摘要
为了探究旅游干扰对喀纳斯景区植被和土壤的碳(C)、氮(N)、磷(P)生态化学计量特征的影响,根据喀纳斯景区游客活动离游道的距离远近、景点吸引游客数量、景点草地植被状况,将样地划分为Ⅰ区、Ⅱ区、Ⅲ区和Ⅳ区4个区域,测定4个不同旅游干扰强度区域植被和土壤的C、N、P含量。结果表明,随着旅游干扰强度的增加,植被和土壤的C、N、P含量均呈递减的趋势,植被和土壤的C∶N、C∶P、N∶P值均随旅游干扰强度的增加而增大;在旅游干扰较强的区域,植物生长易受P限制,旅游干扰弱的区域,植物的生长受N限制。对喀纳斯草地植被与土壤C、N、P含量及生态化学计量特征进行动态监测,可以减轻旅游活动造成的负面影响,有助于喀纳斯景区科学合理的管理。
In order to explore the effects of tourism disturbance on the characteristics of carbon （C）, nitrogen （N） and phosphorus （P） in the vegetation and soil in Kanas Scenic Area, the sample were divided areas into 4 zones： I zone, II zone, m zone and IV zone according to the law of Kanas Scenic Area tourist activities （including hiking, horseback riding, roller compaction, the drift） and the distance of tourism channel, the number of attracted tourist, the conditions of vegetation and the C, N, P contents in vegetation and soil of these four different zones were measured. The results showed that the contents of N, P and C in both vegetation and soil decreased with the increase of the tourism disturbance intensity. The ratios of C ： N, C = P and N ： P in vegetation and soil increased with the increase of the tourism disturbance intensity. Dynamic monitoring of C, N and P in vegetation and soil can reduce the negative impacts of tourism disturbance and contribute to the scientific and rational management of Kanas Scenic Area.
出处
《草业科学》
CAS
CSCD
北大核心
2016年第8期1476-1485,共10页
Pratacultural Science
基金
国家自然科学基金项目(31460636)
中国科学院战略性先导科技专项--应对气候变化的碳收支认证及相关问题(XDA05050405)
关键词
喀纳斯景区
旅游干扰
生态化学计量
游道距离
植被与土壤
Kanas Scenic Area
tourism disturbance
ecological stoichiometry
distance of tourism channel
vegetation and soil
