浙江省植被覆盖时空动态及其与生态气候指标的关系

对1982-2006年间浙江省归一化植被指数（NDVI）的时空变化及其与关键生态气候指标（生物热量指数和生物干湿度指数）的相关性进行了研究.结果表明：研究期间，浙江省植被覆盖总体呈缓慢下降趋势，NDVI显著减少的地区约占全省面积的30.71%；生态气候指标与滞后一年的NDVI显著相关，其中生物热量指数与NDVI呈显著负相关，生物干湿度指数与NDVI呈显著正相关，说明研究区湿度的增加可促进植被长势，而过高的热量对植被生长则具有明显的抑制作用.

Spatiotemporal variations of vegetation cover in Zhejiang Province and their relations to eco-climatic indices

This paper studied the spatiotemporal variations of normalized difference vegetation index (NDVI) in Zhejiang Province in 1982-2006, and their relations to the dominant eco-climatic factors in the Province. In the study period, the vegetation cover in the Province had a slowly decreasing trend, and the area with a significant decrease of NDVI occupied 30.71% of the total. There were significant relationships between the eco-climatic indices and the NDVI of the following year. The NDVI was significantly positively correlated with biological aridity/humidity index, and significantly negatively correlated with biological warmth index, suggesting that the increase of humidity could promote vegetation growth, while excessive heat could inhibit the vegetation growth in the study area.