维普中文期刊产品整合服务
3篇 您的检索式:作者名="Syed Moazzam Nizami"
    题名 作者 年代 出处 被引量
1橡胶树蒸腾特征及其与环境因子的关系显示文摘于2013年2—11月,应用Granier热消散探针对西双版纳地区橡胶树蒸腾进行了连续观测,并同步测定了环境因子(光合有效辐射(PAR)、气温、相对湿度和土壤含水量),结果表明:橡胶树蒸腾速率为昼高夜低的单峰曲线,晴天平均蒸腾速率、蒸腾量是雨天的4倍之多;雨季蒸腾启动时间较干季提前0.5~1.0 h、峰值时间较干季提前2.0~4.5 h,观测阶段日平均蒸腾量为27.84 kg·d-1;4月蒸腾量最大,其值为54.3 mm,11月蒸腾量最小,其值为29.6 mm。干季环境因子对蒸腾速率影响的大小顺序为:气温>相对湿度>PAR>土壤含水量,雨季为:PAR>相对湿度>气温>土壤含水量。干季橡胶林出现水分亏缺,但橡胶树通过其发达的根系可以获取深层土壤水,因此未对其造成严重的水分胁迫。赵玮 张一平 宋清海 张翔 姬红利 Syed Moazzam Nizami 余雷 2014生态学杂志2014,33,7:13
2Carbon stocks of different land uses in the Kumrat valley, Hindu Kush Region of Pakistan显示文摘Changes in land use cover, particularly from forest to agriculture, is a major contributing factor in increasing carbon dioxide(CO2) level in the atmosphere.Using satellite images of 1999 and 2011, land use and land use changes in the Kumrat valley KPK, Pakistan, were determined: a net decrease of 11.56 and 7.46 % occurred in forest and rangeland, while 100 % increase occurred in agriculture land(AL). Biomass in different land uses,forest land(FL), AL, and range land(RL) was determined by field inventory. From the biomass data, the amount of carbon was calculated, considering 50 % of the biomass as carbon. Soil carbon was also determined to a depth of 0–15and 16–30 cm. The average carbon stocks(C stocks) in all land uses ranged from 28.62 ± 13.8 t ha-1in AL to486.6 ± 32.4 t ha-1in pure Cedrus deodara forest. The results of the study confirmed that forest soil and vegetation stored the maximum amount of carbon followed by RL. Conversion of FL and RL to AL not only leads to total loss of about 56 %(from FL conversion) and 37 %(RL conversion) of soil carbon in the last decades but also the loss of a valuable carbon sink. In order to meet the emissions reduction obligations of the Kyoto Protocol, Conservation of forest and RL in the mountainous regions of the Hindu Kush will help Pakistan to meet its emissions reduction goals under the Kyoto Protocol.Adnan Ahmad Syed Moazzam Nizami 2015Journal of Forestry Research2015,26,1:8
3The inventory of the carbon stocks in sub tropical forests of Pakistanfor reporting under Kyoto Protocol显示文摘气候变化(UNFCCC ) 上的联合国框架习惯与森林有关要求报导的网碳股票变化和人为的温室气体排出物,包括那些。这份报纸在潜水艇描述碳股票的地位巴基斯坦的热带森林。巴基斯坦 viz 的副热带的森林里有二种主要潜水艇类型 viz 副热带的 Chir 松和副热带的 broadleaved 森林。样品阴谋的一个网络在四个选择地点被利用。二个地点从潜水艇被选择热带 Chir 松(Pinus roxburghii ) 森林并且二从副热带的 broadleaved 森林。测量和数据获得协议为从 2005 ~ 2010 执行的库存明确地被开发。在总数 261 阴谋(每 1ha .) 被建立。直径,基础区域,高度,体积和生物资源的评价被执行在每四个碳水池估计碳股票未葬、地下实时生物资源。土壤碳股票被做土壤采样也决定。在里面成熟(100 岁) 消瘦在 Ghoragali 和 Lehterar 地点的森林看台, 30.38 和 26.11 m2 的一个吝啬的基础区域 ? 慢桴摥椠 ? 瑀慥獲?Syed Moazzam Nizami 2012Journal of Forestry Research2012,23,3:5
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费