小叶锦鸡儿灌丛下土壤水分对降雨的响应

生态学杂志

小叶锦鸡儿灌丛下土壤水分对降雨的响应

李衍青^1,2,孙英杰^3**,张铜会²,罗为群¹,邓艳¹,刘新平²

（¹中国地质科学院岩溶地质研究所，广西桂林 541000； ²中国科学院寒区旱区环境与工程研究所，兰州 730000； ³中国科学院/广西壮族自治区广西植物研究所，广西桂林 541000）

出版日期:2013-05-10 发布日期:2013-05-10

Responses of soil moisture under shrub Caragana microphylla to rainfall.

LI Yan-qing^1,2, SUN Ying-jie^3**, ZHANG Tong-hui², LUO Wei-qun¹, DENG Yan¹, LIU Xin-ping²

(¹Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541000, Guangxi, China; ^2Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; ³Guangxi Institute of Botany, the Chinese Academy of Sciences, Guilin 541000, Guangxi, China)

Online:2013-05-10 Published:2013-05-10

摘要/Abstract

摘要： 以科尔沁沙地主要固沙灌木小叶锦鸡儿为研究对象，在其生长季次降雨21.5 mm后180 h内，利用TDR和微渗仪测量小叶锦鸡儿灌丛下不同部位的土壤含水量和土壤蒸发，并计算该灌丛下不同部位储水量和水量平衡。结果表明：降雨结束后初期，灌丛枝干的茎流作用使其根部的土壤含水量明显高于其他部位；灌丛根部水分的入渗速率大于灌丛中部和灌丛外缘。因冠幅的庇荫作用，灌丛下蒸发量小于灌丛外裸露沙地。水量平衡表明：小叶锦鸡儿灌丛下降雨后前期蒸散量明显高于灌丛外裸露沙地，与灌丛下根系的分布有直接关系。

关键词: 撂荒地, 演替阶段, 植物群落, 土壤抗蚀性

Abstract: Taking the soil under the main sand-fixing shrub Caragana microphylla in Horqin Sandy Land of Northwest China as test object, and by using TDR and microlysimeter, this paper measured the soil moisture content and soil evaporation at different positions under the shrub within 180 h after a 21.5 mm rainfall during growth season, and calculated the water storage and water balance at the different positions. During the early period of the rainfall ended, the stemflow of the shrub made the soil moisture content in root zone being obviously higher, and the infiltration rate in root zone was faster than that in other positions. Due to the canopy shading, the soil evaporation under the shrub was less than that in the bared sand outside the shrub. The water balance showed that in the early period after rainfall, the evapotranspiration under the shrub was obviously higher than in the bared sand outside the shrub, which had a direct correlation with the root distribution under the shrub.

Key words: abandoned land, , succession stage, plant community, soil antierodibility.

李衍青1,2,孙英杰3**,张铜会2,罗为群1,邓艳1,刘新平2. 小叶锦鸡儿灌丛下土壤水分对降雨的响应[J]. 生态学杂志.

LI Yan-qing1,2, SUN Ying-jie3**, ZHANG Tong-hui2, LUO Wei-qun1, DENG Yan1, LIU Xin-ping2. Responses of soil moisture under shrub Caragana microphylla to rainfall.[J]. cje.

[1]	杜忠毓, 贺一鸣, 房朋朋, 段义忠, 鲁客. 孑遗濒危植物四合木群落组成、物种多样性及土壤养分含量 [J]. 生态学杂志, 2020, 39(11): 3537-3548.
[2]	马志良,赵文强. 植物群落向土壤有机碳输入及其对气候变暖的响应研究进展 [J]. 生态学杂志, 2020, 39(1): 270-281.
[3]	杜华栋,宋世杰,张勇,张亦扬. 彬长矿区不同地表沉陷类型下植物群落特征 [J]. 生态学杂志, 2019, 38(5): 1520-1527.
[4]	珊丹,邢恩德,荣浩,刘艳萍,梁占岐. 草原矿区排土场不同植被配置类型生态恢复 [J]. 生态学杂志, 2019, 38(2): 336-342.
[5]	程莅登,邓洪平,何松,顾梨,瞿欢欢. 长江重庆段消落区植物群落分布格局与多样性 [J]. 生态学杂志, 2019, 38(12): 3626-3634.
[6]	韩煜,王琦,赵伟,史娜娜,肖能文,张周爱,全占军. 草原区露天煤矿开采对土壤性质和植物群落的影响 [J]. 生态学杂志, 2019, 38(11): 3425-3433.
[7]	李巧燕,来利明,周继华,姜联合,杨柳,易三桂,孙清琳,郑元润. 鄂尔多斯高原草地灌丛化不同阶段主要植物水分利用特征 [J]. 生态学杂志, 2019, 38(1): 89-96.
[8]	徐俏,叶茂,徐海量,王希义,赵新风. 塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响 [J]. 生态学杂志, 2018, 37(9): 2603-2610.
[9]	尤业明,吴溪玭,明安刚,刘通,陈永康,朱宏光,温远光,廖树寿,黄雪蔓. 南亚热带典型针叶林改造成乡土阔叶林后林下植物功能群的变化及其环境解释 [J]. 生态学杂志, 2018, 37(11): 3194-3201.
[10]	陈宝强,张建军,赵荣玮,孙若修,李梁,茹豪,王雅琼. 晋西黄土区陡坡植被自然恢复评价 [J]. 生态学杂志, 2018, 37(1): 17-25.
[11]	蓝鑫,吕靖,马靖宇,梁杭海,王海粟,杨娟*. 北京十渡水库浮游植物群落昼夜垂直分布特征 [J]. 生态学杂志, 2017, 36(7): 1877-1884.
[12]	王国明*,叶波. 舟山群岛典型植物群落物种组成及多样性 [J]. 生态学杂志, 2017, 36(2): 349-358.
[13]	薛鸥,魏天兴*,朱金兆. 环境因子对北京低山区低效林林下植被物种组成和丰富度的影响 [J]. 生态学杂志, 2016, 35(9): 2321-2328.
[14]	徐文轩1,连仲民1,2,徐婷3,杨维康1*,吴珂1,2,David . 新疆准噶尔盆地荒漠草地水源圈植物群落退化格局 [J]. 生态学杂志, 2016, 35(1): 104-110.
[15]	张骁栋,康晓明,李春义,崔丽娟**,王小文. 排水对三江平原和若尔盖沼泽生态影响的比较 [J]. 生态学杂志, 2015, 34(7): 2030-2040.