.677** | 0.470** | |
S2=5.23 | 晴天 | 0.762** | -0.712** | 0.746** | 0.772** | - |
雨天 | 0.392 | -0.705** | 0.752** | 0.740** | 0.488** | |
S3=5.69 | 晴天 | 0.816** | -0.771** | 0.765** | 0.787** | - |
雨天 | 0.450* | -0.584** | 0.853** | 0.737** | 0.513** | |
S4=7.40 | 晴天 | 0.554** | -0.510* | 0.671** | 0.681** | - |
雨天 | 0.505* | -0.621** | 0.878** | 0.751** | 0.546** | |
平均直径 | 晴天 | 0.714** | -0.665** | 0.759** | 0.771** | - |
雨天 | 0.436* | -0.658** | 0.707** | 0.740** | 0.513** |
Tab. 4
Correlation analysis between sap flow rate and soil moisture"
土层/cm | 晴天 | 雨天 | |||||||
---|---|---|---|---|---|---|---|---|---|
S1 | S2 | S3 | S4 | S1 | S2 | S3 | S4 | ||
5 | 0.009 | -0.084 | -0.161 | 0.178 | 0.211 | 0.224 | 0.203 | 0.197 | |
20 | -0.062 | -0.155 | -0.227 | 0.116 | 0.181 | 0.179 | 0.181 | 0.175 | |
50 | -0.760** | -0.781** | -0.722** | -0.837** | 0.192 | 0.119 | 0.188 | 0.176 | |
100 | 0.589** | 0.621** | 0.574** | 0.689** | 0.235 | 0.329 | 0.193 | 0.245 |
Tab. 5
Comparison of water consumption of Haloxylon ammodendron in different conditions"
梭梭类型 | 监测时间/地点 | 测定方法 | 梭梭直径/cm | 日耗水量/总耗水量/kg | 文献 |
---|---|---|---|---|---|
原生梭梭 | 4—9月/ 古尔班通古特沙漠 | 热脉冲法 | 7.8~9 | 2.5~4.6/ 400~500 | [ |
原生梭梭 | 6—11月/ 巴丹吉林沙漠 | 热扩散法 | 9.9~13.66 | 2.0~8.3/ 495~1232 | [ |
原生梭梭 | 5—9月/ 古尔班通古特沙漠 | 热扩散法 | 4.55~9.55 | 1.7~3.7/ 511~1145 | [ |
人工梭梭 | 5—9月/ 乌兰布和沙漠 | 热扩散法 | 7~12.5 | 2.8~6.4/ 629~1104 | [ |
人工梭梭 | 6—9月/ 石河子大学农试场 | 热扩散法 | 15.7~21.5 | 4.1~6.8/ 600~925 | [ |
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