| 聚乳酸纤维沙障对植被生长的影响——以巴音温都尔沙漠封禁保护区为例 |
| |
| 引用本文： | 李莹,曲浩,石永强,张志军,佟布和,曹辉,张明,吴晶.聚乳酸纤维沙障对植被生长的影响——以巴音温都尔沙漠封禁保护区为例[J].内蒙古林业科技,2020,46(1):12-15. |
| |
| 作者姓名： | 李莹 曲浩 石永强 张志军 佟布和 曹辉 张明 吴晶 |
| |
| 作者单位： | 内蒙古乌拉特后旗林业和草原局,内蒙古 巴彦淖尔015543;中国科学院西北生态环境资源研究院乌拉特荒漠草原研究站,甘肃 兰州730000 |
| |
| 基金项目： | 国家重点研发计划课题(2016YFC0500506);内蒙古自治区乌拉特后旗巴音温都尔沙漠沙化土地封禁保护补助试点项目(蒙林规-2015-182);国家自然科学基金面上项目(41877540)资助。 |
| |
| 摘 要： | 巴音温都尔沙漠的治理关乎整个河套平原的生态安全,然而,由于降水少,植被盖度低,导致其治理难度大。聚乳酸纤维沙障具有便于移动、使用寿命长、可生物降解无污染的特点,具有较好的发展前景。本研究将聚乳酸纤维沙障应用于巴音温都尔沙漠封禁保护区,并对其影响下植被的盖度、生物量及土壤的水分含量等指标进行为期4 a的监测。结果表明:(1)自沙障布设的第2 a起,沙障内的植被盖度和土壤含水量显著提高(P<0.05);(2)沙障内的植被地上生物量自沙障布设的第2 a起便开始显著增加,而地下生物量自沙障布设的第4 a起才显著增加(P<0.05)。总体来看,聚乳酸纤维沙障可通过提高土壤含水量来促进植被生长,可作为生物固沙难以实施区域的固沙措施,但其效果还有待更长期的研究。
|
| 关 键 词： | 聚乳酸纤维沙障 巴音温都尔沙漠 植被盖度 生物量 土壤含水量 |
Effect of PLA Sand Barrier on Vegetation Growth--A case study in the enclosure-conservation district of Bayinwenduer Desert |
| |
| LI Ying,QU Hao,SHI Yong-qiang,ZHANG Zhi-jun,TONG Bu-he,CAO Hui,ZHANG Ming,WU Jing.Effect of PLA Sand Barrier on Vegetation Growth--A case study in the enclosure-conservation district of Bayinwenduer Desert[J].Inner Mongolia Forestry Science and Technology,2020,46(1):12-15. |
| |
| Authors: | LI Ying QU Hao SHI Yong-qiang ZHANG Zhi-jun TONG Bu-he CAO Hui ZHANG Ming WU Jing |
| |
| Institution: | (Forestry and Grassland Bureau of Urad Rear Banner,Bayannur,Inner Mongolia,Urad Rear Banner 015543,China;Urad Desert Steppe Research Station,Northwest Institute of Eco-environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China) |
| |
| Abstract: | The management of Bayinwendur Desert is related to the ecological security of the entire Hetao Plain.However,it is difficult because of the scarce precipitation and low vegetation coverage.PLA sand barrier has good prospects in desert restoration with the characteristics of easy to move,long life and biodegradable pollution-free.In our study,PLA sand barrier was applied to the enclosure-conservation district of Bayinwenduer Desert,and the vegetation coverage,biomass and soil moisture content have been monitored for 4 years.The results show,(1)the PLA sand barrier significantly increased the vegetation coverage and soil water content since the second year of the study(P<0.05).(2)in PLA sand barrier,the aboveground biomass significantly increased from the second year,while the underground biomass increased from the fourth year(P<0.05).Overall,PLA sand barrier can promote vegetation growth by increasing soil water content.And it can be used as a sand fixation method in areas where biological sand fixation is difficult to implement,but a long-term study is required to clarify its effect. |
| |
| Keywords: | PLA sand barrier Bayinwenduer Desert vegetation coverage biomass soil water content |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
