[1]李佳秀,陈亚宁,刘志辉,等.额尔齐斯河流域MOD系统变化及其对气候与人类活动的响应[J].水土保持研究,2018,25(02):250-256,263.
　LI Jiaxiu,CHEN Yaning,LIU Zhihui,et al.Variation of Mountain-Oasis-Desert (MOD) System and Its Response to Climate Change and Human Activities in Irtysh River Basin[J].Research of Soil and Water Conservation,2018,25(02):250-256,263.
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额尔齐斯河流域MOD系统变化及其对气候与人类活动的响应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年02期 页码: 250-256,263 栏目: 出版日期: 2018-04-03
Title:
Variation of Mountain-Oasis-Desert (MOD) System and Its Response to Climate Change and Human Activities in Irtysh River Basin
作者:
李佳秀1,2,3, 陈亚宁2, 刘志辉1, 李稚2
1. 新疆大学 资源与环境科学学院, 乌鲁木齐 830046;
2. 中国科学院 新疆生态与地理研究所 荒漠与绿洲生态国家重点实验室, 乌鲁木齐 830011;
3. 中国科学院大学, 北京 100049
Author(s):
LI Jiaxiu1,2,3, CHEN Yaning2, LIU Zhihui1, LI Zhi2
1. College of Resource and Environment Sciences, Xinjiang University, Urumqi 830046, China;
2. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
MOD系统; 气候变化; 景观格局
Keywords:
MOD system; climate change; landscape pattern
分类号:
P463;TP79
摘要:
运用额尔齐斯河流域内3个典型区域内的遥感影像，并结合气候数据，分析探究了研究区内MOD系统的变化特征及其对气候变化和人类活动的响应。结果表明：（1）研究区气候整体变得暖湿，水热状况趋于良性发展，但温度和降水并不协同变化，各个子系统之间存在很大差异。（2）受人类活动的影响，1999年是研究区景观格局的转折点，景观结构、斑块形状和数量都在一定程度上有所增加。（3）研究区内MOD各个子系统都有其明显特征：山地系统受人类活动影响较小，受气候变化的影响较大，1979年以来，水体和裸地面积略有增加，自然植被面积有所减少，而耕地面积先增加后减少；绿洲系统受气候和人类活动共同的影响较大，天然植被面积自1999年后降低，而耕地面积大幅增加，人类耕作对该区土地利用变化的影响十分明显；荒漠系统增湿率在3个区域最高，但结构单一，区内盐碱化较严重，受绿洲扩张影响，荒地面积自1979年以来显著减少。
Abstract:
Remote sensing images of 3 typical regions in the Irtysh River basin and the related weather data were used to investigate the variation characteristic of mountain-oasis-desert (MOD) system and its response to climate change and human activities. The results show that:(1) the whole study area has becoming warm and humid, and the water-heat conditions tend to be more healthy development, but the changes of temperature and precipitation are not synergy, and great differences exist among subsystems; (2) affected by human activities, the year of 1999 was the turning point of landscape pattern in the study area, landscape structure, patch shape and quantity increased to some extent in this year; (3) each subsystem has distinctive characteristics:the mountain subsystem is less affected by human activities, mainly affected by climate change, after 1979, the water and bear land areas slight increased, nature vegetation decreased and cultivated land increased first and then decreased; the oasis subsystem is both affected by climate and human activities greatly, the nature vegetation area has decreased since 1999, while cultivated land area has increased greatly, which showed that human cultivation obviously changed the land type in this region; the desert subsystem has the highest humidifying rate, but its structure is simple, salinization is severe, wasteland area has shrinked remarkably since 1979 due to the influence of oasis expansion.

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备注/Memo

收稿日期:2017-4-13;改回日期:2017-5-16。
基金项目:中国科学院“西部之光”项目“中亚干旱区蒸散发遥感估算及其时空变化研究”（2015-XBQN-17）
作者简介:李佳秀(1988-),女,陕西大荔人,博士研究生,研究方向为气候变化。E-mail:1428207461@qq.com
通讯作者:陈亚宁(1958-),男,新疆乌鲁木齐人,研究员,博士生导师,主要从事气候与水文变化研究。E-mail:chenyn@ms.xjb.ac.cn

更新日期/Last Update: 1900-01-01