黄土高原沟壑区不同施肥条件下土壤水分的分析

Analysis of Soil Moisture Under the Condition of Different Fertilization in Gully Area of the Loess Plateau

土壤水分是土壤的非常重要的一部分,是植物生长以及微生物活动的基本条件,水分的充足与否与植物能否存活、生长好坏有着莫大的牵连。在长武长期连续定位试验设三种施肥处理:A:设施有机肥(羊粪),施肥量为30000 kg/hm^2;B:施秸秆,施肥量为9000 kg/hm^2;C:不施肥,以AO(施有机肥,不种植物)、BO(施秸秆、不种植物)、CK(不施肥、不种植物)作为对照,探寻植物在单播、混播模式下对不同施肥条件下土壤水分效果。在长武长期连续定位试验数据基础上,采用实地种植和长期观测相结合的研究方法,定量模拟研究了不同施肥条件下土壤水分规律,为该地区合理利用降水资源进行生态环境建设、土壤水资源的持续高效利用和农业生产提供依据。

Soil moisture is a very important part of the soil and the basic condition for plant growth and microbial activity. Long-term continuous and positioning experiment was carried out in Changwu and three kinds of fertilizer were applied: A: organic fertilizer( sheep and goat manure) with 30000 kg/hm^2; B: straw with 9000 kg/hm^2; C: no fertilizer. With AO( organic fertilizer and no plant),BO( straw and no plant) and CK( no fertilizer and plant) as a comparison,the effect of soil moisture on plant in unicast and mixed modes under different fertilization conditions was explored. Based on the longterm continuous and positioning experiment data, field cultivation and long-term observation were combined to simulate quantitatively and study the law of soil moisture under different fertilization,which will provides the basis for the rational use of rainfall resources for ecological environment construction,the sustainable and efficient use of soil water and agricultural production.