摘要
[目的]探讨宁南山区不同植被恢复方式对土壤理化性质的影响。[方法]对宁南山区典型区域3种不同恢复方式（自然恢复、人工＋自然恢复、坡耕地）不同土壤剖面的土壤物理、化学性质进行了测定分析。[结果]封禁自然恢复植物群落的土壤含水量、土壤总孔隙度及有机质、全氮、全钾含量相对较高，分别为11．39％、55．84％、15．90、1．03、20．6 g／kg，而人工＋自然恢复植物群落、坡耕地的养分含量相对偏低。[结论]综合分析，封禁条件下的自然恢复是宁南山区植被恢复的有效措施。
Abstract
Objective] The aim was to discuss effects of different vegetation restoration measures on soil physical and chemical properties in Southern Ningxia mountainous area.[Method] Soil physical and chemical properties under 3 restoration measures(natural restoration, artificial+natural restoration, sloping farmland) in typical region in Southern Ningxia mountainous area were determined and analyzed.[Result] The re-sults showed that soil moisture, soil porosity, organic matter, total nitrogen, total potassium content of natural restoration were 11.39%, 55.84%, 15.90, 1.03, 20.6 g/kg, respectively, which were higher than those of artificial+natural restoration and sloping farmland.[Conclu-sion] Comprehensive analysis showed that natural restoration is the effective action for restoring the vegetation in the Southern Ningxia mountain-ous region.
基金项目
国家科技支撑计划课题(2015BAC01B01)
宁夏“十三五”重大攻关项目()
宁夏区自然科学基金(NZ14194)
宁夏农林科学院科技创新先导资金项目(NKYJ－15－27)
国家科技期刊平台
NSTL
维普
万方数据