典型小流域喀斯特石漠化演变特征及其关键表征因子与驱动因素
Evolution characteristics of karst rocky desertification in typical small watershed and the key characterization factor and driving factor
查看参考文献30篇
|
文摘
|
中国西南喀斯特区域土地石漠化生态灾难已经严重制约了经济和社会的发展,而对石漠化进行治理,其空间分布信息的准确提取是必不可少的。针对现有石漠化信息提取技术存在不可能发生喀斯特石漠化(Impossible to develop karst rocky desertification,IKRD)范围提取不准确,关于石漠化的时空演变分析较少及其驱动因子、表征因子繁杂等问题,本文以典型喀斯特流域后寨河流域为研究对象,基于高精度影像识别提取IKRD范围,利用植被覆盖度、岩石裸露率对研究区域准确提取石漠化信息,揭示该区域不同石漠化等级的时空演变规律,同时探明石漠化分布与地表反照率、坡度的相关性。研究结果表明:(1) 2005年至2010年后寨河流域石漠化程度整体在恶化,在后寨河流域西南部分和中部极少区域石漠化程度有所减轻,其余区域基本未发生变化,而在2010年至2015年后寨河流域石漠化程度大部分区域都呈减轻状态,而且石漠化程度减轻强度较大,在南侧大部分区域石漠化程度都呈减轻状态,且强度较大。(2)2005年至2010年后寨河流域石漠化程度减轻、未发生变化以及加重的面积分别为4.23 km~2、25.736 km~2、20.81 km~2,各部分面积占比分别为8.3%、50.7%、41%。(3)2010年至2015年后寨河流域石漠化程度减轻、未发生变化以及加重的面积分别为31.87 km~2、16.57 km~2、6.85 km~2,各部分面积占比分别为57.6%、30%、12.4%。(4)石漠化区域的坡度、地表反照率主要集中在2° — 22° 、0.12-0.21之间,而且随着坡度值的增加,潜在石漠化、重度石漠化面积占比增高,轻度石漠化和中度石漠化面积占比降低,随着地表反照率增加潜在石漠化、轻度石漠化面积占比增高,重度石漠化面积占比降低。综上所述,在2005年至2015年间,后寨河流域石漠化演变因贵州省2008年至2010年开始实施退耕还林还草等石漠化综合治理工程而呈现先恶化,后减轻的状态,同时通过对该区域石漠化分布与地表反照率、坡度的相关分析发现,地表反照率和坡度可以作为石漠化研究的辅助表征因子和驱动因子。 |
|
其他语种文摘
|
The ecological disaster of karst rocky desertification in the karst area of southwestern China has severely restricted the economic and social development. To control karst rocky desertification, accurate extraction of its spatial distribution information is indispensable. We consider the problems of inaccurate extraction of impossible to develop karst rocky desertification (IKRD) range, less analysis of the temporal and spatial evolution of karst rocky desertification, complicated driving factors and characterization factors, which exist in the existing technology of karst rocky desertification information extraction. This paper takes the typical karst basin-Houzhai River Basin as the research area. We extracted IKRD range based on high resolution image and using fractional vegetation coverage and rock exposure rate to accurately extract karst rocky desertification information from the study area. We want to reveal the evolution law of different karst rocky desertification levels in this area, and prove the correlation between the distribution of karst rocky desertification and the distribution of surface albedo and slope. The results showed that: (1) from 2005 to 2010,the karst rocky desertification of Houzhai River Basin as a whole has deteriorated. Few central parts of the southwestern has been alleviated,while the rest of the area has not changed. However, most areas of karst rocky desertification in the Houzhai River Basin have been alleviated from 2010 to 2015, and the degree of karst rocky desertification has been reduced significantly, which was more evident in most areas of the southern part in the Houzhai River, and the intensity was relatively high. (2) From 2005 to 2010,the area of karst rocky desertification with alleviated, unchanged, and aggravated were 4.23 km~2,25.74 km~2 and 20.81 km~2, accounting for about 8.3%, 50.7%, and 41.0%, respectively. (3) From 2010 to 2015, the area of karst rocky desertification with alleviated, unchanged, and aggravated were 31.87 km~2,16.57 km~2 and 6.85 km~2,accounting for about 57.6%, 30.0% and 12.4%, respectively. (4) The slope and surface albedo of karst rocky desertification area were mainly concentrated between 2°-22° and 0.12-0.21. With the increase of slope, the proportion of potential karst rocky desertification, and severe karst rocky desertification increases, the proportion of light karst rocky desertification and moderate karst rocky desertification decreased. With the increase of surface albedo, the proportion of potential karst rocky desertification and light karst rocky desertification increased, and the proportion of severe karst rocky desertification decreased. In summary, from 2005 to 2015, the evolution of karst rocky desertification in Houzhai River Basin was firstly deteriorated and then alleviated due to the implementation of comprehensive karst rocky desertification control projects such as returning farmland to forests and grasslands in Guizhou Province from 2008 to 2010. At the same time, the correlation analysis between the distribution of karst rocky desertification and the distribution of the surface albedo slope showed that the surface albedo and slope could be used as auxiliary characterization factors and driving factors to karst rocky desertification research. |
|
来源
|
生态学报
,2019,39(16):6083-6097 【核心库】
|
|
DOI
|
10.5846/stxb201902170278
|
|
关键词
|
石漠化信息提取
;
植被覆盖度
;
岩石裸露率
;
地表反照率
|
|
地址
|
1.
