CORE
CO
nnecting
RE
positories
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Research partnership
About
About
About us
Our mission
Team
Blog
FAQs
Contact us
Community governance
Governance
Advisory Board
Board of supporters
Research network
Innovations
Our research
Labs
极度干旱区设施蔬菜地土壤硝态氮的分布特征/Nitrate - nitrogen distribution in intensive plantation Held in extreme arid are a, Xinjiang, northwestern China[J]
Authors
TIAN Changyan
ZHOU Guangtao
+4 more
中国科学院新疆生态与地理研究所,绿洲生态与荒漠重点实验室,乌鲁木齐,830011
中国科学院研究生院,北京,100049
周光涛
田长彦
Publication date
1 January 2011
Publisher
Abstract
设施农业中过量施肥和灌溉不仅降低肥料利用率,且容易引发硝酸盐污染风险.以库尔勒英下乡露天菜地为参照,对该地大棚菜地年度氮素输入量、土壤剖面硝态氮累积特征,以及地下水硝态氮含量进行了研究.结果表明:氮素年度输入量大棚菜地>露天菜地;两种种植方式0-180cm土壤均出现了硝酸盐的明显累积,大棚菜地硝态氮累积量随种植年限的增长而升高,并表现出明显的底层累积(60-180cm)特征,但均未超过露天菜地;对地下水调查发现硝态氮超标率达86.36%,对当地居民身体健康造成潜在威胁.因此,必须采取合理的农业管理措施,提高绿洲农业生态系统的氮肥利用率
Similar works
Full text
Available Versions
Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.xjlas.org:365004/13013
Last time updated on 29/11/2016