摘要
本文基于2014-2016年的降雨量数据,在元谋干热河谷区林地采用全面整地、带状整地、地膜覆盖和集水面硬化4种集水保水措施对土壤储水量影响进行研究。结果表明,元谋干热河谷降水量等级主要以小雨和中雨为主,是产生地表径流的主要降雨来源,发生暴雨级以上降水的概率不到2%。采用全面整地、带状整地、地膜覆盖和集水面硬化措施后与自然坡地相比均能显著提高林地0-50cm土层的土壤储水量,采用集水面硬化处理、地膜覆盖、全面整地和带状整地措施后土壤储水量分别是自然坡面储水量的1. 21倍、2. 62倍、1. 78倍和1. 08倍。
Based on the basis of the variation characteristics of precipitation in 2014-2016,the soil water storage that adopt whole soil preparation,band ploughing,plastic film mulching and catchments hardening measures in Yuanmou dry-hot valleys area were studied. The results showed that the annual rainfall grade were mainly light rain and moderate rain,is the main source of surface runoff. The heavy rain magnitude precipitation rate is less than2%. Four different measures all can significantly improve soil water storage of 0-50 cm soil layer and the water storage is greater than the natural slope,especially in the dry season. The soil water storage was 1. 21 times,2. 62 times,1. 78 times and 1. 08 times of the natural slope water storage after the treatment of catchments hardening,mulching,whole soil preparation,band ploughing in the dry season respectively.
作者
赵和琼
谷丽萍
郑科
裴艳辉
孔继君
郭永清
李光华
张明友
ZHAO He-qiong;GU Li-ping;ZHENG Ke;PEI Yan-hui;KONG Ji-jun;GUO Yong-qing;LI Guang-hua;ZHANG Ming-you(Yuanmou County Forestry Bureau,Yuanmou Yunnan 651300,P.R.China;Yunnan Academy of Forestry,Kunming Yunnan 650201,P.R.China)
出处
《西部林业科学》
CAS
北大核心
2018年第6期85-89,100,共6页
Journal of West China Forestry Science
基金
云南省科技惠民计划"干热河谷区抗旱型生态林业模式构建与示范"(2014RA017)
