CHEN Shengzi,ZHOU Zhongfa,YAN Lihui.Influence of Human Intervention on Ecosystem Health in the Karst Rock Desertification Controlling Process[J].Research of Soil and Water Conservation,2016,23(02):213-219.
人为干预对石漠化治理过程中生态系统健康的影响
- Title:
- Influence of Human Intervention on Ecosystem Health in the Karst Rock Desertification Controlling Process
- Keywords:
- karst rock desertification; human intervention; ecosystem health; controlling process; plaque
- 分类号:
- X826
- 摘要:
- 人为干预是推动生态系统正向演替的动力，探索人为干预作用于生态系统的影响机制对退化生态系统的改善具有重大意义。以花江石漠化综合治理示范区为例，采用GIS空间分析方法，探索了2000—2010年石漠化治理过程中生态系统健康演变特征，进一步探讨了人为干预对石漠化治理过程中生态系统健康的影响。结果表明：（1）石漠化治理过程中生态系统健康整体上呈改善趋势，病态、不健康和亚健康等级相互转换最为激烈；其中亚健康等级转移最为明显，占总转移面积的38.05%；（2）生态系统健康变化呈时空分异特征，生态系统健康不变区面积所占总面积比例最大，为66.75%，遍布花江示范区绝大部分区域，生态系统健康持续好转区主要分布在石漠化综合治理的村组，局部人为干扰强烈地区出现生态系统恶化或反复多变；（3）不同石漠化综合治理工程对生态系统健康的影响不同，其改善比例依次为：封山育林 > 坡改梯 > 经果林 > 水保林 > 防护林 > 人工种草。
- Abstract:
- Human intervention is the driving force to promote the positive succession of ecological system. To explore the mechanism of human intervention to the ecosystem has the great significance for the improvement of the degraded ecosystem. Taking the demonstration areas of the rock desertification integrated management in Huajiang of Guizhou as an example, using GIS spatial analysis method, we investigated the trend of the ecosystem health evolvement of karst rock desertification controlling process from 2000 to 2010, and deeply explored the main factors influencing the ecosystem health evolvement of karst rock desertification controlling process. The results show that: (1)the ecosystem health presented a trend of improvement in the process of rocky desertification control, Conversion between the morbid, unhealthy and sub-health levels was very intense, among them, the most significance is the level of sub-health, which accounted for 38.05% of the total transfer area; (2) the changes of ecosystem health showed spatial and temporal variation characteristics, the unchanged region of ecosystem health widely distributed in the Huangjiang demonstration area, accounting for 66.75% of the total area, continuous improvement area of ecosystem health mainly distributed in the villages where the rocky desertification control project was carried out, ecosystem heath appeared deterioration or repeated variation in the local strong human disturbance region; (3) the influences of different rocky desertification comprehensive treatment projects on ecosystem health are different, the improvement ratio follows the order: closed forest > slope ladder > planting economic fruit trees > forest for soil and water conservation > protection forests > artificial grass.
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备注/Memo
收稿日期:2015-09-13;改回日期:2015-10-09。
基金项目:国家重点基础研究发展计划（973计划）课题“人为干预下喀斯特山地石漠化的演变机制与调控”（2012CB723202）；贵州省重大应用基础研究项目“喀斯特石漠化生态修复及生态经济系统优化调控研究”（黔科合JZ字[2014]200201）；国家自然科学基金青年项目“喀斯特峰丛洼地地貌形态耦合模式及机制研究”（41301504）；2012年贵州省国际科际合作计划“不同生态恢复措施干预下喀斯特石漠化演变及调控研究”[黔科合外G字（2012）7022号]
作者简介:陈圣子(1991-)女,湖南祁阳人,硕士研究生,主要从事GIS与生态环境。E-mail:shengzi25925@163.com
通讯作者:周忠发(1969-)男,贵州遵义人,教授,博士生导师,主要从事喀斯特生态环境研究。E-mail:fa6897@163.com