[1] Geng Y,Wang L,Jin D,et al.Alpine climate alters the relationships between leaf and root morphological traits but not chemical traits[J].Oecologia,2014,175(2):445~455.
[2] Mcclaugherty C A,Aber J D,Melillo J M.The role of fine roots in the organic matter and nitrogen budgets of two forested ecosystems[J].Ecology,1982,63(5):1481~1490.
[3] Joslin J D,Henderson G S.Organic matter an nutrient associated with fine root turnover in a white oak stand[J].Forestry Science,1987,33(2):330~346.
[4] Burton A J,Jarvey J C,Jarvi M P,et al.Chronic N deposition alters root respiration-tissue N relationship in northern hardwood forests[J].Global Change Biology,2015,18(1):258~266.
[5] Ronald L.Hendrick,Kurt S.Pregitzer.The dynamics of fine root length,biomass,and nitrogen content in two[J].Canadian Journal of Forest Research,1993,23(12):2507~2520.
[6] Gill R A,Jackson R B.Global patterns of root turnover for terrestrial ecosystems[J].New Phytologist,2010,147(1):13~31.
[7] Wang R L,Cheng R M,Feng X H,et al.Spatial heterogeneity of fine root biomass of Pinus massoniana forests in the Three Gorges Reservoir Area,China[J].Forest Ecosystems,2013,15(1):13~23.
[8] 秦大河,王绍武,董光荣.2002.

中国西部环境演变评估-中国西部环境特征及其演变[M].北京:科学出版社.
[9] Liu X,Zhang Y,Han W,et al.Enhanced nitrogen deposition over China[J].Nature,2013,494(7438):459~462.
[10] 程根伟,罗辑.贡嘎山亚高山森林自然演替特征与模拟[J].生态学报,2002,22(7):1049~1056.
[11] Rufat J,DeJong TM.Changes in fine root production and longevity in relation to water and nutrient availability in a Norway spruce stand in northern Sweden[J].Tree Physiology,2001,21(14):1057.
[12] 史顺增,熊德成,冯建新,等.模拟氮沉降对杉木幼苗细根的生理生态影响[J].生态学报,2017,37(1):74~83.
[13] Poorter H,Ryser P.The limits to leaf and root plasticity:what is so special about specific root length?[J].New Phytologist,2015,206(4):1188~1190.
[14] Wang Y,Liu J,He L,et al.Responses of Carbon Dynamics to Nitrogen Deposition in Typical Freshwater Wetland of Sanjiang Plain[J].Journal of Chemistry,2014,2014(2).
[15] 闫国永,邢亚娟,王晓春,等.氮沉降对细根动态和形态特征的影响研究进展[J].中国农学通报,2016,32(15):79~85.
[16] 李兴鹏,宋丽文,李志勤,等.食根动物与植物的相互关系[J].生态学杂志,2008,27(6):999~1004.
[17] Nadelhoffer K J,Johnson L,Laundre J,et al.Fine root production and nutrient content in wet and moist arctic tundras as influenced by chronic fertilization[J].Plant & Soil,2002,242(1):107~113.
[18] 刘金梁,梅莉,谷加存,等.内生长法研究施氮肥对水曲柳和落叶松细根生物量和形态的影响[J].生态学杂志,2009,28(1):1~6.
[19] 涂利华,陈刚,彭勇,等.华西雨屏区苦竹细根分解对模拟氮沉降的响应[J].应用生态学报,2014,25(8):2176~2182.
[20] 樊后保,廖迎春,刘文飞,等.模拟氮沉降对杉木幼苗养分平衡的影响[J].生态学报,2011,31(12):3277~3284.
[21] 庞丽,张一,周志春,等.模拟氮沉降对低磷胁迫下马尾松生长和磷效率的影响[J].应用生态学报,2014,25(5):1275~1282.
[22] 马玉珠,钟全林,靳冰洁,等.中国植物细根碳、氮、磷化学计量学的空间变化及其影响因子[J].植物生态学报,2015,39(2):159~166.
[23] Li W,Jin C,Guan D,et al.The effects of simulated nitrogen deposition on plant root traits:A meta-analysis[J].Soil Biology & Biochemistry,2015,82:112~118.
[24] Güsewell S.N:P ratios in terrestrial plants:variation and functional significance[J].New Phytologist,2010,164(2):243~266.
[25] Koerselman W.The Vegetation N:P Ratio:a New Tool to Detect the Nature of Nutrient Limitation[J].Journal of Applied Ecology,1996,33(6):1441~1450.