摘要
[目的]研究不同条件下昆明海口磷矿山复垦区的土壤含水量，旨在为该地植被复垦提供科学依据。[方法]选择昆明海口磷矿山复垦区为试验区，分别测定不同植被条件下不同土壤深度、不同时间段、不同人为因素影响下以及降雨前后的土壤含水量。[结果]矿山复垦区0～80 cm土层土壤含水量差异不大；下午土壤含水量高于上午；果林土壤含水量高于蔬菜地；未翻耕地土壤含水量高于翻耕地，且翻耕后覆膜的土壤含水量较高；降雨1 d后的土壤含水量较高，降雨后土壤含水量较降雨前高出15％左右。[结论]复垦区土壤含水量与土壤深度、时间段、人为因素、降雨等条件有关。
Abstract
Objective] The aim was to study soil moisture in reclamation area of Haikou phosphate mining site in Kunming , to provide scien-tific basis for vegetation reclamation.[Method] Soil moisture in different vegetation conditions, soil depth, time periods, human factors, be-fore and after precipitation were determined in reclamation area of Haikou phosphate mining site, Kunming.[Result] The results showed that:mine reclamation area shallow(0-80 cm) soil moisture content have not change clearly with the depth increase; the soil moisture content in afternoon is higher than that in morning;the soil moisture content in fruit jungle is higher than that in vegetable field;the soil moisture content in without plowed field is higher than that in plowed field, and the soil moisture content in plastic covered field is higher than the field which without covered; soil moisture maintains the high content after a day of rainfall, and the soil moisture content is about 15 percent higher than before.[Conclusion] Soil moisture in reclamation area is related to soil depth, time, human factors, precipitation and so on.
基金项目
科研院所创新能力专项资金项目(2014EG115019)
国家科技期刊平台
NSTL
维普
万方数据