中国科学院大学地球化学研究所,月球与行星科学研究中心, 贵阳, 550081
2.
中国科学院大学, 北京, 100049
3.
中国科学院大学地球化学研究所, 贵州省科技厅普定喀斯特研究综合试验站, 安顺, 562100
4.
中国科学院大学地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-0933 |
|
基金
|
国家重点研发计划
;
“西部之光”人才培养计划(A类)
;
贵州省项目
|
|
文献收藏号
|
CSCD:6561819
|
参考文献 共
30
共2页
|
|
1.
Yuan D X. Rock desertification in the subtropical Karst of South China.
Zeitschrift fur Geomorphologie N. F,1997,108:81-90
|
CSCD被引
96
次
|
|
|
|
|
2.
王世杰. 喀斯特石漠化概念演绎及其科学内涵的探讨.
中国岩溶,2002,21(2):101-105
|
CSCD被引
242
次
|
|
|
|
|
3.
熊康宁. 典型喀斯特石漠化治理区水土流失特征与关键问题.
地理学报,2012,67(7):878-888
|
CSCD被引
154
次
|
|
|
|
|
4.
李阳兵. 喀斯特石漠化与土地利用相关性研究.
资源科学,2006,28(2):67-73
|
CSCD被引
21
次
|
|
|
|
|
5.
姚远. 喀斯特石漠化遥感信息提取方法综述.
测绘与空间地理信息,2016,39(12):64-67
|
CSCD被引
5
次
|
|
|
|
|
6.
陈起伟. 基于遥感光谱特征的喀斯特石漠化信息提取.
贵州师范大学学报:自然科学版,2003,21(4):82-87
|
CSCD被引
15
次
|
|
|
|
|
7.
吴风志. 基于OLI数据的云南禄劝县石漠化敏感性评价.
测绘与空间地理信息,2017,40(11):83-86,89-89
|
CSCD被引
1
次
|
|
|
|
|
8.
夏学齐. 石漠化程度遥感信息提取方法研究.
遥感学报,2006,10(4):469-474
|
CSCD被引
15
次
|
|
|
|
|
9.
Huang Q H. Mapping karst rock in Southwest China.
Mountain Research and Development,2009,29(1):14-20
|
CSCD被引
9
次
|
|
|
|
|
10.
张晓伦. 基于NDRI像元二分模型的石漠化信息提取研究.
新技术新工艺,2014(1):72-75
|
CSCD被引
7
次
|
|
|
|
|
11.
岳跃民. 石漠化遥感评价因子提取研究.
遥感学报,2011,15(4):722-736
|
CSCD被引
18
次
|
|
|
|
|
12.
涂杰楠. 基于RapidEye遥感影像的比值密度分割法在岩溶石漠化调查中的应用--以云南鹤庆县为例.
中国岩溶,2015,34(3):298-307
|
CSCD被引
8
次
|
|
|
|
|
13.
朱大运. 基于植被指数的GF-1与Landsat-OLI石漠化识别能力对比评价.
自然资源学报,2016,31(11):1949-1957
|
CSCD被引
7
次
|
|
|
|
|
14.
岳跃民. 喀斯特石漠化信息遥感提取的不确定性.
地球科学进展,2011,26(3):266-274
|
CSCD被引
20
次
|
|
|
|
|
15.
童立强. 西南岩溶石山地区石漠化信息自动提取技术研究.
国土资源遥感,2003(4):35-38
|
CSCD被引
24
次
|
|
|
|
|
16.
Li Y B. The evolution of a karst rocky desertification land ecosystem and its driving forces in the Houzhaihe Area, China.
Open Journal of Ecology,2015,5(10):501-512
|
CSCD被引
4
次
|
|
|
|
|
17.
Xu E Q. A spatial simulation model for karst rocky desertification combining top-down and bottom-up approaches.
Land Degradation & Development,2018,29(10):3390-3404
|
CSCD被引
2
次
|
|
|
|
|
18.
涂杰楠. 南洞地下河流域南部岩溶石漠化空间分布特征分析.
中国岩溶,2016,35(5):566-573
|
CSCD被引
6
次
|
|
|
|
|
19.
杨奇勇. 基于地统计学和遥感的岩溶区石漠化空间变异特征.
农业工程学报,2012,28(4):243-247
|
CSCD被引
25
次
|
|
|
|
|
20.
Sheng M Y. Response of soil physical and chemical properties to Rocky desertification succession in South China Karst.
Carbonates and Evaporites,2018,33(1):15-28
|
CSCD被引
22
次
|
|
|
|
|
了解气象卫星更多信息，请访问