围封对内蒙古典型草原与荒漠草原植被-土壤系统碳密度的影响

闫宝龙,王忠武,屈志强,王静,韩国栋

Effects of enclosure on carbon density of plant-soil system in typical steppe and desert steppe in Nei Mongol, China

Bao-Long YAN,Zhong-Wu WANG,Zhi-Qiang QU,Jing WANG,Guo-Dong HAN

表1 研究地点和生态系统特征

Table 1 Study locations and ecosystem characteristics

草原类型 Steppe type 利用方式 Utilization pattern 经度 Longitude (° E) 纬度 Latitude (° N) 海拔 Altitude (m) 行政区域 Administrative division 土壤类型 Soil type 植物群落 Plant community 典型草原 Typical steppe 全年放牧 Year-round grazing 112.43 43.10 1 081 SY 草原风沙土 Grassland sand soil 冷蒿 Artemisia frigida 113.16 42.12 1 362 SY 淡栗钙土 Light chestnut soil 羊草 Leymus chinensis 113.84 43.83 1 135 SZ 淡栗钙土 Light chestnut soil 西北针茅+冷蒿 Stipa sareptana var. krylovii + Artemisia frigida 114.00 42.54 1 196 XH 栗钙土 Chestnut soil 小叶锦鸡儿+大针茅 Caragana microphylla + Stipa grandis 114.40 42.43 1 258 XH 栗褐土 Cinnamon soil 西北针茅+糙隐子草 Stipa sareptana var. krylovii + Cleistogenes squarrosa 禁牧 Ungrazing 114.43 42.47 1 216 XH 栗钙土 Chestnut soil 冷蒿 Artemisia frigida 115.04 42.26 1 397 ZB 栗钙土 Chestnut soil 西北针茅 Stipa sareptana var. krylovii 115.10 42.60 1 266 ZB 栗褐土 Chestnut soil 西北针茅+冰草 Stipa sareptana var. krylovii + Agropyron cristatum 115.14 42.31 1 334 ZB 栗钙土 Chestnut soil 西北针茅+小叶锦鸡儿 Stipa sareptana var. krylovii + Caragana microphylla 115.27 42.38 1 285 ZB 栗钙土 Chestnut soil 西北针茅+冷蒿 Stipa sareptana var. krylovii + Artemisia frigida 荒漠草原 Desert steppe 全年放牧 Year-round grazing 111.35 43.39 1 050 SY 淡栗钙土 Light chestnut soil 小针茅+画眉草 Stipa klemenzii + Eragrostis pilosa 112.34 43.27 1 016 SY 棕钙土 Brown soil 小针茅+多根葱 Stipa klemenzii + Allium polyrhizum 112.58 42.95 1 094 SY 淡栗钙土 Light chestnut soil 小针茅+无芒隐子草 Stipa klemenzii + Cleistogenes songorica 113.37 43.41 1 060 SY 淡栗钙土 Light chestnut soil 小针茅 Stipa klemenzii 112.66 44.57 1 193 SZ 棕钙土 Brown soil 西北针茅 Stipa sareptana var. krylovii 113.34 43.95 949 SZ 棕钙土 Brown soil 西北针茅+小叶锦鸡儿 Stipa sareptana var. krylovii + Caragana microphylla 113.63 43.62 1 096 SZ 淡栗钙土 Light chestnut soil 西北针茅 Stipa sareptana var. krylovii 113.83 43.50 1 036 SZ 淡栗钙土 Light chestnut soil 西北针茅+狭叶锦鸡儿 Stipa sareptana var. krylovii + Caragana microphylla 禁牧 Ungrazing 112.74 42.77 1 097 SY 淡栗钙土 Light chestnut soil 西北针茅 Stipa sareptana var. krylovii