The mid-lower reaches of the Hanjiang River Basin, located in the core of economic development in Hubei Province, is an integral part of the Yangtze River Economic Belt. In recent years, the watershed ecosystem has become more sensitive to climate changes and human activities, thus affecting the regional vegetation cover. To maintain a stable watershed ecosystem, it is critical to analyze and evaluate the vegetation change and its response to temperature, precipitation, and human activities in this region. This study, based on the trend analysis, partial correlation analysis, and residual analysis, evaluated the change characteristics of vegetation cover as well as the corresponding driving factors in the basin from 2001 to 2015. The results showed that (1) the overall spatial pattern of vegetation cover in the study area was “high in the west and north, lower on both sides of Hanjiang River, and lowest in the center and southeast,” and the pattern changed parabolically with the increasing elevation. (2) Over the 15 years, vegetation cover in the basin showed an increasing trend, and the increased and decreased areas were 90.72 and 9.23%, respectively. (3) The response of vegetation cover to climatic factors varies greatly depending on the increasing elevation. That is, the lag effect under the impact of temperature disappeared gradually, while it became more evident under the impact of precipitation. (4) On the whole, human activities had a positive effect on the regional vegetation cover. The negative effect in the areas around the Nanyang Basin and the positive effect in most parts of the Jianghan Plain were gradually decreased.

中文翻译：

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2001-2015年汉江流域中下游植被覆盖变化及驱动因素分析

汉江流域中下游地处湖北省经济发展的核心，是长江经济带的重要组成部分。近年来，流域生态系统对气候变化和人类活动更加敏感，从而影响区域植被覆盖。为了维持流域生态系统的稳定，分析和评估该地区植被变化及其对温度、降水和人类活动的响应至关重要。本研究基于趋势分析、偏相关分析和残差分析，对流域2001—2015年植被覆盖变化特征及相应驱动因素进行了评价。结果表明：（1）研究区植被覆盖总体空间格局“西北部高，汉江两岸低，中部和东南部最低”，呈抛物线状变化。升高的高度。(2)15年来流域植被盖度呈增加趋势，增加面积和减少面积分别为90.72%和9.23%。(3)植被盖度对气候因子的响应随海拔的升高而变化很大。即在温度影响下滞后效应逐渐消失，而在降水影响下滞后效应更加明显。(4) 总体而言，人类活动对区域植被覆盖有积极影响。